{"type": "FeatureCollection", "features": [{"id": "10.1007/s10533-012-9808-y", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-30T16:15:14Z", "type": "Journal Article", "created": "2012-10-31", "title": "Earthworms, Litter And Soil Carbon In A Northern Hardwood Forest", "description": "The important role of soil carbon (C) in the global C cycle has stimulated interest in better understanding the mechanisms regulating soil C storage and its stabilization. Exotic earthworm invasion of northern forest soils in North America can affect soil C pools, and we examined their effects on these mechanisms by adding 13C labeled leaf litter to adjacent northern hardwood forests with and without earthworms. Two types of labeled litter were produced, one with the 13C more concentrated in structural (S) components and the other in non-structural (NS) components, to evaluate the role of biochemical differences in soil C stabilization. Earthworm invasions have reduced soil C storage in the upper 20\u00a0cm of the soil profile by 37\u00a0%, mostly by eliminating surface organic horizons. Despite rapid mixing of litter into mineral soil and its incorporation into aggregates, mineral soil C has not increased in the presence of earthworms. Incorporation of litter C into soil and microbial biomass was not affected by biochemical differences between S versus NS labeled litter although NS litter C was assimilated more readily into earthworm biomass and S litter C into fungal hyphae. Apparently, the net effect of earthworm mixing of litter and forest floor C into mineral soil, plus stabilization of that C in aggregates, is counterbalanced by earthworm bioturbation and possible priming effects. Our results support recent arguments that biochemical recalcitrance is not a major contributor to the stabilization of soil C.", "keywords": ["IMPACTS", "Decomposition", "STABILIZATION", "Multidisciplinary", "biomass", "MICROBIAL BIOMASS", "INVASION", "Microbial biomass", "TEMPERATE", "04 agricultural and veterinary sciences", "SEQUESTRATION", "15. Life on land", "Fungal hyphae", "Aggregation", "Microbial", "Sugar maple", "FORESTS", "DISSOLVED ORGANIC-MATTER", "PATTERNS", "0401 agriculture", " forestry", " and fisheries", "USA", "Environmental Sciences", "Geosciences", "Isotope labeling", "CENTRAL NEW-YORK"]}, "links": [{"href": "https://doi.org/10.1007/s10533-012-9808-y"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeochemistry", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s10533-012-9808-y", "name": "item", "description": "10.1007/s10533-012-9808-y", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s10533-012-9808-y"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2012-11-01T00:00:00Z"}}, {"id": "10.1007/s10705-007-9154-y", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-30T16:15:18Z", "type": "Journal Article", "created": "2007-11-02", "title": "Soil Organic Carbon Dynamics Of Improved Fallow-Maize Rotation Systems Under Conventional And No-Tillage In Central Zimbabwe", "description": "Fallowing increases soil organic carbon (SOC) during the fallowing phase. However, this benefit is lost quickly during the cropping phase. The objective of this study was to evaluate SOC dynamics of an improved fallow-maize rotation under no-tillage (NT) and conventional tillage (CT) from time of fallow termination, through the next two cropping seasons. The treatments studied were improved fallows of Acacia angustissima (A. angustissima) and Sesbania sesban (S. sesban), natural fallow and continuous maize. Our hypothesis is that fallowing maintained higher SOC and lower soil bulk densities through the cropping phase when compared with continuous maize system and that NT maintained higher SOC when compared with CT. Soil organic carbon was significantly greater under fallows than under continuous maize from fallow termination to the end of the second cropping season. Soil organic carbon for the 0\u20135 cm depths was 11.0, 10.0, 9.4 and 6.6 g kg\u22121 for A. angustissima, S. sesban, natural fallow and continuous maize, respectively at fallow termination. After two cropping seasons SOC for the same depth was 8.0, 7.0, 6.1, 5.9 g kg\u22121 under CT and 9.1, 9.0, 8.0, 6.0 g kg\u22121 under NT for A. angustissima, S. sesban, natural fallow and continuous maize, respectively. Total SOC stocks were also higher under fallows when compared with continuous maize at fallow termination and after two cropping seasons. Soil bulk densities were lower under fallows when compared with continuous maize during the period of study. We concluded that fallows maintained greater SOC and NT sequestered more SOC than CT. Acacia angustissima was the better tree legume fallow for SOC sequestration when compared with S. sesban or natural fallow because it maintained higher SOC and lower bulk densities after two seasons of maize cropping.", "keywords": ["2. Zero hunger", "crop-rotation", "aggregation", "sequestration", "04 agricultural and veterinary sciences", "stability", "15. Life on land", "matter", "nitrogen", "tropical alfisol", "conservation tillage", "0401 agriculture", " forestry", " and fisheries", "physical-properties", "management"]}, "links": [{"href": "https://doi.org/10.1007/s10705-007-9154-y"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Nutrient%20Cycling%20in%20Agroecosystems", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s10705-007-9154-y", "name": "item", "description": "10.1007/s10705-007-9154-y", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s10705-007-9154-y"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2007-11-03T00:00:00Z"}}, {"id": "10.1007/s10705-010-9377-1", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-30T16:15:19Z", "type": "Journal Article", "created": "2010-06-03", "title": "Quality Of Soil Organic Matter And C Storage As Influenced By Cropping Systems In Northwestern Alberta, Canada", "description": "Crop rotations and reduction in tillage are commonly recommended for sustained crop production and enhancing soil quality. Our objective was to evaluate the long-term effects of cropping systems (1968\u20131992) on soil structure, carbon storage and the quality of soil organic matter. The study was conducted on a silt clay loam soil (Typic Cryoboralf) near Beaverlodge, Alberta, The cropping systems were: (a) continuous barley (Hordeum vulgare L.) (CB); (b) continuous bromegrass (Bromus inermiss Leyess.) (CG); (c) continuous forage legume (Medicago sativa L. until 1977, and Trifolium pratense L. since 1978) (CL); and (d) 3\u00a0years of bromegrass-legume forage alternating with 3\u00a0years of barley (RF). Our data showed that the CG and CL treatments had more stable aggregates with greater mean weight diameter (MWD) than soil under continuous barley. Organic C, total N and the light fraction in soil under CG and CL were higher than those of the other two treatments. Soil under CG had the highest and CB the lowest amounts of acid-hydrolyzable monosacchrides (comprising glucose, arabinose, xylose, mannose and galactose). Higher galactose\u00a0+\u00a0mannose concentration in soil under CG indicated a higher soil microbiological activity. Microbial biomass C and N followed the trend among treatments in whole and light fraction organic matter, and total extracted sugars. Soil organic matter 13C-NMR spectroscopy showed that: (i) soil under CB contained the highest amounts of aromatic and the lowest content of aliphatic-C, (ii) soil under CL had the lowest phenolic-C and the least aromaticity, and (iii) soil under CG and RF had the highest amounts of aliphatic-C which includes labile substances such as amino acids and carbohydrates, indicating an improvement in the quality of organic matter. It is concluded that perennial forage crops can improve soil structure and soil organic matter quality and quantity as compared with cereal monoculture.", "keywords": ["2. Zero hunger", "Aggregation", "13C-NMR spectroscopy", "Carbon storage", "Carbohydrates", "Microbial biomass", "Light fraction organic matter", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "6. Clean water"], "contacts": [{"organization": "Arshad, M. A., Soon, Y. K., Ripmeester, J. A,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1007/s10705-010-9377-1"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Nutrient%20Cycling%20in%20Agroecosystems", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s10705-010-9377-1", "name": "item", "description": "10.1007/s10705-010-9377-1", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s10705-010-9377-1"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2010-06-04T00:00:00Z"}}, {"id": "10.5061/dryad.sf7m0cg30", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-30T16:22:31Z", "type": "Dataset", "title": "Data from: Multi-taxon inventory reveals highly consistent biodiversity responses to ecospace variation", "description": "unspecifiedThe Biowide project including major aspects of collection of soil and Malaise trapping has been described elsewhere (Brunbjerg et al 2019), with specific publication and analysis of the fungal data in Fr\u00f8slev et al (2019) and the eukaryote data in Fl\u00f8jgaard et al (2019). For the arthropod data,\u00a0a\u00a0malaise trap ws placed in the centre of each of the 130 sampling sites and left open for 1 week. Two such trapping events were performed with some weeks apart in the same year.\u00a0The arthropod DNA dataset was produced by extracting DNA from the ethanol from the bulk insect Malaise traps and metabarcoding with the arthropod specific COI primers ZBJ-ArtF1c and ZBJ-ArtR2c. 45 ml ethanol and 1.5 ml of 3M sodium acetate were added to a 50 ml centrifuge tube, and left in a freezer for DNA precipitation overnight, then centrifuged for 40 minutes. The dried pellet was extracted with the Qiagen DNeasy blood and tissue kit (Qiagen, Germany) with minor modifications. The extracted DNA was normalized, amplified, sequenced and analyzed according to the overall procedures described in Brunbjerg, et al (2019). As for the eukaryote and fungal datasets OTU tables were constructed following the overall pipeline suggested in Fr\u00f8slev, et al. (2017), to derive OTUs that approximates species level delimitation.This consisted of an initial processing with DADA2 to identify exact amplicon sequence variants including removal of chimeras and post-clustering curation using LULU. Taxonomic assignment was done with a custom script (as in Fl\u00f8jgaard, et al 2019). OTUs not assigned to Arthropoda were discarded before further analyses. Brunbjerg, A. K., Bruun, H. H., Br\u00f8ndum, L., Classen, A. T., Dalby, L., Fog, K., ... & H\u00f8ye, T. T. (2019). A systematic survey of regional multi-taxon biodiversity: evaluating strategies and coverage. BMC ecology, 19(1), 43. Fl\u00f8jgaard C, Fr\u00f8slev TG, Brunbjerg AK, Bruun HH, Moeslund J, Hansen AJ, & Ejrn\u00e6s R. 2019. Predicting provenance of forensic soil samples: Linking soil to ecological habitats by metabarcoding and supervised classification. PloS one, 14(7), e0202844. Fr\u00f8slev TG, Kj\u00f8ller R, Bruun HH, Ejrn\u00e6s R, Hansen AJ, L\u00e6ss\u00f8e T, Heilmann-Clausen J. 2019. Man against machine: Do fungal fruitbodies and eDNA give similar biodiversity assessments across broad environmental gradients? Biological Conservation 233, 201-212. Fr\u00f8slev TG, Kj\u00f8ller R, Bruun HH, Ejrn\u00e6s R, Brunbjerg AK, Pietroni C, Hansen AJ. 2017. Algorithm for post-clustering curation of DNA amplicon data yields reliable biodiversity estimates. Nature Communications 8:1188. doi:10.1038/s41467-017-01312-x.
", "keywords": ["primary producers", "13. Climate action", "taxonomic aggregation", "abiotic environment", "Malaise trap", "14. Life underwater", "15. Life on land", "heterotrophs", "carbon resources"], "contacts": [{"organization": "Fr\u00f8slev, Tobias Guldberg, Brunbjerg, Ane Kirstine, Bruun, Hans Henrik Kehlet, Dalby, Lars, Classen, Aim\u00e9e, Fl\u00f8jgaard, Camilla, Hansen, Oskar, Hoye, Toke, Moeslund, Jesper, Svenning, Jens-Christian, Ejrn\u00e6s, Rasmus,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5061/dryad.sf7m0cg30"}, {"rel": "self", "type": "application/geo+json", "title": "10.5061/dryad.sf7m0cg30", "name": "item", "description": "10.5061/dryad.sf7m0cg30", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5061/dryad.sf7m0cg30"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-06-19T00:00:00Z"}}, {"id": "10.1007/s42832-020-0060-4", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-30T16:15:46Z", "type": "Journal Article", "created": "2020-11-02", "title": "Microplastic fiber and drought effects on plants and soil are only slightly modified by arbuscular mycorrhizal fungi", "description": "Abstract

Microplastics are increasingly recognized as a factor of global change. By altering soil inherent properties and processes, ripple-on effects on plants and their symbionts can be expected. Additionally, interactions with other factors of global change, such as drought, can influence the effect of microplastics. We designed a greenhouse study to examine effects of polyester microfibers, arbuscular mycorrhizal (AM) fungi and drought on plant, microbial and soil responses. We found that polyester microfibers increased the aboveground biomass of Allium cepa under well-watered and drought conditions, but under drought conditions the AM fungal-only treatment reached the highest biomass. Colonization with AM fungi increased under microfiber contamination, however, plant biomass did not increase when both AM fungi and fibers were present. The mean weight diameter of soil aggregates increased with AM fungal inoculation overall but decreased when the system was contaminated with microfibers or drought stressed. Our study adds additional support to the mounting evidence that microplastic fibers in soil can affect the plant-soil system by promoting plant growth, and favoring key root symbionts, AM fungi. Although soil aggregation is usually positively influenced by plant roots and AM fungi, and microplastic promotes both, our results show that plastic still had a negative effect on soil aggregates. Even though there are concerns that microplastic might interact with other factors of global change, our study revealed no such effect for drought.

", "keywords": ["0301 basic medicine", "2. Zero hunger", "570", "Organic matter decomposition", "Drought", "Microplastic", "Arbuscular mycorrhizal fungi", "500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie::570 Biowissenschaften; Biologie", "Root traits", "15. Life on land", "01 natural sciences", "6. Clean water", "03 medical and health sciences", "13. Climate action", "Soil aggregation", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://link.springer.com/content/pdf/10.1007/s42832-020-0060-4.pdf"}, {"href": "https://doi.org/10.1007/s42832-020-0060-4"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20Ecology%20Letters", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s42832-020-0060-4", "name": "item", "description": "10.1007/s42832-020-0060-4", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s42832-020-0060-4"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-11-02T00:00:00Z"}}, {"id": "10.1016/j.chemosphere.2019.03.190", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-30T16:16:22Z", "type": "Journal Article", "created": "2019-04-01", "title": "Dissolution and aggregation kinetics of zero valent copper nanoparticles in (simulated) natural surface waters: Simultaneous effects of pH, NOM and ionic strength", "description": "The combined effects of pH, dissolved organic carbon (DOC) and Ca2+/Mg2+ on the dissolution and aggregation kinetics of zero valent copper engineered nanoparticles (Cu0 ENPs) were investigated. The dissolution and aggregation of the particles were studied in (a) synthetic aqueous media, similar in chemistry to natural surface waters, and (b) natural surface waters samples, for up to 32 or 24\u202fh. The DOC stabilized the particles and prevented aggregation, and thus increased the available surface area. The higher available surface area in turn accelerated the dissolution of the particles. The presence of Ca2+/Mg2+, however, changed the aggregation and the dissolution of the DOC-stabilized particles. The influence of Ca2+/Mg2+ on DOC-stabilized particles was different at different pH's. In the absence of DOC, 10\u202fmM of Ca2+/Mg2+ induced charge reversal on the particles and caused particle stability against aggregation. This subsequently increased particles dissolution. The results obtained with regard to dissolution and aggregation of the particles in natural surface waters were compared with those determined for the synthetic waters. This comparison showed that the behavior of the particles in the natural surface waters was mostly similar to the behavior determined for media at pH 9. Overall, the current study provides some novel insights into the simultaneous effects of physicochemical parameters of water on particle stability against aggregation and dissolution, and provides data about how the processes of aggregation and dissolution of Cu0 ENPs interact and jointly determine the overall particle fate.", "keywords": ["Cations", " Divalent", "Environmental fate", "Osmolar Concentration", "0211 other engineering and technologies", "Metal Nanoparticles", "Fresh Water", "02 engineering and technology", "Hydrogen-Ion Concentration", "01 natural sciences", "Physico-chemical parameters", "6. Clean water", "Aggregation", "Kinetics", "Solubility", "Aggregation; Complexation; Copper nanoparticles; Dissolution; Environmental fate; Natural water; Physico-chemical parameters", "Complexation", "Natural water", "Calcium", "Magnesium", "Copper nanoparticles", "Organic Chemicals", "Dissolution", "Copper", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.chemosphere.2019.03.190"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Chemosphere", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.chemosphere.2019.03.190", "name": "item", "description": "10.1016/j.chemosphere.2019.03.190", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.chemosphere.2019.03.190"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-07-01T00:00:00Z"}}, {"id": "10.1016/j.colsurfa.2018.05.091", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-30T16:16:22Z", "type": "Journal Article", "created": "2018-05-30", "title": "Protein affinity for TiO2 and CeO2 manufactured nanoparticles. From ultra-pure water to biological media", "description": "Abstract In this study, we investigated the Bovine Serum Albumin (BSA) protein affinity for manufactured metal oxide nanoparticles (NPs), respectively TiO2 and CeO2. Changes in the NPs surface charge property and resulting stability were investigated by considering pH-dependent electrostatic scenarios and contrasting solution conditions from ultra-pure water to more complex biological mixtures regarding the ionic and protein composition. After careful characterization of NPs and BSA as a function of pH, we used variable BSA concentrations to study the impact of BSA adsorption and we found that protein affinity for NPs was largely controlled by electrostatic interactions. We demonstrated that in ultra-pure water increasing gradually the BSA concentration results in aggregation when BSA and NPs charges are opposite (charge neutralization). On the other hand, when NPs were added in a solution containing BSA, aggregation was prevented due to corona formation. Then, the ultrapure water was replaced by Dulbecco\u2019s phosphate-buffered saline (DPBS) to mimic the blood composition and ionic strength. BSA was then replaced by fetal calf serum (FCS) to mimic the great variety of proteins and other biomolecules found in the blood. Our findings indicate that, in all cases, initially dispersed TiO2 or CeO2 NPs are stabilized by the presence of proteins and that protein adsorption is fast regarding NPs homoaggregation. Proteins are found to improve NPs dispersion even at high ionic strength with overarching consequences on the fate, transport and related risk of NPs in living systems.", "keywords": ["Aggregation", "info:eu-repo/classification/ddc/550", "TiO2 and CeO2", "ddc:550", "0211 other engineering and technologies", "Nanoparticles", "Protein adsorption", "02 engineering and technology", "01 natural sciences", "Protein affinity", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.colsurfa.2018.05.091"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Colloids%20and%20Surfaces%20A%3A%20Physicochemical%20and%20Engineering%20Aspects", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.colsurfa.2018.05.091", "name": "item", "description": "10.1016/j.colsurfa.2018.05.091", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.colsurfa.2018.05.091"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2018-09-01T00:00:00Z"}}, {"id": "10.1016/j.cosust.2018.11.002", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-30T16:16:23Z", "type": "Journal Article", "created": "2018-11-28", "title": "Models for assessing engineered nanomaterial fate and behaviour in the aquatic environment", "description": "Engineered nanomaterials (ENMs, material containing
particles with at least one dimension less than 100 nm) are
present in a range of consumer products and could be
released into the environment from these products during
their production, use or end-of-life. The high surface to
volume ratio of nanomaterials imparts a high reactivity,
which is of interest for novel applications but may raise
concern for the environment. In the absence of
measurement methods, there is a need for modelling to
assess likely concentrations and fate arising from current
and future releases. To assess the capability that exists to
do such modelling, progress in modelling ENM fate since
2011 is reviewed. ENM-specific processes represented in
models are mainly limited to aggregation and, in some
instances, dissolution. Transformation processes (e.g.
sulphidation), the role of the manufactured coatings,
particle size distribution and particle form and state are still
usually excluded. Progress is also being made in modelling
ENMs at larger scales. Currently, models can give a
reasonable assessment of the fate of ENMs in the
environment, but a full understanding will likely require
fuller inclusion of these ENM-specific processes.", "keywords": ["RELEASE", "transformation", "aggregation", "Urbanisation", "METALLIC NANOPARTICLES", "QUANTIFICATION", "SILVER NANOPARTICLES", "01 natural sciences", "6. Clean water", "modelling", "engineered nanomaterials", "NanoFASE", "TIO2 NANOPARTICLES", "Life Science", "WATER", "NANO-SILVER", "EXPOSURE", "RISK-ASSESSMENT", "105906 Environmental geosciences", "ZINC-OXIDE", "aquatic environment", "105906 Umweltgeowissenschaften", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.cosust.2018.11.002"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Current%20Opinion%20in%20Environmental%20Sustainability", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.cosust.2018.11.002", "name": "item", "description": "10.1016/j.cosust.2018.11.002", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.cosust.2018.11.002"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-02-01T00:00:00Z"}}, {"id": "10.1016/j.isprsjprs.2019.02.004", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-30T16:17:00Z", "type": "Journal Article", "created": "2019-02-15", "title": "Including Sentinel-1 radar data to improve the disaggregation of MODIS land surface temperature data", "description": "Abstract The use of land surface temperature (LST) for monitoring the consumption and water status of crops requires data at fine spatial and temporal resolutions. Unfortunately, the current spaceborne thermal sensors provide data at either high temporal (e.g. MODIS: Moderate Resolution Imaging Spectro-radiometer) or high spatial (e.g. Landsat) resolution separately. Disaggregating low spatial resolution (LR) LST data using ancillary data available at high spatio-temporal resolution could compensate for the lack of high spatial resolution (HR) LST observations. Existing LST downscaling approaches generally rely on the fractional green vegetation cover (fgv) derived from HR reflectances but they do not take into account the soil water availability to explain the spatial variability in LST at HR. In this context, a new method is developed to disaggregate kilometric MODIS LST at 100\u202fm resolution by including the Sentinel-1 (S-1) backscatter, which is indirectly linked to surface soil moisture, in addition to the Landsat-7 and Landsat-8 (L-7 & L-8) reflectances. The approach is tested over two different sites \u2013 an 8\u202fkm by 8\u202fkm irrigated crop area named \u201cR3\u201d and a 12\u202fkm by 12\u202fkm rainfed area named \u201cSidi Rahal\u201d in central Morocco (Marrakech) \u2013 on the seven dates when S-1, and L-7 or L-8 acquisitions coincide with a one-day precision during the 2015\u20132016 growing season. The downscaling methods are applied to the 1\u202fkm resolution MODIS-Terra LST data, and their performance is assessed by comparing the 100\u202fm disaggregated LST to Landsat LST in three cases: no disaggregation, disaggregation using Landsat fgv only, disaggregation using both Landsat fgv and S-1 backscatter. When including fgv only in the disaggregation procedure, the mean root mean square error in LST decreases from 4.20 to 3.60\u202f\u00b0C and the mean correlation coefficient (R) increases from 0.45 to 0.69 compared to the non-disaggregated case within R3. The new methodology including the S-1 backscatter as input to the disaggregation is found to be systematically more accurate on the available dates with a disaggregation mean error decreasing to 3.35\u202f\u00b0C and a mean R increasing to 0.75.", "keywords": ["LST", "2. Zero hunger", "550", "0211 other engineering and technologies", "02 engineering and technology", "15. Life on land", "01 natural sciences", "333", "6. Clean water", "MODIS/Terra", "Disaggregation", "disaggregation", "[SDE.ES] Environmental Sciences/Environment and Society", "MODIS/Terra Landsat", "MODISTerra Landsat", "Sentinel-1", "Soil moisture", "soil moisture", "[SDE.ES]Environmental Sciences/Environment and Society", "Landsat", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.isprsjprs.2019.02.004"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/ISPRS%20Journal%20of%20Photogrammetry%20and%20Remote%20Sensing", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.isprsjprs.2019.02.004", "name": "item", "description": "10.1016/j.isprsjprs.2019.02.004", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.isprsjprs.2019.02.004"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-04-01T00:00:00Z"}}, {"id": "10.1016/j.geoderma.2011.06.014", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-30T16:16:54Z", "type": "Journal Article", "created": "2011-07-23", "title": "Tillage Practices Of A Clay Loam Soil Affect Soil Aggregation And Associated C And P Concentrations", "description": "article i nfo Under long-term cultivation, greater accumulations of soil organic matter (SOM) and phosphorus (P) are found in the surface soil layer under no-till (NT) versus mouldboard ploughing (MP) practices. Our objective was to evaluate the effects of NT and MP practices on concomitant SOM and P distribution and sorption characteristics among water-stable aggregates and non-aggregated particles. The study was conducted in Quebec, Canada, as part of a long-term corn and soybean rotation experiment (established since 1992) on a clay loam soil of the St-Blaise series (Dark Grey Gleysol). Soil samples were collected in the fall of 2007 in the 0-5 cm layer from plots under NT and MP receiving 35 kg P ha -1 and 160 kg N ha -1 . Samples were separated into three water-stable aggregate-sized classes (macro, 2000-250 \u03bcm; meso, 250-180 \u03bcm; micro, 180- 53 \u03bcm) and (silt+clay)-sized particles (b53 \u03bcm) using wet-sieving. Macro aggregates made up 60.2 and 48.5% of total soil weight under NT and MP, respectively. In wet-sieved soils from NT plots, water-extractable P (Pw) concentration increased in the order (silt+clay)-sized particlesbmicro-bmeso-bmacro-aggregates; under MP, micro-, meso-, and macro-aggregate fractions had the same Pw concentration, while the (silt+clay)- sized particles showed the lowest Pw concentration. The hierarchy observed among aggregate-sized classes", "keywords": ["2. Zero hunger", "ORGANIC CARBON", "[SDV.EE] Life Sciences [q-bio]/Ecology", " environment", "SOL ARGILO-LIMONEUX", "MOULDBOARD PLOUGHING", "SOIL AGGREGATION", "0401 agriculture", " forestry", " and fisheries", "NO TILL", "04 agricultural and veterinary sciences", "PHOSPHORUS DYNAMICS", "15. Life on land", "6. Clean water"]}, "links": [{"href": "https://doi.org/10.1016/j.geoderma.2011.06.014"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geoderma.2011.06.014", "name": "item", "description": "10.1016/j.geoderma.2011.06.014", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2011.06.014"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2011-09-01T00:00:00Z"}}, {"id": "10.1016/j.geoderma.2011.09.004", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-30T16:16:54Z", "type": "Journal Article", "created": "2011-11-05", "title": "Do Earthworms And Roots Cooperate To Build Soil Macroaggregates? A Microcosm Experiment", "description": "Abstract Soil ecosystem engineers are major actors of soil macroaggregation, a process that drives the production of ecosystem services by soils. However, our inability to identify the origins of different types of macroaggregates found in soils is an obstacle to describing and modeling their dynamics and associated processes (C sequestration; hydraulic properties). This laboratory study investigated mechanisms of biological soil macroaggregation by two different earthworm species (Apporectodea caliginosa (Savigny) and Allolobophora chlorotica (Savigny) and two plant species (Trifolium pratense, Plantago lanceolata L.), in isolation and in all possible combinations. Near infrared (NIR) spectral analysis significantly discriminated macroaggregates according to the organisms that created them since each organism produced macroaggregates with distinct NIR signals (p", "keywords": ["570", "Earthworm-root interactions", "soil fertility", "earthworms", "NIR spectral signature", "04 agricultural and veterinary sciences", "fertilidad del suelo", "15. Life on land", "soil biology", "unidades estructurales de suelos", "Soil macroaggregation", "0401 agriculture", " forestry", " and fisheries", "biolog\u00eda del suelo", "lombriz de tierra", "soil structural units", "Earthworm casts"], "contacts": [{"organization": "Zangerle, A, Pando, A, Lavelle, Patrick M.,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.geoderma.2011.09.004"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geoderma.2011.09.004", "name": "item", "description": "10.1016/j.geoderma.2011.09.004", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2011.09.004"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2011-11-01T00:00:00Z"}}, {"id": "10.1016/j.geoderma.2012.10.022", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-30T16:16:55Z", "type": "Journal Article", "created": "2012-11-17", "title": "Soil Aggregation And Organic Carbon Protection In A No-Tillage Chronosequence Under Mediterranean Conditions", "description": "Open AccessPeer reviewed", "keywords": ["2. Zero hunger", "Soil organic carbon", "Soil aggregation", "Chronosequence", "No-tillage", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "Semiarid system"]}, "links": [{"href": "https://doi.org/10.1016/j.geoderma.2012.10.022"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geoderma.2012.10.022", "name": "item", "description": "10.1016/j.geoderma.2012.10.022", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2012.10.022"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-02-01T00:00:00Z"}}, {"id": "10.1016/j.proeng.2017.09.509", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-30T16:17:14Z", "type": "Journal Article", "created": "2017-09-12", "title": "Fatigue assessment of a wind turbine blade when output from multiple aero-elastic simulators are available", "description": "Open AccessAero-elasticity is a term that refers to the interaction between the aerodynamic, inertial and elastic loads when a structure is exposed to fluid flow such as turbulent wind inflow. Various commercial and research-based simulators are available to compute the wind turbine aero-elastic loads. These aero-elastic simulators are of varying complexity and might bear different underlying assumptions, pertaining to physics, mathematical and computational formulations. However, currently established practice dictates that the adopted aero-elastic simulators are verified and validated on the basis of measurements from test wind turbines. As a result, it is generally hard to establish one simulator as superior to another in terms of their predicted output. The objective in this paper is to statistically aggregate the fatigue load on a wind turbine blade when simultaneous simulations are performed using multiple simulators. The simulators of the wind turbine blade are of varying fidelity, and uncertainty in the modelling and assumptions on the model inputs are implicitly included, and taken into account in the statistical analysis. The main concept followed here is that rather than treating the output of the simulators as individual information sources, we consider them as part of an ensemble, which can be clustered and then aggregated to predict the \u201cmost likely\u201d fatigue load, hence reducing the inherent model-form uncertainty.", "keywords": ["Finite elements", "Uncertainty", "Wind turbine; Aeroelasticity; Uncertainty; Fatigue; Ensemble Aggregation; Data fusion; Finite elements; Machine learning", "02 engineering and technology", "Data fusion", "7. Clean energy", "01 natural sciences", "0201 civil engineering", "Ensemble Aggregation", "Machine learning", "Aeroelasticity", "0101 mathematics", "Wind turbine", "Fatigue"]}, "links": [{"href": "https://doi.org/10.1016/j.proeng.2017.09.509"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Procedia%20Engineering", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.proeng.2017.09.509", "name": "item", "description": "10.1016/j.proeng.2017.09.509", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.proeng.2017.09.509"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2017-01-01T00:00:00Z"}}, {"id": "10.1016/j.scitotenv.2015.03.027", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-30T16:17:18Z", "type": "Journal Article", "created": "2015-03-13", "title": "Tillage And Crop Residue Management Methods Had Minor Effects On The Stock And Stabilization Of Topsoil Carbon In A 30-Year Field Experiment", "description": "We studied the effects of tillage and straw management on soil aggregation and soil carbon sequestration in a 30-year split-plot experiment on clay soil in southern Finland. The experimental plots were under conventional or reduced tillage with straw retained, removed or burnt. Wet sieving was done to study organic carbon and soil composition divided in four fractions: 1) large macroaggregates, 2) small macroaggregates, 3) microaggregates and 4) silt and clay. To further estimate the stability of carbon in the soil, coarse particulate organic matter, microaggregates and silt and clay were isolated from the macroaggregates. Total carbon stock in the topsoil (equivalent to 200 kg m(-2)) was slightly lower under reduced tillage (5.0 kg m(-2)) than under conventional tillage (5.2 kg m(-2)). Reduced tillage changed the soil composition by increasing the percentage of macroaggregates and decreasing the percentage of microaggregates. There was no evidence of differences in the composition of the macroaggregates or carbon content in the macroaggregate-occluded fractions. However, due to the higher total amount of macroaggregates in the soil, more carbon was bound to the macroaggregate-occluded microaggregates in reduced tillage. Compared with plowed soil, the density of deep burrowing earthworms (Lumbricus terrestris) was considerably higher under reduced tillage and positively associated with the percentage of large macroaggregates. The total amount of microbial biomass carbon did not differ between the treatments. Straw management did not have discernible effects either on soil aggregation or soil carbon stock. We conclude that although reduced tillage can improve clay soil structure, generally the chances to increase topsoil carbon sequestration by reduced tillage or straw management practices appear limited in cereal monoculture systems of the boreal region. This may be related to the already high C content of soils, the precipitation level favoring decomposition and aggregate turnover in the winter with topsoil frost.", "keywords": ["lierot", "olki", "hiili", "01 natural sciences", "630", "soil aggregation", "kevennetty maanmuokkaus", "soil carbon", "particulate organic matter", "0105 earth and related environmental sciences", "2. Zero hunger", "maaper\u00e4", "stubble management", "reduced tillage", "04 agricultural and veterinary sciences", "viljelymaa", "ta4111", "15. Life on land", "kasvinviljely", "13. Climate action", "microbial biomass carbon", "mikro-organismit", "maan rakenne", "0401 agriculture", " forestry", " and fisheries", "Kasvintuotanto", "orgaaninen aines", "earthworm activity"]}, "links": [{"href": "https://doi.org/10.1016/j.scitotenv.2015.03.027"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Science%20of%20The%20Total%20Environment", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.scitotenv.2015.03.027", "name": "item", "description": "10.1016/j.scitotenv.2015.03.027", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.scitotenv.2015.03.027"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2015-06-01T00:00:00Z"}}, {"id": "10.1016/j.scitotenv.2018.06.267", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-05-30T16:17:19Z", "type": "Journal Article", "created": "2018-06-28", "title": "A comparison of disaggregated nitrogen budgets for Danish agriculture using Europe-wide and national approaches", "description": "Spatially detailed information on agricultural nitrogen (N) budgets is relevant to identify regions where there is a need for a reduction in inputs in view of various forms of N pollution. However, at the scale of the European Union, there is a lack of consistent, reliable, high spatial resolution data necessary for the calculation of regional N losses. To gain insight in the reduction in uncertainty achieved by using higher spatial resolution input data. This was done by comparing spatially disaggregated agricultural N budgets for Denmark for the period 2000-2010, generated by two versions of the European scale model Integrator, a version using high spatial resolution national data for Denmark (Integrator-DK) and a version using available data at the EU scale (Integrator-EU). Results showed that the national N fluxes in the N budgets calculated by the two versions of the model were within 1-5% for N inputs by fertilizer and manure excretion, but inputs by N fixation and N mineralisation differed by 50-100% and N uptake also differed by ca 25%, causing a difference in N leaching and runoff of nearly 50%. Comparison with an independently derived Danish national budget appeared generally to be better with Integrator-EU results in 2000 but with Integrator-DK results in 2010. However, the spatial distribution of manure distribution and N losses from Integrator-DK were closer to observed distributions than those from Integrator-EU. We conclude that close attention to local agronomic practices is needed when using a leaching fraction approach and that for effective support of environmental policymaking, Member States need to collect or submit high spatial resolution agricultural data to Eurostat.", "keywords": ["Budgets", "2. Zero hunger", "Disaggregation", "Nitrogen", "13. Climate action", "Agricultural soils", "15. Life on land", "National", "01 natural sciences", "Modelling", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.scitotenv.2018.06.267"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Science%20of%20The%20Total%20Environment", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.scitotenv.2018.06.267", "name": "item", "description": "10.1016/j.scitotenv.2018.06.267", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.scitotenv.2018.06.267"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2018-12-01T00:00:00Z"}}, {"id": "10.1016/j.scitotenv.2018.08.176", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-30T16:17:19Z", "type": "Journal Article", "created": "2018-08-15", "title": "Heteroaggregation of CeO2 nanoparticles in presence of alginate and iron (III) oxide", "description": "When manufactured nanoparticles are released to natural waters, heteroaggregation between nanoparticles and water compounds is expected to occur and play a key role in nanoparticle fate, transport and transformation. In this work, the heteroaggregation between CeO2 nanoparticles and Fe2O3 inorganic colloids, which represent the main inorganic fraction from Lake Geneva water, is studied. The heteroaggregation processes between CeO2, Fe2O3 and alginate in multiple water samples are investigated using zeta potential and z-average diameter measurements. The kinetics of heteroaggregation of individual components as well as mixtures of CeO2 nanoparticles and Fe2O3 colloids and alginate are studied using time resolved dynamic light scattering. The global attachment efficiency (\u03b1global) is calculated using data from kinetic experiments. \u03b1global for pristine CeO2 nanoparticles varied from 0.5 to 0.7 in lake and synthetic waters and is found around 1 for pristine Fe2O3 and mixture CeO2 and Fe2O3. Our findings demonstrate that heteroaggregation is highly dependent on environmental conditions and resulting electrostatic scenarios. No heteroaggregation at pH\u202f8 between CeO2, Fe2O3 and alginate is observed in ultrapure water, because of electrostatic repulsions between negatively charged compounds. In synthetic and lake waters, the situation is opposite. Indeed, specific adsorption of divalent cations and presence of salt are found to promote heteroaggregation via cation bridging and screening effects. The kinetic experiments indicate that aggregation rate of pristine Fe2O3 is higher (89\u202fnm/min in lake water) compared to pristine CeO2 nanoparticles (50\u202fnm/min) and on the same level as mixture of CeO2 and Fe2O3 (96\u202fnm/min). Low alginate concentration, 0.25\u202fmg/L, has no effect on heteroaggregation in mixture of CeO2 and Fe2O3 in lake and synthetic waters. On the other hand, in natural water, the presence of higher alginate concentration, 2\u202fmg/L, is found to reduce the heteroaggregation rate.", "keywords": ["info:eu-repo/classification/ddc/550", "13. Climate action", "Alginate", "ddc:550", "CeO2 nanoparticles", "Fe2O3", "Heteroaggregation", "Cation adsorption", "01 natural sciences", "6. Clean water", "Lake water", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.scitotenv.2018.08.176"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Science%20of%20The%20Total%20Environment", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.scitotenv.2018.08.176", "name": "item", "description": "10.1016/j.scitotenv.2018.08.176", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.scitotenv.2018.08.176"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-01-01T00:00:00Z"}}, {"id": "10.1016/j.scitotenv.2018.09.017", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-30T16:17:19Z", "type": "Journal Article", "created": "2018-09-04", "title": "Determination of nanoparticle heteroaggregation attachment efficiencies and rates in presence of natural organic matter monomers. Monte Carlo modelling", "description": "Understanding the transformation and transport of manufactured nanoparticles (NPs) in aquatic systems remains an important issue due to their potential hazard. Once released in aquatic systems, NPs will interact with natural compounds such as suspended inorganic particles and/or natural organic matter (NOM) and heteroaggregation will control their ultimate fate. Unfortunately, systematic experimental methods to study heteroaggregation are not straightforward and still scarce. In addition, the description of heteroaggregation rate constants and attachment efficiencies is still a matter of debate since no clear definition exists. In this work, an original cluster-cluster Monte Carlo model is developed to get an insight into heteroaggregation process descriptions. A two-component system composed of NPs and NOM fulvic acid monomers is investigated by considering several water models to cover a range of (relevant) conditions from fresh to marine waters. For that purpose, homo- and hetero- individual attachment efficiencies between NPs and NOM units are adjusted (NP-NP, NOM-NOM and NP-NOM). The influence of NP/NOM ratio, NOM-NOM homoaggregation versus heteroaggregation, and surface coating effects is studied systematically. From a quantitative point of view, aggregation rate constants as well as attachment efficiencies are calculated as a function of physical time so as to characterize the individual influence of each parameter and to allow future comparison with experimental data. Heteroaggregation processes and global attachment efficiencies corresponding to several mechanisms and depending on the evolution of heteroaggregate structures all along the simulations are defined. The calculation of attachment efficiency values is found dependent on NP/NOM concentration ratios via coating effects, by the initial set of elementary attachment efficiencies and influence of homoaggregation. Marine water represents a specific case of aggregation where all particle contacts are effective. On the other hand, in 'ultrapure' and 'fresh waters', a competition between homo- and heteroaggregation occurs depending on the initial attachment efficiencies therefore indicating that a subtle change in the NP surface properties as well as in the water chemistry have a significant impact on heteroaggregation processes.", "keywords": ["SDG 14 \u2013 Leben unter Wasser", "FATE", "0211 other engineering and technologies", "02 engineering and technology", "SILVER NANOPARTICLES", "01 natural sciences", "Nanoparticle", "ddc:550", "105906 Environmental geosciences", "SDG 14 - Life Below Water", "Monte Carlo simulation", "OXIDE NANOPARTICLES", "0105 earth and related environmental sciences", "ddc:333.7-333.9", "Natural organic matter", "NANOMATERIALS", "info:eu-repo/classification/ddc/333.7-333.9", "info:eu-repo/classification/ddc/550", "Surface coating", "ENGINEERED NANOPARTICLES", "Attachment efficiency", "Nanopartide", "TITANIUM-DIOXIDE NANOPARTICLES", "TRANSPORT", "AQUATIC ENVIRONMENT", "TIO2 NANOPARTICLES", "Natural Organic Matter", "13. Climate action", "Heteroaggregation", "105906 Umweltgeowissenschaften", "DIFFUSION-LIMITED AGGREGATION"]}, "links": [{"href": "https://doi.org/10.1016/j.scitotenv.2018.09.017"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Science%20of%20The%20Total%20Environment", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.scitotenv.2018.09.017", "name": "item", "description": "10.1016/j.scitotenv.2018.09.017", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.scitotenv.2018.09.017"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-02-01T00:00:00Z"}}, {"id": "10.1016/j.still.2004.02.012", "type": "Feature", "geometry": null, "properties": {"license": "Closed Access", "updated": "2026-05-30T16:17:38Z", "type": "Journal Article", "created": "2004-04-09", "title": "Effects Of Compost, Mycorrhiza, Manure And Fertilizer On Some Physical Properties Of A Chromoxerert Soil", "description": "Abstract Addition of organic materials of various origins to soil has been one of the most common rehabilitation practices to improve soil physical properties. Mycorrhiza has been known to play a significant role in forming stable soil aggregates. In this study, a 5-year field experiment was conducted to explore the role of mycorrhizal inoculation and organic fertilizers on the alteration of physical properties of a semi-arid Mediterranean soil (Entic Chromoxerert, Arik clay-loam soil). From 1995 to 1999, wheat ( Triticum aestivum L.), pepper ( Capsicum annuum L.), maize ( Zea mays L.) and wheat were sequentially planted with one of five fertilizers: (1) control, (2) inorganic (160\u201326\u201383\u00a0kg N\u2013P\u2013K\u00a0ha \u22121 ), (3) compost at 25\u00a0t\u00a0ha \u22121 , (4) farm manure at 25\u00a0t\u00a0ha \u22121 and (5) mycorrhiza-inoculated compost at 10\u00a0t\u00a0ha \u22121 . Soil physical properties were significantly affected by organic fertilizers. For soil depths of 0\u201315 and 15\u201330\u00a0cm, mean weight diameter (MWD) was highest under the manure treatment while total porosity and saturated hydraulic conductivity were highest under the compost treatment. For a soil depth of 0\u201315\u00a0cm, the compost and manure-treated plots significantly decreased soil bulk density and increased soil organic matter concentration compared with other treatments. Compost and manure treatments increased available water content (AWC) of soils by 86 and 56%, respectively. The effect of inorganic fertilizer treatment on most soil physical properties was insignificant ( P >0.05) compared with the control. Mycorrhizal inoculation+compost was more effective in improving soil physical properties than the inorganic treatment. Organic fertilizer sources were shown to have major positive effects on soil physical properties.", "keywords": ["2. Zero hunger", "Soil organic matter", "Mineral fertilization", "Soil physical properties", "Compost", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "6. Clean water", "Manure", "Soil aggregation", "0401 agriculture", " forestry", " and fisheries", "Mycorrhiza", "0105 earth and related environmental sciences"], "contacts": [{"organization": "Celik I., Ortas I., Kilic S.,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.still.2004.02.012"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20and%20Tillage%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.still.2004.02.012", "name": "item", "description": "10.1016/j.still.2004.02.012", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.still.2004.02.012"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2004-07-01T00:00:00Z"}}, {"id": "10.1016/j.still.2014.02.001", "type": "Feature", "geometry": null, "properties": {"license": "unspecified", "updated": "2026-05-30T16:17:47Z", "type": "Journal Article", "created": "2014-03-26", "title": "Soil Quality Indicators In A Rhodic Paleudult Under Long Term Tillage Systems", "description": "Many investigations have focused in defining soil quality indicator components. However, for understanding better the impact of soil tillage systems on soil quality, a broader approach is demanded, with simultaneous soil attributes evaluations, by using multivariate analysis. The objective of this experiment was to evaluate the long-term effect of two tillage systems on the soil C and N stocks in comparison to those of native grassland and to identify the most suitable soil attributes for characterizing soil quality. The experiment was established in 1988 at the Agronomic Experimental Station of the Federal University of Rio Grande do Sul, Southern Brazil. Treatments consisted of two tillage systems (no-tillage and conventional tillage) and a reference area under native grassland. Soil analysis was performed up to 20 cm. Soil organic matter, C and N, physical fractionation was performed and carbon management index calculated. Microbial biomass C and N was determined as well as soil aggregate stability. From soil aggregation, soil average diameters and mass were grouped, and classes determined to calculate mean weight diameter. After 18 years, conventionally tilled soil showed lower total C and N stocks in comparison to no-tilled soil, which did not differ from native grassland soil. Soil C stocks ranged from 44.3 to 34.1 Mg ha\u22121 for the native grassland and conventional tillage system and total nitrogen ranged from 5.2 to 4.1 Mg ha\u22121 for the native grassland and no-tillage system, in the 0\u201320 cm layer. Among the tested soil quality indicators, the microbial biomass-C, total and particulate C stocks, particulate C and N stocks, and mean weight diameter were the indexes that best indicated soil tillage system effects, and they are therefore recommended for future use in evaluating soil quality.", "keywords": ["2. Zero hunger", "Carbon management index", "Conventional tillage", "No tillage", "Soil aggregation", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "6. Clean water"]}, "links": [{"href": "https://doi.org/10.1016/j.still.2014.02.001"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20and%20Tillage%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.still.2014.02.001", "name": "item", "description": "10.1016/j.still.2014.02.001", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.still.2014.02.001"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2014-06-01T00:00:00Z"}}, {"id": "10.1016/j.still.2015.05.010", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-30T16:17:48Z", "type": "Journal Article", "created": "2015-06-03", "title": "Beneficial Effects Of Reduced Tillage And Green Manure On Soil Aggregation And Stabilization Of Organic Carbon In A Mediterranean Agroecosystem", "description": "Abstract Semiarid Mediterranean agroecosystems need the implementation of sustainable land management (SLM) practices in order to maintain acceptable levels of soil organic matter (SOM). The application of SLM practices helps to maintain soil structure and physical-chemical protection of soil organic carbon (SOC), hence improving soil carbon sequestration and mitigating CO 2 emissions to the atmosphere. In an organic, rain-fed almond ( Prunus dulcis Mill., var. Ferragnes) orchard under reduced tillage (RT), as the habitual management practice during the 14 years immediately preceding the experiment, we studied the effect of two agricultural management practices on soil aggregate distribution and SOC stabilization after four years of implementation. The implemented practices were (1) reduced tillage with a mix of Vicia sativa L. and Avena sativa L. as green manure (RTG) and (2) no-tillage (NT). Four aggregate size classes were differentiated by wet sieving (large and small macroaggregates, microaggregates, and the silt plus clay fraction), and the microaggregates occluded within small macroaggregates (SMm) were isolated. In addition, three organic C fractions were separated within the small macroaggregates and microaggregates, using a density fractionation method: free light fraction (free LF-C), intra-aggregate particulate OM (iPOM-C), and organic C associated with the mineral fraction (mineral-C). The results show that the combination of reduced tillage plus green manure (RTG) was the most-efficient SLM practice for SOC sequestration. The total SOC increased by about 14% in the surface layer (0\u20135\u00a0cm depth) when compared to RT. Furthermore, green manure counteracted the effect of tillage on soil aggregate rupture. The plant residue inputs from green manure and their incorporation into the soil by reduced tillage promoted the formation of new aggregates and activated the subsequent physical-chemical protection of OC. The latter mechanism occurred mainly in the fine iPOM-C occluded within microaggregates and mineral-C occluded within small macroaggregates fractions, which together contributed to an increase of up to 30% in the OC concentration in the bulk soil. No-tillage favored the OC accumulation in the mineral-C within the small macroaggregates and in the fine iPOM-C occluded within microaggregates in the surface layer, and in the mineral-C occluded within the small macroaggregates and microaggregates at 5\u201315\u00a0cm depth, but four years of cessation of tillage were not enough to significantly increase the total OC in the bulk soil.", "keywords": ["2. Zero hunger", "Carbon sequestration | Rain-fed almond orchard | Semiarid agroecosystems | Soil aggregation | Soil organic carbon fractionation | Sustainable land management", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "6. Clean water"]}, "links": [{"href": "https://doi.org/10.1016/j.still.2015.05.010"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20and%20Tillage%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.still.2015.05.010", "name": "item", "description": "10.1016/j.still.2015.05.010", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.still.2015.05.010"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2015-11-01T00:00:00Z"}}, {"id": "10.1016/j.still.2016.08.012", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-30T16:17:49Z", "type": "Journal Article", "created": "2016-08-23", "title": "Aggregate Size Distribution In A Biochar-Amended Tropical Ultisol Under Conventional Hand-Hoe Tillage", "description": "Biochar (or pyrogenic organic matter) is increasingly proposed as a soil amendment for improving fertility, carbon sequestration and reduction of greenhouse gas emissions. However, little is known about its effects on aggregation, an important indicator of soil quality and functioning. The aim of this study was to assess the effect of Eucalyptus wood biochar (B, pyrolyzed at 550\u00a0\u00b0C, at 0 or 2.5\u00a0t\u00a0ha-1), green manure (T, from Tithonia diversifolia at 0, 2.5 or 5.0\u00a0t\u00a0ha-1) and mineral nitrogen (U, urea, at 0, or 120\u00a0kg\u00a0N\u00a0ha-1) on soil respiration, aggregate size distribution and SOC in these aggregate size fractions in a 2-year field experiment on a low-fertility Ultisol in western Kenya under conventional hand-hoe tillage. Air-dry 2-mm sieved soils were divided into four fractions by wet sieving: Large Macro-aggregates (LM; >1000\u00a0\u03bcm); Small Macro-aggregates (SM, 250-1000\u00a0\u03bcm); Micro-aggregates (M, 250-53\u00a0\u03bcm) and Silt\u00a0+\u00a0Clay (S\u00a0+\u00a0C,\u2009<\u00a053\u00a0\u03bcm). We found that biochar alone did not affect a mean weight diameter (MWD) but combined application with either T. diversifolia (BT) or urea (BU) increased MWD by 34\u00a0\u00b1\u00a05.2\u00a0\u03bcm (8%) and 55\u00a0\u00b1\u00a05.4\u00a0\u03bcm (13%), respectively, compared to the control (P\u00a0=\u00a00.023; n\u00a0=\u00a036). The B\u00a0+\u00a0T\u00a0+\u00a0U combination increased the proportion of the LM and SM by 7.0\u00a0\u00b1\u00a00.8%, but reduced the S\u00a0+\u00a0C fraction by 5.2\u00a0\u00b1\u00a00.23%. SOC was 30%, 25% and 23% in S\u00a0+\u00a0C,\u00a0M and LM/SM fractions, and increased by 9.6\u00a0\u00b1\u00a01.0, 5.7\u00a0\u00b1\u00a00.8, 6.3\u00a0\u00b1\u00a01.1 and 4.2\u00a0\u00b1\u00a00.9\u00a0g\u00a0kg-1 for LM, SM, M and S\u00a0+\u00a0C, respectively. MWD was not related to either soil respiration or soil moisture but decreased with higher SOC (R2 \u00a0=\u00a00.37, P\u00a0=\u00a00.014, n\u00a0=\u00a026) and increased with greater biomass production (R2 \u00a0=\u00a00.11, P\u00a0=\u00a00.045, n\u00a0=\u00a033). Our data suggest that within the timeframe of the study, biochar is stored predominantly as free particulate OC in the silt and clay fraction and promoted a movement of native SOC from larger-size aggregates to the smaller-sized fraction in the short-term (2 years).", "keywords": ["2. Zero hunger", "Soil organic carbon", "Soil Science", "Soil respiration", "04 agricultural and veterinary sciences", "15. Life on land", "Hand-hoe tillage", "Article", "6. Clean water", "Biochar", "13. Climate action", "Soil aggregation", "Ultisol", "0401 agriculture", " forestry", " and fisheries", "Agronomy and Crop Science", "Earth-Surface Processes"]}, "links": [{"href": "https://doi.org/10.1016/j.still.2016.08.012"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20and%20Tillage%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.still.2016.08.012", "name": "item", "description": "10.1016/j.still.2016.08.012", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.still.2016.08.012"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2017-01-01T00:00:00Z"}}, {"id": "10.1039/c7en01119a", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-30T16:18:27Z", "type": "Journal Article", "created": "2018-02-07", "title": "Heteroaggregation of nanoplastic particles in the presence of inorganic colloids and natural organic matter", "description": "

The presence and accumulation of micro- and nanoplastics in marine and fresh waters represent a huge environmental concern.

", "keywords": ["ddc:333.7-333.9", "2. Zero hunger", "info:eu-repo/classification/ddc/333.7-333.9", "info:eu-repo/classification/ddc/550", "Fresh waters", "Alginate", "0211 other engineering and technologies", "02 engineering and technology", "01 natural sciences", "6. Clean water", "3. Good health", "ddc:550", "Fe2O3", "Heteroaggregation", "Nanoplastics", "Polystyrene", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://oceanrep.geomar.de/id/eprint/57826/1/Oriekhova.pdf"}, {"href": "https://oceanrep.geomar.de/id/eprint/57826/2/Suppl.pdf"}, {"href": "http://pubs.rsc.org/en/content/articlepdf/2018/EN/C7EN01119A"}, {"href": "https://doi.org/10.1039/c7en01119a"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Science%3A%20Nano", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1039/c7en01119a", "name": "item", "description": "10.1039/c7en01119a", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1039/c7en01119a"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2018-01-01T00:00:00Z"}}, {"id": "10.1111/1365-2664.13839", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-30T16:19:15Z", "type": "Journal Article", "created": "2021-01-19", "title": "Effects of microplastics and drought on soil ecosystem functions and multifunctionality", "description": "Abstract

Microplastics in soils have become an important threat for terrestrial systems as they may potentially alter the geochemical/biophysical soil environment and can interact with drought. As microplastics may affect soil water content, this could exacerbate the well\uffe2\uff80\uff90known negative effects of drought on ecosystem functionality. Thus, functions including litter decomposition, soil aggregation or those related with nutrient cycling can be altered. Despite this potential interaction, we know relatively little about how microplastics, under different soil water conditions, affect ecosystem functions and multifunctionality.

To address this gap, we performed an experiment using grassland plant communities growing in microcosms. Microplastic fibres (absent, present) and soil water conditions (well\uffe2\uff80\uff90watered, drought) were applied in a fully factorial design. At harvest, we measured soil ecosystem functions related to nutrient cycling (\uffce\uffb2\uffe2\uff80\uff90glucosaminidase, \uffce\uffb2\uffe2\uff80\uff90D\uffe2\uff80\uff90cellobiosidase, phosphatase, \uffce\uffb2\uffe2\uff80\uff90glucosidase enzymes), respiration, nutrient retention, pH, litter decomposition and soil aggregation (water stable aggregates). As terrestrial systems provide these functions simultaneously, we also assessed ecosystem multifunctionality, an index that encompasses the array of ecosystem functions measured here.

We found that the interaction between microplastic fibres and drought affected ecosystem functions and multifunctionality. Drought had negatively affected nutrient cycling by decreasing enzymatic activities by up to ~39%, while microplastics increased soil aggregation by ~18%, soil pH by ~4% and nutrient retention by up to ~70% by diminishing nutrient leaching. Microplastic fibres also impacted soil enzymes, respiration and ecosystem multifunctionality, but importantly, the direction of these effects depended on soil water status. That is, under well\uffe2\uff80\uff90watered conditions, these functions decreased with microplastic fibres by up to ~34% while under drought they had similar values irrespective of the microplastic presence, or tended to increase with microplastics. Litter decomposition had a contrary pattern increasing with microplastics by ~6% under well\uffe2\uff80\uff90watered conditions while decreasing to a similar percentage under drought.

Synthesis and applications. Single ecosystem functions can be positively or negatively affected by microplastics fibres depending on soil water status. However, our results suggest that microplastic fibres may cause negative effects on ecosystem soil multifunctionality of a similar magnitude as drought. Thus, strategies to counteract this new global change factor are necessary.

", "keywords": ["2. Zero hunger", "570", "ddc:630", "nutrient cycling", "litter decomposition", "500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie::570 Biowissenschaften; Biologie", "04 agricultural and veterinary sciences", "15. Life on land", "soil respiration", "01 natural sciences", "6. Clean water", "soil aggregation", "soil pH", "grasslands ecosystem", "13. Climate action", "nutrient leaching", "0401 agriculture", " forestry", " and fisheries", "ddc:570", "Institut f\u00fcr Biochemie und Biologie", "enzymatic activities", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://besjournals.onlinelibrary.wiley.com/doi/pdf/10.1111/1365-2664.13839"}, {"href": "https://doi.org/10.1111/1365-2664.13839"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20Applied%20Ecology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/1365-2664.13839", "name": "item", "description": "10.1111/1365-2664.13839", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/1365-2664.13839"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-02-10T00:00:00Z"}}, {"id": "10.1111/ejss.13152", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-30T16:19:20Z", "type": "Journal Article", "created": "2021-07-27", "title": "A holistic perspective on soil architecture is needed as a key to soil functions", "description": "Abstract

Soil functions, including climate regulation and the cycling of water and nutrients, are of central importance for a number of environmental issues of great societal concern. To understand and manage these functions, it is crucial to be able to quantify the structure of soils, now increasingly referred to as their \uffe2\uff80\uff9carchitecture,\uffe2\uff80\uff9d as it constraints the physical, chemical and biological processes in soils. This quantification was traditionally approached from two different angles, one focused on aggregates of the solid phase, and the other on the pore space. The recent development of sophisticated, non\uffe2\uff80\uff90disturbing imaging techniques has led to significant progress in the description of soil architecture, in terms of both the pore space and the spatial configuration of mineral and organic materials. We now have direct access to virtually all aspects of soil architecture. In the present article, we review how this affects the perception of soil architecture specifically when trying to describe the functions of soils. A key conclusion of our analysis is that soil architecture, in that context, imperatively needs to be explored in its natural state, with as little disturbance as possible. The same requirement applies to the key processes taking place in the hierarchical soil pore network, including those contributing to the emergence of a heterogeneous organo\uffe2\uff80\uff90mineral soil matrix by various mixing processes, such as bioturbation, diffusion, microbial metabolism and organo\uffe2\uff80\uff90mineral interactions. Artificially isolated aggregates are fundamentally inappropriate for deriving conclusions about the functioning of an intact soil. To fully account for soil functions, we argue that a holistic approach that centres on the pore space is mandatory while the dismantlement of soils into chunks may still be carried out to study the binding of soil solid components. In the future, significant progress is expected along this holistic direction, as new, advanced technologies become available.

Highlights

We highlight the crucial importance of the temporal dynamics of soil architecture for biological activity and carbon turnover.

We reconcile controversial concepts relative to how soil architecture is formed and reshaped with time.

Soil is demonstrated to be a heterogeneous porous matrix and not an assembly of aggregates.

Biological and physical mixing processes are key for the formation and dynamics of soil architecture.

", "keywords": ["2. Zero hunger", "570", "aggregation", "04 agricultural and veterinary sciences", "[SDV.SA.SDS]Life Sciences [q-bio]/Agricultural sciences/Soil study", "910", "soil functions", "15. Life on land", "630", "6. Clean water", "13. Climate action", "bioturbation", "soil mechanics", "0401 agriculture", " forestry", " and fisheries", "soil structure", "[SDV.SA.SDS] Life Sciences [q-bio]/Agricultural sciences/Soil study", "organic matter"]}, "links": [{"href": "https://onlinelibrary.wiley.com/doi/pdf/10.1111/ejss.13152"}, {"href": "https://doi.org/10.1111/ejss.13152"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/European%20Journal%20of%20Soil%20Science", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/ejss.13152", "name": "item", "description": "10.1111/ejss.13152", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/ejss.13152"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-08-13T00:00:00Z"}}, {"id": "10.1111/gcbb.12128", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-05-30T16:19:27Z", "type": "Journal Article", "created": "2013-10-31", "title": "Soil And Crop Response To Stover Removal From Rainfed And Irrigated Corn", "description": "Abstract

Excessive corn (Zea mays L.) stover removal for biofuel and other uses may adversely impact soil and crop production. We assessed the effects of stover removal at 0, 25, 50, 75, and 100% from continuous corn on water erosion, corn yield, and related soil properties during a 3\uffe2\uff80\uff90year study under irrigated and no\uffe2\uff80\uff90tillage management practice on a Ulysses silt loam at Colby, irrigated and strip till management practice on a Hugoton loam at Hugoton, and rainfed and no\uffe2\uff80\uff90tillage management practice on a Woodson silt loam at Ottawa in Kansas, USA. The slope of each soil was <1%. One year after removal, complete (100%) stover removal resulted in increased losses of sediment by 0.36\uffe2\uff80\uff930.47\uffc2\uffa0Mg\uffc2\uffa0ha\uffe2\uff88\uff921 at the irrigated sites, but, at the rainfed site, removal at rates as low as 50% resulted in increased sediment loss by 0.30\uffc2\uffa0Mg\uffc2\uffa0ha\uffe2\uff88\uff921 and sediment\uffe2\uff80\uff90associated carbon (C) by 0.29\uffc2\uffa0kg\uffc2\uffa0ha\uffe2\uff88\uff921. Complete stover removal reduced wet aggregate stability of the soil at the irrigated sites in the first year after removal, but, at the rainfed site, wet aggregate stability was reduced in all years. Stover removal at rates \uffe2\uff89\uffa5 50% resulted in reduced soil water content, increased soil temperature in summer by 3.5\uffe2\uff80\uff936.8\uffc2\uffa0\uffc2\uffb0C, and reduced temperature in winter by about 0.5\uffc2\uffa0\uffc2\uffb0C. Soil C pool tended to decrease and crop yields tended to increase with an increase in stover removal, but 3\uffc2\uffa0years after removal, differences were not significant. Overall, stover removal at rates \uffe2\uff89\uffa550% may enhance grain yield but may increase risks of water erosion and negatively affect soil water and temperature regimes in this region.

", "keywords": ["2. Zero hunger", "Plant Sciences", "Botany", "Life Sciences", "Plant Biology", "Agriculture", "04 agricultural and veterinary sciences", "Horticulture", "15. Life on land", "7. Clean energy", "irrigation", "333", "630", "6. Clean water", "soil aggregation", "Agronomy and Crop Sciences", "13. Climate action", "Other Plant Sciences", "0401 agriculture", " forestry", " and fisheries", "stover removal", "water erosion", "soil carbon", "Agricultural Science"]}, "links": [{"href": "https://doi.org/10.1111/gcbb.12128"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/GCB%20Bioenergy", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/gcbb.12128", "name": "item", "description": "10.1111/gcbb.12128", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/gcbb.12128"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-10-31T00:00:00Z"}}, {"id": "10.1111/j.1475-2743.2003.tb00297.x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-30T16:19:42Z", "type": "Journal Article", "created": "2010-08-05", "title": "Effects Of Organic Versus Conventional Arable Farming On Soil Structure And Organic Matter Dynamics In A Marine Loam In The Netherlands", "description": "

Abstract. We compared the effects of conventional and organic arable farming on soil organic matter (SOM) content, soil structure, aggregate stability and C and N mineralization, which are considered important factors in defining sustainable land management. Within one soil series, three different farming systems were selected, including a conventional and an organic arable system and permanent pasture without tillage. The old pasture represents optimal conditions in terms of soil structure and organic matter inputs and is characterized by high earthworm activity. More than 70 years of different management has caused significant differences in soil properties. SOM content, mineralization, earthworm activity and water\uffe2\uff80\uff90stable aggregation decreased as a result of tillage and arable cropping when compared with pasture, but were significantly greater under organic farming than under conventional farming. Total SOM contents between 0 and 20 cm depth amounted to 15, 24 and 46 g kg\uffe2\uff88\uff921 for the conventional arable, organic arable and permanent pasture fields, respectively. Although less sensitive to slaking than the conventionally managed field, the soil under organic farming was susceptible to compaction when high pressures were exerted on the soil under wet conditions. The beneficial effects of organic farming are generally associated with soil biochemical properties, but soil physical aspects should also be considered. Depending on soil type and climate, organic farmers need to be careful not to destroy the soil structure, so that they can enjoy maximum advantage from their organic farming systems.

", "keywords": ["2. Zero hunger", "aggregation", "netherlands", "04 agricultural and veterinary sciences", "15. Life on land", "arable farming", "fertilizer", "loam soils", "populations", "6. Clean water", "land", "cultivation", "13. Climate action", "organic farming", "manure", "soil organic matter", "0401 agriculture", " forestry", " and fisheries", "compaction", "soil structure", "earthworm activity", "silt loam", "management"]}, "links": [{"href": "https://doi.org/10.1111/j.1475-2743.2003.tb00297.x"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20Use%20and%20Management", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/j.1475-2743.2003.tb00297.x", "name": "item", "description": "10.1111/j.1475-2743.2003.tb00297.x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/j.1475-2743.2003.tb00297.x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2003-06-01T00:00:00Z"}}, {"id": "10.1111/j.1475-2743.2010.00298.x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-30T16:19:43Z", "type": "Journal Article", "created": "2010-09-14", "title": "Tillage Effects On Soil Aggregation And Soil Organic Carbon Profile Distribution Under Mediterranean Semi-Arid Conditions", "description": "Open Access30 Pags., 6 Tabls., 3 Figs. The definitive version is available at: http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1475-2743", "keywords": ["soil organic carbon", "2. Zero hunger", "soil aggregation", "Soil organic carbon", "13. Climate action", "Soil aggregation", "tillage", "Mediterranean conditions", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "Tillage"]}, "links": [{"href": "https://doi.org/10.1111/j.1475-2743.2010.00298.x"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20Use%20and%20Management", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/j.1475-2743.2010.00298.x", "name": "item", "description": "10.1111/j.1475-2743.2010.00298.x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/j.1475-2743.2010.00298.x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2010-09-14T00:00:00Z"}}, {"id": "10.1117/12.2650251", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-30T16:19:53Z", "type": "Journal Article", "created": "2023-01-26", "title": "Salt-induced aggregation of gold nanoparticles for sensitive SERS-based detection of nanoplastics in water", "description": "The presence of micro and nano plastics in the environment and their impact on the various life forms within it are of principle concern around the globe. However, whilst a considerable amount of work has been done on the detection of microplastics, many challenges remain in the development of analytical techniques for nanoplastics due to their inherent ultra-small size and ubiquitous shapes. Here, a simple technique is reported based on surface enhanced Raman spectroscopy (SERS) and salt (NaCl) induced aggregation of gold nanoparticles that has been used to detect 100 nm diameter polystyrene (PS) beads. The gold nanoparticles (AuNPs) were synthesized and stabilized by negatively charged sodium citrate. When the PS beads present in a water sample were introduced into the solution of colloidal AuNPs, they interact to each other via hydrophobic interactions and other weak forces (i.e. hydrogen, ionic, and Van der waals forces). Upon an addition of NaCl, the negatively charged ions around the AuNPs are shielded and disturbed, resulting in their aggregation around the PS beads. As a consequence, strong SERS signal enhancement produced by the aggregated AuNPs was observed, and also demonstrated in numerical modelling. Concentrations of 100 nm PS beads as low as 1 part per million (ppm) were measured, and to the best of the author's knowledge, this is the lowest concentration detected for nanoplastics of that size or smaller by such a simple technique that has been reported.", "keywords": ["/dk/atira/pure/subjectarea/asjc/1700/1706", "SERS", "/dk/atira/pure/subjectarea/asjc/2500/2504", "/dk/atira/pure/subjectarea/asjc/3100/3104", "/dk/atira/pure/subjectarea/asjc/2200/2208", "aggregation", "detection", "/dk/atira/pure/subjectarea/asjc/2600/2604", "name=Applied Mathematics", "name=Electrical and Electronic Engineering", "name=Computer Science Applications", "540", "01 natural sciences", "nanoplastics", "620", "name=Electronic", "gold nanoparticles", "0103 physical sciences", "salt", "name=Condensed Matter Physics", "Optical and Magnetic Materials"]}, "links": [{"href": "https://doi.org/10.1117/12.2650251"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Quantum%20Sensing%20and%20Nano%20Electronics%20and%20Photonics%20XIX", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1117/12.2650251", "name": "item", "description": "10.1117/12.2650251", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1117/12.2650251"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2023-03-15T00:00:00Z"}}, {"id": "10.3390/s21217406", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-30T16:22:01Z", "type": "Journal Article", "created": "2021-11-09", "title": "A Calibration/Disaggregation Coupling Scheme for Retrieving Soil Moisture at High Spatio-Temporal Resolution: Synergy between SMAP Passive Microwave, MODIS/Landsat Optical/Thermal and Sentinel-1 Radar Data", "description": "

Soil moisture (SM) data are required at high spatio-temporal resolution\uffe2\uff80\uff94typically the crop field scale every 3\uffe2\uff80\uff936 days\uffe2\uff80\uff94for agricultural and hydrological purposes. To provide such high-resolution SM data, many remote sensing methods have been developed from passive microwave, active microwave and thermal data. Despite the pros and cons of each technique in terms of spatio-temporal resolution and their sensitivity to perturbing factors such as vegetation cover, soil roughness and meteorological conditions, there is currently no synergistic approach that takes advantage of all relevant (passive, active microwave and thermal) remote sensing data. In this context, the objective of the paper is to develop a new algorithm that combines SMAP L-band passive microwave, MODIS/Landsat optical/thermal and Sentinel-1 C-band radar data to provide SM data at the field scale at the observation frequency of Sentinel-1. In practice, it is a three-step procedure in which: (1) the 36 km resolution SMAP SM data are disaggregated at 100 m resolution using MODIS/Landsat optical/thermal data on clear sky days, (2) the 100 m resolution disaggregated SM data set is used to calibrate a radar-based SM retrieval model and (3) the so-calibrated radar model is run at field scale on each Sentinel-1 overpass. The calibration approach also uses a vegetation descriptor as ancillary data that is derived either from optical (Sentinel-2) or radar (Sentinel-1) data. Two radar models (an empirical linear regression model and a non-linear semi-empirical formulation derived from the water cloud model) are tested using three vegetation descriptors (NDVI, polarization ratio (PR) and radar coherence (CO)) separately. Both models are applied over three experimental irrigated and rainfed wheat crop sites in central Morocco. The field-scale temporal correlation between predicted and in situ SM is in the range of 0.66\uffe2\uff80\uff930.81 depending on the retrieval configuration. Based on this data set, the linear radar model using PR as a vegetation descriptor offers a relatively good compromise between precision and robustness all throughout the agricultural season with only three parameters to set. The proposed synergistical approach combining multi-resolution/multi-sensor SM-relevant data offers the advantage of not requiring in situ measurements for calibration.

", "keywords": ["550", "Chemical technology", "0211 other engineering and technologies", "synergy", "SMAP", "TP1-1185", "04 agricultural and veterinary sciences", "02 engineering and technology", "15. Life on land", "630", "[SDU.ENVI] Sciences of the Universe [physics]/Continental interfaces", " environment", "Article", "DISPATCH", "disaggregation", "[SDU.STU.HY] Sciences of the Universe [physics]/Earth Sciences/Hydrology", "Sentinel-1", "0401 agriculture", " forestry", " and fisheries", "[SDU.STU.HY]Sciences of the Universe [physics]/Earth Sciences/Hydrology", "[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces", "soil moisture", "environment", "Landsat"]}, "links": [{"href": "http://www.mdpi.com/1424-8220/21/21/7406/pdf"}, {"href": "https://www.mdpi.com/1424-8220/21/21/7406/pdf"}, {"href": "https://doi.org/10.3390/s21217406"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Sensors", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.3390/s21217406", "name": "item", "description": "10.3390/s21217406", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.3390/s21217406"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-11-08T00:00:00Z"}}, {"id": "10.1186/s43591-021-00007-x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-30T16:20:08Z", "type": "Journal Article", "created": "2021-05-03", "title": "Microplastics have shape- and polymer-dependent effects on soil aggregation and organic matter loss \u2013 An experimental and meta-analytical approach", "description": "Abstract

Microplastics are a diverse and ubiquitous contaminant, a global change driver with potential to alter ecosystem properties and processes. Microplastic-induced effects in soils are manifold as microplastics differ in a variety of properties among which the shape is of special interest. Our knowledge is limited regarding the impact of various microplastic shapes on soil processes. Therefore, we conducted this two-part research comprising a meta-analysis on published literature and a lab experiment focusing on microplastic shapes- and polymer-induced effects on soil aggregation and organic matter decomposition. We here focus on fibers, films, foams and particles as microplastic shapes.

In the meta-analysis, we found a strong research focus on fibrous and particulate microplastic materials, with films and foams neglected.

Our experiment showed that microplastic shapes are important modulators of responses in soil aggregation and organic matter decomposition. Fibers, irrespective of their chemistry, negatively affected the formation of aggregates. However, for other shapes like foams and particles, the polymer identity is an important factor co-modulating the soil responses.

Further research is needed to generate a data-driven foundation to permit a better mechanistic understanding of the importance and consequences of microplastics added to soils.

", "keywords": ["Experiment", "Meta-analysis", "13. Climate action", "Soil aggregation", "Microplastic", "500", "Shape", "500 Naturwissenschaften und Mathematik::500 Naturwissenschaften::500 Naturwissenschaften und Mathematik", "15. Life on land", "Organic matter loss", "01 natural sciences", "0105 earth and related environmental sciences"], "contacts": [{"organization": "Anika Lehmann, Eva F. Leifheit, Maurice Gerdawischke, Matthias C. Rillig,", "roles": ["creator"]}]}, "links": [{"href": "https://link.springer.com/content/pdf/10.1186/s43591-021-00007-x.pdf"}, {"href": "https://doi.org/10.1186/s43591-021-00007-x"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Microplastics%20and%20Nanoplastics", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1186/s43591-021-00007-x", "name": "item", "description": "10.1186/s43591-021-00007-x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1186/s43591-021-00007-x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-05-01T00:00:00Z"}}, {"id": "10.1590/s0100-06832013000600009", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-05-30T16:20:33Z", "type": "Journal Article", "created": "2014-03-26", "title": "Physical Quality Of An Oxisol After Different Periods Of Management Systems", "description": "

Management systems may lead to a loss of soil physical quality as a result of removal of the plant cover and excessive agricultural mechanization. The hypothesis of this study was that the soil aggregate stability, bulk density, macro- and microporosity, and the S index and saturated hydraulic conductivity may be used as indicators of the soil physical quality. The aim was to study the effects of different periods and managements on the physical attributes of a medium-textured Red Oxisol under soybean and corn for two growing seasons, and determine which layers are most susceptible to variations. A completely randomized experimental design was used with split plots (five treatments and four layers), with four replications. The treatments in 2008/09 consisted of: five years of no-tillage (NTS5), seven years of no-tillage (NTS7), nine years of no-tillage (NTS9), conventional tillage (CTS) and an adjacent area of native forest (NF). The treatments were extended for another year, identified in 2009/10 as: NTS6, NTS8, NTS10, CTS and NF. The soil layers 0-0.05, 0.05-0.10, 0.10-0.20 and 0.20-0.30 m were sampled. The highest S index values were observed in the treatment CTS in the 0-0.05 m layer (0.106) and the 0.05-0.10 m layer (0.099) in 2008/09, and in the 0-0.05 m layer (0.066) in 2009/10. This fact may be associated with soil turnover, resulting in high macroporosity in this treatment. In contrast, in the NTS, limiting macroporosity values were observed in some layers (below 0.10 m\uffc2\uffb3 m-3). Highest aggregate stability as well as the highest saturated hydraulic conductivity (K\uffce\uffb8) values were observed in NF in relation to the other treatments. In 2009/10, the K\uffce\uffb8 in NF differed only from NTS10. This study showed that the use of the S index alone cannot be recommended as an absolute indicator of the soil physical quality, even at values greater than 0.035.

", "keywords": ["2. Zero hunger", "Index S", "agrega\u00e7\u00e3o", "Agriculture (General)", "saturated hydraulic conductivity", "aggregation", "04 agricultural and veterinary sciences", "\u00edndice S", "15. Life on land", "\u00cdndice S", "6. Clean water", "S1-972", "S index", "0401 agriculture", " forestry", " and fisheries", "condutividade hidra\u00falica saturada"]}, "links": [{"href": "https://doi.org/10.1590/s0100-06832013000600009"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Revista%20Brasileira%20de%20Ci%C3%AAncia%20do%20Solo", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1590/s0100-06832013000600009", "name": "item", "description": "10.1590/s0100-06832013000600009", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1590/s0100-06832013000600009"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-12-01T00:00:00Z"}}, {"id": "10.1590/s0100-06832009000400003", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-05-30T16:20:32Z", "type": "Journal Article", "created": "2009-10-29", "title": "Aggregate Stability As Affected By Short And Long-Term Tillage Systems And Nutrient Sources Of A Hapludox In Southern Brazil", "description": "

The ability of a soil to keep its structure under the erosive action of water is usually high in natural conditions and decreases under frequent and intensive cultivation. The effect of five tillage systems (NT = no-till; CP = chisel plowing and one secondary disking; CT = primary and two secondary distings; CTb = CT with crop residue burning; and CTr = CT with removal of crop residues from the field), combined with five nutrient sources (C = control, no nutrient application; MF = mineral fertilizers according to technical recommendations for each crop; PL = 5 Mg ha-1 y-1 fresh matter of poultry litter; CM = 60 m\uffc2\uffb3 ha-1 y-1 slurry cattle manure; and SM = 40 m\uffc2\uffb3 ha-1 y-1 slurry swine manure) on wet-aggregate stability was determined after nine years (four sampled soil layers) and on five sampling dates in the 10th year (two sampled soil layers) of the experiment. The size distribution of the air-dried aggregates was strongly affected by soil bulk density, and greater values of geometric mean diameter (GMD AD) found in some soil tillage or layer may be partly due to the higher compaction degree. After nine years, the GMD AD on the surface was greater in NT and CP compared to conventional tillage systems (CT, CTb and CTr), due to the higher organic matter content, as well as less soil mobilization. Aggregate stability in water, on the other hand, was affected by the low variation in previous gravimetric moisture of aggregates, which contributed to a high coefficient of variation of this attribute. The geometric mean diameter of water-stable aggregates (GMD WS) was highest in the 0.00-0.05 m layer in the NT system, in the layers 0.05-0.10 and 0.12-0.17 m in the CT, and values were intermediate in CP. The stability index (SI) in the surface layers was greater in treatments where crop residues were kept in the field (NT, CP and CT), which is associated with soil organic matter content. No differences were found in the layer 0.27-0.32 m. The effect of nutrient sources on GMD AD and GMD WS was small and did not affect SI.

", "keywords": ["preparo do solo", "agrega\u00e7\u00e3o", "sampling time", "soil tillage", "manure", "estercos", "aggregation", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "soil structure", "tempo de coleta", "estrutura do solo"]}, "links": [{"href": "https://doi.org/10.1590/s0100-06832009000400003"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Revista%20Brasileira%20de%20Ci%C3%AAncia%20do%20Solo", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1590/s0100-06832009000400003", "name": "item", "description": "10.1590/s0100-06832009000400003", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1590/s0100-06832009000400003"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2009-08-01T00:00:00Z"}}, {"id": "10.1590/s0100-06832012000600021", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-30T16:20:33Z", "type": "Journal Article", "created": "2013-02-02", "title": "Soil Aggregation Under Different Management Systems", "description": "

Considering that the soil aggregation reflects the interaction of chemical, physical and biological soil factors, the aim of this study was evaluate alterations in aggregation, in an Oxisol under no-tillage (NT) and conventional tillage (CT), since over 20 years, using as reference a native forest soil in natural state. After analysis of the soil profile (cultural profile) in areas under forest management, samples were collected from the layers 0-5, 5-10, 10-20 and 20-40 cm, with six repetitions. These samples were analyzed for the aggregate stability index (ASI), mean weighted diameter (MWD), mean geometric diameter (MGD) in the classes > 8, 8-4, 4-2, 2-1, 1-0.5, 0.5-0.25, and < 0.25 mm, and for physical properties (soil texture, water dispersible clay (WDC), flocculation index (FI) and bulk density (Bd)) and chemical properties (total organic carbon - COT, total nitrogen - N, exchangeable calcium - Ca2+, and pH). The results indicated that more intense soil preparation (M < NT < PC) resulted in a decrease in soil stability, confirmed by all stability indicators analyzed: MWD, MGD, ASI, aggregate class distribution, WDC and FI, indicating the validity of these indicators in aggregation analyses of the studied soil.

", "keywords": ["570", "aggregate size classes", "carbono org\u00e2nico total", "Agriculture (General)", "\u00edndices de agrega\u00e7\u00e3o", "classes de agregados", "aggregation indices", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "total organic carbon", "630", "S1-972"]}, "links": [{"href": "https://doi.org/10.1590/s0100-06832012000600021"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Revista%20Brasileira%20de%20Ci%C3%AAncia%20do%20Solo", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1590/s0100-06832012000600021", "name": "item", "description": "10.1590/s0100-06832012000600021", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1590/s0100-06832012000600021"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2012-12-01T00:00:00Z"}}, {"id": "10.21203/rs.3.rs-5128244/v2", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-30T16:20:51Z", "type": "Journal Article", "created": "2025-07-14", "title": "Spatiotemporal prediction of soil organic carbon density in Europe (2000\u20132022) using earth observation and machine learning", "description": "

This article describes a comprehensive framework for soil organic carbon density (SOCD, kg/m3) modeling and mapping, based on spatiotemporal random forest (RF) and quantile regression forests (QRF). A total of 45,616 SOCD observations and various Earth observation (EO) feature layers were used to produce 30 m SOCD maps for the EU at four-year intervals (2000\uffe2\uff80\uff932022) and four soil depth intervals (0\uffe2\uff80\uff9320 cm, 20\uffe2\uff80\uff9350 cm, 50\uffe2\uff80\uff93100 cm, and 100\uffe2\uff80\uff93200 cm). Per-pixel 95% probability prediction intervals (PIs) and extrapolation risk probabilities are also provided. Model evaluation indicates good overall accuracy (R2 = 0.63 and CCC = 0.76 for hold-out independent tests). Prediction accuracy varies by land cover, depth interval and year of prediction with the worst accuracy for shrubland and deeper soils 100\uffe2\uff80\uff93200 cm. The PI validation confirmed effective uncertainty estimation, though with reduced accuracy for higher SOCD values. Shapley analysis identified soil depth as the most influential feature, followed by vegetation, long-term bioclimate, and topographic features. While pixel-level uncertainty is substantial, spatial aggregation reduces uncertainty by approximately 66%. Detecting SOCD changes remains challenging but offers a baseline for future improvements. Maps, based primarily on topsoil data from cropland, grassland, and woodland, are best suited for applications related to these land covers and depths. We recommend that users interpret the maps in conjunction with local knowledge and consider the accompanying uncertainty and extrapolation risk layers. All data and code are available under an open license at https://doi.org/10.5281/zenodo.13754343 and https://github.com/AI4SoilHealth/SoilHealthDataCube/.

Estimates of turbulent fluxes (i.e., sensible and latent heat fluxes H and LE) over heterogeneous surfaces is not an easy task. The heterogeneity caused by the contrast in vegetation, hydric and soil conditions can generate a large spatial variability in terms of surface\u2013atmosphere interactions. This study considered the issue of using a thermal-based two-source energy model (TSEB) driven by MODIS (Moderate resolution Imaging Spectroradiometer) and MSG (Meteosat Second Generation) observations in conjunction with an aggregation scheme to derive area-averaged H and LE over a heterogeneous watershed in Niamey, Niger (Wankama catchment). Data collected in the context of the African Monsoon Multidisciplinary Analysis (AMMA) program, including a scintillometry campaign, were used to test the proposed approach. The model predictions of area-averaged turbulent fluxes were compared to data acquired by a Large Aperture Scintillometer (LAS) set up over a transect about 3.2 km-long and spanning three vegetation types (millet, fallow and degraded shrubs). First, H and LE fluxes were estimated at the MSG-SEVIRI grid scale by neglecting explicitly the subpixel heterogeneity. Moreover, the impact of upscaling the model\u2019s inputs was investigated using in-situ input data and three aggregation schemes of increasing complexity based on MODIS products: a simple averaging of inputs at the MODIS resolution scale, another simple averaging scheme that considers scintillometer footprint extent, and the weighted average of inputs based on the footprint weighting function. The H and LE simulated using the footprint weighted method were more accurate than for the two other aggregation rules despite the heterogeneity of the landscape. The statistical values are: correlation coefficient (R) = 0.71, root mean square error (RMSE) = 63 W/m2 and mean bias error (MBE) = \u221223 W/m2 for H and an R = 0.82, RMSE = 88 W/m2 and MBE = 45 W/m2 for LE. This study opens perspectives for the monitoring of convective and evaporative fluxes over heterogeneous landscape based on medium resolution satellite products.

", "keywords": ["550", "Science", "0207 environmental engineering", "02 engineering and technology", "551", "7. Clean energy", "01 natural sciences", "TSEB model", "aggregation schemes", "scintillometry", "non-uniform and heterogeneous surfaces", "11. Sustainability", "heterogeneous surfaces", "0105 earth and related environmental sciences", "Q", "SEVIRI", "15. Life on land", "[SDU.ENVI] Sciences of the Universe [physics]/Continental interfaces", " environment", "6. Clean water", "3. Good health", "non-uniform and", "MODIS", "13. Climate action", "[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces", "regional surfaces fluxes", "environment"]}, "links": [{"href": "http://www.mdpi.com/2072-4292/10/6/974/pdf"}, {"href": "https://doi.org/10.3390/rs10060974"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Remote%20Sensing", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.3390/rs10060974", "name": "item", "description": "10.3390/rs10060974", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.3390/rs10060974"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2018-06-19T00:00:00Z"}}, {"id": "10.2136/sssaj2008.0333", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-30T16:21:12Z", "type": "Journal Article", "created": "2009-07-18", "description": "

In semiarid agroecosystems of the Ebro valley (NE Spain) soils are characterized by low soil organic matter (SOM) and a weak structure. In this study we investigated the individual and combined effect of tillage system (no\uffe2\uff80\uff90tillage, NT; reduced tillage, RT; conventional tillage, CT) and cropping system (barley\uffe2\uff80\uff93fallow rotation at the Pe\uffc3\uffb1aflor site, PN\uffe2\uff80\uff90BF and continuous barley at the Pe\uffc3\uffb1aflor site, PN\uffe2\uff80\uff90BB) on soil organic carbon (SOC) storage as well as the physical protection of SOM fractions by soil aggregates in three long\uffe2\uff80\uff90term experimental sites. In both cropping systems, total SOC content was more than 30% higher in NT compared with CT in the 0\uffe2\uff80\uff90 to 5\uffe2\uff80\uff90cm depth. The suppression of fallowing in the PN\uffe2\uff80\uff90BB cropping system led to a greater SOC stabilization only in NT. In all the three sites, greater proportion of water\uffe2\uff80\uff90stable macroaggregates (>250 \uffce\uffbcm) was found under NT than under CT in the 0\uffe2\uff80\uff90 to 5\uffe2\uff80\uff90cm depth. Macroaggregate organic C concentration (250\uffe2\uff80\uff932000 \uffce\uffbcm) was greater in NT compared with CT in the BB cropping system, but did not differ with tillage treatment in the PN\uffe2\uff80\uff90BF rotation. Greater proportion of microaggregates within macroaggregates in NT compared with CT was only found in the Agramunt site (AG). However, greater C stabilized inside these microaggregates was observed in AG, Selvanera site (SV), and PN\uffe2\uff80\uff90BB in the 0\uffe2\uff80\uff90 to 5\uffe2\uff80\uff90cm depth. The results of this study demonstrate that in the semiarid Mediterranean agroecosystems of the Ebro valley, the adoption of NT together with the suppression of long\uffe2\uff80\uff90fallowing period can significantly increase the amount of SOC stabilized in the soil surface and improve soil structure and aggregation.

", "keywords": ["2. Zero hunger", "Soil management", "Soil organic matter", "Conservation agriculture", "No-till", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "Semiarid zones", "Soil", "Agricultural ecosystems", "Soil aggregation", "0401 agriculture", " forestry", " and fisheries", "Field Scale", "Conservation tillage", "Soil organic carbon (soc)", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.2136/sssaj2008.0333"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20Science%20Society%20of%20America%20Journal", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.2136/sssaj2008.0333", "name": "item", "description": "10.2136/sssaj2008.0333", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.2136/sssaj2008.0333"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2009-09-01T00:00:00Z"}}, {"id": "10.3389/fmicb.2019.02904", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-30T16:21:38Z", "type": "Journal Article", "created": "2020-01-09", "title": "Fungal Traits Important for Soil Aggregation", "description": "Soil structure, the complex arrangement of soil into aggregates and pore spaces, is a key feature of soils and soil biota. Among them, filamentous saprobic fungi have well-documented effects on soil aggregation. However, it is unclear what properties, or traits, determine the overall positive effect of fungi on soil aggregation. To achieve progress, it would be helpful to systematically investigate a broad suite of fungal species for their trait expression and the relation of these traits to soil aggregation. Here, we apply a trait-based approach to a set of 15 traits measured under standardized conditions on 31 fungal strains including Ascomycota, Basidiomycota, and Mucoromycota, all isolated from the same soil. We find large differences among these fungi in their ability to aggregate soil, including neutral to positive effects, and we document large differences in trait expression among strains. We identify biomass density, i.e., the density with which a mycelium grows (positive effects), leucine aminopeptidase activity (negative effects) and phylogeny as important factors explaining differences in soil aggregate formation (SAF) among fungal strains; importantly, growth rate was not among the important traits. Our results point to a typical suite of traits characterizing fungi that are good soil aggregators, and our findings illustrate the power of employing a trait-based approach to unravel biological mechanisms underpinning soil aggregation. Such an approach could now be extended also to other soil biota groups. In an applied context of restoration and agriculture, such trait information can inform management, for example to prioritize practices that favor the expression of more desirable fungal traits.", "keywords": ["saprobic fungi", "0301 basic medicine", "2. Zero hunger", "ddc:500", "570", "0303 health sciences", "Saprobic fungi", "500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie::570 Biowissenschaften; Biologie", "15. Life on land", "Traits", "leucine amino peptidases", "Microbiology", "QR1-502", "soil aggregation", "03 medical and health sciences", "traits", "biomass density", "Soil aggregation", "Biomass density", "Leucine amino peptidases", "Institut f\u00fcr Biochemie und Biologie", "random forest", "Random forest"]}, "links": [{"href": "https://doi.org/10.3389/fmicb.2019.02904"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Frontiers%20in%20Microbiology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.3389/fmicb.2019.02904", "name": "item", "description": "10.3389/fmicb.2019.02904", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.3389/fmicb.2019.02904"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-01-09T00:00:00Z"}}, {"id": "10.3389/fmicb.2019.02018", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-05-30T16:21:38Z", "type": "Journal Article", "created": "2019-09-06", "title": "Increasing Temperature and Microplastic Fibers Jointly Influence Soil Aggregation by Saprobic Fungi", "description": "Microplastic pollution and increasing temperature have potential to influence soil quality; yet little is known about their effects on soil aggregation, a key determinant of soil quality. Given the importance of fungi for soil aggregation, we investigated the impacts of increasing temperature and microplastic fibers on aggregation by carrying out a soil incubation experiment in which we inoculated soil individually with 5 specific strains of soil saprobic fungi. Our treatments were temperature (ambient temperature of 25\u00b0C or temperature increased by 3\u00b0C, abruptly versus gradually) and microplastic fibers (control and 0.4% w/w). We evaluated the percentage of water stable aggregates (WSA) and hydrolysis of fluorescein diacetate (FDA) as an indicator of fungal biomass. Microplastic fiber addition was the main factor influencing the WSA, decreasing the percentage of WSA except in soil incubated with strain RLCS 01, and mitigated the effects of temperature or even caused more pronounced decrease in WSA under increasing temperature. We also observed clear differences between temperature change patterns. Our study shows that the interactive effects of warming and microplastic fibers are important to consider when evaluating effects of global change on soil aggregation and potentially other soil processes.", "keywords": ["2. Zero hunger", "abrupt", "temperature", "579", "04 agricultural and veterinary sciences", "gradual", "15. Life on land", "Microbiology", "QR1-502", "6. Clean water", "soil aggregation", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "fungi", "microplastic"]}, "links": [{"href": "https://doi.org/10.3389/fmicb.2019.02018"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Frontiers%20in%20Microbiology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.3389/fmicb.2019.02018", "name": "item", "description": "10.3389/fmicb.2019.02018", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.3389/fmicb.2019.02018"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-09-06T00:00:00Z"}}, {"id": "10.3390/rs9111155", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-30T16:22:00Z", "type": "Journal Article", "created": "2017-11-10", "title": "Disaggregation of SMOS Soil Moisture to 100 m Resolution Using MODIS Optical/Thermal and Sentinel-1 Radar Data: Evaluation over a Bare Soil Site in Morocco", "description": "

The 40 km resolution SMOS (Soil Moisture and Ocean Salinity) soil moisture, previously disaggregated at a 1 km resolution using the DISPATCH (DISaggregation based on Physical And Theoretical scale CHange) method based on MODIS optical/thermal data, is further disaggregated to 100 m resolution using Sentinel-1 backscattering coefficient (\u03c3\u00b0). For this purpose, three distinct radar-based disaggregation methods are tested by linking the spatio-temporal variability of \u03c3\u00b0 and soil moisture data at the 1 km and 100 m resolution. The three methods are: (1) the weight method, which estimates soil moisture at 100 m resolution at a certain time as a function of \u03c3\u00b0 ratio (100 m to 1 km resolution) and the 1 km DISPATCH products of the same time; (2) the regression method which estimates soil moisture as a function of \u03c3\u00b0 where the regression parameters (e.g., intercept and slope) vary in space and time; and (3) the Cumulative Distribution Function (CDF) method, which estimates 100 m resolution soil moisture from the cumulative probability of 100 m resolution backscatter and the maximum to minimum 1 km resolution (DISPATCH) soil moisture difference. In each case, disaggregation results are evaluated against in situ measurements collected between 1 January 2016 and 11 October 2016 over a bare soil site in central Morocco. The determination coefficient (R2) between 1 km resolution DISPATCH and localized in situ soil moisture is 0.31. The regression and CDF methods have marginal effect on improving the DISPATCH accuracy at the station scale with a R2 between remotely sensed and in situ soil moisture of 0.29 and 0.34, respectively. By contrast, the weight method significantly improves the correlation between remotely sensed and in situ soil moisture with a R2 of 0.52. Likewise, the soil moisture estimates show low root mean square difference with in situ measurements (RMSD= 0.032 m3 m\u22123).

", "keywords": ["soil moisture and ocean salinity satellite (SMOS)", "Atmospheric Science", "Artificial intelligence", "Environmental Engineering", "550", "Science", "Soil Moisture", "0211 other engineering and technologies", "Aerospace Engineering", "FOS: Mechanical engineering", "02 engineering and technology", "01 natural sciences", "Environmental science", "[SDU] Sciences of the Universe [physics]", "Engineering", "Meteorology", "DISPATCH", "Image resolution", "Arctic Permafrost Dynamics and Climate Change", "14. Life underwater", "Moisture", "0105 earth and related environmental sciences", "Soil science", "Water content", "Radar", "Geography", "soil moisture and ocean salinity satellite (SMOS); DISPATCH; radar; Sentinel-1; disaggregation; soil moisture", "Soilmoisture and ocean salinity satellite (SMOS)", "Synthetic Aperture Radar Interferometry", "Q", "FOS: Environmental engineering", "Geology", "FOS: Earth and related environmental sciences", "Remote sensing", "Remote Sensing of Soil Moisture", "Surface Deformation Monitoring", "Computer science", "Earth and Planetary Sciences", "Groundwater Extraction", "Geotechnical engineering", "[SDU]Sciences of the Universe [physics]", "disaggregation", "Environmental Science", "Physical Sciences", "Sentinel-1", "soil moisture", "radar"]}, "links": [{"href": "http://www.mdpi.com/2072-4292/9/11/1155/pdf"}, {"href": "https://doi.org/10.3390/rs9111155"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Remote%20Sensing", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.3390/rs9111155", "name": "item", "description": "10.3390/rs9111155", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.3390/rs9111155"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2017-11-10T00:00:00Z"}}, {"id": "10.3390/rs11161863", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-30T16:21:58Z", "type": "Journal Article", "created": "2019-08-09", "title": "Stepwise Disaggregation of SMAP Soil Moisture at 100 m Resolution Using Landsat-7/8 Data and a Varying Intermediate Resolution", "description": "

Global soil moisture (SM) products are currently available from passive microwave sensors at typically 40 km spatial resolution. Although recent efforts have been made to produce 1 km resolution data from the disaggregation of coarse scale observations, the targeted resolution of available SM data is still far from the requirements of fine-scale hydrological and agricultural studies. To fill the gap, a new disaggregation scheme of Soil Moisture Active and Passive (SMAP) data is proposed at 100 m resolution by using the disaggregation based on physical and theoretical scale change (DISPATCH) algorithm. The main objectives of this paper is (i) to implement DISPATCH algorithm at 100 m resolution using SMAP SM and Landsat land surface temperature and vegetation index data and (ii) to investigate the usefulness of an intermediate spatial resolution (ISR) between the SMAP 36 km resolution and the targeted 100 m resolution. The sequential disaggregation approach from 36 km to ISR (ranging from 1 km to 30 km) and from ISR to 100 m resolution is evaluated over 22 irrigated field crops in central Morocco using in-situ SM measurements collected from January to May 2016. The lowest root mean square difference (RMSD) between the 100 m resolution disaggregated and in-situ SM is obtained when the ISR is around 10 km. Therefore, the two-step disaggregation is more efficient than the direct disaggregation from SMAP to 100 m resolution. Moreover, we propose a moving average window algorithm to increase the accuracy in the 100 m resolution SM as well as to reduce the low-resolution boxy artifacts on disaggregated images. The correlation coefficient between 100 m resolution disaggregated and in situ SM ranges between 0.5\u20130.9 for four out of the six extensive sampling dates. This methodology relies solely on remote sensing data and can be easily implemented to monitor SM at a high spatial resolution over irrigated regions.

", "keywords": ["Intermediate spatial resolution", "550", "[SDV]Life Sciences [q-bio]", "Science", "Q", "0211 other engineering and technologies", "SMAP", "04 agricultural and veterinary sciences", "02 engineering and technology", "15. Life on land", "6. Clean water", "[SDV] Life Sciences [q-bio]", "disaggregation;soil moisture;DISPATCH;Intermediate spatial resolution;SMAP", "DISPATCH", "13. Climate action", "disaggregation", "0401 agriculture", " forestry", " and fisheries", "disaggregation; soil moisture; DISPATCH; Intermediate spatial resolution; SMAP", "soil moisture"]}, "links": [{"href": "http://www.mdpi.com/2072-4292/11/16/1863/pdf"}, {"href": "https://www.mdpi.com/2072-4292/11/16/1863/pdf"}, {"href": "https://doi.org/10.3390/rs11161863"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Remote%20Sensing", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.3390/rs11161863", "name": "item", "description": "10.3390/rs11161863", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.3390/rs11161863"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-08-09T00:00:00Z"}}, {"id": "10.3390/rs12101671", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-30T16:21:58Z", "type": "Journal Article", "created": "2020-05-25", "title": "Temporal Calibration of an Evaporation-Based Spatial Disaggregation Method of SMOS Soil Moisture Data", "description": "

The resolution of current satellite surface soil moisture (SM) estimates is very low, of tens of kilometers, which proves to be insufficient for various agricultural and hydrological applications. Amongst the existing downscaling approaches of remotely sensed SM, DISPATCH (DISaggregation based on a Physical And Theoretical scale CHange) improves the resolution of SMOS (Soil Moisture and Ocean Salinity) soil moisture data using soil evaporative efficiency (SEE) estimates at high resolution (HR) and a SEE(SM) model implemented at low resolution (LR). Defined as the ratio of actual to potential soil evaporation, SEE can be derived from the remotely sensed land surface temperature (LST) and normalized difference vegetation index (NDVI). The current version of DISPATCH uses a linear SEE(SM) model. This study aims at improving the SEE(SM) model and testing different calibration strategies, to ultimately have more robust and better downscaled SM products. A nonlinear SEE(SM) model is introduced and its influence on the derived HR SM products is studied over a range of conditions. Each model, linear and nonlinear, is calibrated from remote sensing data on a daily and a multi-date basis. The approaches were tested over two mixed dry and irrigated areas in Catalonia, Spain, and over one dry area in Morocco. When using the linear model, better statistical results were generally obtained using a daily calibration (current version of DISPATCH), most notably over one Spanish site. However, the best results were systematically obtained for an annually calibrated nonlinear model, in terms of all metrics considered: correlation coefficient, slope of the linear regression, bias, unbiased root mean square error. In particular, when using the annually calibrated nonlinear SEE (SM) model, the temporal slope of the linear regression between disaggregated and in situ soil moisture increased to 1.16 and 0.75 for one Spanish site and for the Moroccan site (as opposed to 0.44 and 0.58, respectively, when using the linear model with a daily calibration). The temporal correlation coefficient increased to 0.47 and 0.54 over the Spanish sites (as opposed to 0.18 and 0.27, respectively, when using the linear model with a daily calibration). Those contrasted results indicate compensation effects between the model type and the calibration strategy. Taking into account studies that report the strong nonlinear behavior of the SEE with respect to SM, the introduction of the nonlinear SEE(SM) model in DISPATCH, combined with a multi-date calibration, is proven to perform significantly better under various conditions, leading to more robust disaggregated SM products. The SEE modeling based on the nonlinear SM model, with a multi-date calibration, could be integrated into the CATDS\uffe2\uff80\uff94Centre Aval de Traitement des Donn\uffc3\uffa9es SMOS as a future product, as well as into existing evapotranspiration models, which are based on a combination of thermal and microwave data.

", "keywords": ["550", "Science", "Evaporation", "0207 environmental engineering", "02 engineering and technology", "551", "01 natural sciences", "evaporation", "Disaggregation", "Downscaling", "14. Life underwater", "[SDU.STU.HY]Sciences of the Universe [physics]/Earth Sciences/Hydrology", "0105 earth and related environmental sciences", "Q", "downscaling", "15. Life on land", "[SDU.ENVI] Sciences of the Universe [physics]/Continental interfaces", " environment", "6. Clean water", "MODIS", "13. Climate action", "disaggregation", "[SDU.STU.HY] Sciences of the Universe [physics]/Earth Sciences/Hydrology", "Soil moisture", "[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces", "soil moisture", "environment", "SMOS"]}, "links": [{"href": "http://www.mdpi.com/2072-4292/12/10/1671/pdf"}, {"href": "https://www.mdpi.com/2072-4292/12/10/1671/pdf"}, {"href": "https://doi.org/10.3390/rs12101671"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Remote%20Sensing", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.3390/rs12101671", "name": "item", "description": "10.3390/rs12101671", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.3390/rs12101671"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-05-23T00:00:00Z"}}, {"id": "10.3390/rs14010167", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-30T16:21:59Z", "type": "Journal Article", "created": "2022-01-10", "title": "Disaggregation of SMAP Soil Moisture at 20 m Resolution: Validation and Sub-Field Scale Analysis", "description": "

This paper introduces a modified version of the DisPATCh (Disaggregation based on Physical And Theoretical scale Change) algorithm to disaggregate an SMAP surface soil moisture (SSM) product at a 20 m spatial resolution, through the use of sharpened Sentinel-3 land surface temperature (LST) data. Using sharpened LST as a high resolution proxy of SSM is a novel approach that needs to be validated and can be employed in a variety of applications that currently lack in a product with a similar high spatio-temporal resolution. The proposed high resolution SSM product was validated against available in situ data for two different fields, and it was also compared with two coarser DisPATCh products produced, disaggregating SMAP through the use of an LST at 1 km from Sentinel-3 and MODIS. From the correlation between in situ data and disaggregated SSM products, a general improvement was found in terms of Pearson\uffe2\uff80\uff99s correlation coefficient (R) for the proposed high resolution product with respect to the two products at 1 km. For the first field analyzed, R was equal to 0.47 when considering the 20 m product, an improvement compared to the 0.28 and 0.39 for the 1 km products. The improvement was especially noticeable during the summer season, in which it was only possible to successfully capture field-specific irrigation practices at the 20 m resolution. For the second field, R was 0.31 for the 20 m product, also an improvement compared to the 0.21 and 0.23 for the 1 km product. Additionally, the new product was able to depict SSM spatial variability at a sub-field scale and a validation analysis is also proposed at this scale. The main advantage of the proposed product is its very high spatio-temporal resolution, which opens up new opportunities to apply remotely sensed SSM data in disciplines that require fine spatial scales, such as agriculture and water management.

", "keywords": ["validation", "550", "[SDE.IE]Environmental Sciences/Environmental Engineering", "Science", "Q", "SMAP", "04 agricultural and veterinary sciences", "surface soil moisture", "333", "6. Clean water", "631", "surface soil moisture; disaggregation; DISPATCH; SMAP; validation", "DISPATCH", "disaggregation", "[SDU.STU.HY] Sciences of the Universe [physics]/Earth Sciences/Hydrology", "0401 agriculture", " forestry", " and fisheries", "[SDE.IE] Environmental Sciences/Environmental Engineering", "[SDU.STU.HY]Sciences of the Universe [physics]/Earth Sciences/Hydrology"]}, "links": [{"href": "http://www.mdpi.com/2072-4292/14/1/167/pdf"}, {"href": "https://www.mdpi.com/2072-4292/14/1/167/pdf"}, {"href": "https://doi.org/10.3390/rs14010167"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Remote%20Sensing", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.3390/rs14010167", "name": "item", "description": "10.3390/rs14010167", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.3390/rs14010167"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-12-31T00:00:00Z"}}, {"id": "10.3390/soilsystems3010021", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-30T16:22:02Z", "type": "Journal Article", "created": "2019-03-25", "title": "Abiotic and Biotic Factors Influencing the Effect of Microplastic on Soil Aggregation", "description": "

Plastic is an anthropogenic, ubiquitous and persistent contaminant accumulating in our environment. The consequences of the presence of plastics for soils, including soil biota and the processes they drive, are largely unknown. This is particularly true for microplastic. There is only little data available on the effect of microplastics on key soil processes, including soil aggregation. Here, we investigated the consequences of polyester microfiber contamination on soil aggregation of a sandy soil under laboratory conditions. We aimed to test if the microfiber effects on soil aggregation were predominantly physical or biological. We found that soil biota addition (compared to sterile soil) had a significant positive effect on both the formation and stabilization of soil aggregates, as expected, while wet-dry cycles solely affected aggregate formation. Polyester microfiber contamination did not affect the formation and stability of aggregates. But in the presence of soil biota, microfibers reduced soil aggregate stability. Our results show that polyester microfibers have the potential to alter soil structure, and that these effects are at least partially mediated by soil biota.

", "keywords": ["570", "wet-dry cycle", "Physical geography", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "GB3-5030", "soil aggregation", "Chemistry", "soil microbes", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "polyester", "microplastic", "QD1-999", "fiber", "0105 earth and related environmental sciences"]}, "links": [{"href": "http://www.mdpi.com/2571-8789/3/1/21/pdf"}, {"href": "https://www.mdpi.com/2571-8789/3/1/21/pdf"}, {"href": "https://doi.org/10.3390/soilsystems3010021"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20Systems", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.3390/soilsystems3010021", "name": "item", "description": "10.3390/soilsystems3010021", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.3390/soilsystems3010021"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-03-22T00:00:00Z"}}, {"id": "10.5194/bg-22-601-2025", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-30T16:22:40Z", "type": "Journal Article", "created": "2025-01-31", "title": "Contrasting seasonal patterns in particle aggregation and dissolved organic matter transformation in a sub-Arctic fjord", "description": "

Abstract. Particulate (POM) and dissolved (DOM) organic matter in the ocean are important components of the Earth's biogeochemical cycle. The two are in a constant state of dynamic change as a result of physical and biochemical processes; however, they are mostly treated as two distinct entities, separated operationally by a filter. We studied the seasonal transition of DOM and POM pools and their drivers in a sub-Arctic fjord by means of monthly environmental sampling and by performing experiments at selected time points. For the experiments, surface water (5\u2009m) was either pre-filtered through a GF/F filter (0.7\u2009\u00b5m) or left unfiltered, followed by 36\u2009h incubations. Before and after incubation, samples were collected for dissolved and particulate organic carbon concentrations (DOC, POC), extracellular polymeric substances (EPSs), microbial community (flow cytometry), and molecular composition of DOM (high-performance liquid chromatography coupled to high-resolution mass spectrometry \u2013 HPLC-HRMS). During the biologically productive period, when environmental POC concentrations were high (April, June, September), the filtered water showed an increase in POC concentrations. While POC concentrations increased in September, DOM lability decreased based on changes in the average hydrogen saturation and aromaticity of DOM molecules. In contrast, during the winter period (December and February), when environmental POC concentrations were low, lower concentrations of POC were measured at the end of the experiments compared to at the start. The change in POC concentrations was significantly different between the biologically productive period and the winter period (t test; p<0.05). Simultaneously, the DOM pool became more labile during the incubation period, as indicated by changes in the average hydrogen saturation, aromaticity, and oxygen saturation, with implications for carbon cycling. The change in POC was not directly associated with an antagonistic change in DOC concentrations, highlighting the complexity of organic matter transformations, making the dynamics between POC and DOC difficult to quantify. However, in both periods, bacterial activity and EPS concentrations increased throughout the incubations, showing that bacterial degradation and physical DOM aggregation drive the transformations of POM and DOM in concert but at varying degrees under different environmental conditions.

", "keywords": ["particulate organic carbon", "seasonal variation", "QE1-996.5", "Ecology", "saturation", "aggregation", "surface water", "fjord", "Geology", "biogeochemical cycle", "Milj\u00f6vetenskap", "dissolved organic carbon", "microbial activity", "environmental conditions", "Life", "QH501-531", "microbial community", "Environmental Sciences", "QH540-549.5"], "contacts": [{"organization": "Maria G. Digernes, Yasemin V. Bodur, Mart\u00ed Amargant-Arum\u00ed, Oliver M\u00fcller, Jeffrey A. Hawkes, Stephen G. Kohler, Ulrike Dietrich, Marit Reigstad, Maria L. Paulsen,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5194/bg-22-601-2025"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/bg-22-601-2025", "name": "item", "description": "10.5194/bg-22-601-2025", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-22-601-2025"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2025-01-31T00:00:00Z"}}, {"id": "10.5281/zenodo.3477551", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-30T16:24:25Z", "type": "Report", "title": "Unsupervised local cluster-weighted Bagging the output from multiple stochastic simulators", "description": "Unsupervised local cluster-weighted Bagging the output from multiple stochastic simulators. The objective of this research
is to derive the local posterior predictive distribution when output from multiple (multi-fidelity) stochastic simulators are available.", "keywords": ["Model aggregation", "Model uncertainty", "Bagging", "Model combination", "multi-fidelity stochastic simulators", "Clustering", "Model Fusion"], "contacts": [{"organization": "Abdallah, Imad", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5281/zenodo.3477551"}, {"rel": "self", "type": "application/geo+json", "title": "10.5281/zenodo.3477551", "name": "item", "description": "10.5281/zenodo.3477551", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5281/zenodo.3477551"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-01-01T00:00:00Z"}}, {"id": "10459.1/60556", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-30T16:25:58Z", "type": "Journal Article", "created": "2017-11-10", "title": "Disaggregation of SMOS Soil Moisture to 100 m Resolution Using MODIS Optical/Thermal and Sentinel-1 Radar Data: Evaluation over a Bare Soil Site in Morocco", "description": "

The 40 km resolution SMOS (Soil Moisture and Ocean Salinity) soil moisture, previously disaggregated at a 1 km resolution using the DISPATCH (DISaggregation based on Physical And Theoretical scale CHange) method based on MODIS optical/thermal data, is further disaggregated to 100 m resolution using Sentinel-1 backscattering coefficient (\u03c3\u00b0). For this purpose, three distinct radar-based disaggregation methods are tested by linking the spatio-temporal variability of \u03c3\u00b0 and soil moisture data at the 1 km and 100 m resolution. The three methods are: (1) the weight method, which estimates soil moisture at 100 m resolution at a certain time as a function of \u03c3\u00b0 ratio (100 m to 1 km resolution) and the 1 km DISPATCH products of the same time; (2) the regression method which estimates soil moisture as a function of \u03c3\u00b0 where the regression parameters (e.g., intercept and slope) vary in space and time; and (3) the Cumulative Distribution Function (CDF) method, which estimates 100 m resolution soil moisture from the cumulative probability of 100 m resolution backscatter and the maximum to minimum 1 km resolution (DISPATCH) soil moisture difference. In each case, disaggregation results are evaluated against in situ measurements collected between 1 January 2016 and 11 October 2016 over a bare soil site in central Morocco. The determination coefficient (R2) between 1 km resolution DISPATCH and localized in situ soil moisture is 0.31. The regression and CDF methods have marginal effect on improving the DISPATCH accuracy at the station scale with a R2 between remotely sensed and in situ soil moisture of 0.29 and 0.34, respectively. By contrast, the weight method significantly improves the correlation between remotely sensed and in situ soil moisture with a R2 of 0.52. Likewise, the soil moisture estimates show low root mean square difference with in situ measurements (RMSD= 0.032 m3 m\u22123).

", "keywords": ["soil moisture and ocean salinity satellite (SMOS)", "Atmospheric Science", "Artificial intelligence", "Environmental Engineering", "550", "Science", "Soil Moisture", "0211 other engineering and technologies", "Aerospace Engineering", "FOS: Mechanical engineering", "02 engineering and technology", "01 natural sciences", "Environmental science", "[SDU] Sciences of the Universe [physics]", "Engineering", "Meteorology", "DISPATCH", "Image resolution", "Arctic Permafrost Dynamics and Climate Change", "14. Life underwater", "Moisture", "0105 earth and related environmental sciences", "Soil science", "Water content", "Radar", "Geography", "soil moisture and ocean salinity satellite (SMOS); DISPATCH; radar; Sentinel-1; disaggregation; soil moisture", "Soilmoisture and ocean salinity satellite (SMOS)", "Synthetic Aperture Radar Interferometry", "Q", "FOS: Environmental engineering", "Geology", "FOS: Earth and related environmental sciences", "Remote sensing", "Remote Sensing of Soil Moisture", "Surface Deformation Monitoring", "Computer science", "Earth and Planetary Sciences", "Groundwater Extraction", "Geotechnical engineering", "[SDU]Sciences of the Universe [physics]", "disaggregation", "Environmental Science", "Physical Sciences", "Sentinel-1", "soil moisture", "radar"]}, "links": [{"href": "http://www.mdpi.com/2072-4292/9/11/1155/pdf"}, {"href": "https://doi.org/10459.1/60556"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Remote%20Sensing", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10459.1/60556", "name": "item", "description": "10459.1/60556", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10459.1/60556"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2017-11-10T00:00:00Z"}}, {"id": "10400.22/10990", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-05-30T16:25:56Z", "type": "Report", "title": "Agrega\u00e7\u00e3o e utiliza\u00e7\u00e3o eficiente de produ\u00e7\u00e3o distribu\u00edda e de flexibilidade das cargas no \u00e2mbito das Smart Grids", "description": "O paradigma atual dos sistemas de energia \u00e9 relativo \u00e0 implementa\u00e7\u00e3o do conceito de smart grids nas redes existentes, requerendo novas ferramentas de gest\u00e3o de recursos energ\u00e9ticos. A inclus\u00e3o de novos tipos de recursos como a produ\u00e7\u00e3o distribu\u00edda e flexibilidade das cargas (demand response), implica o desenvolvimento de metodologias que permitam \u00e0s entidades j\u00e1 existentes e \u00e0s que ser\u00e3o introduzidas pelo conceito de smart grids, lidar com os dive providenciando ferramentas de gest\u00e3o, agrega\u00e7\u00e3o, e remunera\u00e7\u00e3o de recursos, atrav\u00e9s da considera\u00e7\u00e3o de v\u00e1rios programas de demand response e produ\u00e7\u00e3o distribu\u00edda. A simula\u00e7\u00e3o \u00e9 parametriz\u00e1vel, possibilitando assim \u00e0 entidade agregadora uma maior versatilidade de opera\u00e7\u00e3o e explora\u00e7\u00e3o dos recursos. Alguns exemplos da parametriza\u00e7\u00e3o incluem a considera\u00e7\u00e3o de horizontes temporais distintos, prefer\u00eancias do utilizador quanto ao escalonamento, n\u00famero m\u00ednimo e m\u00e1ximo de grupos obtidos da agrega\u00e7\u00e3o e o tipo de agrega\u00e7\u00e3o utilizado, bem como o tipo de remunera\u00e7\u00e3o a aplicar. Atrav\u00e9s da utiliza\u00e7\u00e3o das metodologias propostas nesta disserta\u00e7\u00e3o, o agregador obt\u00e9m os resultados das suas atividades numa \u00fanica ferramenta, realizando a gest\u00e3o, agrega\u00e7\u00e3o, e remunera\u00e7\u00e3o, possuindo os resultados com mais anteced\u00eancia. A ferramenta permite uma pondera\u00e7\u00e3o mais cuidada por parte do agregador relativamente \u00e0 opera\u00e7\u00e3o dos recursos na rede. A valida\u00e7\u00e3o das metodologias propostas \u00e9 realizada com recurso a tr\u00eas casos de estudo, de diferentes dimens\u00f5es e caracter\u00edsticas, possibilitando assim uma avalia\u00e7\u00e3o robusta das metodologias tendo em conta diversos tipos de cen\u00e1rios de aplica\u00e7\u00e3o. Assim, \u00e9 poss\u00edvel traduzir o comportamento de uma entidade agregadora face \u00e0 disponibilidade de v\u00e1rios recursos e as caracter\u00edsticas que estes apresentam. Em cada caso de estudo, s\u00e3o consideradas diferentes abordagens \u00e0s atividades do agregador, nomeadamente, atrav\u00e9s do uso de diversas restri\u00e7\u00f5es e da mudan\u00e7a da fun\u00e7\u00e3o objetivo. Apresentam-se tamb\u00e9m as limita\u00e7\u00f5es das metodologias propostas, as quais foram encontradas durante a simula\u00e7\u00e3o dos casos de estudo.", "keywords": ["Escalonamento otimizado", "Demand response", "Resource\u2019s remuneration", "Produ\u00e7\u00e3o distribu\u00edda", "Optimized scheduling", "Remunera\u00e7\u00e3o de recursos", "Flexibilidade da carga", "Distributed generation", "Resource\u2019s aggregation", "7. Clean energy", "Agrega\u00e7\u00e3o de recursos"], "contacts": [{"organization": "Sp\u00ednola, Jo\u00e3o Afonso Paix\u00e3o", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10400.22/10990"}, {"rel": "self", "type": "application/geo+json", "title": "10400.22/10990", "name": "item", "description": "10400.22/10990", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10400.22/10990"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2016-01-01T00:00:00Z"}}, {"id": "11250/3212345", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-05-30T16:26:08Z", "type": "Journal Article", "created": "2025-01-31", "title": "Contrasting seasonal patterns in particle aggregation and dissolved organic matter transformation in a sub-Arctic fjord", "description": "

Abstract. Particulate (POM) and dissolved (DOM) organic matter in the ocean are important components of the Earth's biogeochemical cycle. The two are in a constant state of dynamic change as a result of physical and biochemical processes; however, they are mostly treated as two distinct entities, separated operationally by a filter. We studied the seasonal transition of DOM and POM pools and their drivers in a sub-Arctic fjord by means of monthly environmental sampling and by performing experiments at selected time points. For the experiments, surface water (5\u2009m) was either pre-filtered through a GF/F filter (0.7\u2009\u00b5m) or left unfiltered, followed by 36\u2009h incubations. Before and after incubation, samples were collected for dissolved and particulate organic carbon concentrations (DOC, POC), extracellular polymeric substances (EPSs), microbial community (flow cytometry), and molecular composition of DOM (high-performance liquid chromatography coupled to high-resolution mass spectrometry \u2013 HPLC-HRMS). During the biologically productive period, when environmental POC concentrations were high (April, June, September), the filtered water showed an increase in POC concentrations. While POC concentrations increased in September, DOM lability decreased based on changes in the average hydrogen saturation and aromaticity of DOM molecules. In contrast, during the winter period (December and February), when environmental POC concentrations were low, lower concentrations of POC were measured at the end of the experiments compared to at the start. The change in POC concentrations was significantly different between the biologically productive period and the winter period (t test; p<0.05). Simultaneously, the DOM pool became more labile during the incubation period, as indicated by changes in the average hydrogen saturation, aromaticity, and oxygen saturation, with implications for carbon cycling. The change in POC was not directly associated with an antagonistic change in DOC concentrations, highlighting the complexity of organic matter transformations, making the dynamics between POC and DOC difficult to quantify. However, in both periods, bacterial activity and EPS concentrations increased throughout the incubations, showing that bacterial degradation and physical DOM aggregation drive the transformations of POM and DOM in concert but at varying degrees under different environmental conditions.

", "keywords": ["particulate organic carbon", "seasonal variation", "QE1-996.5", "Ecology", "saturation", "aggregation", "surface water", "fjord", "Geology", "biogeochemical cycle", "Milj\u00f6vetenskap", "dissolved organic carbon", "microbial activity", "environmental conditions", "Life", "QH501-531", "microbial community", "Environmental Sciences", "QH540-549.5"]}, "links": [{"href": "https://doi.org/11250/3212345"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "11250/3212345", "name": "item", "description": "11250/3212345", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/11250/3212345"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2025-01-31T00:00:00Z"}}, {"id": "2968813128", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-30T16:27:12Z", "type": "Journal Article", "created": "2019-08-09", "title": "Stepwise Disaggregation of SMAP Soil Moisture at 100 m Resolution Using Landsat-7/8 Data and a Varying Intermediate Resolution", "description": "

Global soil moisture (SM) products are currently available from passive microwave sensors at typically 40 km spatial resolution. Although recent efforts have been made to produce 1 km resolution data from the disaggregation of coarse scale observations, the targeted resolution of available SM data is still far from the requirements of fine-scale hydrological and agricultural studies. To fill the gap, a new disaggregation scheme of Soil Moisture Active and Passive (SMAP) data is proposed at 100 m resolution by using the disaggregation based on physical and theoretical scale change (DISPATCH) algorithm. The main objectives of this paper is (i) to implement DISPATCH algorithm at 100 m resolution using SMAP SM and Landsat land surface temperature and vegetation index data and (ii) to investigate the usefulness of an intermediate spatial resolution (ISR) between the SMAP 36 km resolution and the targeted 100 m resolution. The sequential disaggregation approach from 36 km to ISR (ranging from 1 km to 30 km) and from ISR to 100 m resolution is evaluated over 22 irrigated field crops in central Morocco using in-situ SM measurements collected from January to May 2016. The lowest root mean square difference (RMSD) between the 100 m resolution disaggregated and in-situ SM is obtained when the ISR is around 10 km. Therefore, the two-step disaggregation is more efficient than the direct disaggregation from SMAP to 100 m resolution. Moreover, we propose a moving average window algorithm to increase the accuracy in the 100 m resolution SM as well as to reduce the low-resolution boxy artifacts on disaggregated images. The correlation coefficient between 100 m resolution disaggregated and in situ SM ranges between 0.5\u20130.9 for four out of the six extensive sampling dates. This methodology relies solely on remote sensing data and can be easily implemented to monitor SM at a high spatial resolution over irrigated regions.

", "keywords": ["Intermediate spatial resolution", "550", "[SDV]Life Sciences [q-bio]", "Science", "Q", "0211 other engineering and technologies", "SMAP", "04 agricultural and veterinary sciences", "02 engineering and technology", "15. Life on land", "6. Clean water", "[SDV] Life Sciences [q-bio]", "disaggregation;soil moisture;DISPATCH;Intermediate spatial resolution;SMAP", "DISPATCH", "13. Climate action", "disaggregation", "0401 agriculture", " forestry", " and fisheries", "disaggregation; soil moisture; DISPATCH; Intermediate spatial resolution; SMAP", "soil moisture"]}, "links": [{"href": "http://www.mdpi.com/2072-4292/11/16/1863/pdf"}, {"href": "https://www.mdpi.com/2072-4292/11/16/1863/pdf"}, {"href": "https://doi.org/2968813128"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Remote%20Sensing", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "2968813128", "name": "item", "description": "2968813128", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/2968813128"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-08-09T00:00:00Z"}}, {"id": "2767588274", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-30T16:27:04Z", "type": "Journal Article", "created": "2017-11-10", "title": "Disaggregation of SMOS Soil Moisture to 100 m Resolution Using MODIS Optical/Thermal and Sentinel-1 Radar Data: Evaluation over a Bare Soil Site in Morocco", "description": "

The 40 km resolution SMOS (Soil Moisture and Ocean Salinity) soil moisture, previously disaggregated at a 1 km resolution using the DISPATCH (DISaggregation based on Physical And Theoretical scale CHange) method based on MODIS optical/thermal data, is further disaggregated to 100 m resolution using Sentinel-1 backscattering coefficient (\u03c3\u00b0). For this purpose, three distinct radar-based disaggregation methods are tested by linking the spatio-temporal variability of \u03c3\u00b0 and soil moisture data at the 1 km and 100 m resolution. The three methods are: (1) the weight method, which estimates soil moisture at 100 m resolution at a certain time as a function of \u03c3\u00b0 ratio (100 m to 1 km resolution) and the 1 km DISPATCH products of the same time; (2) the regression method which estimates soil moisture as a function of \u03c3\u00b0 where the regression parameters (e.g., intercept and slope) vary in space and time; and (3) the Cumulative Distribution Function (CDF) method, which estimates 100 m resolution soil moisture from the cumulative probability of 100 m resolution backscatter and the maximum to minimum 1 km resolution (DISPATCH) soil moisture difference. In each case, disaggregation results are evaluated against in situ measurements collected between 1 January 2016 and 11 October 2016 over a bare soil site in central Morocco. The determination coefficient (R2) between 1 km resolution DISPATCH and localized in situ soil moisture is 0.31. The regression and CDF methods have marginal effect on improving the DISPATCH accuracy at the station scale with a R2 between remotely sensed and in situ soil moisture of 0.29 and 0.34, respectively. By contrast, the weight method significantly improves the correlation between remotely sensed and in situ soil moisture with a R2 of 0.52. Likewise, the soil moisture estimates show low root mean square difference with in situ measurements (RMSD= 0.032 m3 m\u22123).

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