{"type": "FeatureCollection", "features": [{"id": "10.1088/1748-9326/aa7145", "type": "Feature", "geometry": null, "properties": {"updated": "2026-06-24T16:18:58Z", "type": "Journal Article", "created": "2017-05-05", "title": "Vegetation anomalies caused by antecedent precipitation in most of the world", "description": "Quantifying environmental controls on vegetation is critical to predict the net effect of climate change on global ecosystems and the subsequent feedback on climate. Following a non-linear Granger causality framework based on a random forest predictive model, we exploit the current wealth of multi-decadal satellite data records to uncover the main drivers of monthly vegetation variability at the global scale. Results indicate that water availability is the most dominant factor driving vegetation globally: about 61% of the vegetated surface was primarily water-limited during 1981\u20132010. This included semiarid climates but also transitional ecoregions. Intra-annually, temperature controls Northern Hemisphere deciduous forests during the growing season, while antecedent precipitation largely dominates vegetation dynamics during the senescence period. The uncovered dependency of global vegetation on water availability is substantially larger than previously reported. This is owed to the ability of the framework to (1) disentangle the co-linearities between radiation/temperature and precipitation, and (2) quantify non-linear impacts of climate on vegetation. Our results reveal a prolonged effect of precipitation anomalies in dry regions: due to the long memory of soil moisture and the cumulative, non-linear, response of vegetation, water-limited regions show sensitivity to the values of precipitation occurring three months earlier. Meanwhile, the impacts of temperature and radiation anomalies are more immediate and dissipate shortly, pointing to a higher resilience of vegetation to these anomalies. Despite being infrequent by definition, hydro-climatic extremes are responsible for up to 10% of the vegetation variability during the 1981\u20132010 period in certain areas, particularly in water-limited ecosystems. Our approach is a first step towards a quantitative comparison of the resistance and resilience signature of different ecosystems, and can be used to benchmark Earth system models in their representations of past vegetation sensitivity to changes in climate.", "keywords": ["Science", "QC1-999", "water", "TROPICAL FORESTS", "0207 environmental engineering", "02 engineering and technology", "SOIL-MOISTURE", "Environmental technology. Sanitary engineering", "01 natural sciences", "stress", "water stress", "global vegetation", "AMAZON", "FORESTS", "CLIMATE EXTREMES", "hydro-climatic extremes", "ecosystem resilience", "DRY-SEASON", "GE1-350", "TEMPERATURE", "SATELLITE", "TD1-1066", "0105 earth and related environmental sciences", "Physics", "Q", "Biology and Life Sciences", "15. Life on land", "6. Clean water", "Environmental sciences", "NDVI DATA", "13. Climate action", "Earth and Environmental Sciences", "GROWING-SEASON", "Granger causality", "CARBON-CYCLE"]}, "links": [{"href": "https://doi.org/10.1088/1748-9326/aa7145"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Research%20Letters", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1088/1748-9326/aa7145", "name": "item", "description": "10.1088/1748-9326/aa7145", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1088/1748-9326/aa7145"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2017-07-01T00:00:00Z"}}, {"id": "10.1088/1748-9326/abfe8a", "type": "Feature", "geometry": null, "properties": {"updated": "2026-06-24T16:18:59Z", "type": "Journal Article", "created": "2021-05-06", "title": "Decreased soil moisture due to warming drives phylogenetic diversity and community transitions in the tundra", "description": "Abstract

Global warming leads to drastic changes in the diversity and structure of Arctic plant communities. Studies of functional diversity within the Arctic tundra biome have improved our understanding of plant responses to warming. However, these studies still show substantial unexplained variation in diversity responses. Complementary to functional diversity, phylogenetic diversity has been useful in climate change studies, but has so far been understudied in the Arctic. Here, we use a 25 year warming experiment to disentangle community responses in Arctic plant phylogenetic \uffce\uffb2 diversity across a soil moisture gradient. We found that responses varied over the soil moisture gradient, where meadow communities with intermediate to high soil moisture had a higher magnitude of response. Warming had a negative effect on soil moisture levels in all meadow communities, however meadows with intermediate moisture levels were more sensitive. In these communities, soil moisture loss was associated with earlier snowmelt, resulting in community turnover towards a more heath-like community. This process of \uffe2\uff80\uff98heathification\uffe2\uff80\uff99 in the intermediate moisture meadows was driven by the expansion of ericoid and Betula shrubs. In contrast, under a more consistent water supply Salix shrub abundance increased in wet meadows. Due to its lower stature, palatability and decomposability, the increase in heath relative to meadow vegetation can have several large scale effects on the local food web as well as climate. Our study highlights the importance of the hydrological cycle as a driver of vegetation turnover in response to Arctic climate change. The observed patterns in phylogenetic \uffce\uffb2 diversity were often driven by contrasting responses of species of the same functional growth form, and could thus provide important complementary information. Thus, phylogenetic diversity is an important tool in disentangling tundra response to environmental change.Microplastic as an anthropogenic pollutant accumulates in terrestrial ecosystems over time, threatening soil quality and health, for example by decreasing aggregate stability. Organic matter addition is an efficient approach to promote aggregate stability, yet little is known about whether microplastic can reduce the beneficial effect of organic matter on aggregate stability. We investigated the impacts of microplastic fibers in the presence or absence of different organic materials by carrying out a soil incubation experiment. This experiment was set up as a fully factorial design containing all combinations of microplastic fibers (no microplastic fiber addition, two different types of polyester fibers, and polyacrylic) and organic matter (no organic matter addition, Medicago lupulina leaves, Plantago lanceolata leaves, wheat straw, and hemp stems). We evaluated the percentage of water-stable aggregates (WSA) and activities of four soil enzymes (\uffce\uffb2-glucosidase, \uffce\uffb2-D-celluliosidase, N-acetyl-b-glucosaminidase, phosphatase). Organic matter addition increased WSA and enzyme activities, as expected. In particular, Plantago or wheat straw addition increased WSA and enzyme activities by 224.77 or 281.65% and 298.51 or 55.45%, respectively. Microplastic fibers had no effect on WSA and enzyme activities in the soil without organic matter addition, but decreased WSA and enzyme activities by 26.20 or 37.57% and 23.85 or 26.11%, respectively, in the presence of Plantago or wheat straw. Our study shows that the effects of microplastic fibers on soil aggregation and enzyme activities are organic matter dependent. A possible reason is that Plantago and wheat straw addition stimulated soil aggregation to a greater degree, resulting in more newly formed aggregates containing microplastic, the incorporated microplastic fibers led to less stable aggregates, and decrease in enzyme activities This highlights an important aspect of the context dependency of microplastic effects in soil and on soil health. Our results also suggest risks for soil stability associated with organic matter additions, such as is common in agroecosystems, when microplastics are present.

", "keywords": ["2. Zero hunger", "570", "soil health", "soil aggregate stability", "500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie::570 Biowissenschaften; Biologie", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "enzyme activity", "Environmental sciences", "plastic pollution", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "GE1-350", "soil structure", "microplastic", "organic matter", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.3389/fenvs.2021.650155"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Frontiers%20in%20Environmental%20Science", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.3389/fenvs.2021.650155", "name": "item", "description": "10.3389/fenvs.2021.650155", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.3389/fenvs.2021.650155"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-04-06T00:00:00Z"}}, {"id": "10.1088/1748-9326/9/11/115010", "type": "Feature", "geometry": null, "properties": {"updated": "2026-06-24T16:18:58Z", "type": "Journal Article", "created": "2014-11-18", "title": "Maintaining Yields And Reducing Nitrogen Loss In Rice-Wheat Rotation System In Taihu Lake Region With Proper Fertilizer Management", "description": "In the Tailake region of China, heavy nitrogen (N) loss of rice\u2013wheat rotation systems, due to high fertilizer-N input with low N use efficiency (NUE), was widely reported. To alleviate the detrimental impacts caused by N loss, it is necessary to improve the fertilizer management practices. Therefore, a 3 yr field experiments with different N managements including organic combined chemical N treatment (OCN, 390 kg N ha ^\u22121 yr ^\u22121 , 20% organic fertilizer), control\u2013released urea treatment (CRU, 390 kg N ha ^\u22121 yr ^\u22121 , 70% resin-coated urea), reduced chemical N treatment (RCN, 390 kg N ha ^\u22121 yr ^\u22121 , all common chemical fertilizer), and site-specific N management (SSNM, 333 kg N ha ^\u22121 yr ^\u22121 , all common chemical fertilizer) were conducted in the Taihu Lake region with the \u2018farmer\u2019s N\u2019 treatment (FN, 510 kg N ha ^\u22121 yr ^\u22121 , all common chemical fertilizer) as a control. Grain yield, plant N uptake (PNU), NUE, and N losses via runoff, leaching, and ammonia volatilization were assessed. In the rice season, the FN treatment had the highest N loss and lowest NUE, which can be attributed to an excessive rate of N application. Treatments of OCN and RCN with a 22% reduced N rate from FN had no significant effect on PNU nor the yield of rice in the 3 yr; however, the NUE was improved and N loss was reduced 20\u201332%. OCN treatment achieved the highest yield, while SSNM has the lowest N loss and highest NUE due to the lowest N rate. In wheat season, N loss decreased about 28\u201348% with the continuous reduction of N input, but the yield also declined, with the exception of OCN treatment. N loss through runoff, leaching and ammonia volatilization was positively correlated with the N input rate. When compared with the pure chemical fertilizer treatment of RCN under the same N input, OCN treatment has better NUE, better yield, and lower N loss. 70% of the urea replaced with resin-coated urea had no significant effect on yield and NUE improvement, but decreased the ammonia volatilization loss. Soil total N and organic matter content showed a decrease after three continuous cropping years with inorganic fertilizer application alone, but there was an increase with the OCN treatment. N balance analysis showed a N surplus for FN treatment and a balanced N budget for OCN treatment. To reduce the environmental impact and maintain a high crop production, proper N reduction together with organic amendments could be sustainable in the rice\u2013wheat rotation system in the Taihu Lake region for a long run.", "keywords": ["2. Zero hunger", "0106 biological sciences", "soil fertility", "grain yield", "Science", "Physics", "QC1-999", "Q", "04 agricultural and veterinary sciences", "rice\u2013wheat rotation", "15. Life on land", "Environmental technology. Sanitary engineering", "01 natural sciences", "nitrogen use efficiency", "6. Clean water", "Environmental sciences", "organic amendments", "13. Climate action", "8. Economic growth", "0401 agriculture", " forestry", " and fisheries", "N loss", "GE1-350", "TD1-1066"], "contacts": [{"organization": "Linzhang Yang, Yingliang Yu, Lihong Xue,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1088/1748-9326/9/11/115010"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Research%20Letters", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1088/1748-9326/9/11/115010", "name": "item", "description": "10.1088/1748-9326/9/11/115010", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1088/1748-9326/9/11/115010"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2014-11-01T00:00:00Z"}}, {"id": "10.1088/1748-9326/aa9c5c", "type": "Feature", "geometry": null, "properties": {"updated": "2026-06-24T16:18:58Z", "type": "Journal Article", "created": "2017-11-22", "title": "Gap assessment in current soil monitoring networks across Europe for measuring soil functions", "description": "Soil is the most important natural resource for life on Earth after water. Given its fundamental role in sustaining the human population, both the availability and quality of soil must be managed sustainably and protected. To ensure sustainable management we need to understand the intrinsic functional capacity of different soils across Europe and how it changes over time. Soil monitoring is needed to support evidence-based policies to incentivise sustainable soil management. To this aim, we assessed which soil attributes can be used as potential indicators of five soil functions; (1) primary production, (2) water purification and regulation, (3) carbon sequestration and climate regulation, (4) soil biodiversity and habitat provisioning and (5) recycling of nutrients. We compared this list of attributes to existing national (regional) and EU-wide soil monitoring networks. The overall picture highlighted a clearly unbalanced dataset, in which predominantly chemical soil parameters were included, and soil biological and physical attributes were severely under represented. Methods applied across countries for indicators also varied. At a European scale, the LUCAS-soil survey was evaluated and again confirmed a lack of important soil biological parameters, such as C mineralisation rate, microbial biomass and earthworm community, and soil physical measures such as bulk density. In summary, no current national or European monitoring system exists which has the capacity to quantify the five soil functions and therefore evaluate multi-functional capacity of a soil and in many countries no data exists at all. This paper calls for the addition of soil biological and some physical parameters within the LUCAS-soil survey at European scale and for further development of national soil monitoring schemes.", "keywords": ["[SDE] Environmental Sciences", "570", "[SDV]Life Sciences [q-bio]", "Science", "QC1-999", "soil functions;soil monitoring networks;soil attributes;Europe", "Environmental technology. Sanitary engineering", "630", "12. Responsible consumption", "GE1-350", "TD1-1066", "2. Zero hunger", "Physics", "Q", "04 agricultural and veterinary sciences", "soil functions", "15. Life on land", "S590 Soill / Talajtan", "soil monitoring networks", "6. Clean water", "[SDV] Life Sciences [q-bio]", "Europe", "Environmental sciences", "soil attributes", "13. Climate action", "[SDE]Environmental Sciences", "0401 agriculture", " forestry", " and fisheries"]}, "links": [{"href": "https://hal.inrae.fr/hal-02622332/file/2017_Leeuwen_Environmental%20Research%20Letters_1.pdf"}, {"href": "https://doi.org/10.1088/1748-9326/aa9c5c"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Research%20Letters", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1088/1748-9326/aa9c5c", "name": "item", "description": "10.1088/1748-9326/aa9c5c", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1088/1748-9326/aa9c5c"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2017-12-01T00:00:00Z"}}, {"id": "10.1088/1748-9326/abee4b", "type": "Feature", "geometry": null, "properties": {"updated": "2026-06-24T16:18:59Z", "type": "Journal Article", "created": "2021-03-12", "title": "Preferential export of permafrost-derived organic matter as retrogressive thaw slumping intensifies", "description": "Abstract

Enhanced warming of the Northern high latitudes has intensified thermokarst processes throughout the permafrost zone. Retrogressive thaw slumps (RTS), where thaw-driven erosion caused by ground ice melt creates terrain disturbances extending over tens of hectares, represent particularly dynamic thermokarst features. Biogeochemical transformation of the mobilized substrate may release CO2 to the atmosphere and impact downstream ecosystems, yet its fate remains unclear. The Peel Plateau in northwestern Canada hosts some of the largest RTS features in the Arctic. Here, thick deposits of Pleistocene-aged glacial tills are overlain by a thinner layer of relatively organic-rich Holocene-aged permafrost that aggraded upward following deeper thaw and soil development during the early Holocene warm period. In this study, we characterize exposed soil layers and the mobilized material by analysing sediment properties and organic matter composition in active layer, Holocene and Pleistocene permafrost, recently thawed debris deposits and fresh deposits of slump outflow from four separate RTS features. We found that organic matter content, radiocarbon age and biomarker concentrations in debris and outflow deposits from all four sites were most similar to permafrost soils, with a lesser influence of the organic-rich active layer. Lipid biomarkers suggested a significant contribution of petrogenic carbon especially in Pleistocene permafrost. Active layer samples contained abundant intrinsically labile macromolecular components (polysaccharides, lignin markers, phenolic and N-containing compounds). All other samples were dominated by degraded organic constituents. Active layer soils, although heterogeneous, also had the highest median grain sizes, whereas debris and runoff deposits consisted of finer mineral grains and were generally more homogeneous, similar to permafrost. We thus infer that both organic matter degradation and hydrodynamic sorting during transport affect the mobilized material. Determining the relative magnitude of these two processes will be crucial to better assess the role of intensifying RTS activity in CO2 release and ecosystem carbon fluxes.Arctic cyclones, as a prevalent feature in the coupled dynamics of the Arctic climate system, have large impacts on the atmospheric transport of heat and moisture and deformation and drifting of sea ice. Previous studies based on historical and future simulations with climate models suggest that Arctic cyclogenesis is affected by the Arctic amplification of global warming, for instance, a growing land-sea thermal contrast. We thus hypothesize that biogeophysical feedbacks (BF) over the land, here mainly referring to the albedo-induced warming in spring and evaporative cooling in summer, may have the potential to significantly change cyclone activity in the Arctic. Based on a regional Earth system model (RCA-GUESS) which couples a dynamic vegetation model and a regional atmospheric model and an algorithm of cyclone detection and tracking, this study assesses for the first time the impacts of BF on the characteristics of Arctic cyclones under three IPCC Representative Concentration Pathways scenarios (i.e. RCP2.6, RCP4.5 and RCP8.5). Our analysis focuses on the spring- and summer time periods, since previous studies showed BF are the most pronounced in these seasons. We find that BF induced by changes in surface heat fluxes lead to changes in land-sea thermal contrast and atmospheric stability. This, in turn, noticeably changes the atmospheric baroclinicity and, thus, leads to a change of cyclone activity in the Arctic, in particular to the increase of cyclone frequency over the Arctic Ocean in spring. This study highlights the importance of accounting for BF in the prediction of Arctic cyclones and the role of circulation in the Arctic regional Earth system.

", "keywords": ["Arctic climate change", "vegetation dynamics", "Science", "Physics", "QC1-999", "biogeophysical feedbacks", "Q", "15. Life on land", "RCA-GUESS", "Environmental technology. Sanitary engineering", "01 natural sciences", "Environmental sciences", "13. Climate action", "Arctic cyclones", "XXXXXX - Unknown", "GE1-350", "TD1-1066", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1088/1748-9326/ac0566"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Research%20Letters", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1088/1748-9326/ac0566", "name": "item", "description": "10.1088/1748-9326/ac0566", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1088/1748-9326/ac0566"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-06-01T00:00:00Z"}}, {"id": "10.1088/1748-9326/ac9b50", "type": "Feature", "geometry": null, "properties": {"updated": "2026-06-24T16:18:59Z", "type": "Journal Article", "created": "2022-10-19", "title": "Synthesizing the evidence of nitrous oxide mitigation practices in agroecosystems", "description": "Abstract

Nitrous oxide (N2O) emissions from agricultural soils are the main source of atmospheric N2O, a potent greenhouse gas and key ozone-depleting substance. Several agricultural practices with potential to mitigate N2O emissions have been tested worldwide. However, to guide policymaking for reducing N2O emissions from agricultural soils, it is necessary to better understand the overall performance and variability of mitigation practices and identify those requiring further investigation. We performed a systematic review and a second-order meta-analysis to assess the abatement efficiency of N2O mitigation practices from agricultural soils. We used 27 meta-analyses including 41 effect sizes based on 1119 primary studies. Technology-driven solutions (e.g. enhanced-efficiency fertilizers, drip irrigation, and biochar) and optimization of fertilizer rate have considerable mitigation potential. Agroecological mitigation practices (e.g. organic fertilizer and reduced tillage), while potentially contributing to soil quality and carbon storage, may enhance N2O emissions and only lead to reductions under certain pedoclimatic and farming conditions. Other mitigation practices (e.g. lime amendment or crop residue removal) led to marginal N2O decreases. Despite the variable mitigation potential, evidencing the context-dependency of N2O reductions and tradeoffs, several mitigation practices may maintain or increase crop production, representing relevant alternatives for policymaking to reduce greenhouse gas emissions and safeguard food security.The land surface influences the atmospheric boundary layer (ABL) through its impacts on the partitioning of available energy into evaporation and warming. Previous research on understanding this complex link focused mainly on site-scale flux observations, gridded satellite observations, climate modeling, and machine-learning experiments. Observational evidence of land surface conditions, among which soil moisture, impacting ABL properties at intermediate landscape scales is lacking. Here, we use a combination of global weather balloon soundings, satellite-observed soil moisture, and a coupled land-atmosphere model to infer the soil moisture impact on the ABL. The inferred relationship between soil moisture and surface flux partitioning reflects distinctive energy- and water-limited regimes, even at the landscape scale. We find significantly different behavior between those two regimes, associating dry conditions with on average warmer (\uffe2\uff89\uff883\uffe2\uff80\uff89K), higher (\uffe2\uff89\uff88400\uffe2\uff80\uff89m) and drier (\uffe2\uff89\uff881\uffe2\uff80\uff89kPa) afternoon ABLs than wet conditions. This evidence of land\uffe2\uff80\uff93atmosphere coupling from globally distributed atmospheric measurements highlights the need for an accurate representation of land\uffe2\uff80\uff93atmosphere coupling into climate models and their climate change projections.

", "keywords": ["Atmospheric Science", "Global and Planetary Change", "Article ; Atmospheric dynamics ; Biogeochemistry ; Hydrology", "0207 environmental engineering", "02 engineering and technology", "15. Life on land", "01 natural sciences", "Environmental sciences", "13. Climate action", "Earth and Environmental Sciences", "Meteorology. Climatology", "Environmental Chemistry", "Life Science", "GE1-350", "QC851-999", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://www.nature.com/articles/s41612-021-00167-w.pdf"}, {"href": "https://doi.org/10.1038/s41612-021-00167-w"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/npj%20Climate%20and%20Atmospheric%20Science", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1038/s41612-021-00167-w", "name": "item", "description": "10.1038/s41612-021-00167-w", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1038/s41612-021-00167-w"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-03-03T00:00:00Z"}}, {"id": "10.1038/s43247-022-00523-5", "type": "Feature", "geometry": null, "properties": {"updated": "2026-06-24T16:18:28Z", "type": "Journal Article", "created": "2022-08-18", "title": "Ecoenzymatic stoichiometry reveals widespread soil phosphorus limitation to microbial metabolism across Chinese forests", "description": "Abstract

Forest soils contain a large amount of organic carbon and contribute to terrestrial carbon sequestration. However, we still have a poor understanding of what nutrients limit soil microbial metabolism that drives soil carbon release across the range of boreal to tropical forests. Here we used ecoenzymatic stoichiometry methods to investigate the patterns of microbial nutrient limitations within soil profiles (organic, eluvial and parent material horizons) across 181 forest sites throughout China. Results show that, in 80% of these forests, soil microbes were limited by phosphorus availability. Microbial phosphorus limitation increased with soil depth and from boreal to tropical forests as ecosystems become wetter, warmer, more productive, and is affected by anthropogenic nitrogen deposition. We also observed an unexpected shift in the latitudinal pattern of microbial phosphorus limitation with the lowest phosphorus limitation in the warm temperate zone (41-42\uffc2\uffb0N). Our study highlights the importance of soil phosphorus limitation to restoring forests and predicting their carbon sinks.Interactions between soil organic matter and minerals largely govern the carbon sequestration capacity of soils. Yet, variations in the proportions of free light (unprotected) and mineral-associated (protected) carbon as soil develops in contrasting ecosystems are poorly constrained. Here, we studied 16 long-term chronosequences from six continents and found that the ecosystem type is more important than soil age (centuries to millennia) in explaining the proportion of unprotected and mineral-associated carbon fractions in surface soils across global biomes. Soil carbon pools in highly productive tropical and temperate forests were dominated by the unprotected carbon fraction and were highly vulnerable to reductions in ecosystem productivity and warming. Conversely, soil carbon in low productivity, drier and colder ecosystems was dominated by mineral-protected carbon, and was less responsive to warming. Our findings emphasize the importance of conserving ecosystem productivity to protect carbon stored in surface soils.The permafrost active layer is a key supplier of soil organic carbon and mineral nutrients to Arctic rivers. In the active layer, sites of soil-water exchange are locations for organic carbon and nutrient mobilization. Previously these sites were considered as connected during summer months and isolated during winter months. Whether soil pore waters in active layer soils are connected during shoulder seasons is poorly understood. In this study, exceptionally heavy silicon isotope compositions in soil pore waters show that during late winter, there is no connection between isolated pockets of soil pore water in soils with a shallow active layer. However, lighter silicon isotope compositions in soil pore waters reveal that soils are biogeochemically connected for longer than previously considered in soils with a deeper active layer. We show that an additional 21% of the 0\uffe2\uff80\uff931\uffe2\uff80\uff89m soil organic carbon stock is exposed to soil - water exchange. This marks a hot moment during a dormant season, and an engine for organic carbon transport from active layer soils. Our findings mark the starting point to locate earlier pathways for biogeochemical connectivity, which need to be urgently monitored to quantify the seasonal flux of organic carbon released from permafrost soils.Numerical models are crucial to understand and/or predict past and future soil organic carbon dynamics. For those models aiming at prediction, validation is a critical step to gain confidence in projections. With a comprehensive review of ~250 models, we assess how models are validated depending on their objectives and features, discuss how validation of predictive models can be improved. We find a critical lack of independent validation using observed time series. Conducting such validations should be a priority to improve the model reliability. Approximately 60% of the models we analysed are not designed for predictions, but rather for conceptual understanding of soil processes. These models provide important insights by identifying key processes and alternative formalisms that can be relevant for predictive models. We argue that combining independent validation based on observed time series and improved information flow between predictive and conceptual models will increase reliability in predictions.Incomplete wildfire combustion in boreal forests leaves behind legacy plant-soil feedbacks known to restrict plant biodiversity. These restrictions can inhibit carbon recapture after fire by limiting ecosystem transition to vegetation growth patterns that are capable of offsetting warmth-enhanced soil decomposition under climate change. Here, we field-surveyed plant regrowth conditions 2 years after 49 separate, naturally-occurring wildfires spanning the near-entire climatic range of boreal Fennoscandia in order to determine the local to regional scale drivers of early vegetation recovery. Minimal conifer reestablishment was found across a broad range of fire severities, though residual organic soil and plant structure was associated with restricted growth of a variety of more warmth-adapted vegetation, such as broadleaf trees. This dual regeneration limitation coincided with greater concentrations of bacterial decomposers in the soil under increased mean annual temperature, potentially enhancing soil carbon release. These results suggest that large portions of the boreal region are currently at risk of extending postfire periods of net emissions of carbon to the atmosphere under limitations in plant biodiversity generated by wildfire and a changing climate.Uncertainty in desert dust composition poses a big challenge to understanding Earth\uffe2\uff80\uff99s climate across different epochs. Of particular concern is hematite, an iron-oxide mineral dominating the solar absorption by dust particles, for which current estimates of absorption capacity vary by over two orders of magnitude. Here, we show that laboratory measurements of dust composition, absorption, and scattering provide valuable constraints on the absorption potential of hematite, substantially narrowing its range of plausible values. The success of this constraint is supported by results from an atmospheric transport model compared with station-based measurements. Additionally, we identify substantial bias in simulating hematite abundance in dust aerosols with current soil mineralogy descriptions, underscoring the necessity for improved data sources. Encouragingly, the next-generation imaging spectroscopy remote sensing data hold promise for capturing the spatial variability of hematite. These insights have implications for enhancing dust modeling, thus contributing to efforts in climate change mitigation and adaptation.Anaerobic digestion (AD) of protein-rich grass silage was performed in experimental two-stage two-phase biogas reactor systems at low vs. increased organic loading rates (OLRs) under mesophilic (37\uffe2\uff80\uff89\uffc2\uffb0C) and thermophilic (55\uffe2\uff80\uff89\uffc2\uffb0C) temperatures. To follow the adaptive response of the biomass-attached cellulolytic/hydrolytic biofilms at increasing ammonium/ammonia contents, genome-centered metagenomics and transcriptional profiling based on metagenome assembled genomes (MAGs) were conducted.

Results

In total, 78 bacterial and archaeal MAGs representing the most abundant members of the communities, and featuring defined quality criteria were selected and characterized in detail. Determination of MAG abundances under the tested conditions by mapping of the obtained metagenome sequence reads to the MAGs revealed that MAG abundance profiles were mainly shaped by the temperature but also by the OLR. However, the OLR effect was more pronounced for the mesophilic systems as compared to the thermophilic ones. In contrast, metatranscriptome mapping to MAGs subsequently normalized to MAG abundances showed that under thermophilic conditions, MAGs respond to increased OLRs by shifting their transcriptional activities mainly without adjusting their proliferation rates. This is a clear difference compared to the behavior of the microbiome under mesophilic conditions. Here, the response to increased OLRs involved adjusting of proliferation rates and corresponding transcriptional activities. The analysis led to the identification of MAGs positively responding to increased OLRs. The most outstanding MAGs in this regard, obviously well adapted to higher OLRs and/or associated conditions, were assigned to the order Clostridiales (Acetivibrio sp.) for the mesophilic biofilm and the orders Bacteroidales (Prevotella sp. and an unknown species), Lachnospirales (Herbinix sp. and Kineothrix sp.) and Clostridiales (Clostridium sp.) for the thermophilic biofilm. Genome-based metabolic reconstruction and transcriptional profiling revealed that positively responding MAGs mainly are involved in hydrolysis of grass silage, acidogenesis and / or\uffc2\uffa0acetogenesis.

Conclusions

An integrated -omics approach enabled the identification of new AD biofilm keystone species featuring outstanding performance under stress conditions such as increased OLRs. Genome-based knowledge on the metabolic potential and transcriptional activity of responsive microbiome members will contribute to the development of improved microbiological AD management strategies for biomethanation of renewable biomass.

", "keywords": ["Integrated -omics", "Bioconversion", "0301 basic medicine", "570", "Polyomics", "Integrated-omics", "Biogas", "Microbiology", "7. Clean energy", "03 medical and health sciences", "Anaerobic digestion", "GE1-350", "2. Zero hunger", "0303 health sciences", "Metagenome assembled genomes", "Microbial community structure", "15. Life on land", "QR1-502", "6. Clean water", "3. Good health", "Environmental sciences", "Metagenome assembled genomes", " Integrated -omics", " Polyomics", " Anaerobic digestion", " Biogas", " Bioconversion", " Microbial community structure", " Methane", " Metabolic activity", "13. Climate action", "Metabolic activity", "Methane", "Research Article"]}, "links": [{"href": "http://link.springer.com/content/pdf/10.1186/s40793-020-00354-x.pdf"}, {"href": "https://doi.org/10.1186/s40793-020-00354-x"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Microbiome", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1186/s40793-020-00354-x", "name": "item", "description": "10.1186/s40793-020-00354-x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1186/s40793-020-00354-x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-03-02T00:00:00Z"}}, {"id": "10.1186/s40793-021-00386-x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-06-24T16:20:00Z", "type": "Journal Article", "created": "2021-08-26", "title": "Isoprene-degrading bacteria associated with the phyllosphere of Salix fragilis, a high isoprene-emitting willow of the northern hemisphere", "description": "AbstractBackground

Isoprene accounts for about half of total biogenic volatile organic compound emissions globally, and as a climate active gas it plays a significant and varied role in atmospheric chemistry. Terrestrial plants are the largest source of isoprene, with willow (Salix) making up one of the most active groups of isoprene producing trees. Bacteria act as a biological sink for isoprene and those bacteria associated with high isoprene-emitting trees may provide further insight into its biodegradation.

Results

A DNA-SIP experiment incubating willow (Salix fragilis) leaves with13C-labelled isoprene revealed an abundance ofComamonadaceae, Methylobacterium, MycobacteriumandPolaromonasin the isoprene degrading community when analysed by 16S rRNA gene amplicon sequencing. Metagenomic analysis of13C-enriched samples confirmed the abundance ofComamonadaceae, Acidovorax, Polaromonas, VariovoraxandRamlibacter. MycobacteriumandMethylobacteriumwere also identified after metagenomic analysis and aMycobacteriummetagenome-assembled genome (MAG) was recovered. This contained two complete isoprene degradation metabolic gene clusters, along with a propane monooxygenase gene cluster. Analysis of the abundance of the alpha subunit of the isoprene monooxygenase,isoA,in unenriched DNA samples revealed that isoprene degraders associated with willow leaves are abundant, making up nearly 0.2% of the natural bacterial community.

Conclusions

Analysis of the isoprene degrading community associated with willow leaves using DNA-SIP and focused metagenomics techniques enabled recovery of the genome of an active isoprene-degradingMycobacteriumspecies and provided valuable insight into bacteria involved in degradation of isoprene on the leaves of a key species of isoprene-emitting tree in the northern hemisphere.

", "keywords": ["Salix fragilis", "2. Zero hunger", "0301 basic medicine", "570", "0303 health sciences", "isoprene monooxygenase", "Isoprene", "Climate", "isoA", "15. Life on land", "Microbiology", "630", "QR1-502", "6. Clean water", "Environmental sciences", "03 medical and health sciences", "Willow tree", "13. Climate action", "Isoprene monooxygenase", "GE1-350", "willow tree", "isoprene", "climate", "DNA stable isotope probing", "Research Article"]}, "links": [{"href": "https://ueaeprints.uea.ac.uk/id/eprint/81258/1/Published_Version.pdf"}, {"href": "https://link.springer.com/content/pdf/10.1186/s40793-021-00386-x.pdf"}, {"href": "https://doi.org/10.1186/s40793-021-00386-x"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Microbiome", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1186/s40793-021-00386-x", "name": "item", "description": "10.1186/s40793-021-00386-x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1186/s40793-021-00386-x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-08-26T00:00:00Z"}}, {"id": "10.1186/s40793-020-00364-9", "type": "Feature", "geometry": null, "properties": {"updated": "2026-06-24T16:20:00Z", "type": "Journal Article", "created": "2020-05-01", "title": "Trichomes form genotype-specific microbial hotspots in the phyllosphere of tomato", "description": "Abstract

Background The plant phyllosphere is a well-studied habitat characterized by low nutrient availability and high community dynamics. In contrast, plant trichomes, known for their production of a large number of metabolites, are a yet unexplored habitat for microbes. We analyzed the phyllosphere as well as trichomes of two tomato genotypes (Solanum lycopersicum LA4024, S. habrochaites LA1777) by targeting bacterial 16S rRNA gene fragments.Results Leaves, leaves without trichomes, and trichomes alone harbored similar abundances of bacteria (108- 109 16S rRNA gene copy numbers per gram of sample). In contrast, bacterial diversity was found significantly increased in trichome samples (Shannon index: 4.4 vs. 2.5). Moreover, the community composition was significantly different when assessed with beta diversity analysis and corresponding statistical tests. At the bacterial class level, Alphaproteobacteria (23.6%) were significantly increased, whereas Bacilli (8.6%) were decreased in trichomes. The bacterial family Sphingomonadacea (8.4%) was identified as the most prominent, trichome-specific taxa; Burkholderiaceae and Actinobacteria showed similar pattern. Moreover, Sphingomonas was identified as a central element in the core microbiome of trichome samples, while distinct low-abundant bacterial families including Hymenobacteraceae and Alicyclobacillaceae were exclusively found in trichome samples. Niche preferences were statistically significant for both genotypes and genotype-specific enrichments were further observed.Conclusion Our results provide first evidence of a highly specific trichome microbiome in tomato and show the importance of micro-niches for the structure of bacterial communities on leaves. These findings provide further clues for breeding, plant pathology and protection as well as so far unexplored natural pathogen defense strategies.

", "keywords": ["0301 basic medicine", "2. Zero hunger", "Plant microhabitat", "0303 health sciences", "Plant microbiome", "Trichomes", "15. Life on land", "Microbiology", "Bacterial communities", "QR1-502", "Environmental sciences", "03 medical and health sciences", "Solanum lycopersicum", "Solanum habrochaites", "plant microbiome", " bacterial communities", " plant-microbe interactions", " Solanum habrochaites", " Solanum lycopersicum", " plant microhabitat", " phyllosphere", " trichomes", "GE1-350", "Phyllosphere", "Plant-microbe interactions", "Research Article"]}, "links": [{"href": "https://link.springer.com/content/pdf/10.1186/s40793-020-00364-9.pdf"}, {"href": "https://doi.org/10.1186/s40793-020-00364-9"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Microbiome", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1186/s40793-020-00364-9", "name": "item", "description": "10.1186/s40793-020-00364-9", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1186/s40793-020-00364-9"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-05-01T00:00:00Z"}}, {"id": "10.1186/s40793-021-00381-2", "type": "Feature", "geometry": null, "properties": {"updated": "2026-06-24T16:20:00Z", "type": "Journal Article", "created": "2021-02-10", "title": "Soil, senescence and exudate utilisation: characterisation of the\u00a0Paragon var. spring bread wheat root microbiome", "description": "Abstract

Conventional methods of agricultural pest control and crop fertilisation are contributing to a crisis of biodiversity loss, biogeochemical cycle dysregulation, and ecosystem collapse. Thus, we must find ecologically responsible means to control disease and promote crop yields. The root-associated microbiome may contribute to this goal as microbes can aid plants with disease suppression, abiotic stress relief, and nutrient bioavailability. We applied 16S rRNA gene & fungal 18S rRNA gene (ITS2 region) amplicon sequencing to profile the diversity of the bacterial, archaeal & fungal communities associated with the roots of UK elite spring bread wheat varietyTriticum aestivum var.Paragon in different soils and developmental stages. This revealed that community composition shifted significantly for all three groups across compartments. This shift was most pronounced for bacteria and fungi, while we observed weaker selection on the ammonia oxidising archaea-dominated archaeal community. Across multiple soil types we found that soil inoculum was a significant driver of endosphere community composition, however several bacterial families were identified as core enriched taxa in all soil conditions. The most abundant of these wereStreptomycetaceaeandBurkholderiaceae.Moreover, as the plants senesce, both families were reduced in abundance, indicating that input from the living plant was required to maintain their abundance in the endosphere. To understand which microbes are using wheat root exudates in the rhizosphere, root exudates were labelled in a13CO2DNA stable isotope probing experiment. This shows that bacterial taxa within theBurkholderiaceaefamily among other core enriched taxa, such asPseudomonadaceae,were able to use root exudates butStreptomycetaceaewere not. Overall, this work provides a better understanding of the wheat microbiome, including the endosphere community. Understanding crop microbiome formation will contribute to ecologically responsible methods for yield improvement and biocontrol in the future.

", "keywords": ["2. Zero hunger", "0301 basic medicine", "570", "0303 health sciences", "Exudate", "15. Life on land", "Senescence", "Microbiology", "630", "QR1-502", "Environmental sciences", "03 medical and health sciences", "Root", "Wheat", "GE1-350", "Microbiome", "Endosphere", "Research Article"]}, "links": [{"href": "http://oro.open.ac.uk/77831/1/40793_2021_Article_381.pdf"}, {"href": "https://ueaeprints.uea.ac.uk/id/eprint/80327/1/Published_Version.pdf"}, {"href": "https://link.springer.com/content/pdf/10.1186/s40793-021-00381-2.pdf"}, {"href": "https://doi.org/10.1186/s40793-021-00381-2"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Microbiome", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1186/s40793-021-00381-2", "name": "item", "description": "10.1186/s40793-021-00381-2", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1186/s40793-021-00381-2"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-02-09T00:00:00Z"}}, {"id": "10.1088/1748-9326/acd709", "type": "Feature", "geometry": null, "properties": {"updated": "2026-06-24T16:18:59Z", "type": "Journal Article", "created": "2023-05-19", "title": "Fertilization strategies for abating N pollution at the scale of a highly vulnerable and diverse semi-arid agricultural region (Murcia, Spain)", "description": "Abstract

Overuse of N fertilizers in crops has induced the disruption of the N cycle, triggering the release of reactive N (Nr) to the environment. Several EU policies have been developed to address this challenge, establishing targets to reduce agricultural Nr losses. Their achievement could be materialized through the introduction of fertilizing innovations such as incorporating fertilizer into soils, using urease inhibitors, or by adjusting N inputs to crop needs that could impact in both yields and environment. The Murcia region (southeastern Spain) was selected as a paradigmatic case study, since overfertilization has induced severe environmental problems in the region in the last decade, to assess the impact of a set of 8 N fertilizing alternatives on crop yields and environmental Nr losses. Some of these practices imply the reduction of N entering in crops. We followed an integrated approach analyzing the evolution of the region in the long-term (1860\uffe2\uff80\uff932018) and considering nested spatial- (from grid to region) and systems scales (from crops to the full agro-food system). We hypothesized that, even despite reduction of N inputs, suitable solutions for the abatement of Nr can be identified without compromising crop yields. The most effective option to reduce Nr losses was removing synthetic N fertilizers, leading to 75% reductions in N surpluses mainly due to a reduction of 64% of N inputs, but with associated yield penalties (31%\uffe2\uff80\uff9335%). The most feasible alternative was the removal of urea, resulting in 19% reductions of N inputs, 15%\uffe2\uff80\uff9321% declines in N surplus, and negligible yield losses. While these measures are applied at the field scale, their potential to produce a valuable change can only be assessed at regional scale. Because of this, a spatial analysis was performed showing that largest Nr losses occurred in irrigated horticultural crops. The policy implications of the results are discussed.Plastic pollution in terrestrial environments is a global issue due to its adverse effects on soil health, with negative impacts on ecosystem services and food production. However, the enormous heterogeneity of both plastic and soil characteristics complicate the assessment of the impact and overall trends in plastic-induced changes in soil properties beyond experimental conditions. In this work, we have carried out a systematic and in-depth review of the existing literature on the impact of plastics on soil physical properties. To this end, we have quantified the effects of macro- (MaP, >5000 \uffce\uffbcm) and micro-plastics (MiP, <5000 \uffce\uffbcm) on soil bulk density, soil porosity, water-stable aggregates (WSAs), saturated hydraulic conductivity, and soil moisture at field capacity (FC), based on four characteristics of plastics: polymer types, shapes and sizes of plastic particles, and plastic concentrations in soil. Results showed that MaPs and MiPs significantly modified the values of the analyzed soil physical properties compared to the control without plastic in over 50% of the experimental dataset, albeit with a large variability, from a reduction to an increase in values, depending on the specific experimental conditions and the soil physical property. Depending on the plastic concentration, soil bulk density and porosity decreased moderately (4%\uffe2\uff80\uff936%) with MiP and MaP. MiP reduced WSA by an average of 20%, ranging from a 40% decrease to a 20% increase depending on the shapes and concentration of MiP. Saturated hydraulic conductivity changed depending on the polymer types, shapes, and concentrations of MaP and MiP, varying from a 70% decrease to a 40% increase. Soil water content at FC varied depending on the soil texture, and concentration and sizes distribution of conventional MiP, decreasing from 10% to 65%. However, biodegradable plastic increased soil water content at FC. The few studies available provide evidence that not enough attention is being paid to soil physical properties influenced by plastic input. It is recommended to consider the wide range of characteristics of MaP and MiP and their effects on soil physical properties in future studies, for an advance understanding of the impact of MiP and MaP on soil health in the medium-long term under different environmental conditions.Energy geostructures (EG) are an innovative technology in the sustainable energy agenda that can be used to satisfy the heating and cooling needs of the built environment. EGs include several types of geostructures such as piles, walls, tunnels, shafts, sewers. The application of this technology to infrastructure projects is particularly interesting because of the important thermal potential offered by the large surfaces that can be thermally-activated. This study deals with thermo-active walls (Energy walls, EW), which are retaining structures used to sustain the sides of excavations. Aspects related to the hydro-thermal interactions and to the thermal design are here presented. Finally, the testing setup for the execution of a thermal response test on a recently-built EW in western Switzerland is discussed.

", "keywords": ["Environmental sciences", "9. Industry and infrastructure", "13. Climate action", "11. Sustainability", "0211 other engineering and technologies", "GE1-350", "02 engineering and technology", "7. Clean energy"]}, "links": [{"href": "https://www.e3s-conferences.org/10.1051/e3sconf/20199218011/pdf"}, {"href": "https://doi.org/10.1051/e3sconf/20199218011"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/E3S%20Web%20of%20Conferences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1051/e3sconf/20199218011", "name": "item", "description": "10.1051/e3sconf/20199218011", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1051/e3sconf/20199218011"}, {"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": "10.1051/e3sconf/20199809012", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-06-24T16:18:36Z", "type": "Journal Article", "created": "2019-06-07", "title": "Dissolved fluoride removal by OCP, a precursor of apatite", "description": "

The consumption of water with fluoride concentration higher than 1.5 mg/L (WHO recommended limit) is recognized to cause serious diseases. Fluoride removal from natural contaminated waters is a worldwide priority for more than 200 million people. The octacalcium phosphate (OCP), a mineralogical precursor of bio-apatite, is here tested as a fluoride remover. A new two-step method for the synthesis of OCP is proposed; it consists of 1) synthesis of brushite from calcium carbonate and phosphoric acid and, 2) subsequent hydrolysis of brushite. Fluoride removal experiments were performed in batch-mode using 200 mg of OCP in 50 ml solutions with different initial concentrations of fluoride (from 40 to 140 mg/L). Most of fluoride is removed within the first two hours, whereas the WHO limit of 1.5 mg/L is reached within a minimum of 3 hours for a starting Fconcentration of 40 mg/L, and in about 12 hours for a starting F-concentration of 80 mg/L. One gram of OCP can remove up to 26 mg of fluoride. The pH of the solution after the treatment is within the range of drinking water. XRD characterization of the solid phases, before and after the experiments, indicates that OCP transforms into fluorapatite via Fremoval from solution.

", "keywords": ["Environmental sciences", "GE1-350", "01 natural sciences", "6. Clean water", "0105 earth and related environmental sciences", "3. Good health"]}, "links": [{"href": "https://iris.unica.it/bitstream/11584/272219/1/e3sconf_wri-162018_09012.pdf"}, {"href": "https://www.e3s-conferences.org/10.1051/e3sconf/20199809012/pdf"}, {"href": "https://doi.org/10.1051/e3sconf/20199809012"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/E3S%20Web%20of%20Conferences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1051/e3sconf/20199809012", "name": "item", "description": "10.1051/e3sconf/20199809012", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1051/e3sconf/20199809012"}, {"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": "10.1051/e3sconf/20199202016", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-06-24T16:18:36Z", "type": "Journal Article", "created": "2019-06-25", "title": "The effect of clay water content in the Jet Erosion Test", "description": "

The understanding of the onset of breaching induced by surface erosion is fundamental to enable definition of the level of protection afforded by embankments and provision of standards for the design of new structures and the upgrading of existing ones. Compacted embankment materials are generally partially saturated due to seasonal variation in the water content. At the onset of the overflow process embankments undergo to a wetting process due to the changes at the outer surface boundary conditions (i.e. overflow). Erosion behaviour is known to be a counterbalance between gravity forces and shear erosion forces. However, as the particle size decreases (i.e. clayey soils), gravitational forces become negligible and electrochemical interaction between particles play a dominant role. Clay microstructure (e.g. particle configuration and inter-particle forces) changes with the hydro-mechanical stresses history. Thus, it is necessary to consider the microstructural changes in particle configuration to understand the influence of microstructure on the macroscopic behaviour of clay during erosion. Upon wetting, clay have a swelling/collapse behaviour. This research presents experimental results on erosion of clay samples compacted at the same initial dry density but with different compaction water content. The influence of different wetting times on erosion is also investigated. We show that for a given as-compacted water content, the longer the wetting stage, and hence the higher the sample water content, the more erodible the samples. Additionally, for samples compacted at the same dry density, the ones compacted on the dry side of optimum are more erodible than samples compacted at the optimum water content, despite the lower water content at formation. We hypothesise that this may be due to the formation of a different initial microstructure in sample on the dry side of optimum (i.e. bi-modal pore size distribution). Our results contribute to the fundamental understanding of time-dependent mechanisms that influence erosion of clay embankments during overflow and, hence, to embankment failure. In addition, these tests show how basic concepts of unsaturated soil mechanics can serve as a guide to \uffe2\uff80\uff98design\uffe2\uff80\uff99 the compaction conditions of embankment material.

", "keywords": ["Environmental sciences", "791", "TA", "0211 other engineering and technologies", "GE1-350", "02 engineering and technology", "Engineering (General). Civil engineering (General)", "6. Clean water"]}, "links": [{"href": "https://strathprints.strath.ac.uk/68941/1/Beber_etal_E3S_The_effect_of_clay_water_content_in_the_Jet_Erosion_Test.pdf"}, {"href": "https://www.e3s-conferences.org/10.1051/e3sconf/20199202016/pdf"}, {"href": "https://doi.org/10.1051/e3sconf/20199202016"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/E3S%20Web%20of%20Conferences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1051/e3sconf/20199202016", "name": "item", "description": "10.1051/e3sconf/20199202016", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1051/e3sconf/20199202016"}, {"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": "10.1051/e3sconf/20199206003", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-06-24T16:18:36Z", "type": "Journal Article", "created": "2019-06-25", "title": "Critical State Lines of Portuguese liquefiable sands", "description": "

The Critical State framework has been used to describe the behaviour of sands and study the liquefaction susceptibility of these soils when sheared in static and cyclic conditions. The ocean coast and some fluvial basins of Portugal are characterised by the presence of sandy deposits that, combined with a moderate to high seismic activity, creates the conditions for moderate to high liquefaction susceptibility. The aim of this work is to study and compare five Portuguese liquefiable alluvial sands, collected in the centre-south of the continental territory. The experimental programme included a complete physical identification of the five materials and a series of triaxial tests in drained conditions. The specimens were prepared at a high initial void ratio (loose), using the moist-tamping technique with an appropriate initial water content, reaching void ratios close or slightly higher than emax. The specimens were fully saturated, isotropically consolidated and statically sheared at constant strain rate until reaching the critical state. Shear wave velocities after consolidation were measured using bender elements. The critical state and small-strain stiffness parameters are discussed and compared, evidencing the differences between these soils. Relationships between some of these parameters and physical characteristics are obtained.

", "keywords": ["Environmental sciences", "0211 other engineering and technologies", "GE1-350", "02 engineering and technology", "14. Life underwater"]}, "links": [{"href": "https://www.e3s-conferences.org/10.1051/e3sconf/20199206003/pdf"}, {"href": "https://doi.org/10.1051/e3sconf/20199206003"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/E3S%20Web%20of%20Conferences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1051/e3sconf/20199206003", "name": "item", "description": "10.1051/e3sconf/20199206003", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1051/e3sconf/20199206003"}, {"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": "10.1051/e3sconf/20199207011", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-06-24T16:18:36Z", "type": "Journal Article", "created": "2019-06-25", "title": "An experimental investigation on the water retention behaviour of a silty soil for the computation of the lateral earth thrust on a retaining wall", "description": "

Retaining structures often interact with soils in unsaturated conditions and their performance is influenced by environmental actions. Currently, geotechnical analysis and design approaches mainly consider the soils either totally dry or totally saturated. Environmental actions, like infiltration due to rainfall, can significantly affect the lateral earth pressure of soils, influencing the performance of both temporary or permanent retaining structures. This paper deals with the investigation of the water retention behaviour of a silty soil for the computation of the soil thrust on a retaining wall during rainfall events. In this regard, the retention property of the involved geomaterial is investigated in laboratory through the combined use of high capacity tensiometers (HCT) and a dew-point hygrometer (WP4C). Considering drying and wetting paths, the experimental results are employed to calibrate the water retention behaviour for the computation of the failure shear strength of the geomaterial. The importance to monitor volume change during the characterization of the water retention behaviour of fine soils is highlighted. A series of analytical uncoupled hydro-mechanical analyses is performed to estimate the changing in the thrust of an unsaturated soil on a retaining wall under several infiltration rates. An appropriate modelling of the soil water retention behaviour is resulted to be crucial for the computation of lateral earth thrust.

", "keywords": ["Environmental sciences", "0211 other engineering and technologies", "GE1-350", "02 engineering and technology", "15. Life on land", "6. Clean water"]}, "links": [{"href": "https://www.e3s-conferences.org/10.1051/e3sconf/20199207011/pdf"}, {"href": "https://doi.org/10.1051/e3sconf/20199207011"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/E3S%20Web%20of%20Conferences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1051/e3sconf/20199207011", "name": "item", "description": "10.1051/e3sconf/20199207011", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1051/e3sconf/20199207011"}, {"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": "10.1051/e3sconf/20199208002", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-06-24T16:18:36Z", "type": "Journal Article", "created": "2019-06-25", "title": "The effect of confinement in liquefaction tests carried out in a cyclic simple shear apparatus", "description": "

The cyclic simple shear tests can be used to reproduce in laboratory the complex behaviour of the soil during an earthquake, simulating the continuous rotation of the principal stress axes. In this research a comparison of results between cyclic simple shear tests carried out with confining pressure or confining rings is reported. A cyclic simple shear apparatus is used to carry out tests with confining rings (the conventional way to carry out cyclic simple shear tests) and with a confining pressure applied to the specimen through pressurized water, where the K0 condition during consolidation is guaranteed by a sophisticated control system. The apparatus, in both the configurations, is described in detail. All tests were carried out on reconstituted specimens of an Italian sand with similar initial conditions, such as low relative density and confining pressure. All experimental results are reported in the plane cyclic stress ratio (CSR) and number of cycles where liquefaction occurs (Nliq) in order to evaluate the effect of confinement on the liquefaction resistance of the studied sand.

", "keywords": ["Environmental sciences", "Shear test", " Simple shear", "Shear test", "0211 other engineering and technologies", "GE1-350", "02 engineering and technology", "Simple shear"]}, "links": [{"href": "https://www.e3s-conferences.org/10.1051/e3sconf/20199208002/pdf"}, {"href": "https://doi.org/10.1051/e3sconf/20199208002"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/E3S%20Web%20of%20Conferences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1051/e3sconf/20199208002", "name": "item", "description": "10.1051/e3sconf/20199208002", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1051/e3sconf/20199208002"}, {"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": "10.1051/e3sconf/20199211017", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-06-24T16:18:36Z", "type": "Journal Article", "created": "2019-06-25", "title": "Preliminary observations of the shear behaviour of fungal treated soil", "description": "

This paper presents results of an investigation into an entirely novel technique for ground improvement involving the use of fungal hyphae. Fungal hyphae (long filamentous branches) are known to contribute to soil aggregation and soil hydrophobicity, and are hypothesised to also influence the hydro-mechanical behaviour of soil. We present here preliminary observations of the mechanical behaviour of sands treated with the fungal species Pleurotus ostreatus (P. ostreatus). Direct shear tests were carried out on sand containing different percentages of organic substrate (the nutrient source for fungal growth) and treated with P. ostreatus. The stress-strain behaviour of fungal treated and untreated soil was investigated. Results show that irrespective of the percentage of organic matter, fungal treated specimens tended to show a loss in the peak behaviour characteristic of the untreated control specimens and an associated transition towards a more contractive volumetric response. The limited experiments conducted to date appear to indicate that the main factor responsible for the differences in behaviour between treated and untreated specimens is due to lubrication of the grains by the fungal hyphae and exudates. Further investigation is required to fully elucidate the mechanisms influencing the mechanical behaviour of fungal-treated soils.

", "keywords": ["Environmental sciences", "570", "Environmental engineering", "TA170", "0401 agriculture", " forestry", " and fisheries", "GE1-350", "04 agricultural and veterinary sciences", "15. Life on land"]}, "links": [{"href": "https://strathprints.strath.ac.uk/69026/1/Salifu_El_Mountassir_E3S_2019_Preliminary_observations_of_the_shear_behaviour_of_fungal_treated_soil.pdf"}, {"href": "https://www.e3s-conferences.org/10.1051/e3sconf/20199211017/pdf"}, {"href": "https://doi.org/10.1051/e3sconf/20199211017"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/E3S%20Web%20of%20Conferences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1051/e3sconf/20199211017", "name": "item", "description": "10.1051/e3sconf/20199211017", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1051/e3sconf/20199211017"}, {"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": "10.1051/e3sconf/20199212013", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-06-24T16:18:36Z", "type": "Journal Article", "created": "2019-06-25", "title": "Timber sheet pile-vegetation model for stream bank retaining structure", "description": "

Timber sheet piles are widely used to protect canal and stream banks. Quite often, riparian vegetation also grows along these retaining structures. Roots of riparian vegetation mechanically reinforce the soil with their root systems. A timber sheetpile- vegetation model is developed taking into account the mechanical reinforcement of the vegetation roots. The model uses easy to obtain physical parameters, which makes it suitable to have a preliminary estimate of how the forces on the bio engineered structure would evolve.

", "keywords": ["Environmental sciences", "Timber", " vegetation", " stream bank", "GE1-350", "15. Life on land", "01 natural sciences", "0105 earth and related environmental sciences"], "contacts": [{"organization": "Abhijith Kamath, W.F. Gard, Jan-Willem G. van de Kuilen, Jan-Willem G. van de Kuilen,", "roles": ["creator"]}]}, "links": [{"href": "https://www.e3s-conferences.org/10.1051/e3sconf/20199212013/pdf"}, {"href": "https://doi.org/10.1051/e3sconf/20199212013"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/E3S%20Web%20of%20Conferences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1051/e3sconf/20199212013", "name": "item", "description": "10.1051/e3sconf/20199212013", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1051/e3sconf/20199212013"}, {"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": "10.1051/e3sconf/20199212014", "type": "Feature", "geometry": null, "properties": {"updated": "2026-06-24T16:18:36Z", "type": "Journal Article", "created": "2019-06-25", "title": "Multi-scale effects on the hydraulic behaviour of a root-permeated and compacted soil", "description": "

While roots have been generally proved to be beneficial to soil mechanical behaviour, different and counterposed results have been found when investigating their effects on soil hydraulic response. Roots affect the hydro-mechanical and chemical properties of soils at different scales. In this regard, the paper focuses on studying the macroscopic hydraulic properties of root-permeated and compacted soils considering microstructural features coming from mercury intrusion porosimetry and X-ray micro-tomography. The results are interpreted bearing in mind the influence of the different soil hydraulic states on roots structure and physiology. The analysis of the results shows that roots growing in a compacted soil at low stresses are opening fissures while decreasing micropore volume inside aggregates due to chemical effects. This response has important effects on the hydraulic behaviour of the soil.

", "keywords": ["0106 biological sciences", "[SDV.BID.SPT]Life Sciences [q-bio]/Biodiversity/Systematics", "550", "0211 other engineering and technologies", "Soil hydraulic", "02 engineering and technology", "01 natural sciences", "[SDV.BV.BOT] Life Sciences [q-bio]/Vegetal Biology/Botanics", "[SDV.BID.SPT] Life Sciences [q-bio]/Biodiversity/Systematics", " Phylogenetics and taxonomy", "[SDV.EE.ECO] Life Sciences [q-bio]/Ecology", " environment/Ecosystems", "GE1-350", "Soil compaction", "\u00c0rees tem\u00e0tiques de la UPC::Enginyeria civil::Geot\u00e8cnia::Mec\u00e0nica de s\u00f2ls", "621", "Phylogenetics and taxonomy", "[SDV.BV.BOT]Life Sciences [q-bio]/Vegetal Biology/Botanics", "Roots", "6. Clean water", "[SDE.BE] Environmental Sciences/Biodiversity and Ecology", "Environmental sciences", "S\u00f2ls -- Compactaci\u00f3", "[SDV.EE.ECO]Life Sciences [q-bio]/Ecology", "[SDE.BE]Environmental Sciences/Biodiversity and Ecology", "environment/Ecosystems", ":Enginyeria civil::Geot\u00e8cnia::Mec\u00e0nica de s\u00f2ls [\u00c0rees tem\u00e0tiques de la UPC]", "Macroscopic hydraulic properties"]}, "links": [{"href": "https://www.e3s-conferences.org/10.1051/e3sconf/20199212014/pdf"}, {"href": "https://doi.org/10.1051/e3sconf/20199212014"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/E3S%20Web%20of%20Conferences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1051/e3sconf/20199212014", "name": "item", "description": "10.1051/e3sconf/20199212014", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1051/e3sconf/20199212014"}, {"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": "10.1051/e3sconf/20199904008", "type": "Feature", "geometry": null, "properties": {"updated": "2026-06-24T16:18:36Z", "type": "Journal Article", "created": "2019-06-18", "title": "The WMO SDS-WAS Regional Center for Northern Africa, Middle East and Europe", "description": "

Sand and dust storms (SDS) are an important threat to life, health, property, environment and economy in many countries, and play a significant role in different aspects of weather, climate and atmospheric chemistry. There is an increasing need for SDS accurate information and predictions to support early warning systems, and preparedness and mitigation plans. The present contribution introduces the current activities of the Regional Center for Northern Africa, Middle East and Europe of the WMO Sand and Dust Storm Warning Advisory and Assessment System (SDS-WAS). The Center has the mission is to enhance the ability of countries in the region to deliver timely and quality SDS forecasts, observations, information and knowledge to users through an international partnership of research and operational communities.

", "keywords": ["Environmental sciences", "Dust forecasts", "13. Climate action", "Sand and dust storm", "11. Sustainability", "GE1-350", "Desert dust", "01 natural sciences", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://www.e3s-conferences.org/10.1051/e3sconf/20199904008/pdf"}, {"href": "https://doi.org/10.1051/e3sconf/20199904008"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/E3S%20Web%20of%20Conferences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1051/e3sconf/20199904008", "name": "item", "description": "10.1051/e3sconf/20199904008", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1051/e3sconf/20199904008"}, {"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": "10.1051/e3sconf/202017604002", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-06-24T16:18:36Z", "type": "Journal Article", "created": "2020-06-22", "title": "Soil organic carbon sequestration according to two Geoset long-term field experiments in the Moscow region", "description": "

The feasibility of implementing the '4 ppm' initiative, which assumes an annual increase in organic carbon stocks of agricultural soils in the layer 0-40 cm, was estimated with the dynamic carbon model RothC in two long-term DAOS experiments in the Moscow region, conducted in neighbouring fields for 74 and 76 years. Treatments included absolute control, application of organic, mineral, organic and mineral fertilizers at increasing rates. One of the experiments showed the growth of C stocks 12\u2030 in the layer 0-20 cm in the first 20 years in treatments with mineral fertilization, and 17\u2030 with the additional application of manure in an average annual rate of 10 Mg\u00b7ha-1. The accumulation of C allowed increasing its stock by 18-25%. Still, with the subsequent decline in crop rotation productivity, there was a loss of part of the previously accumulated C. In another experiment, at close values of annual C input, there was a loss of initial C stock due to the history of land use. The crop rotation adjustment provided a 3-8 \u2030 increase of soil C in the 0-20 cm layer in the first 20 years after introduction but was insufficient to match the '4 ppm' initiative. In the long term, the organic fertilizer system had an advantage over the mineral one in ensuring the stability of organic C stocks in the arable layer. However, the management of C sequestration was complicated in the non-equilibrium state of the carbon system 'plant residues-organic fertilizer-soil'.

", "keywords": ["Environmental sciences", "2. Zero hunger", "0401 agriculture", " forestry", " and fisheries", "GE1-350", "04 agricultural and veterinary sciences", "15. Life on land", "6. Clean water"]}, "links": [{"href": "https://www.e3s-conferences.org/10.1051/e3sconf/202017604002/pdf"}, {"href": "https://doi.org/10.1051/e3sconf/202017604002"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/E3S%20Web%20of%20Conferences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1051/e3sconf/202017604002", "name": "item", "description": "10.1051/e3sconf/202017604002", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1051/e3sconf/202017604002"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-01-01T00:00:00Z"}}, {"id": "10.1051/e3sconf/202019503041", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-06-24T16:18:36Z", "type": "Journal Article", "created": "2020-10-16", "title": "Fall cone test on biopolymer-treated clay", "description": "

Fall cone tests were conducted to evaluate the consistency variations of clay soils treated with six types of biopolymers, e.g. carrageenan kappa gum (KG), locust bean gum (BG), xanthan gum (XG), agar gum (AG), guar gum (GG) and sodium alginate (SA) at various concentrations (e.g. between 0.1% to 5% biopolymer to soil mass ratio). The dependences of shear viscosity on water content, and undrained shear strength on water content were established. The results indicated that KG and SA increased the liquid limit (LL) of treated soils after the biopolymer content exceeded a certain limit (e.g. 0.5%), BG and GG contributed to a peak point in LL at biopolymer concentration of 1% to 2%, while XG and AG almost did not change the LL at all. The plastic limit (PL) was about 25% to 50% of the LL, leading to a trend of plasticity index (PI) similar to liquid limit. In order to further simplify the testing procedure and get the Atterberg limits for biopolymer-treated soil, one-point method was adopted.

", "keywords": ["Environmental sciences", "TP", "TA", "0211 other engineering and technologies", "GE1-350", "02 engineering and technology", "6. Clean water"], "contacts": [{"organization": "Zhanbo, Cheng, Jing, Ni, Haotian, Ding, Xueyu, Geng,", "roles": ["creator"]}]}, "links": [{"href": "http://wrap.warwick.ac.uk/149214/7/WRAP-Fall-cone-test-biopolymer-treated-clay-2020.pdf"}, {"href": "https://www.e3s-conferences.org/10.1051/e3sconf/202019503041/pdf"}, {"href": "https://doi.org/10.1051/e3sconf/202019503041"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/E3S%20Web%20of%20Conferences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1051/e3sconf/202019503041", "name": "item", "description": "10.1051/e3sconf/202019503041", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1051/e3sconf/202019503041"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-01-01T00:00:00Z"}}, {"id": "10.1051/e3sconf/202019505007", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-06-24T16:18:36Z", "type": "Journal Article", "created": "2020-10-16", "title": "Benefits and drawbacks of applied direct currents for soil improvement via carbonate mineralization", "description": "

The study presented herein adopts a new vision of the processes involved in carbonate mineralization induced by MICP from an electrochemical and crystal growth perspective. More precisely a specific line of focus refers to the species involved in the bio-chemical reactions and especially their net particle charge. By altering electro-chemical conditions via the application of direct electric currents, we observe distinctive trends related to: (i) overall reaction efficiency; (ii) carbonate mineralization/dissolution and (iii) spatial distribution of precipitates. The study introduces the concept of EA-MICP which stands for Electrically Assisted MICP as a means of improving the efficiency of soil bio-consolidation and overcoming various challenges which were previously reported in conventional MICP-based works. Results reveal both the detrimental and highly beneficial role that electric currents can hold in the complex, reactive and transport processes involved. An interesting finding is the \u201cdoped\u201d morphology of calcite crystals, precipitated under electric fields, validated by microstructural observations.

", "keywords": ["Environmental sciences", "0211 other engineering and technologies", "GE1-350", "02 engineering and technology", "6. Clean water"]}, "links": [{"href": "https://www.e3s-conferences.org/10.1051/e3sconf/202019505007/pdf"}, {"href": "https://doi.org/10.1051/e3sconf/202019505007"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/E3S%20Web%20of%20Conferences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1051/e3sconf/202019505007", "name": "item", "description": "10.1051/e3sconf/202019505007", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1051/e3sconf/202019505007"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-01-01T00:00:00Z"}}, {"id": "10.1051/e3sconf/202233408003", "type": "Feature", "geometry": null, "properties": {"updated": "2026-06-24T16:18:36Z", "type": "Journal Article", "created": "2022-01-10", "title": "Assessing the effect of the electrode orientation on the performance of soil microbial fuel cells", "description": "

Soil microbial fuel cells (SMFCs) are a sub-class of the microbial fuel cells family, in which the soil acts as the electrolyte, and as the source of microorganisms and organic fuel. Given the great simplicity of the system design, SMFCs show a promising avenue for energy generation in remote areas. In this study, we investigate the influence that geometrical factors, such as the electrode orientation, have on the electrochemical performance of SMFCs. Two types of electrode orientations: horizontal and vertical, were tested. Additionally, the influence of anode and cathode immersion in soil was explored too. Our results demonstrate that vertical positioning of the cathode in soil is not a viable option. The increase in cathodic immersion leads to a more rapid performance decay, attributed to more anaerobic conditions along soil\u2019s depth. The increase in anode immersion has a positive effect on the evolution of the negative electrode potential. However, with the increase in electrode spacing, the performance drops due to a greater internal resistance.

", "keywords": ["Environmental sciences", "0202 electrical engineering", " electronic engineering", " information engineering", "GE1-350", "02 engineering and technology", "7. Clean energy", "6. Clean water"]}, "links": [{"href": "https://www.e3s-conferences.org/10.1051/e3sconf/202233408003/pdf"}, {"href": "https://doi.org/10.1051/e3sconf/202233408003"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/E3S%20Web%20of%20Conferences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1051/e3sconf/202233408003", "name": "item", "description": "10.1051/e3sconf/202233408003", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1051/e3sconf/202233408003"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-01-01T00:00:00Z"}}, {"id": "10.1051/e3sconf/202233408004", "type": "Feature", "geometry": null, "properties": {"updated": "2026-06-24T16:18:36Z", "type": "Journal Article", "created": "2022-01-10", "title": "Minimalistic soil microbial fuel cells for bioremediation of recalcitrant pollutants", "description": "

Increased human, agricultural and industrial activities along with improper waste disposal leads to high levels of soil contamination and accumulation of recalcitrant contaminants in the environment. This global issue demands the use of green and sustainable technologies and soil microbial fuel cells (SMFC) can be a potential solution. We adopted minimalistic designs, based on low-cost carbon materials without any expensive catalyst and membrane, which makes the SMFCs suitable for in-field applications. We investigated the ability of the indigenous microbial population of the soil to use organic contaminants as the source of carbon and the enrichment of the electroactive consortium was monitored over time onto the electrode surface of the SMFCs. We tested performance in soil contaminated with pesticide and soil contaminated with hydrocarbons and compare the microbial enrichment process with respect to the case of non-contaminated soil.

", "keywords": ["Environmental sciences", "13. Climate action", "0211 other engineering and technologies", "GE1-350", "02 engineering and technology", "7. Clean energy", "01 natural sciences", "6. Clean water", "3. Good health", "12. Responsible consumption", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1051/e3sconf/202233408004"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/E3S%20Web%20of%20Conferences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1051/e3sconf/202233408004", "name": "item", "description": "10.1051/e3sconf/202233408004", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1051/e3sconf/202233408004"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-01-01T00:00:00Z"}}, {"id": "10.1051/e3sconf/202233408006", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-06-24T16:18:36Z", "type": "Journal Article", "created": "2022-01-10", "title": "Versatile Bioelectrochemical system for heavy metals removal", "description": "

Industrial activity has resulted in heavy metals anthropogenic contamination of groundwater, especially in industrial or mining areas. Bioelectrochemical systems (BES) can be used for metals removal and recovery from aqueous solutions. In the framework of GREENER project, double-chamber BES have been adopted to treat groundwater from industrial sites containing copper, nickel and zinc (Cu, Ni and Zn), among other contaminants. Two operation modes, (i) short-circuited microbial fuel cell (MFC), and (ii) power supply driven microbial electrolysis cell (MEC, poisoning the cathode at -0.4 V vs. Ag/AgCl), were studied for metals removal at lab-scale. Two control reactors were run to evaluate metals adsorption on cathodes and membranes, and the effect of anolyte composition. Synthetic water containing different concentrations of Cu, Ni and Zn were treated, and metals removal pathways were studied. MEC and MFC performed similarly and the highest removal efficiencies were 97.1\u00b13.6%, 50.7\u00b16% and 74,5% for Cu, Ni and Zn respectively, from initial concentrations in the range of 1.1-1.5 mM.

", "keywords": ["Environmental sciences", "13. Climate action", "0211 other engineering and technologies", "GE1-350", "02 engineering and technology", "01 natural sciences", "6. Clean water", "0104 chemical sciences"]}, "links": [{"href": "https://www.e3s-conferences.org/10.1051/e3sconf/202233408006/pdf"}, {"href": "https://doi.org/10.1051/e3sconf/202233408006"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/E3S%20Web%20of%20Conferences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1051/e3sconf/202233408006", "name": "item", "description": "10.1051/e3sconf/202233408006", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1051/e3sconf/202233408006"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-01-01T00:00:00Z"}}, {"id": "10.1051/e3sconf/202233408007", "type": "Feature", "geometry": null, "properties": {"updated": "2026-06-24T16:18:36Z", "type": "Journal Article", "created": "2022-01-10", "title": "Towards cost-effective soil microbial fuel cell designs", "description": "

Soil microbial fuel cell (SMFC) is a carbon-neutral energy harvesting technology that exploits the use of electroactive bacteria naturally present in soil to directly generate electricity from organic compounds. Given the simplicity of the system design, SMFCs have great potential to be used for decentralised solutions, especially in areas where access to conventional energy sources is limited. Yet, the high cost to power ratio severely limits the translation of this technology into the market. With the aim of reducing the capital cost, in this study we explore the effect of decreasing the amounts of current collector (CC) on the performance. The results demonstrate that increasing the amount of current collector per surface area of the electrode is not a feasible way of enhancing power densities, as to increase the performance by 20% and 35%, the amount of current collector would have to be increased by 150% and 300%, respectively. This highlights the importance of economic evaluations when optimising the design of a SMFC.

", "keywords": ["Environmental sciences", "GE1-350", "7. Clean energy", "01 natural sciences", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1051/e3sconf/202233408007"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/E3S%20Web%20of%20Conferences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1051/e3sconf/202233408007", "name": "item", "description": "10.1051/e3sconf/202233408007", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1051/e3sconf/202233408007"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-01-01T00:00:00Z"}}, {"id": "10.3389/fenvs.2021.675803", "type": "Feature", "geometry": null, "properties": {"updated": "2026-06-24T16:21:23Z", "type": "Journal Article", "created": "2021-06-23", "title": "Microplastics increase soil pH and decrease microbial activities as a function of microplastic shape, polymer type, and exposure time.", "description": "

Microplastic pollution is a topic of increasing concern, especially since this issue was first addressed in soils. Results have so far been variable in terms of effects, suggesting that there is substantial context-dependency in microplastic effects in soil. To better define conditions that may affect microplastic-related impacts, we here examined effects as a function of microplastic shape and polymer type, and we tested if effects on soil properties and soil microbial activities change with incubation time. In our laboratory study, we evaluated twelve different secondary microplastics representing four microplastic shapes: fibers, films, foams and fragments; and eight polymer types: polyamide (PA), polycarbonate (PC), polyethylene (PE), polyester (PES), polyethylene terephthalate (PET), polypropylene (PP), polystyrene (PS), and polyurethane (PU). We mixed the microplastics with a sandy soil (0.4% w/w) and incubated at 25\uffc2\uffb0C for 31\uffc2\uffa0days. Then, we collected soil samples on the 3rd, 11th, and 31st\uffc2\uffa0day, and measured soil pH, respiration and four enzyme activities (soil enzymatic activities). Our results showed that microplastics could affect soil pH, respiration and enzymatic activities depending on microplastic shape and polymer type, effects that were altered with incubation time. Soil pH increased with foams and fragments and overall decreased in the first days of incubation and then increased. Soil respiration increased with PE foams and was affected by the incubation time, declining over time. Overall, acid phosphatase activity was not affected by shape or polymer type. \uffce\uffb2-D-glucosidase activity decreased with foams, cellobiosidase activity decreased with fibers, films and foams while N-acetyl-\uffce\uffb2-glucosaminidase activities decreased with fibers and fragments. Enzymatic activities fluctuated during the incubation time, except N-acetyl-\uffce\uffb2-glucosaminidase, which showed a declining trend with incubation time. Enzymatic activities were negatively correlated with soil pH and this relationship was less strong when microplastics were added to the soil. Our study adds to the evidence that research should embrace the complexity and diversity of microplastics, highlighting the role of microplastic shape and polymer type in influencing effects; additionally, we show that incubation time is also a parameter to consider, as effects are dynamic even in the short term.

", "keywords": ["580", "2. Zero hunger", "pH", "foams", "04 agricultural and veterinary sciences", "fibers", "15. Life on land", "soil respiration", "01 natural sciences", "6. Clean water", "Environmental sciences", "soil enzymatic activities", "500 Naturwissenschaften und Mathematik::580 Pflanzen (Botanik)::580 Pflanzen (Botanik)", "13. Climate action", "fragments", "0401 agriculture", " forestry", " and fisheries", "GE1-350", "films", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.3389/fenvs.2021.675803"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Frontiers%20in%20Environmental%20Science", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.3389/fenvs.2021.675803", "name": "item", "description": "10.3389/fenvs.2021.675803", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.3389/fenvs.2021.675803"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-06-23T00:00:00Z"}}, {"id": "10.3389/fenvs.2022.1020465", "type": "Feature", "geometry": null, "properties": {"updated": "2026-06-24T16:21:24Z", "type": "Journal Article", "created": "2022-10-03", "title": "Sub-lethal fungicide concentrations both reduce and stimulate the growth rate of non-target soil fungi from a natural grassland", "description": "

Conventional agriculture has relied extensively on the use of fungicides to prevent or control crop diseases. However, some fungicides, particularly broad-spectrum fungicides, not only eliminate target pathogens but also non-target and beneficial soil microbes. This scenario is not only limited to agricultural soil, but this may also potentially occur when neighboring environments are contaminated by fungicides through spray drift. Although concentrations may be sub-lethal, the chemicals may accumulate in the soil when used continuously resulting in more toxic effects. In this study, the effect on the colony extension rate of 31 filamentous soil saprobic fungi, initially isolated from a protected grassland ecosystem, were analyzed under fungicide treatment. These isolates were considered naive (no deliberate exposure), hence presumed to have not developed resistance. Two currently used fungicides with different modes of action were added to Potato Dextrose Agar at varying concentrations. Results showed a wide range of tolerance and sensitivity to isopyrazam and prothioconazole. Fungi belonging to the phylum Basidiomycota were most negatively affected by both fungicides. Phylum Mucoromycota were the most tolerant to prothioconazole while isolates belonging to phylum Ascomycota differed in their responses to both fungicides. Negative effects on the growth rate were more pronounced at higher concentrations except for a few isolates that were inhibited at 1\uffc2\uffa0mg\uffc2\uffb7L\uffe2\uff88\uff921. A slightly positive effect was also observed in three of the isolates under fungicide treatment. Lastly, the negative impact of fungicides was not associated with the growth strategy of the fungi, whether fast growing or slow growing, rather it is isolate-specific and phylogenetically conserved. The results of this study demonstrate that co-occurring fungi differ in their sensitivity to fungicides even without prior exposure. This difference in sensitivity among co-occurring fungi may result in shifts in community composition of the soil fungal community to the detriment of the more sensitive isolates.

", "keywords": ["Environmental sciences", "2. Zero hunger", "570", "soil filamentous fungi", "Biowissenschaften; Biologie", "differential sensitivity", "fungicide", "GE1-350", "15. Life on land", "grassland", "non-target fungi"], "contacts": [{"organization": "Jeane A. dela Cruz, Jeane A. dela Cruz, Tessa Camenzind, Tessa Camenzind, Matthias C. Rillig, Matthias C. Rillig,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.3389/fenvs.2022.1020465"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Frontiers%20in%20Environmental%20Science", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.3389/fenvs.2022.1020465", "name": "item", "description": "10.3389/fenvs.2022.1020465", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.3389/fenvs.2022.1020465"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-10-03T00:00:00Z"}}, {"id": "10.3389/fenvs.2022.764333", "type": "Feature", "geometry": null, "properties": {"updated": "2026-06-24T16:21:24Z", "type": "Journal Article", "created": "2022-04-01", "title": "Keeping Up with Phosphorus Dynamics: Overdue Conceptual Changes in Vegetative Filter Strip Research and Management", "description": "

Vegetative filter strips (VFS) are best management practices with the primary aim of protecting surface waters from eutrophication resulting from excess nutrient inputs from agricultural sources. However, we argue that there is a substantial time and knowledge lag from the science underpinning VFS to policy and implementation. Focussing on phosphorus (P), we strive to introduce a holistic view on VFS that accounts for the whole functional soil volume, temporal and seasonal effects, the geospatial context, the climatic and physico-chemical basic conditions, and the intricate bio-geochemical processes that govern nutrient retention, transformation, and transport. Specifically, we suggest a step-wise approach to custom VFS designs that links and matches the incoming P from event to multi-annual timescales from the short- and mid-term processes of P retention in the effective soil volume and to the longer-term P retention and offtake coupled to the soil-vegetation system. An a priori assessment of the P export potential should be followed by bespoke VFS designs, in line with local conditions and socio-economic and ecological constraints. To cope with increasingly nutrient saturated or functionally insufficient VFS installed over the last decades, concepts and management strategies need to encompass the transition in understanding of VFS as simple nutrient containers to multifunctional buffer zones that have a complex inner life. We need to address these associated emerging challenges and integrate their implications more thoroughly into VFS research, monitoring, policy, and implementation than ever before. Only then we may get VFS that are effective, sustainable, and persistent.Major Arctic rivers are undergoing changes due to climate warming with higher discharge and increased amounts of solutes and organic carbon (OC) draining into rivers and coastal seas. Permafrost thaw mobilizes previously frozen OC to the fluvial network where it can be degraded into greenhouse gases and emitted to the atmosphere. Degradation of OC during downstream transport, especially of the particulate OC (POC), is however poorly characterized. Here, we quantified POC degradation in the Kolyma River, the largest river system underlain with continuous permafrost, during 9\uffe2\uff80\uff9315 d whole-water incubations (containing POC and dissolved OC\uffe2\uff80\uff94DOC) during two seasons: spring freshet (early June) and late summer (end of July). Furthermore, we examined interactions between dissolved and particulate phases using parallel incubations of filtered water (only DOC). We measured OC concentrations and carbon isotopes (\uffce\uffb413C, \uffce\uff9414C) to define carbon losses and to characterize OC composition, respectively. We found that both POC composition and biodegradability differs greatly between seasons. During summer, POC was predominantly autochthonous (47%\uffe2\uff80\uff9395%) and degraded rapidly (\uffe2\uff88\uffbc33% loss) whereas freshet POC was largely of allochthonous origin (77%\uffe2\uff80\uff9396%) and less degradable. Gains in POC concentrations (up to 31%) were observed in freshet waters that could be attributed to flocculation and adsorption of DOC to particles. The demonstrated DOC flocculation and adsorption to POC indicates that the fate and dynamics of the substantially-sized DOC pool may shift from degradation to settling, depending on season and POC concentrations\uffe2\uff80\uff94the latter potentially acting to attenuate greenhouse gas emissions from fluvial systems. We finally note that DOC incubations without POC present may yield degradation estimates that do not reflect degradation in the in situ river conditions, and that interaction between dissolved and particulate phases may be important to consider when determining fluvial carbon dynamics and feedbacks under a changing climate.