Sustainable agriculture should aim to increase biomass yield and yield stability, while protecting soil carbon (C) and nitrogen (N) content. However, few studies have concurrently explored changes in biomass yield, yield stability and soil C and N content under different cropping systems targeting biorefinery. In this study, 10 different cropping systems were simultaneously investigated from 2012 to 2017 in central Denmark on a loamy sand soil, including (1) two continuous monocultures of annual crops, (2) one optimized crop rotation, (3) five intensively fertilized perennial grasses, and (4) two grass-legume mixtures without nitrogen (N) fertilization. Our results showed that biomass yield and yield stability differed highly across the cropping systems, highlighting crop-specific characteristics. Of the 10 cropping systems, tall fescue significantly increased soil C and N content at 0\u201320 cm depth, while sustaining high biomass yield and yield stability. There was no clear relationship between biomass yield, yield stability and changes in soil C and N content, challenging some recent findings on the conflicts between increasing biomass yield and protecting soil C and N content. Indeed, the lack of relationships suggest that there is considerable potential to increase biomass yield and yield stability without compromising soil C and N content through selecting proper cropping systems and managements. Altogether, our results underscore how crop-specific documentation of biomass yield, yield stability and changes in soil C and N content on the same experimental platform can advance the understanding of sustainable agriculture for biorefineries, although long-term continuous observations are still required to better clarify the relations between them.
", "keywords": ["2. Zero hunger", "0106 biological sciences", "Optimized crop rotation", "Climate mitigation", "Sustainable agriculture", "Aboveground biomass", "04 agricultural and veterinary sciences", "15. Life on land", "Diversified cropping systems", "01 natural sciences", "12. Responsible consumption", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "Grass legume mixture", "Perennial grass", "Conventional agriculture"]}, "links": [{"href": "https://doi.org/10.1016/j.still.2022.105397"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20and%20Tillage%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.still.2022.105397", "name": "item", "description": "10.1016/j.still.2022.105397", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.still.2022.105397"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-07-01T00:00:00Z"}}, {"id": "10.1046/j.1365-2486.2001.00388.x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:18:52Z", "type": "Journal Article", "created": "2003-03-11", "title": "Chemistry And Decomposition Of Litter From Populus Tremuloides Michaux Grown At Elevated Atmospheric Co2 And Varying N Availability", "description": "SummaryIt has been hypothesized that greater production of total nonstructural carbohydrates (TNC) in foliage grown under elevated atmospheric carbon dioxide (CO2) will result in higher concentrations of defensive compounds in tree leaf litter, possibly leading to reduced rates of decomposition and nutrient cycling in forest ecosystems of the future. To evaluate the effects of elevated atmospheric CO2on litter chemistry and decomposition, we performed a 111 day laboratory incubation with leaf litter of trembling aspen (Populus tremuloidesMichaux) produced at 36\uffe2\uff80\uff83Pa and 56\uffe2\uff80\uff83Pa CO2and two levels of soil nitrogen (N) availability. Decomposition was quantified as microbially respired CO2and dissolved organic carbon (DOC) in soil solution, and concentrations of nonstructural carbohydrates, N, carbon (C), and condensed tannins were monitored throughout the incubation. Growth under elevated atmospheric CO2did not significantly affect initial litter concentrations of TNC, N, or condensed tannins. Rates of decomposition, measured as both microbially respired CO2and DOC did not differ between litter produced under ambient and elevated CO2. Total C lost from the samples was 38\uffe2\uff80\uff83mg\uffe2\uff80\uff83g\uffe2\uff88\uff921litter as respired CO2and 138\uffe2\uff80\uff83mg\uffe2\uff80\uff83g\uffe2\uff88\uff921litter as DOC, suggesting short\uffe2\uff80\uff90term pulses of dissolved C in soil solution are important components of the terrestrial C cycle. We conclude that litter chemistry and decomposition in trembling aspen are minimally affected by growth under higher concentrations of CO2.
", "keywords": ["Ecology and Evolutionary Biology", "carbohydrates", "Quaking aspen", "forest-soil", "litter-plant", "nitrogen", "nitrogen-", "Microlysimeter", "soil-chemistry", "cycling-", "populus-tremuloides", "Geology and Earth Sciences", "Soil Carbon", "Microbiology of soils", "Carbon cycle", "04 agricultural and veterinary sciences", "GLOBAL-ECOLOGY", "chemical-composition", "Organic-matter", "soil-solution", "nutrient-availability", "Tannin", "leaf-litter", "Science", "decomposition-", "Nutrient enrichment", "Carbohydrates", "carbohydrates-", "respiration-", "carbon-dioxide-enrichment", "Nitrogen in soil", "michigan-", "carbon sinks", "C", "Nutrient budget of forests", "Litter", "Populus tremuloides", "Global Change", "tannins-", "Decomposition", "forest-litter", "Foliage", "Carbon dioxide effects on forest litter", "Climatic changes", "15. Life on land", "carbon-nitrogen-ratio", "Forest litter decomposition", "N Ratio", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "microbial-activities", "nitrogen-content"]}, "links": [{"href": "https://doi.org/10.1046/j.1365-2486.2001.00388.x"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Global%20Change%20Biology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1046/j.1365-2486.2001.00388.x", "name": "item", "description": "10.1046/j.1365-2486.2001.00388.x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1046/j.1365-2486.2001.00388.x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2001-01-01T00:00:00Z"}}, {"id": "10.1016/j.still.2021.105043", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:18:04Z", "type": "Journal Article", "created": "2021-05-11", "title": "Response of boreal clay soil properties and erosion to ten years of no-till management", "description": "Abstract We compared soil physical, chemical and biological properties, erosion rate and carbon allocation to soil physical fractions between conventional tillage (CT) and no-till (NT) management at a clay soil site under spring cereal monoculture in southwestern Finland. Subsurface drain discharge, surface runoff and soil erosion were continuously monitored in 2008 \u2212 2018. At the end of the 10-year monitoring period in 2018, various soil properties and earthworm total density, mass and species richness were determined. Total soil erosion was 56 % less in NT than in CT although surface water discharge was higher in NT. NT had a clear effect on the topsoil physical structure by decreasing the pore size and increasing soil aggregate size. The total soil carbon stock in the 700 kg m\u22122 mineral topsoil layer (approx. 0\u221260 cm layer) was slightly lower in NT (108 \u00b1 12 Mg C ha-1) than in CT (118 \u00b1 9.0 Mg C ha-1) due to lower carbon content of the 10\u221230 cm layer in NT. In NT the proportion of large macroaggregates was higher and more organic carbon was bound to large macroaggregates in the 0\u221210 cm layer which may be related to the higher abundance of earthworms in NT. The results showed that NT is an effective method to reduce erosion rates but other means to increase carbon input especially below the topsoil layer are likely required to achieve a significant increase in the carbon stock of boreal clay soils. For both tillage managements, the rate of erosion through subsurface drains depended clearly on annual precipitation and winter temperature, posing a challenge in the future climate with mild winters and more extreme discharges.", "keywords": ["No-tillage", " soil aggregate", " soil erosion", " water discharge", " earthworm", " soil carbon", "2. Zero hunger", "550", "ta1172", "No-tillage", "Soil aggregate", "04 agricultural and veterinary sciences", "15. Life on land", "Soil carbon", "630", "6. Clean water", "Water discharge", "13. Climate action", "Earthworm", "Soil erosion", "0401 agriculture", " forestry", " and fisheries"]}, "links": [{"href": "https://doi.org/10.1016/j.still.2021.105043"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20and%20Tillage%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.still.2021.105043", "name": "item", "description": "10.1016/j.still.2021.105043", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.still.2021.105043"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-08-01T00:00:00Z"}}, {"id": "10.1016/j.still.2022.105377", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:18:04Z", "type": "Journal Article", "created": "2022-03-25", "title": "Site-specific seeding for maize production using management zone maps delineated with multi-sensors data fusion scheme (SOILdarity projecct related publication, second reporting period)", "keywords": ["2. Zero hunger", "0106 biological sciences", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.still.2022.105377"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20and%20Tillage%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.still.2022.105377", "name": "item", "description": "10.1016/j.still.2022.105377", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.still.2022.105377"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-06-01T00:00:00Z"}}, {"id": "10.1046/j.1365-2486.2001.00415.x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:18:53Z", "type": "Journal Article", "created": "2003-03-11", "title": "Elevated Co2enhances Water Relations And Productivity And Affects Gas Exchange In C3and C4grasses Of The Colorado Shortgrass Steppe.", "description": "SummarySix open\uffe2\uff80\uff90top chambers were installed on the shortgrass steppe in north\uffe2\uff80\uff90eastern Colorado, USA from late March until mid\uffe2\uff80\uff90October in 1997 and 1998 to evaluate how this grassland will be affected by rising atmospheric CO2. Three chambers were maintained at current CO2 concentration (ambient treatment), three at twice ambient CO2, or approximately 720\uffe2\uff80\uff83\uffce\uffbcmol mol\uffe2\uff88\uff921 (elevated treatment), and three nonchambered plots served as controls. Above\uffe2\uff80\uff90ground phytomass was measured in summer and autumn during each growing season, soil water was monitored weekly, and leaf photosynthesis, conductance and water potential were measured periodically on important C3 and C4 grasses. Mid\uffe2\uff80\uff90season and seasonal above\uffe2\uff80\uff90ground productivity were enhanced from 26 to 47% at elevated CO2, with no differences in the relative responses of C3/C4 grasses or forbs. Annual above\uffe2\uff80\uff90ground phytomass accrual was greater on plots which were defoliated once in mid\uffe2\uff80\uff90summer compared to plots which were not defoliated during the growing season, but there was no interactive effect of defoliation and CO2 on growth. Leaf photosynthesis was often greater in Pascopyrum smithii (C3) and Bouteloua gracilis (C4) plants in the elevated chambers, due in large part to higher soil water contents and leaf water potentials. Persistent downward photosynthetic acclimation in P. smithii leaves prevented large photosynthetic enhancement for elevated CO2\uffe2\uff80\uff90grown plants. Shoot N concentrations tended to be lower in grasses under elevated CO2, but only Stipa comata (C3) plants exhibited significant reductions in N under elevated compared to ambient CO2 chambers. Despite chamber warming of 2.6\uffe2\uff80\uff83\uffc2\uffb0C and apparent drier chamber conditions compared to unchambered controls, above\uffe2\uff80\uff90ground production in all chambers was always greater than in unchambered plots. Collectively, these results suggest increased productivity of the shortgrass steppe in future warmer, CO2 enriched environments.
", "keywords": ["2. Zero hunger", "0106 biological sciences", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences"], "contacts": [{"organization": "Jack A. Morgan, Arvin R. Mosier, Daniel G. Milchunas, Daniel R. LeCain,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1046/j.1365-2486.2001.00415.x"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Global%20Change%20Biology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1046/j.1365-2486.2001.00415.x", "name": "item", "description": "10.1046/j.1365-2486.2001.00415.x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1046/j.1365-2486.2001.00415.x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2001-04-01T00:00:00Z"}}, {"id": "10.1016/j.syapm.2012.10.007", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:18:05Z", "type": "Journal Article", "created": "2013-01-18", "title": "Shifts In Soil Bacterial Community After Eight Years Of Land-Use Change", "description": "The interaction between plants, soil and microorganisms is considered to be the major driver of ecosystem functions and any modification of plant cover and/or soil properties might affect the microbial structure, which, in turn, will influence ecological processes. Assuming that soil properties are the major drivers of soil bacterial diversity and structure within the same soil type, it can be postulated whether plant cover causes significant shifts in soil bacterial community composition. To address this question, this study used 16S rRNA pyrosequencing to detect differences in diversity, composition and/or relative abundance of bacterial taxa from an area covered by pristine forest, as well as eight-year-old grassland surrounded by the same forest. It was shown that a total of 69% of the operational taxonomic units (OTUs) were shared between environments. Overall, forest and grassland samples presented the same diversity and the clustering analysis did not show the occurrence of very distinctive bacterial communities between environments. However, 11 OTUs were detected in statistically significant higher abundance in the forest samples but in lower abundance in the grassland samples, whereas 12 OTUs occurred in statistically significant higher abundance in the grassland samples but in lower abundance in the forest samples. The results suggested the prevalence of a resilient core microbial community that did not suffer any change related to land use, soil type or edaphic conditions. The results illustrated that the history of land use might influence present-day community structure.", "keywords": ["DNA", " Bacterial", "2. Zero hunger", "Agriculture", "Sequence Analysis", " DNA", "04 agricultural and veterinary sciences", "Plants", "15. Life on land", "Biota", "DNA", " Ribosomal", "Trees", "13. Climate action", "RNA", " Ribosomal", " 16S", "Cluster Analysis", "0401 agriculture", " forestry", " and fisheries", "Phylogeny", "Soil Microbiology"]}, "links": [{"href": "https://doi.org/10.1016/j.syapm.2012.10.007"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Systematic%20and%20Applied%20Microbiology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.syapm.2012.10.007", "name": "item", "description": "10.1016/j.syapm.2012.10.007", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.syapm.2012.10.007"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-03-01T00:00:00Z"}}, {"id": "10261/395214", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:26:54Z", "type": "Journal Article", "created": "2025-03-11", "title": "Long\u2010Term Application of No\u2010Tillage\u2010Induced Greater Risk of Poor Topsoil Aeration Along a European Pedoclimatic Gradient", "description": "ABSTRACTThis paper assesses the effect of long\uffe2\uff80\uff90term contrasting tillage practices on topsoil structural characteristics critical for nitrous oxide (N 2 O) emissions and carbon sequestration across a pedoclimatic gradient. The hypotheses tested are that: (i) aeration is greater in the topsoil of ploughed (to 0.20\uffe2\uff80\uff930.30\uffe2\uff80\uff89m depth) than in no\uffe2\uff80\uff90till soils and (ii) the effect of tillage practice on soil functionality depends on the context, and thus varies between sites with different pedoclimatic conditions. We evaluated the topsoil characteristics of seven long\uffe2\uff80\uff90term tillage experiments, spread along a 2600\uffe2\uff80\uff90km transect in Europe. A total of 576 soil cores (100\uffe2\uff80\uff90cm 3 ) were sampled from 0 to 0.10 and 0.10 to 0.20\uffe2\uff80\uff89m depths in mouldboard\uffe2\uff80\uff90ploughed and no\uffe2\uff80\uff90tillage treatments after harvest. The soil water content at \uffe2\uff88\uff9230, \uffe2\uff88\uff9260, and \uffe2\uff88\uff92100\uffe2\uff80\uff89hPa matric potential was measured as well as air permeability ( k a ) and relative gas diffusivity ( D s /D o ) at \uffe2\uff88\uff92100\uffe2\uff80\uff89hPa, from which soil bulk and gas transport characteristics were derived. Despite large variations in the characteristics among sites, tillage did significantly affect the characteristics across sites. The degree of compactness was less\uffc2\uffa0and total pore volume was greater\uffc2\uffa0in the ploughed than in the no\uffe2\uff80\uff90till treatments. Still, thresholds indicating suitable conditions for root growth were largely met under both practices. The ploughed soils showed vertical stratification, with a better aeration of the 0\uffe2\uff80\uff930.10\uffe2\uff80\uff89m soil layer compared to the 0.10\uffe2\uff80\uff930.20\uffe2\uff80\uff89m layer. No differences were observed between the ploughed 0.10\uffe2\uff80\uff930.20\uffe2\uff80\uff89m and no\uffe2\uff80\uff90till layers, which were attributed to soil settlement after ploughing. While the D s /D o at 0.10\uffe2\uff80\uff930.20\uffe2\uff80\uff89m depth was favourable for promoting N 2 O emissions, the water\uffe2\uff80\uff90filled pore space was below suggested thresholds. Impacts of tillage on soil structural and functional characteristics were both significant and generalisable but also deviated locally. For example, D s /D o and k a generally increased with the air\uffe2\uff80\uff90filled pore volume ( \uffce\uffb5 a ), yet sites with greater \uffce\uffb5 a did not necessarily have higher D s /D o and k a . Existing models explaining D s /D o and k a with \uffce\uffb5 a were fitted to the measured data and performed best when both depths and tillage practices were assessed altogether. Despite the limited differences at \uffe2\uff88\uff92100\uffe2\uff80\uff89hPa, anoxic conditions may in reality prevail for a longer period under no\uffe2\uff80\uff90till than ploughing. 1.0, when a nearby collapsing bubble is not in their direct contact. However, the critical dimensionless distance for the case of an envelope with pre-existing pores is identified at \u03b4=1.9. Additionally, the influence of liposome-bubble size ratio is addressed, from which a higher potential of larger bubbles for causing stretching-induced liposome destruction can be identified.", "keywords": ["bubble dynamics", "lipidni vezniki", "dinamika mehur\u010dkov", "bubble dynamics", " cavitation", " fluid-structure interaction", " shock wave emission", " giant lipid vesicles", " DOPC", "QC221-246", "fluid-structure interaction", "shock wave emission", "Bubble dynamics", "emisija udarnih valov", "kavitacija", "0404 agricultural biotechnology", "cavitation", "Fluid-structure interaction", "giant lipid vesicles", "Shock wave emission", "Original Research Article", "QD1-999", "Cavitation", "Giant lipid vesicles", "Microbubbles", "info:eu-repo/classification/udc/532.528:577.115.5", "Acoustics. Sound", "dinamika mehur\u010dkov", " kavitacija", " interakcija fluid-struktura", " emisija udarnih valov", " lipidni vezniki", " DOPC", "04 agricultural and veterinary sciences", "6. Clean water", "Chemistry", "info:eu-repo/classification/udc/532", "DOPC", "Liposomes", "Viruses", "Hydrodynamics", "interakcija fluid-struktura", "0405 other agricultural sciences"], "contacts": [{"organization": "Zevnik, Jure, Dular, Matev\u017e,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.ultsonch.2021.105706"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Ultrasonics%20Sonochemistry", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.ultsonch.2021.105706", "name": "item", "description": "10.1016/j.ultsonch.2021.105706", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.ultsonch.2021.105706"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-10-01T00:00:00Z"}}, {"id": "10.1016/j.ultsonch.2021.105663", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:18:07Z", "type": "Journal Article", "created": "2021-07-08", "title": "Challenges of numerical simulations of cavitation reactors for water treatment - An example of flow simulation inside a cavitating microchannel.", "description": "The research on the potential of cavitation exploitation is currently an extremely interesting topic. To reduce the costs and time of the cavitation reactor optimization, nowadays, experimental optimization is supplemented and even replaced using computational fluid dynamics (CFD). This is a very inviting opportunity for many developers, yet we find that all too often researchers with non-engineering background treat this 'new' tool too simplistic, what leads to many misinterpretations and consequent poor engineering. The present paper serves as an example of how complex the flow features, even in the very simplest geometry, can be, and how much effort needs to be put into details of numerical simulation to set a good starting point for further optimization of cavitation reactors. Finally, it provides guidelines for the researchers, who are not experts in computational fluid dynamics, to obtain reliable and repeatable results of cavitation simulations.", "keywords": ["Venturi", "QC221-246", "computational fluid dynamics", "Numerical simulation", "Computational fluid dynamics", "cavitation", " computational fluid dynamics", " numerical simulation", " venturi", " microchannel", "kavitacija", "venturijeve cevi", "0404 agricultural biotechnology", "cavitation", "microchannel", "info:eu-repo/classification/udc/532.528:519.6:004.942", "Original Research Article", "numeri\u010dna simulacija", "QD1-999", "Venturi channel", "kavitacija", " ra\u010dunska dinamika fluidov", " numeri\u010dna simulacija", " venturijeve cevi", " mikrokanal", "Cavitation", "Acoustics. Sound", "ra\u010dunska dinamika fluidov", "04 agricultural and veterinary sciences", "6. Clean water", "mikrokanal", "Chemistry", "numerical simulation", "info:eu-repo/classification/udc/532", "0405 other agricultural sciences"], "contacts": [{"organization": "Pipp, Peter, Ho\u010devar, Marko, Dular, Matev\u017e,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.ultsonch.2021.105663"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Ultrasonics%20Sonochemistry", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.ultsonch.2021.105663", "name": "item", "description": "10.1016/j.ultsonch.2021.105663", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.ultsonch.2021.105663"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-09-01T00:00:00Z"}}, {"id": "10.1016/j.vaccine.2004.03.053", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:18:07Z", "type": "Journal Article", "created": "2004-04-28", "title": "Reducing Methane Emissions In Sheep By Immunization Against Rumen Methanogens", "description": "This work was conducted to determine if methane emissions from sheep immunized with an anti-methanogen vaccine were significantly lower than methane emissions from non-immunized sheep, to test the effectiveness of two different vaccine formulations (VF) on methane abatement, and to compare methane emissions measured using a closed-circuit respiration chamber and the sulphur-hexafluoride (SF6) tracer technique. Thirty mature wether sheep were randomly allocated to three treatment groups (n = 10). One group received an immunization of adjuvant only on days 0 and 153 (control), a second group received an immunization with a 3-methanogen mix on days 0 and 153 (VF3 + 3), and a third group received an immunization of a 7-methanogen mix on day 0 followed by a 3-methanogen mix on day 153 (VF7 + 3). Four weeks post-secondary immunization, there was a significant 7.7% reduction in methane production per kg dry matter intake in the VF7 + 3 group compared to the controls (P = 0.051). However, methane emissions from sheep immunized with VF7 + 3 were not significantly different when compared to the sheep in the control group (P = 0.883). The average IgG and IgA antibody titres in both plasma and saliva of the VF3 + 3 immunized sheep were four to nine times higher than those immunized with VF7 + 3 (P< 0.001) at both 3 and 6 weeks post-secondary immunization. Data also revealed that SF6 methane estimates were consistently higher than the respiration chamber estimates and that there was no significant correlation between the SF6 methane estimates and the respiration chamber methane estimates (R2 = 0.11).", "keywords": ["2. Zero hunger", "Vaccines", "Rumen", "Sheep", "Time Factors", "Methanobacterium", "Immunization", " Secondary", "0402 animal and dairy science", "04 agricultural and veterinary sciences", "Methanobrevibacter", "Archaea", "Immunoglobulin A", "3. Good health", "Antibodies", " Archaeal", "Kinetics", "Adjuvants", " Immunologic", "13. Climate action", "Immunoglobulin G", "Methanosarcina", "Animals", "Methanomicrobiaceae", "Saliva", "Methane"]}, "links": [{"href": "https://doi.org/10.1016/j.vaccine.2004.03.053"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Vaccine", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.vaccine.2004.03.053", "name": "item", "description": "10.1016/j.vaccine.2004.03.053", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.vaccine.2004.03.053"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2004-09-01T00:00:00Z"}}, {"id": "10.1111/j.1365-2486.2005.01001.x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:20:04Z", "type": "Journal Article", "created": "2005-08-19", "title": "Soil Organic Matter And Litter Chemistry Response To Experimental N Deposition In Northern Temperate Deciduous Forest Ecosystems", "description": "Abstract
The effects of atmospheric nitrogen (N) deposition on organic matter decomposition vary with the biochemical characteristics of plant litter. At the ecosystem\uffe2\uff80\uff90scale, net effects are difficult to predict because various soil organic matter (SOM) fractions may respond differentially. We investigated the relationship between SOM chemistry and microbial activity in three northern deciduous forest ecosystems that have been subjected to experimental N addition for 2 years. Extractable dissolved organic carbon (DOC), DOC aromaticity, C\uffe2\uff80\uff83:\uffe2\uff80\uff83N ratio, and functional group distribution, measured by Fourier transform infrared spectra (FTIR), were analyzed for litter and SOM. The largest biochemical changes were found in the sugar maple\uffe2\uff80\uff93basswood (SMBW) and black oak\uffe2\uff80\uff93white oak (BOWO) ecosystems. SMBW litter from the N addition treatment had less aromaticity, higher C\uffe2\uff80\uff83:\uffe2\uff80\uff83N ratios, and lower saturated carbon, lower carbonyl carbon, and higher carboxylates than controls; BOWO litter showed opposite trends, except for carbonyl and carboxylate contents. Litter from the sugar maple\uffe2\uff80\uff93red oak (SMRO) ecosystem had a lower C\uffe2\uff80\uff83:\uffe2\uff80\uff83N ratio, but no change in DOC aromaticity. For SOM, the C\uffe2\uff80\uff83:\uffe2\uff80\uff83N ratio increased with N addition in SMBW and SMRO ecosystems, but decreased in BOWO; N addition did not affect the aromaticity of DOC extracted from mineral soil. All ecosystems showed increases in extractable DOC from both litter and soil in response to N treatment. The biochemical changes are consistent with the divergent microbial responses observed in these systems. Extracellular oxidative enzyme activity has declined in the BOWO and SMRO ecosystems while activity in the SMBW ecosystem, particularly in the litter horizon, has increased. In all systems, enzyme activities associated with the hydrolysis and oxidation of polysaccharides have increased. At the ecosystem scale, the biochemical characteristics of the dominant litter appear to modulate the effects of N deposition on organic matter dynamics.
", "keywords": ["Litter Chemistry", "Geology and Earth Sciences", "13. Climate action", "Soil Organic Matter", "Science", "Ecology and Evolutionary Biology", "0401 agriculture", " forestry", " and fisheries", "Nitrogen Deposition", "04 agricultural and veterinary sciences", "15. Life on land", "Dissolved Organic Matter", "Extracellular Enzyme Activity"]}, "links": [{"href": "https://doi.org/10.1111/j.1365-2486.2005.01001.x"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Global%20Change%20Biology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/j.1365-2486.2005.01001.x", "name": "item", "description": "10.1111/j.1365-2486.2005.01001.x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/j.1365-2486.2005.01001.x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2005-07-19T00:00:00Z"}}, {"id": "10.1111/j.1365-2486.2006.01309.x", "type": "Feature", "geometry": null, "properties": {"license": "Closed Access", "updated": "2026-04-03T16:20:05Z", "type": "Journal Article", "created": "2007-01-10", "title": "The Potential Of Cropping Systems And Soil Amendments For Carbon Sequestration In Soils Under Long-Term Experiments In Subtropical India", "description": "AbstractAn understanding of the dynamics of carbon (C) stock in soils, as impacted by management strategies, is necessary to identify the pathways of C sequestration in soils and for maintaining soil organic C (SOC) at a level critical for upkeeping soil health and also for restraining global warming. This is more important in tropical and subtropical region where soils are inherently low in organic C content and the production system is fragile. We evaluated the long\uffe2\uff80\uff90term role of crop residue C inputs to soil in SOC sequestration and also the critical value of C inputs for maintenance of SOC across five different rice\uffe2\uff80\uff90based cropping systems and four soil management practices including a fallow (no cultivation since initiation of the experiments) using five long\uffe2\uff80\uff90term (7\uffe2\uff80\uff9336 years) fertility experiments in subtropical India. Croppingper sealways caused a net depletion of SOC. Such depletion was inversely proportional to the amount of crop residue C incorporated into the soils (r=\uffe2\uff88\uff920.92,P=0.001). Balanced fertilization with NPK, however, caused an enrichment (9.3\uffe2\uff80\uff9351.8% over the control) of SOC, its extent being influenced by the cropping systems. Long\uffe2\uff80\uff90term application of organic amendments (5\uffe2\uff80\uff9310\uffe2\uff80\uff83Mg\uffe2\uff80\uff83ha\uffe2\uff88\uff921\uffe2\uff80\uff83yr\uffe2\uff88\uff921) through farmyard manure (FYM) or compost could increase SOC hardly by 10.7% constituting only 18% of the applied C, the rest getting lost through oxidation. The total quantity of soil C sequestered varied from \uffe2\uff88\uff9211.5 to 14.5\uffe2\uff80\uff83Mg\uffe2\uff80\uff83C\uffe2\uff80\uff83ha\uffe2\uff88\uff921and was linearly related (r2=0.40,P=0.005) with cumulative crop residue C inputs to the soils. On an average, the rate of its conversion to SOC came out to be 6.4%. This was more in presence of added organics (6.9%) than in its absence (4.2%). For sustenance of SOC level (zero change due to cropping) we found that a minimum quantity of 2.9\uffe2\uff80\uff83Mg\uffe2\uff80\uff83C is required to be added per hectare per annum as inputs. The cropping systems and the management practices that could provide C input higher than the above critical level are likely to sustain the SOC level and maintain good soil health in the subtropical regions of the Indian subcontinent.
", "keywords": ["2. Zero hunger", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "6. Clean water"]}, "links": [{"href": "https://doi.org/10.1111/j.1365-2486.2006.01309.x"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Global%20Change%20Biology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/j.1365-2486.2006.01309.x", "name": "item", "description": "10.1111/j.1365-2486.2006.01309.x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/j.1365-2486.2006.01309.x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-12-06T00:00:00Z"}}, {"id": "10.1016/j.watres.2019.114906", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:18:07Z", "type": "Journal Article", "created": "2019-07-23", "title": "Antibiotic resistance and class 1 integron gene dynamics along effluent, reclaimed wastewater irrigated soil, crop continua: elucidating potential risks and ecological constraints", "description": "Reuse of municipal wastewater is a growing global trend, but currently there is lack of consensus regarding the potential dissemination of antibiotic resistance elements by treated wastewater irrigation. We tracked intI1, a proxy for anthropogenic pollution, and an assemblage of antibiotic resistance genes associated with mobile elements and/or wastewater (blaGES, blaOXA2, blaOXA10, blaTEM, blaCTX-M-32 and qnrS) in treated wastewater effluents, effluent stabilization reservoirs, and along irrigation water-soil-crop continua in experimental lysimeters and large-scale commercial fields. While several of the targeted antibiotic resistance genes were profuse in effluents, there was almost no correlation between gene abundance in irrigation water and those detected in soil, and no evidence of systematic gene transfer to irrigated soil or crops. In contrast, soil intI1 abundance correlated strongly to irrigation water levels in lysimeters and sandy field soils, but this was not the case for clay-rich soils or for most of the analyzed crops, suggesting that intI1 may not always be a reliable marker for tracking the impact of treated wastewater irrigation. We hypothesize that 'ecological boundaries' expedited by biotic and abiotic factors constrain dissemination of antibiotic resistance elements, and assert that a more holistic perception of these factors is crucial for understanding and managing antibiotic resistance dissemination.", "keywords": ["2. Zero hunger", "Soil", "Agricultural Irrigation", "Genes", " Bacterial", "13. Climate action", "Drug Resistance", " Microbial", "Wastewater", "15. Life on land", "Waste Disposal", " Fluid", "01 natural sciences", "6. Clean water", "Integrons", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.watres.2019.114906"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Water%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.watres.2019.114906", "name": "item", "description": "10.1016/j.watres.2019.114906", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.watres.2019.114906"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-11-01T00:00:00Z"}}, {"id": "10.1016/j.watres.2021.116818", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:18:08Z", "type": "Journal Article", "created": "2021-01-08", "title": "Antibiotic resistance gene load and irrigation intensity determine the impact of wastewater irrigation on antimicrobial resistance in the soil microbiome", "description": "Treated wastewater (TWW) irrigation is a useful counter-measure against the depletion of freshwater (FW) resources. However, TWW contains several contaminants of emerging concern, such as antibiotic resistant bacteria (ARB) and antibiotic resistant genes (ARGs). Thus, TWW irrigation might promote the spread of antimicrobial resistance in soil environments. In the present work, we hypothesized that the ARG load and irrigation intensity define the effect of TWW irrigation on ARG spread dynamics in soil. This hypothesis was tested using a multiphase approach: a) comparing soil from a full-scale, commercially operated, TWW irrigated field with non-irrigated soil, b) long-term sampling of the TWW irrigated field over one year with different irrigation intensities and intercepted by irrigation breaks and c) laboratory-scale soil microcosms irrigated with TWW compared to FW. Six ARGs, the integrase gene intI1 and the 16S rRNA were quantified using qPCR. In addition, effects of TWW irrigation on bacterial community composition of microcosm-samples were analysed with 16S rRNA amplicon sequencing. The genes sul1, qnrS, blaOXA-58, tet(M) and intI1 were significantly more abundant in the TWW irrigated field soil, whereas blaCTX--M-32 and blaTEM, the least abundant genes in the TWW irrigation, showed higher abundance in the non-irrigated soil. The relative abundance of sul1, qnrS, blaOXA-58, tet(M) and intI1 correlated with TWW irrigation intensity and decreased during irrigation breaks. Despite the decrease, the levels of these genes remained consistently higher than the non-irrigated soil indicating persistence upon their introduction into the soil. Microcosm experiments verified observations from the field study: TWW irrigation promoted the spread of ARGs and intI1 into soil at far elevated levels compared to FW irrigation. However, the impact of TWW irrigation on 16S rRNA absolute abundance and the soil microbial community composition was negligible. In conclusion, the impact of TWW irrigation depends mainly on the introduced ARG load and the irrigation intensity.", "keywords": ["0301 basic medicine", "2. Zero hunger", "Agricultural Irrigation", "Microbiota", "Angiotensin-Converting Enzyme Inhibitors", "Wastewater", "15. Life on land", "01 natural sciences", "6. Clean water", "Anti-Bacterial Agents", "Angiotensin Receptor Antagonists", "Soil", "03 medical and health sciences", "Genes", " Bacterial", "RNA", " Ribosomal", " 16S", "Drug Resistance", " Bacterial", "Soil Microbiology", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.watres.2021.116818"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Water%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.watres.2021.116818", "name": "item", "description": "10.1016/j.watres.2021.116818", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.watres.2021.116818"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-04-01T00:00:00Z"}}, {"id": "10.1016/j.watres.2022.118628", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:18:08Z", "type": "Journal Article", "created": "2022-05-17", "title": "Investigation of hydrodynamic cavitation induced reactive oxygen species production in microchannels via chemiluminescent luminol oxidation reactions", "description": "Hydrodynamic cavitation was evaluated for its reactive oxygen species production in several convergent-divergent microchannel at the transition from micro to milli scale. Channel widths and heights were systematically varied to study the influence of geometrical parameters at the transitory scale. A photomultiplier tube was used for time-resolved photon detection and monitoring of the chemiluminescent luminol oxidation reactions, allowing for a contactless and in situ quantization of reactive oxygen species production in the channels. The radical production rates at various flow parameters were evaluated, showing an optimal yield per flow rate exists in the observed geometrical range. While cavitation cloud shedding was the prevailing regime in this type of channels, the photon arrival time analysis allowed for an investigation of the cavitation structure dynamics and their contribution to the chemical yield, revealing that radical production is not linked to the synchronous cavitation cloud collapse events. Instead, individual bubble collapses occurring throughout the cloud formation were recognized to be the source of the reactive oxygen species.", "keywords": ["convergent-divergent channels", "kemoluminiscenca", "free radicals", "Free radicals", "Photon counting", "microscale cavitation", "kavitacija", "info:eu-repo/classification/udc/532.528", "0404 agricultural biotechnology", "Microscale cavitation", "cavitation cloud shedding", "kavitacija", " prosti radikali", " kemoluminiscenca", "photon counting", "Convergent-divergent channels", "[SPI.FLUID] Engineering Sciences [physics]/Reactive fluid environment", "04 agricultural and veterinary sciences", "Luminol chemiluminescence", "Cavitation cloud shedding", "info:eu-repo/classification/udc/532", "Luminescent Measurements", "Hydrodynamics", "luminol chemiluminescence", "cavitation cloud shedding", " free radicals", " photon counting", " microscale cavitation", " luminol chemiluminescence", " convergent-divergent channels", "Luminol", "Reactive Oxygen Species", "0405 other agricultural sciences", "prosti radikali", "Oxidation-Reduction"]}, "links": [{"href": "https://doi.org/10.1016/j.watres.2022.118628"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Water%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.watres.2022.118628", "name": "item", "description": "10.1016/j.watres.2022.118628", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.watres.2022.118628"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-07-01T00:00:00Z"}}, {"id": "10.1016/j.watres.2025.123242", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:18:08Z", "type": "Journal Article", "created": "2025-02-03", "title": "How do varying nitrogen fertilization rates affect crop yields and riverine N2O emissions? A hybrid modeling study", "description": "Headwater streams in agricultural areas constitute significant sources of nitrous oxide (N2O) due to nutrient enrichment; however, their emissions are often overlooked in current environmental impact assessments. This scarcity highlights the importance of developing advanced decision tools to evaluate these contributions and create effective mitigation strategies. Our study establishes the first integrated modeling framework that combines a process-based model SWAT+ with a linear mixed model (LMM) to predict N2O emissions from a headwater agricultural river system in Belgium under diverse climate change and fertilization scenarios. In particular, the calibrated and validated SWAT+ model was used to simulate streamflow, nutrient transport, and crop yields under these scenarios, from which, together with biochemical data collected from sampling campaigns, riverine N2O emissions were predicted via LMM. Our results revealed hydrologically driven patterns in riverine N2O emissions, with peak emissions in winter and spring, driven by precipitations enhancing shallow subsurface flows, carrying leached nutrients from fields to the river, and fueling N2O emissions. These phenomena were intensified under climate change scenarios, especially during combined wetter and hotter winters and springs, which elevated headwater N2O emissions by 40 %. Moreover, when coupling these conditions with a 20 % increase in fertilizer rates, riverine N2O emissions would be boosted by 83 %. These findings underscore the importance of integrating land-surface and river processes, to effectively quantify the feedback loop between river nutrient enrichment and climate change under the influence of agricultural practices, and to support comprehensive mitigation strategies under the warming climate.", "keywords": ["Agriculture and Food Sciences", "Hybrid modeling", "Riverine nitrous oxide dynamics", "PROTOCOL", "CLIMATE-CHANGE", "IMPACT", "Agricultural GHG impact", "Climate change", "STREAMS", "PERFORMANCE", "Headwater streams", "OXIDE EMISSIONS"]}, "links": [{"href": "https://doi.org/10.1016/j.watres.2025.123242"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Water%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.watres.2025.123242", "name": "item", "description": "10.1016/j.watres.2025.123242", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.watres.2025.123242"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2025-05-01T00:00:00Z"}}, {"id": "10.1017/s1357729800054643", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:18:13Z", "type": "Journal Article", "created": "2019-05-06", "title": "Ruminal Fermentation, Methanogenesis And Nitrogen Utilization Of Sheep Receiving Tropical Grass Hay-Concentrate Diets Offered With Sapindus Saponaria Fruits And Cratylia Argentea Foliage", "description": "AbstractThe effects of supplementing a tropical, low-quality grass hay (Brachiaria dictyoneura) with legume foliage (Cratylia argentea) or fruits of the multipurpose tree Sapindus saponaria on ruminal fermentation, methane release and nitrogen (N) utilization were evaluated. Six Swiss White Hill lambs were used in a 6 \uffe2\uff9c\uff95 6 Latin-square design with a 3 \uffe2\uff9c\uff95 2 factorial arrangement of treatments with measurements of energy metabolism being conducted using open-circuit respiratory chambers. Treatments consisted of three basal diets, either grass alone or legume: grass ratios of 1: 2 or 2: 1. These basal diets were supplemented (1: 3) with a control concentrate or with a concentrate containing 250 g/kg dry matter ofS. saponariafruits. The apparent total tract digestibilities of organic matter (OM) and neutral-detergent fibre (NDF) were reduced and the proportionate crude protein (CP) losses through faeces were increased (P 0\uffc2\uffb701) by supplementation withS. saponaria, and digestibilities of OM and NDF were linearly reduced (P 0\uffc2\uffb7001) with increasing legume proportion. Body energy retention, however, was similar in all diets. Along with CP intake, the proportionate CP losses through faeces decreased (P 0\uffc2\uffb7001) with increasing legume proportion which was associated with improved (P 0\uffc2\uffb7001) body protein retention and reduced (P 0\uffc2\uffb71) fat retention. Ruminal fluid ammonia concentration was not significantly affected (P > 0\uffc2\uffb71) by the inclusion ofS. saponariain the concentrate, but increased linearly (P 0\uffc2\uffb7001) as dietary legume proportion was elevated. Supplementation with fruits ofS. saponariaincreased (P 0\uffc2\uffb701) total bacteria count, and decreased (P 0\uffc2\uffb7001) total ciliate protozoa count by more than proportionately 0\uffc2\uffb750. Daily methane release was reduced (P 0\uffc2\uffb701) byS. saponariasupplementation in all basal diet types. Although being not clearly affected on a daily basis, methane release relative to body protein retention decreased linearly (P 0\uffc2\uffb705) with increasing legume proportion. The fact that interactions were mostly non-significant (P > 0\uffc2\uffb705) indicates that supplementation withS. saponariafruits is a useful means to reduce methane emission from sheep given both tropical grass-based and grass-legume-based diets. Likewise, including legumes in N-limited tropical diets seems to represent an environmentally friendly way to improve animal productivity.
", "keywords": ["2. Zero hunger", "sheep", "digesti\u00f3n ruminal", "brachiaria dictyoneura", "methane", "0402 animal and dairy science", "ovinos", "saponinas", "04 agricultural and veterinary sciences", "suplementos", "feed crops", "supplements", "metano", "saponins", "sapindus saponaria", "cratylia", "rumen digestion"], "contacts": [{"organization": "Hess, HD, Beuret, RA, Lotscher, M, Hindrichsen, I.K., Machmuller, A, Carulla, Juan E., Lascano, Carlos E., Kreuzer, M.,", "roles": ["creator"]}]}, "links": [{"href": "http://www.veterinaria.unal.edu.co/inv/nutricion/Hess_2004_AS.pdf"}, {"href": "https://doi.org/10.1017/s1357729800054643"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Animal%20Science", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1017/s1357729800054643", "name": "item", "description": "10.1017/s1357729800054643", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1017/s1357729800054643"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2004-04-01T00:00:00Z"}}, {"id": "10.1016/j.yqres.2008.11.006", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-04-03T16:18:08Z", "type": "Journal Article", "created": "2009-01-17", "title": "Local-Scale Spatial Variability Of Soil Organic Carbon And Its Stock In The Hilly Area Of The Loess Plateau, China", "description": "Soil organic carbon (SOC) is one of the key components for assessing soil quality. Meanwhile, the changes in the stocks SOC may have large potential impact on global climate. It is increasingly important to estimate the SOC stock precisely and to investigate its variability. In this study, Yangjuangou watershed was selected to investigate the SOC distribution under different land uses. We found that SOC concentration decreased with increasing soil depth under all land uses and was significantly different across the vertical soil profile (P < 0.01). However, considering effect of land use on SOC, it is only significant (P < 0.01) in the topsoil (0\uffe2\uff80\uff935 cm) layer. This indicated that land use has a large effect on the stocks of SOC in the surface soil. The stratification ratio of SOC > 1.2 may mean that soil quality is improving. The order of the SOC density (0\uffe2\uff80\uff9330 cm) under different land uses is forestland > orchard land > grassland > immature forestland > terraced cropland. The SOC stock is found to be as large as 2.67 \uffc3\uff97 10 t (0\uffe2\uff80\uff9330 cm) in this watershed. Considering time effect of restoration, the slope cropland just abandoned is more efficient for SOC accumulation than trees planted in the semi-arid hilly loess area.
", "keywords": ["2. Zero hunger", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "6. Clean water"], "contacts": [{"organization": "Bojie Fu, Yihe L\u00fc, Yafeng Wang, Cheng-Jun Song, Yong Luan,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.yqres.2008.11.006"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Quaternary%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.yqres.2008.11.006", "name": "item", "description": "10.1016/j.yqres.2008.11.006", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.yqres.2008.11.006"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2010-01-01T00:00:00Z"}}, {"id": "10.1017/s0014479700007791", "type": "Feature", "geometry": null, "properties": {"license": "Closed Access", "updated": "2026-04-03T16:18:10Z", "type": "Journal Article", "created": "2008-10-03", "title": "Studies In Mixed Cropping. Ii. Population Pressures In Maize\u2013Bean Mixtures", "description": "SUMMARYAn experiment at the Kabete Field Station of the University of Nairobi compared maize\uffe2\uff80\uff93bean mixtures with pure stands of the two crops at three plant densities. Although the mixtures gave an apparent yield advantage over pure stands, this could be explained solely by the increased population pressure in the mixtures. The implication of this finding for other published work with cereal\uffe2\uff80\uff93legume mixtures is discussed, and a distinction is drawn between those sites in East Africa where a conclusive yield advantage from mixed cropping has been found and those where any apparent advantage might be explained by the higher population pressure.
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