Comprehensive experimental quantification and mapping of the aggregation and dispersion state of engineered nanoparticles (NPs) in the presence of humic substances is a great challenge. Dissipative particle dynamic (DPD) simulation was adopted to investigate the aggregation and dispersion mechanisms of NPs in the presence of a humic substance analog. Twelve different types of NPs including 2 metal-based NPs, 7 metal oxide-based NPs, and 3 carbon-based NPs in pure water (pH 3.0) and algae medium (pH 8.0) in the presence of a humic substance analogy were selected for experimental verification of the DPD simulation results. In agreement with results obtained with dynamic light scattering and phase analysis light scattering techniques, the simulations demonstrated that the presence of humic substances reduced the aggregation extent of the NPs. The DPD simulations showed that the stability and dispersity of the NPs increased first, and then decreased with increasing concentrations of humic substances. Moreover, there existed a concentration of humic substances where the NPs became more stable and more dispersed, which was experimentally verified in the case of all the NPs in the pure water and in the algae medium. Furthermore, theory and simulation indicate that both hydrophobic and hydrogen interaction play an important role in controlling the formation of NP aggregates in the presence of humic substances. Electrostatic interaction and steric repulsion are the main mechanisms underlying the effects of humic substances on the aqueous dispersion stability of NPs. Environ Toxicol Chem 2018;37:1024\uffe2\uff80\uff931031. \uffc2\uffa9 2017 SETAC
", "keywords": ["13. Climate action", "Static Electricity", "Nanoparticles", "Nanotechnology", "Water", "Computer Simulation", "14. Life underwater", "Hydrogen-Ion Concentration", "Particle Size", "Hydrophobic and Hydrophilic Interactions", "01 natural sciences", "Humic Substances", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://setac.onlinelibrary.wiley.com/doi/pdf/10.1002/etc.4059"}, {"href": "https://doi.org/10.1002/etc.4059"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Toxicology%20and%20Chemistry", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1002/etc.4059", "name": "item", "description": "10.1002/etc.4059", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1002/etc.4059"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2017-12-14T00:00:00Z"}}, {"id": "10.1002/jsfa.11205", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:13:58Z", "type": "Journal Article", "created": "2021-03-12", "title": "A novel ammoniation treatment of barley as a strategy to optimize rumen pH, feed degradability and microbial protein synthesis", "description": "AbstractBACKGROUNDMeeting the energy and nitrogen (N) requirements of high\uffe2\uff80\uff90performing ruminants at the same time as avoiding digestive disturbances (i.e. rumen acidosis) is a key priority in ruminant nutrition. The present study evaluated the effect of a cereal ammoniation treatment, in which barley grains are combined with urea and enzymes that catalyze the conversion of urea to ammonia to optimize rumen function. Twelve rumen cannulated sheep were randomly divided into two groups and fed a diet containing 60% of ammoniated barley (AMM) or untreated barley supplemented with urea (CTL) to investigate the impact on rumen fermentation and feed utilization.
RESULTSAMM had higher total N content and effective rumen degradable N than untreated barely. AMM sheep had a consistently higher rumen pH throughout the day (6.31 versus 6.03) and tended to have a lower post\uffe2\uff80\uff90prandial ammonia peak and higher acetate molar proportion (+5.1%) than CTL sheep. The rumen environment in AMM sheep favored the colonization and utilization of agro\uffe2\uff80\uff90industrial by\uffe2\uff80\uff90products (i.e. orange pulp) by the rumen microbes leading to a higher feed degradability. AMM sheep also had higher total tract apparent N digestibility (+21.7%) and urinary excretion of purine derivatives (+34%), suggesting a higher N uptake and microbial protein synthesis than CTL sheep.
CONCLUSIONThe inclusion of AMM in the diet of ruminants represents a valid strategy for maintaining rumen pH within a physiological range and improving N utilization by the rumen microbes, which could have positive effects on the health and productivity of animals in intensive production systems. These findings warrant further studies under conventional farm conditions. \uffc2\uffa9 2021 The Authors. Journal of The Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
", "keywords": ["2. Zero hunger", "Rumen", "Sheep", "Bacteria", "Food Handling", "0402 animal and dairy science", "Hordeum", "04 agricultural and veterinary sciences", "Hydrogen-Ion Concentration", "Animal Feed", "Diet", "Gastrointestinal Microbiome", "Bacterial Proteins", "Ammonia", "Barley", "Rumen fermentation", "Animals", "Urea", "Ammoniation", "Digestion", "Feed utilization", "Research Articles"]}, "links": [{"href": "https://eprints.gla.ac.uk/235892/1/235892.pdf"}, {"href": "https://onlinelibrary.wiley.com/doi/pdf/10.1002/jsfa.11205"}, {"href": "https://doi.org/10.1002/jsfa.11205"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20the%20Science%20of%20Food%20and%20Agriculture", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1002/jsfa.11205", "name": "item", "description": "10.1002/jsfa.11205", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1002/jsfa.11205"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-03-24T00:00:00Z"}}, {"id": "10.1002/jsfa.4349", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:13:58Z", "type": "Journal Article", "created": "2011-03-29", "title": "Efficiency Of Urease And Nitrification Inhibitors In Reducing Ammonia Volatilization From Diverse Nitrogen Fertilizers Applied To Different Soil Types And Wheat Straw Mulching", "description": "Some authors suggest that the absence of tillage in agricultural soils might have an influence on the efficiency of nitrogen applied in the soil surface. In this study we investigate the influence of no-tillage and soil characteristics on the efficiency of a urease inhibitor (N-(n-butyl)thiophosphoric triamide, NBPT) and a nitrification inhibitor (diciandiamide, DCD) in decreasing ammonia volatilization from urea and ammonium nitrate (AN), respectively.The results indicate that ammonia volatilization in soils amended with urea was significantly higher than in those fertilized with AN. Likewise, the main soil factors affecting ammonia volatilization from urea are clay and sand soil contents. While clay impedes ammonia volatilization, sand favours it. The presence of organic residues on soil surface (no-tillage) tends to increase ammonia volatilization from urea, although this fact depended on soil type. The presence of NBPT in urea fertilizer significantly reduced soil ammonia volatilization. This action of NBPT was negatively affected by acid soil pH and favoured by soil clay content.The presence of organic residues on soil surface amended with urea increased ammonia volatilization, and was particularly high in sandy compared with clay soils. Application of NBPT reduced ammonia volatilization although its efficiency is reduced in acid soils. Concerning AN fertilization, there were no differences in ammonia volatilization with or without DCD in no-tillage soils.", "keywords": ["2. Zero hunger", "Nitrates", "Plant Stems", "Nitrogen", "Agriculture", "04 agricultural and veterinary sciences", "Hydrogen-Ion Concentration", "Silicon Dioxide", "Nitrification", "Urease", "6. Clean water", "Soil", "Organophosphorus Compounds", "Ammonia", "Clay", "Urea", "0401 agriculture", " forestry", " and fisheries", "Aluminum Silicates", "Enzyme Inhibitors", "Volatilization", "Fertilizers", "Humic Substances", "Triticum"]}, "links": [{"href": "https://doi.org/10.1002/jsfa.4349"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20the%20Science%20of%20Food%20and%20Agriculture", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1002/jsfa.4349", "name": "item", "description": "10.1002/jsfa.4349", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1002/jsfa.4349"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2011-03-29T00:00:00Z"}}, {"id": "10.1016/j.ecoenv.2020.111380", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:15:43Z", "type": "Journal Article", "created": "2020-10-01", "title": "Effect of the growth medium composition on nitrate accumulation in the novel protein crop Lemna minor", "description": "Duckweed is a potential alternative protein source for food and feed. However, little is known about the nitrate accumulation in this plant. A high nitrate level in vegetables can indirectly lead to an elevated intake of nitrites and N-nitroso compounds, increasing the risk of diseases for humans and animals. This research hypothesizes that the nitrate accumulation of Lemna minor differs between growing media. Additionally, it evaluates whether legal safety levels of nitrate for human and animal intake are exceeded. The duckweed was grown on (i) rainwater, and (ii) three synthetic media containing different nutrient levels. Furthermore, (iii) biological effluent of swine manure treatment and (iv) aquaculture effluent from pikeperch production were used, as these are potential media for closing nutrient loops in the agriculture sector. It was found that nitrate levels increased with the increasing availability of macronutrients in the water, and pH showed a particularly strong negative correlation with the nitrate levels in the plant. Nevertheless, nitrate content never exceeded 530\u00a0mg NO3 kg-1 fresh weight. To conclude, Lemna minor's nitrate content was below safety limits for human consumption in all tested growing media; however, a potential risk for ruminants was observed as these are more sensitive to nitrate conversions in their gastro-intestinal track.", "keywords": ["Agriculture and Food Sciences", "0106 biological sciences", "0301 basic medicine", "SAMPLES", "Wastewater", "NUTRIENTS", "01 natural sciences", "Food safety", "BIOMASS", "03 medical and health sciences", "Crude protein", "Vegetables", "Lemnaceae", "Animals", "Araceae", "Humans", "Toxicology and Mutagenesis", "PLANT", "FRUITS", "VEGETABLES", "2. Zero hunger", "Nitrates", "Environmental and Occupational Health", "Agricultural effluents", "NITRITE CONTENT", "Agriculture", "General Medicine", "Hydrogen-Ion Concentration", "Pollution", "DUCKWEEDS LEMNACEAE", "6. Clean water", "Culture Media", "NITROGEN", "Feed safety", "Health", "Public Health", "Dietary Proteins"]}, "links": [{"href": "https://doi.org/10.1016/j.ecoenv.2020.111380"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Ecotoxicology%20and%20Environmental%20Safety", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.ecoenv.2020.111380", "name": "item", "description": "10.1016/j.ecoenv.2020.111380", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.ecoenv.2020.111380"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-12-01T00:00:00Z"}}, {"id": "10.1007/s00114-021-01748-8", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:14:12Z", "type": "Journal Article", "created": "2021-09-07", "title": "Societal importance of Antarctic negative feedbacks on climate change: blue carbon gains from sea ice, ice shelf and glacier losses", "description": "AbstractDiminishing prospects for environmental preservation under climate change are intensifying efforts to boost capture, storage and sequestration (long-term burial) of carbon. However, as Earth\uffe2\uff80\uff99s biological carbon sinks also shrink, remediation has become a key part of the narrative for terrestrial ecosystems. In contrast, blue carbon on polar continental shelves have stronger pathways to sequestration and have increased with climate-forced marine ice losses\uffe2\uff80\uff94becoming the largest known natural negative feedback on climate change. Here we explore the size and complex dynamics of blue carbon gains with spatiotemporal changes in sea ice (60\uffe2\uff80\uff93100 MtCyear\uffe2\uff88\uff921), ice shelves (4\uffe2\uff80\uff9340 MtCyear\uffe2\uff88\uff921\uffe2\uff80\uff89=\uffe2\uff80\uff89giant iceberg generation) and glacier retreat (<\uffe2\uff80\uff891 MtCyear\uffe2\uff88\uff921). Estimates suggest that, amongst these, reduced duration of seasonal sea ice is most important. Decreasing sea ice extent drives longer (not necessarily larger biomass) smaller cell-sized phytoplankton blooms, increasing growth of many primary consumers and benthic carbon storage\uffe2\uff80\uff94where sequestration chances are maximal. However, sea ice losses also create positive feedbacks in shallow waters through increased iceberg movement and scouring of benthos. Unlike loss of sea ice, which enhances existing sinks, ice shelf losses generate brand new carbon sinks both where giant icebergs were, and in their wake. These also generate small positive feedbacks from scouring, minimised by repeat scouring at biodiversity hotspots. Blue carbon change from glacier retreat has been least well quantified, and although emerging fjords are small areas, they have high storage-sequestration conversion efficiencies, whilst blue carbon in polar waters faces many diverse and complex stressors. The identity of these are known (e.g. fishing, warming, ocean acidification, non-indigenous species and plastic pollution) but not their magnitude of impact. In order to mediate multiple stressors, research should focus on wider verification of blue carbon gains, projecting future change, and the broader environmental and economic benefits to safeguard blue carbon ecosystems through law.38). According to a principal component analysis, the soil C-to-N ratio was as good as predictor of microbial community structure as pH. Our study thus indicated the soil C-to-N ratio, and the response of trees to this ratio, as important factors that together with soil pH influence soil microbial community composition.", "keywords": ["Sweden", "Soil", "Bacteria", "Nitrogen", "Mycorrhizae", "Fatty Acids", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "Hydrogen-Ion Concentration", "15. Life on land", "Carbon", "Soil Microbiology", "Trees"]}, "links": [{"href": "https://doi.org/10.1007/s00442-006-0562-5"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Oecologia", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s00442-006-0562-5", "name": "item", "description": "10.1007/s00442-006-0562-5", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s00442-006-0562-5"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-10-11T00:00:00Z"}}, {"id": "10.1007/s00572-016-0694-3", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:14:25Z", "type": "Journal Article", "created": "2016-04-14", "title": "Organic Amendments Increase Phylogenetic Diversity Of Arbuscular Mycorrhizal Fungi In Acid Soil Contaminated By Trace Elements", "description": "In 1998, a toxic mine spill polluted a 55-km(2) area in a basin southward to Do\u00f1ana National Park (Spain). Subsequent attempts to restore those trace element-contaminated soils have involved physical, chemical, or biological methodologies. In this study, the restoration approach included application of different types and doses of organic amendments: biosolid compost (BC) and leonardite (LEO). Twelve years after the last addition, molecular analyses of arbuscular mycorrhizal (AM) fungal communities associated with target plants (Lamarckia aurea and Chrysanthemum coronarium) as well as analyses of trace element concentrations both in soil and in plants were performed. The results showed an improved soil quality reflected by an increase in soil pH and a decrease in trace element availability as a result of the amendments and dosages. Additionally, the phylogenetic diversity of the AM fungal community increased, reaching the maximum diversity at the highest dose of BC. Trace element concentration was considered the predominant soil factor determining the AM fungal community composition. Thereby, the studied AM fungal community reflects a community adapted to different levels of contamination as a result of the amendments. The study highlights the long-term effect of the amendments in stabilizing the soil system.", "keywords": ["2. Zero hunger", "0301 basic medicine", "Minerals", "0303 health sciences", "Bioindicator", "Chrysanthemum", "Genetic Variation", "Hydrogen-Ion Concentration", "15. Life on land", "Poaceae", "Soil biodiversity", "Trace element contaminated soils", "Ecosystem restoration", "Mining", "Soil fungal community", "Trace Elements", "Soil", "03 medical and health sciences", "Biodegradation", " Environmental", "13. Climate action", "Mycorrhizae", "Mine spill", "Bioindicators", "Soil Pollutants", "Phylogeny"]}, "links": [{"href": "https://doi.org/10.1007/s00572-016-0694-3"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Mycorrhiza", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s00572-016-0694-3", "name": "item", "description": "10.1007/s00572-016-0694-3", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s00572-016-0694-3"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2016-04-12T00:00:00Z"}}, {"id": "10.1007/s10661-015-4492-8", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:14:38Z", "type": "Journal Article", "created": "2015-04-17", "title": "Effects Of Simulated Acid Rain On Soil And Soil Solution Chemistry In A Monsoon Evergreen Broad-Leaved Forest In Southern China", "description": "Acid rain is an environmental problem of increasing concern in China. In this study, a laboratory leaching column experiment with acid forest soil was set up to investigate the responses of soil and soil solution chemistry to simulated acid rain (SAR). Five pH levels of SAR were set: 2.5, 3.0, 3.5, 4.0, and 4.5 (as a control, CK). The results showed that soil acidification would occur when the pH of SAR was \u22643.5. The concentrations of NO\u2083(-)and Ca(2+) in the soil increased significantly when the pH of SAR fell 3.5. The concentration of SO\u2084(2-) in the soil increased significantly when the pH of SAR was <4.0. The effects of SAR on soil solution chemistry became increasingly apparent as the experiment proceeded (except for Na(+) and dissolved organic carbon (DOC)). The net exports of NO\u2083(-), SO\u2084(2-), Mg(2+), and Ca(2+) increased about 42-86% under pH 2.5 treatment as compared to CK. The Ca(2+) was sensitive to SAR, and the soil could release Ca(2+) through mineral weathering to mitigate soil acidification. The concentration of exchangeable Al(3+) in the soil increased with increasing the acidity of SAR. The releases of soluble Al and Fe were SAR pH dependent, and their net exports under pH 2.5 treatment were 19.6 and 5.5 times, respectively, higher than that under CK. The net export of DOC was reduced by 12-29% under SAR treatments as compared to CK. Our results indicate the chemical constituents in the soil are more sensitive to SAR than those in the soil solution, and the effects of SAR on soil solution chemistry depend not only on the intensity of SAR but also on the duration of SAR addition. The soil and soil solution chemistry in this region may not be affected by current precipitation (pH\u22484.5) in short term, but the soil and soil leachate chemistry may change dramatically if the pH of precipitation were below 3.5 and 3.0, respectively.", "keywords": ["China", "Acid Rain", "04 agricultural and veterinary sciences", "Forests", "Hydrogen-Ion Concentration", "15. Life on land", "01 natural sciences", "6. Clean water", "3. Good health", "Soil", "13. Climate action", "Soil Pollutants", "0401 agriculture", " forestry", " and fisheries", "Environmental Monitoring", "0105 earth and related environmental sciences"], "contacts": [{"organization": "Juxiu Liu, Guoyi Zhou, Deqiang Zhang, Guowei Chu, Guohua Liang, Qingyan Qiu, Jianping Wu,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1007/s10661-015-4492-8"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Monitoring%20and%20Assessment", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s10661-015-4492-8", "name": "item", "description": "10.1007/s10661-015-4492-8", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s10661-015-4492-8"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2015-04-18T00:00:00Z"}}, {"id": "10.1016/j.scitotenv.2006.08.032", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:16:39Z", "type": "Journal Article", "created": "2006-09-27", "title": "Seasonal Variations In Decomposition Processes In A Valley-Bottom Riparian Peatland", "description": "A year-long field survey was carried out at a valley-bottom riparian peatland site in North Wales, UK from January 2002 to December 2002 to examine the seasonal variation of decomposition processes and dissolved organic carbon (DOC) concentrations. Peat temperature, physicochemistry, organic carbon pools, basal CO(2) respiration and extracellular enzyme activities (beta-glucosidase, phosphatase, sulphatase and phenol oxidase) were monitored monthly. The results of a principle component eigenanalysis of field data show that concentrations of basal CO(2) respiration, soil solution DOC and phenolics were positively correlated to soil temperature (P<0.01, F=12.25; P<0.001, F=59.8; P<0.001, F=141.27) with Q(10) responses of 2.29, 6.42 and 14.42, respectively. Extracellular enzyme activities, however, were more strongly associated with seasonal changes in ion concentrations and did not correspond significantly to temperature alone suggesting limitations attributable to a combination of continuous anaerobiosis and/or the suppressive compounds. Restraints on soil enzyme activities may limit the loss of CO(2) from the microbial community that is dependent on soil enzyme activities for nutrient availability. The seasonal effect of temperature on DOC may be explained by increased plant rhizodeposition and microbial activity. These results do not imply that the long-term increasing trend in DOC export is explainable by temperature increase but suggest that temperature may be a key factor regulating the seasonal variation in DOC concentrations. Thus, seasonal temperature effects on DOC may represent an important component of long-term models of DOC export.", "keywords": ["Wales", "phenolics", "Climate", "beta-Glucosidase", "Temperature", "04 agricultural and veterinary sciences", "DOC", "Carbon Dioxide", "Hydrogen-Ion Concentration", "15. Life on land", "01 natural sciences", "Carbon", "Phosphoric Monoester Hydrolases", "Soil", "Phenols", "13. Climate action", "basal respiration", "0401 agriculture", " forestry", " and fisheries", "peatland", "Seasons", "Sulfatases", "soil enzymes", "Soil Microbiology", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.scitotenv.2006.08.032"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Science%20of%20The%20Total%20Environment", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.scitotenv.2006.08.032", "name": "item", "description": "10.1016/j.scitotenv.2006.08.032", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.scitotenv.2006.08.032"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-11-01T00:00:00Z"}}, {"id": "10.1007/s12275-011-0421-x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:15:03Z", "type": "Journal Article", "created": "2011-06-30", "title": "The Impacts Of Excessive Nitrogen Additions On Enzyme Activities And Nutrient Leaching In Two Contrasting Forest Soils", "description": "Nitrogen (N) deposition has increased dramatically worldwide, which may affect forest soils in various ways. In this study, we conducted a short-term manipulation experiment of N addition on two types of forest soils (urban and rural soils) found in Korea. N addition significantly decreased phenol oxidase activities in urban soil samples; however, it did not affect those in rural soils. Furthermore, N addition did not change \u03b2-glucosidase and N-acetylglucosaminidase activities, except for \u03b2-glucosidase activities in the O layer of rural soils. Changes in microbial biomass and general activity (dehydrogenase activity) were not induced by N addition, except for dehydrogenase in the A layer of urban soils. Although N addition did not change the extractable soil nutrients, organic matter, and water contents significantly, it enhanced nutrient leaching and resulted in lower pH leachate. These results suggest that excessive N addition to forest soils may induce nutrient leaching in the long-term. Overall results of our study also suggest that N addition may induce retardation of organic matter decomposition in soils; however, such a response may depend on the intensity of previous exposure to N deposition.", "keywords": ["2. Zero hunger", "Nitrogen", "04 agricultural and veterinary sciences", "Hydrogen-Ion Concentration", "15. Life on land", "6. Clean water", "Enzymes", "Trees", "Soil", "13. Climate action", "Republic of Korea", "11. Sustainability", "0401 agriculture", " forestry", " and fisheries", "Soil Microbiology"]}, "links": [{"href": "https://doi.org/10.1007/s12275-011-0421-x"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/The%20Journal%20of%20Microbiology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s12275-011-0421-x", "name": "item", "description": "10.1007/s12275-011-0421-x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s12275-011-0421-x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2011-06-01T00:00:00Z"}}, {"id": "10.1016/j.chemosphere.2010.08.026", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:15:40Z", "type": "Journal Article", "created": "2010-09-13", "title": "Optimization Of Pig Slurry Application To Heavy Metal Polluted Soils Monitoring Nitrification Processes", "description": "Nitrification is often negatively affected by heavy metal pollution in soils, this limiting land revegetation. Thus, the potential use of pig slurry as a nitrogen-rich organic amendment in different heavy metal contaminated soils has been evaluated; this also being a way of recycling this waste. In order to identify the factors affecting nitrification processes in heavy metal polluted soils (soil pH, heavy metal solubility and the N source), incubation experiments were run using two polluted soils with different pH values (5.0 and 7.1) and a non-contaminated soil (pH 8.2). Ammonium was added as pig slurry or as ammonium sulphate for comparison (both added at 150 mg NH(4)(+)-N kg(-1) of soil). Pig slurry provoked higher nitrification rates and N-immobilisation than ammonium sulphate, especially in the neutral-polluted soil, reflecting an improvement of the microbial activity in the soil. The microbial immobilisation of N led to an inverse relationship between the amount of N added and nitrate conversion in the neutral-polluted soil and in the non-contaminated soil amended with different pig slurry dosages (75, 150 and 225mg NH(4)(+)-N kg(-1) of soil). Low rates of nitrification and N-immobilisation were found in the acidic soil. Pig slurry addition to metal polluted soils enhanced soil nitrification, especially when metals were in low-solubility forms.", "keywords": ["[SDE] Environmental Sciences", "2. Zero hunger", "PIG SLURRY RECYCLING", "SOIL RECLAMATION", "Nitrogen", "Swine", "METAL SOLUBILITY", "04 agricultural and veterinary sciences", "Hydrogen-Ion Concentration", "15. Life on land", "NITRIFICATION", "6. Clean water", "12. Responsible consumption", "Manure", "Quaternary Ammonium Compounds", "MICROBIAL IMMOBILISATION", "Biodegradation", " Environmental", "13. Climate action", "METAL", "Metals", " Heavy", "Animals", "Soil Pollutants", "0401 agriculture", " forestry", " and fisheries", "Soil Microbiology"]}, "links": [{"href": "https://doi.org/10.1016/j.chemosphere.2010.08.026"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Chemosphere", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.chemosphere.2010.08.026", "name": "item", "description": "10.1016/j.chemosphere.2010.08.026", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.chemosphere.2010.08.026"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2010-10-01T00:00:00Z"}}, {"id": "10.1016/j.chemosphere.2015.07.063", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:15:40Z", "type": "Journal Article", "created": "2015-08-03", "title": "Changes In The Chemical Composition Of An Acidic Soil Treated With Marble Quarry And Marble Cutting Wastes", "description": "Soil acidity greatly affects the availability of plant nutrients. The level of soil acidity can be adjusted by treating the soil with certain additives. The objective of this study was to determine the effect of marble quarry waste (MQW) and marble cutting waste (MCW) on the chemical composition and the acidity of a soil. Marble wastes at different rates were applied to an acid soil. Their effectiveness in neutralizing the soil pH was compared with that of agricultural lime. The changes in the chemical composition of the soil were also evaluated with column test at the end of a 75-day incubation period. The results indicated that the MQW and MCW applications significantly increased the soil pH (from 4.71 up to 6.54), the CaCO3 content (from 0.33% up to 0.75%), and the exchangeable Ca (from 14.79 cmol kg(-1) up to 21.18 cmol kg(-1)) and Na (from 0.57 cmol kg(-1) up to 1.07 cmol kg(-1)) contents, but decreased the exchangeable K (from 0.46 cmol kg(-1) down to 0.28 cmol kg(-1)), the plant-available P (from 25.56 mg L(-1) down to 16.62 mg L(-1)), and the extractable Fe (from 259.43 mg L(-1) down to 55.4 mg L(-1)), Cu (from 1.97 mg L(-1) down to 1.42 mg L(-1)), Mn (from 17.89 mg L(-1) down to 4.61 mg L(-1)) and Zn (from 7.88 mg L(-1) down to 1.56 mg L(-1)) contents. In addition, the Cd (from 0.060 mg L(-1) down to 0.046 mg L(-1)), Ni (from 0.337 mg L(-1) down to 0.092 mg L(-1)) and Pb (from 28.00 mg L(-1) down to 20.08 mg L(-1)) concentrations decreased upon the treatment of the soil with marble wastes.", "keywords": ["Soil", "13. Climate action", "Industrial Waste", "0401 agriculture", " forestry", " and fisheries", "Agriculture", "04 agricultural and veterinary sciences", "Hydrogen-Ion Concentration", "01 natural sciences", "6. Clean water", "Calcium Carbonate", "0105 earth and related environmental sciences"], "contacts": [{"organization": "\u00d6ZTA\u015e, Ta\u015fk\u0131n, AROL, AL\u0130 \u0130HSAN, KALKAN, Ekrem, Tozsin, G\u00fcl\u015fen,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.chemosphere.2015.07.063"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Chemosphere", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.chemosphere.2015.07.063", "name": "item", "description": "10.1016/j.chemosphere.2015.07.063", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.chemosphere.2015.07.063"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2015-11-01T00:00:00Z"}}, {"id": "10.1016/j.chemosphere.2019.03.190", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:15:41Z", "type": "Journal Article", "created": "2019-04-01", "title": "Dissolution and aggregation kinetics of zero valent copper nanoparticles in (simulated) natural surface waters: Simultaneous effects of pH, NOM and ionic strength", "description": "The combined effects of pH, dissolved organic carbon (DOC) and Ca2+/Mg2+ on the dissolution and aggregation kinetics of zero valent copper engineered nanoparticles (Cu0 ENPs) were investigated. The dissolution and aggregation of the particles were studied in (a) synthetic aqueous media, similar in chemistry to natural surface waters, and (b) natural surface waters samples, for up to 32 or 24\u202fh. The DOC stabilized the particles and prevented aggregation, and thus increased the available surface area. The higher available surface area in turn accelerated the dissolution of the particles. The presence of Ca2+/Mg2+, however, changed the aggregation and the dissolution of the DOC-stabilized particles. The influence of Ca2+/Mg2+ on DOC-stabilized particles was different at different pH's. In the absence of DOC, 10\u202fmM of Ca2+/Mg2+ induced charge reversal on the particles and caused particle stability against aggregation. This subsequently increased particles dissolution. The results obtained with regard to dissolution and aggregation of the particles in natural surface waters were compared with those determined for the synthetic waters. This comparison showed that the behavior of the particles in the natural surface waters was mostly similar to the behavior determined for media at pH 9. Overall, the current study provides some novel insights into the simultaneous effects of physicochemical parameters of water on particle stability against aggregation and dissolution, and provides data about how the processes of aggregation and dissolution of Cu0 ENPs interact and jointly determine the overall particle fate.", "keywords": ["Cations", " Divalent", "Environmental fate", "Osmolar Concentration", "0211 other engineering and technologies", "Metal Nanoparticles", "Fresh Water", "02 engineering and technology", "Hydrogen-Ion Concentration", "01 natural sciences", "Physico-chemical parameters", "6. Clean water", "Aggregation", "Kinetics", "Solubility", "Aggregation; Complexation; Copper nanoparticles; Dissolution; Environmental fate; Natural water; Physico-chemical parameters", "Complexation", "Natural water", "Calcium", "Magnesium", "Copper nanoparticles", "Organic Chemicals", "Dissolution", "Copper", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.chemosphere.2019.03.190"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Chemosphere", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.chemosphere.2019.03.190", "name": "item", "description": "10.1016/j.chemosphere.2019.03.190", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.chemosphere.2019.03.190"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-07-01T00:00:00Z"}}, {"id": "10.1016/j.chemosphere.2020.128102", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:15:41Z", "type": "Journal Article", "created": "2020-09-12", "title": "Effect of high hydrostatic pressure-assisted pectinase modification on the Pb2+ adsorption capacity of pectin isolated from sweet potato residue", "description": "Novel pectin derived from sweet potato residue was modified by high hydrostatic pressure (HHP)-assisted pectinase and then used for Pb2+ removal from aqueous solutions. The removal characteristics and mechanisms were also investigated. Results showed that modified sweet potato pectin exhibited greater adsorption performances for Pb2+ than that of natural ones, and showed excellent eco-friendly properties and good potential for adsorption of some other heavy metals (such as Cu2+). The adsorption curves were much more conformed to Langmuir model, and the highest capacity for Pb2+ adsorption was 263.15\u00a0mg/g with 1.00% pectin at pH 7. Chemical adsorption process of pectin for Pb2+ absorption involved O-containing functional groups (O-H, COO-), cation exchange, and along with electrostatic interactions. Overall, the results in this study indicated that sweet potato pectin modified with HHP-assisted pectinase had the potential to become an environmentally friendly coagulant-flocculant agent for the heavy metal adsorption, especially for Pb2+.", "keywords": ["02 engineering and technology", "Hydrogen-Ion Concentration", "Wastewater", "01 natural sciences", "Water Purification", "Kinetics", "Polygalacturonase", "Lead", "Hydrostatic Pressure", "Pectins", "Adsorption", "Ipomoea batatas", "0210 nano-technology", "Water Pollutants", " Chemical", "0105 earth and related environmental sciences"], "contacts": [{"organization": "Mudugamuwa Arachchige, Melani Purnika, Mu, Taihua, Ma, Mengmei,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.chemosphere.2020.128102"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Chemosphere", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.chemosphere.2020.128102", "name": "item", "description": "10.1016/j.chemosphere.2020.128102", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.chemosphere.2020.128102"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-01-01T00:00:00Z"}}, {"id": "10.1016/j.envpol.2005.03.013", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:15:55Z", "type": "Journal Article", "created": "2005-07-06", "title": "Effect Of Soil Characteristics On Cd Uptake By The Hyperaccumulator Thlaspi Caerulescens", "description": "The influence of soil characteristics on the phytoremediation potential of Thlaspi caerulescens is not well understood. We investigated the effect of soil pH and Cd concentration on plant Cd uptake on one soil type, and the variation in Cd uptake using a range of field contaminated soils. On soils with total Cd concentrations of 0.6-3.7 mg kg(-1), T. caerulescens (the Ganges ecotype) produced greater biomass in the pH range 5.1-7.6 than at pH 4.4. The highest plant Cd concentration (236 mg kg(-1)) and Cd uptake (228 microg pot(-1)) were observed at pH 5.1. On soils with total Cd concentrations of 2.6-314.8 mg kg(-1), shoot Cd concentrations were 10.9-1,196 mg kg(-1). Multiple regression analysis indicated that higher Cd in soil, low pH (within the range of >5) and coarser texture were associated with higher Cd concentration and Cd uptake by T. caerulescens.", "keywords": ["04 agricultural and veterinary sciences", "Hydrogen-Ion Concentration", "15. Life on land", "01 natural sciences", "Carbon", "6. Clean water", "Thlaspi", "Soil", "Zinc", "Clay", "Soil Pollutants", "0401 agriculture", " forestry", " and fisheries", "Aluminum Silicates", "Biomass", "Plant Shoots", "Cadmium", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.envpol.2005.03.013"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Pollution", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.envpol.2005.03.013", "name": "item", "description": "10.1016/j.envpol.2005.03.013", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.envpol.2005.03.013"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-01-01T00:00:00Z"}}, {"id": "10.1016/j.envpol.2005.10.017", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:15:55Z", "type": "Journal Article", "created": "2005-11-30", "title": "Field Evaluation Of In Situ Remediation Of A Heavy Metal Contaminated Soil Using Lime And Red-Mud", "description": "We evaluated the effectiveness of lime and red mud (by-product of aluminium manufacturing) to reduce metal availability to Festuca rubra and to allow re-vegetation on a highly contaminated brown-field site. Application of both lime and red mud (at 3 or 5%) increased soil pH and decreased metal availability. Festuca rubra failed to establish in the control plots, but grew to a near complete vegetative cover on the amended plots. The most effective treatment in decreasing grass metal concentrations in the first year was 5% red mud, but by year two all amendments were equally effective. In an additional pot experiment, P application in combination with red mud or lime decreased the Pb concentration, but not total uptake of Pb in Festuca rubra compared to red mud alone. The results show that both red mud and lime can be used to remediate a heavily contaminated acid soil to allow re-vegetation.", "keywords": ["Festuca", "Geologic Sediments", "Time Factors", "Lime", "Phosphate", "Phosphorus", "Hydrogen-Ion Concentration", "15. Life on land", "01 natural sciences", "6. Clean water", "Calcium Carbonate", "Heavy metals", "Metals", " Heavy", "Clay", "Soil Pollutants", "Aluminum Silicates", "In situ remediation", "Environmental Restoration and Remediation", "Red mud", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.envpol.2005.10.017"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Pollution", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.envpol.2005.10.017", "name": "item", "description": "10.1016/j.envpol.2005.10.017", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.envpol.2005.10.017"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-08-01T00:00:00Z"}}, {"id": "10.1016/j.envpol.2006.06.002", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:15:55Z", "type": "Journal Article", "created": "2006-09-29", "title": "Growth Of Lygeum Spartum In Acid Mine Tailings: Response Of Plants Developed From Seedlings, Rhizomes And At Field Conditions", "description": "Lygeum spartum is a native species in semiarid Mediterranean areas that grows spontaneously on acid mine tailings. We aimed to study the suitability of this plant for phytostabilization. L. spartum was grown from both seeds and rhizomes in acid mine tailings with various fertilizer and lime treatments. Untreated soils had a solution pH of 2.9 with high concentrations of dissolved salts (Electrical Conductivity 25 dS m(-1)) and Zn (3100 mg L(-1)). Plants grown on untreated soil had high shoot metal concentrations (>4000 mg kg(-1)Zn). Liming increased the solution pH to 5.5 and reduced the dissolved salts by more than 75%, resulting in lower shoot metal accumulation. Plants grown from rhizomes accumulated less metal than those grown from seeds. Plants collected in the field had metal concentrations an order of magnitude less than plants raised in the growth chamber. These differences may be due to the higher moisture content and homogeneous nature of the soils used in the pot experiment.", "keywords": ["Anions", "Waste Products", "Oxides", "04 agricultural and veterinary sciences", "Calcium Compounds", "Hydrogen-Ion Concentration", "15. Life on land", "Poaceae", "Plant Roots", "01 natural sciences", "Mining", "Plant Leaves", "Soil", "Zinc", "Seedlings", "Cations", "Metals", " Heavy", "Soil Pollutants", "0401 agriculture", " forestry", " and fisheries", "Fertilizers", "Plant Shoots", "Rhizome", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.envpol.2006.06.002"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Pollution", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.envpol.2006.06.002", "name": "item", "description": "10.1016/j.envpol.2006.06.002", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.envpol.2006.06.002"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2007-02-01T00:00:00Z"}}, {"id": "10.1016/j.envpol.2006.12.018", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:15:55Z", "type": "Journal Article", "created": "2007-02-21", "title": "Effects Of Metals On Life Cycle Parameters Of The Earthworm Eisenia Fetida Exposed To Field-Contaminated, Metal-Polluted Soils", "description": "Two control and eight field-contaminated, metal-polluted soils were inoculated with Eisenia fetida (Savigny, 1826). Three, 7, 14, 21, 28 and 42 days after inoculation, earthworm survival, body weight, cocoon production and hatching rate were measured. Seventeen metals were analysed in E. fetida tissue, bulk soil and soil solution. Soil organic carbon content, texture, pH and cation exchange capacity were also measured. Cocoon production and hatching rate were more sensitive to adverse conditions than survival or weight change. Soil properties other than metal concentration impacted toxicity. The most toxic soils were organic-poor (1-10 g C kg(-1)), sandy soils (c. 74% sand), with intermediate metal concentrations (e.g. 7150-13,100 mg Pb kg(-1), 2970-53,400 mg Zn kg(-1)). Significant relationships between soil properties and the life cycle parameters were determined. The best coefficients of correlation were generally found for texture, pH, Ag, Cd, Mg, Pb, Tl, and Zn both singularly and in multivariate regressions. Studies that use metal-amended artificial soils are not useful to predict toxicity of field multi-contaminated soils.", "keywords": ["2. Zero hunger", "Hazardous Waste", "Silver", "Reproduction", "Body Weight", "04 agricultural and veterinary sciences", "Hydrogen-Ion Concentration", "15. Life on land", "01 natural sciences", "Mining", "United Kingdom", "6. Clean water", "Zinc", "Lead", "13. Climate action", "Metals", " Heavy", "Toxicity Tests", " Acute", "Animals", "Soil Pollutants", "0401 agriculture", " forestry", " and fisheries", "Magnesium", "Oligochaeta", "Thallium", "Cadmium", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.envpol.2006.12.018"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Pollution", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.envpol.2006.12.018", "name": "item", "description": "10.1016/j.envpol.2006.12.018", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.envpol.2006.12.018"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2007-09-01T00:00:00Z"}}, {"id": "10.1016/j.envpol.2007.06.018", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:15:55Z", "type": "Journal Article", "created": "2007-07-26", "title": "Contribution Of Heavy Metals And As-Loaded Lupin Root Mineralization To The Availability Of The Pollutants In Multi-Contaminated Soils", "description": "White lupin (Lupinus albus L.) is an annual crop that has been used for phytostabilization of acidified multi-contaminated soils. Once the culture cycle is over, after shoot harvesting, a progressive transference of contaminants from roots to soil may take place as decomposition of roots occurs. An incubation experiment with Cu, Zn, Cd, and As-loaded roots of white lupin and soils with different pH values and concentrations of these contaminants from the area affected by a mine spill at Aznalc\u00f3llar (near Seville, Spain) was performed in order to assess the effect of the decomposition of the roots to the pH and (NH4)2SO4-extractable levels of these pollutants in the soils. Pollutants loaded-roots were mineralized (56 d) at a ratio similar to animal manures (15.8-19.4% of total organic carbon) in soil. The estimated root inputs of contaminants in comparison to their extractable concentrations in soil were high, especially in the control, non-contaminated and neutral contaminated soils. However, the extractable concentrations of the toxic elements in the soil were mainly governed by soil pH. Hence, the correction and maintenance of the soil pH within the range 5-6 after lupin culture is essential for long-time phytostabilization of acidified multi-contaminated soils.", "keywords": ["2. Zero hunger", "Hydrogen-Ion Concentration", "15. Life on land", "Plant Roots", "01 natural sciences", "Mining", "6. Clean water", "Arsenic", "Lupinus", "Zinc", "Biodegradation", " Environmental", "Spain", "13. Climate action", "Metals", " Heavy", "Soil Pollutants", "Copper", "Humic Substances", "Cadmium", "Environmental Monitoring", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.envpol.2007.06.018"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Pollution", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.envpol.2007.06.018", "name": "item", "description": "10.1016/j.envpol.2007.06.018", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.envpol.2007.06.018"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2008-03-01T00:00:00Z"}}, {"id": "10.1016/j.envpol.2008.11.050", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:15:56Z", "type": "Journal Article", "created": "2009-01-19", "title": "Ion Activity And Distribution Of Heavy Metals In Acid Mine Drainage Polluted Subtropical Soils", "description": "The oxidative dissolution of mine wastes gives rise to acidic, metal-enriched mine drainage (AMD) and has typically posed an additional risk to the environment. The poly-metallic mine Dabaoshan in South China is an excellent test site to understand the processes affecting the surrounding polluted agricultural fields. Our objectives were firstly to investigate metal ion activity in soil solution, distribution in solid constituents, and spatial distribution in samples, secondly to determine dominant environment factors controlling metal activity in the long-term AMD-polluted subtropical soils. Soil Column Donnan Membrane Technology (SC-DMT) combined with sequential extraction shows that unusually large proportion of the metal ions are present as free ion in the soil solutions. The narrow range of low pH values prevents any pH effects during the binding onto oxides or organic matter. The differences in speciation of the soil solutions may explain the different soil degradation observed between paddy and non-paddy soils.", "keywords": ["China", "Time Factors", "550", "Speciation", "0211 other engineering and technologies", "Industrial Waste", "02 engineering and technology", "Chemical Fractionation", "01 natural sciences", "Mining", "Soil", "Acid mine drainage", "X-Ray Diffraction", "Metals", " Heavy", "Soil Pollutants", "Humic Substances", "0105 earth and related environmental sciences", "Ions", "Hydrogen-Ion Concentration", "15. Life on land", "6. Clean water", "Tropical soils", "13. Climate action", "[SDU.STU] Sciences of the Universe [physics]/Earth Sciences", "Sorption", "Free ion", "Environmental Monitoring"]}, "links": [{"href": "https://doi.org/10.1016/j.envpol.2008.11.050"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Pollution", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.envpol.2008.11.050", "name": "item", "description": "10.1016/j.envpol.2008.11.050", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.envpol.2008.11.050"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2009-04-01T00:00:00Z"}}, {"id": "10.1016/j.envpol.2016.11.048", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:15:56Z", "type": "Journal Article", "created": "2016-11-19", "title": "Influence of bacterial extracellular polymeric substances on the sorption of Zn on \u03b3-alumina: A combination of FTIR and EXAFS studies", "description": "Extracellular polymeric substances (EPS) isolated from bacteria, are abound of functional groups which can react with metals and consequently influence the immobilization of metals. In this study, we combined with Zn K-edge Extended X-ray Absorption Fine Structure (EXAFS), Fourier Transform Infrared (FTIR) spectroscopy, and High-Resolution Transmission Electron Microscopy (HRTEM) techniques to study the effects of EPS isolated from Bacillus subtilis and Pseudomonas putida on Zn sorption on \u03b3-alumina. The results revealed that Zn sorption on aluminum oxide was pH-dependent and significantly influenced by bacterial EPS. At pH 7.5, Zn sorbed on \u03b3-alumina was in the form of Zn-Al layered doubled hydroxide (LDH) precipitates, whereas at pH 5.5, Zn sorbed on \u03b3-alumina was as a Zn-Al bidentate mononuclear surface complex. The amount of sorbed Zn at pH 7.5 was 1.3-3.7 times higher than that at pH 5.5. However, in the presence of 2\u00a0g\u00a0L-1 EPS, regardless of pH conditions and EPS source, Zn\u00a0+\u00a0EPS + \u03b3-alumina ternary complex was formed on the surface of \u03b3-alumina, which resulted in decreased Zn sorption (reduced by 8.4-67.8%) at pH 7.5 and enhanced Zn sorption (increased by 10.0-124.7%) at pH 5.5. The FTIR and EXAFS spectra demonstrated that both the carboxyl and phosphoryl moieties of EPS were crucial in this process. These findings highlight EPS effects on Zn interacts with \u03b3-alumina.", "keywords": ["Polymers", "Pseudomonas putida", "0211 other engineering and technologies", "02 engineering and technology", "Hydrogen-Ion Concentration", "01 natural sciences", "Zinc", "X-Ray Absorption Spectroscopy", "Spectroscopy", " Fourier Transform Infrared", "Aluminum Oxide", "Hydroxides", "Adsorption", "Bacillus subtilis", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.envpol.2016.11.048"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Pollution", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.envpol.2016.11.048", "name": "item", "description": "10.1016/j.envpol.2016.11.048", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.envpol.2016.11.048"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2017-01-01T00:00:00Z"}}, {"id": "10.1016/j.envpol.2017.12.015", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:15:56Z", "type": "Journal Article", "created": "2017-12-21", "title": "Impact of water chemistry on the behavior and fate of copper nanoparticles", "description": "A full-factorial test design was applied to systematically investigate the contribution and significance of water chemistry parameters (pH, divalent cations and dissolved organic carbon (DOC) concentration) and their interactions on the behavior and fate of copper nanoparticles (CuNPs). The total amount of Cu remaining in the water column after 48\u00a0h of incubation was mostly influenced by divalent cation content, DOC concentration and the interaction of divalent cations and DOC. DOC concentration was the predominant factor influencing the dissolution of CuNPs, which was far more important than the effect of pH in the range from 6 to 9 on the dissolution of the CuNPs. The addition of DOC at concentrations ranging from 5 to 50\u00a0mg\u00a0C/L resulted in a 3-5 fold reduction of dissolution of CuNPs after 48\u00a0h of incubation, as compared to the case without addition of DOC. Divalent cation content was found to be the most influential factor regarding aggregation behavior of the particles, followed by DOC concentration and the interaction of divalent cations and DOC. In addition, the aggregation behavior of CuNPs rather than particulate dissolution explained most of the variance in the sedimentation profiles of CuNPs. These results are meaningful for improved understanding and prediction of the behavior and fate of metallic NPs in aqueous environments.", "keywords": ["Cations", " Divalent", "0211 other engineering and technologies", "Metal Nanoparticles", "Water", "Fresh Water", "02 engineering and technology", "Hydrogen-Ion Concentration", "01 natural sciences", "Carbon", "13. Climate action", "Organic Chemicals", "Copper", "Water Pollutants", " Chemical", "Environmental Monitoring", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.envpol.2017.12.015"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Pollution", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.envpol.2017.12.015", "name": "item", "description": "10.1016/j.envpol.2017.12.015", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.envpol.2017.12.015"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2018-03-01T00:00:00Z"}}, {"id": "10.1016/j.foodres.2019.108743", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:16:03Z", "type": "Journal Article", "created": "2019-10-16", "title": "The impact of fermentation on the distribution of cadmium in cacao beans", "description": "A large fraction of the South-American cacao production is affected by new cadmium (Cd) regulations in cacao. This work was set up to characterize the distribution and speciation of Cd within the cacao fruit and to monitor potential Cd redistribution during cacao fermentation. In cacao fruits from four locations, Cd concentrations decreased with testa\u202f>\u202fnib\u202f~\u202fplacenta\u202f~\u202fpod husk\u202f>\u202fmucilage. The distribution of Cd within cacao beans was successfully visualized using laser ablation inductively coupled plasma spectrometry (LA-ICP-MS) and confirmed higher Cd concentrations in the testa than in the nib. Speciation analysis by X-ray absorption spectroscopy (XANES) of unfermented cacao beans revealed that Cd was bound to O/N-ligands in both nib and testa. Fermentation induced an outward Cd migration from the nibs to the testa, i.e. against the total concentration gradient. This migration occurred only if the fermentation was sufficiently extensive to decrease the pH in the nib to <5.0, likely as a result of increased Cd mobility due to organic acid penetration into the nibs. The change in dry weight based nib Cd concentrations during fermentation was, on average, a factor 1.3 decrease. We propose that nib Cd can be reduced if the nib pH is sufficiently acidified during fermentation. However, a balance must be found between flavor development and Cd removal since extreme acidity is detrimental for cacao flavor.", "keywords": ["2. Zero hunger", "Cacao", "0404 agricultural biotechnology", "Fermentation", "Seeds", "Temperature", "04 agricultural and veterinary sciences", "Hydrogen-Ion Concentration", "0405 other agricultural sciences", "[SDV.AEN]Life Sciences [q-bio]/Food and Nutrition", "Cadmium"]}, "links": [{"href": "https://doi.org/10.1016/j.foodres.2019.108743"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Food%20Research%20International", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.foodres.2019.108743", "name": "item", "description": "10.1016/j.foodres.2019.108743", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.foodres.2019.108743"}, {"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": "10.1016/j.jenvman.2010.05.011", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:16:27Z", "type": "Journal Article", "created": "2010-06-11", "title": "Effects Of Liming On Soil Properties And Plant Performance Of Temperate Mountainous Grasslands", "description": "The application of lime or liming materials to acid-soil grasslands might help mitigate soil acidity, a major constraint to forage productivity in many temperate mountainous grasslands. Nowadays, in these mountainous grasslands, it is essential to promote agricultural practices to increase forage yield and nutritive value while preserving biodiversity and agroecosystem functioning. Two different field experiments were conducted in the Gorbeia Natural Park, northern Spain: (i) one in a calcareous mountainous grassland (Arraba) and (ii) the other in a siliceous mountainous grassland (Kurtzegan) to study the effects of a single application of two liming products, i.e. 2429 kg lime (164.3% CaCO(3)) ha(-1) and 4734 kg calcareous sand (84.3% CaCO(3)) ha(-1), applied one month before the beginning of the sheep grazing season (May-October), on soil chemical (pH, organic C, total N, C/N ratio, %Al saturation, Olsen P, exchangeable K(+) and Ca(2+)) and biological parameters (dehydrogenase, beta-glucosidase, urease, acid phosphatase and arylsulphatase activity) as well as on botanical diversity (graminoids, forbs, shrubs) and forage yield and nutritive value (crude protein, modified acid detergent fibre, digestibility). Untreated control plots were also included in the experiment. Soil sampling was carried out at the end of the sheep grazing season (6 months after liming treatment), while botanical composition was determined one year after treatments application. Although no increase in soil pH was observed in Arraba, liming significantly increased dehydrogenase activity (an indicator of soil microbial activity) by 30.4 and 86.7% at Arraba and Kurtzegan site, respectively. Liming treatments significantly improved forage yield and nutritive value in Arraba but not in Kurtzegan. Furthermore, no differences in soil biological quality, evaluated using the 'treated-soil quality index' as proposed in this work, were observed between treated and untreated soils, and between the two different lime treatments (lime, calcareous sand). It was concluded that, in acid-soil temperate mountainous grasslands, moderate liming treatments have no negative short-term effects either on soil quality or botanical composition, while resulting in improvements in forage yield and nutritive value under some conditions.", "keywords": ["2. Zero hunger", "Oxides", "Biodiversity", "04 agricultural and veterinary sciences", "Calcium Compounds", "Hydrogen-Ion Concentration", "15. Life on land", "6. Clean water", "Soil", "Spain", "0401 agriculture", " forestry", " and fisheries", "Oxidoreductases", "Soil Microbiology", "Environmental Monitoring"]}, "links": [{"href": "https://doi.org/10.1016/j.jenvman.2010.05.011"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20Environmental%20Management", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.jenvman.2010.05.011", "name": "item", "description": "10.1016/j.jenvman.2010.05.011", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.jenvman.2010.05.011"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2010-10-01T00:00:00Z"}}, {"id": "10.1016/j.jhazmat.2014.03.017", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:16:29Z", "type": "Journal Article", "created": "2014-03-22", "title": "A Three-Year Experiment Confirms Continuous Immobilization Of Cadmium And Lead In Contaminated Paddy Field With Biochar Amendment", "description": "Heavy metal contamination in croplands has been a serious concern because of its high health risk through soil-food chain transfer. A field experiment was conducted in 2010-2012 in a contaminated rice paddy in southern China to determine if bioavailability of soil Cd and Pb could be reduced while grain yield was sustained over 3 years after a single soil amendment of wheat straw biochar. Contaminated biochar particles were separated from the biochar amended soil and microscopically analyzed to help determine where, and how, metals were immobilized with biochar. Biochar soil amendment (BSA) consistently and significantly increased soil pH, total organic carbon and decreased soil extractable Cd and Pb over the 3 year period. While rice plant tissues' Cd content was significantly reduced, depending on biochar application rate, reduction in plant Pb concentration was found only in root tissue. Analysis of the fresh and contaminated biochar particles indicated that Cd and Pb had probably been bonded with the mineral phases of Al, Fe and P on and around and inside the contaminated biochar particle. Immobilization of the Pb and Cd also occurred to cation exchange on the porous carbon structure.", "keywords": ["China", "anzsrc-for: 4105 Pollution and Contamination", "Soil remediation", "0211 other engineering and technologies", "4102 Ecological Applications", "Aged biochar", "02 engineering and technology", "41 Environmental Sciences", "01 natural sciences", "630", "anzsrc-for: 41 Environmental Sciences", "4105 Pollution and Contamination", "anzsrc-for: 40 Engineering", "Soil", "anzsrc-for: 34 Chemical sciences", "Metals", " Heavy", "Soil Pollutants", "Biomass", "Organic Chemicals", "anzsrc-for: 03 Chemical Sciences", "0105 earth and related environmental sciences", "2. Zero hunger", "anzsrc-for: 05 Environmental Sciences", "Oryza", "Heavy", "Hydrogen-Ion Concentration", "Heavy metal pollution", "anzsrc-for: 4102 Ecological Applications", "Carbon", "6. Clean water", "Biochar", "Lead", "Metals", "13. Climate action", "Charcoal", "Rice paddy", "Adsorption", "anzsrc-for: 09 Engineering", "Cadmium"]}, "links": [{"href": "https://doi.org/10.1016/j.jhazmat.2014.03.017"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20Hazardous%20Materials", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.jhazmat.2014.03.017", "name": "item", "description": "10.1016/j.jhazmat.2014.03.017", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.jhazmat.2014.03.017"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2014-05-01T00:00:00Z"}}, {"id": "10.1016/j.plaphy.2019.05.023", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:16:35Z", "type": "Journal Article", "created": "2019-05-29", "title": "The elemental composition of halophytes correlates with key morphological adaptations and taxonomic groups", "description": "Halophytes are crucial in the light of increasing soil salinization, yet our understanding of their chemical composition and its relationship to key morphological traits such as succulence or salt excretion is limited. This study targets this issue by exploring the relationship between the elemental composition of 108 plant species from saline environments in Iran and their eco-morphological traits and taxonomy. Leaves and/or photosynthetic shoots of individual species and soils were sampled and analyzed for 20 elements in plant samples and 5 major elements plus % gypsum content, pH, and EC in soil samples. Eu-halophytes and leaf- and stem-succulent and salt-recreting plants showed high concentrations of Na, S, and Mg and low concentrations of Ca and K. In contrast, pseudo-halophytes, facultative-halophytes and eury-hygro-halophytes, which often lack succulent shoots, showed low Na, S, and Mg and high Ca and K concentrations in their leaves. Clear patterns were identified among taxonomic families, with Chenopodiaceae and Plumbaginaceae having high Na and Mg and low Ca and K concentrations, Caryophyllaceae having high K, Poaceae having low Na, and Asteraceae, Boraginaceae, and Brassicaceae showing high foliar Ca concentrations. We conclude that the elemental composition of halophytes and pseudo-halophytes is related to salt-tolerance categories, eco-morphological types and respective taxonomic groups.", "keywords": ["Succulent halophytes", "0106 biological sciences", "0301 basic medicine", "Cytoplasm", "Salinity", "Persian Gulf", "Climate", "Chenopodiaceae", "Iran", "Plant Roots", "01 natural sciences", "Ionome", "Soil", "03 medical and health sciences", "Magnesium", "Recreting halophytes", "Ecosystem", "Phylogeny", "Geography", "Lake Urmia", "Salt-Tolerant Plants", "Hydrogen-Ion Concentration", "15. Life on land", "Adaptation", " Physiological", "Caryophyllales", "Plant Leaves", "Calcium", "Sulfur"]}, "links": [{"href": "https://doi.org/10.1016/j.plaphy.2019.05.023"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Plant%20Physiology%20and%20Biochemistry", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.plaphy.2019.05.023", "name": "item", "description": "10.1016/j.plaphy.2019.05.023", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.plaphy.2019.05.023"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-08-01T00:00:00Z"}}, {"id": "10.1021/es400554x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:17:21Z", "type": "Journal Article", "created": "2013-06-24", "title": "Sewage Sludge Biochar Influence Upon Rice (Oryza Sativa L) Yield, Metal Bioaccumulation And Greenhouse Gas Emissions From Acidic Paddy Soil", "description": "Biochar addition to soil has been proposed to improve plant growth by increasing soil fertility, minimizing bioaccumulation of toxic metal(liod)s and mitigating climate change. Sewage sludge (SS) is an attractive, though potentially problematic, feedstock of biochar. It is attractive because of its large abundance; however, it contains elevated concentrations of metal(loid)s and other contaminants. The pyrolysis of SS to biochar (SSBC) may be a way to reduce the availability of these contaminants to the soil and plants. Using rice plant pot experiments, we investigated the influence of SSBC upon biomass yield, bioaccumulation of nutrients, and metal(loid)s, and green housegas (GHG) emissions. SSBC amendments increased soil pH, total nitrogen, soil organic carbon and available nutrients and decreased bioavailable As, Cr, Co, Ni, and Pb (but not Cd, Cu, and Zn). Regarding rice plant properties, SSBC amendments significantly (P \u2264 0.01) increased shoot biomass (71.3-92.2%), grain yield (148.8-175.1%), and the bioaccumulation of phosphorus and sodium, though decreased the bioaccumulation of nitrogen (except in grain) and potassium. Amendments of SSBC significantly (P \u2264 0.05) reduced the bioaccumulation of As, Cr, Co, Cu, Ni, and Pb, but increased that of Cd and Zn, though not above limits set by Chinese regulations. Finally regarding GHG emissions, SSBC significantly (P < 0.01) reduced N2O emissions and stimulated the uptake/oxidation of CH4 enough to make both the cultivated and uncultivated paddy soil a CH4 sink. SSBC can be beneficial in rice paddy soil but the actual associated benefits will depend on site-specific conditions and source of SS; long-term effects remain a further unknown.", "keywords": ["2. Zero hunger", "Sewage", "Oryza", "04 agricultural and veterinary sciences", "Hydrogen-Ion Concentration", "15. Life on land", "01 natural sciences", "6. Clean water", "12. Responsible consumption", "Soil", "Metals", "13. Climate action", "Charcoal", "11. Sustainability", "0401 agriculture", " forestry", " and fisheries", "Gases", "Acids", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1021/es400554x"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Science%20%26amp%3B%20Technology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1021/es400554x", "name": "item", "description": "10.1021/es400554x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1021/es400554x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-08-06T00:00:00Z"}}, {"id": "10.1016/j.scitotenv.2004.01.026", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:16:39Z", "type": "Journal Article", "created": "2004-05-30", "title": "Relative Influence Of Wildfire On Soil Properties And Erosion Processes In Different Mediterranean Environments In Ne Spain", "description": "Abandonment of terraced soils and increased brushland cover has increased wildfire occurrence to almost an annual rate in the Cap de Creus Peninsula, NE Pyrenees Range, Province of Girona, Spain. A wildfire occurred in August 2000 and affected an area of 6760 ha of shrubs and cork trees, whereas still cultivated plots were only slightly affected. Five stations of erosion measurements, corresponding to five different environments (from present cultivation to late abandonment) were destroyed by the passage of fire, and were promptly replaced to allow to monitoring post-fire effects on soil erosion. Selected soil properties were determined monthly before the fire and during 6 months after the fire at a monthly rate. Runoff and sediment yield together with dissolved organic carbon (DOC) in runoff water and organic carbon losses in eroded sediments (EOC) were evaluated throughout 2000. The last stage of abandonment, stands of cork trees, had the highest soil stability. Nevertheless, evidence of unfavourable soil conditions was detected at the shrub stage, when Cistus monspeliensis cover was the dominant opportunistic plant. This stage was considered to be a critical threshold leading either to degradation or regeneration processes according to fire frequency. A drastic change in soil properties, erosion and nutrient depletion occurred after the fire in all the environments. Statistics enabled to state that environments differed significantly in main soil properties. By statistically comparing the measured variables between the environments before and after the fire, DOC was found to be the soil parameter showing the highest significance between environments. Absolute values of erosion were low with respect to other Mediterranean environments although the shallow nature of these soils might deserve special attention because of a comparatively higher risk of degradation.", "keywords": ["Analysis of Variance", "Rain", "Electric Conductivity", "04 agricultural and veterinary sciences", "Hydrogen-Ion Concentration", "15. Life on land", "Carbon", "Fires", "Soil", "Spain", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "Environmental Pollution", "Ecosystem", "Environmental Monitoring"]}, "links": [{"href": "https://doi.org/10.1016/j.scitotenv.2004.01.026"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Science%20of%20The%20Total%20Environment", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.scitotenv.2004.01.026", "name": "item", "description": "10.1016/j.scitotenv.2004.01.026", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.scitotenv.2004.01.026"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2004-07-26T00:00:00Z"}}, {"id": "10.1016/j.scitotenv.2016.07.140", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:16:41Z", "type": "Journal Article", "created": "2016-08-04", "title": "Reduced Carbon Sequestration Potential Of Biochar In Acidic Soil", "description": "Biochar application in soil has been proposed as a promising method for carbon sequestration. While factors affecting its carbon sequestration potential have been widely investigated, the number of studies on the effect of soil pH is limited. To investigate the carbon sequestration potential of biochar across a series of soil pH levels, the total carbon emission, CO2 release from inorganic carbon, and phospholipid fatty acids (PLFAs) of six soils with various pH levels were compared after the addition of straw biochar produced at different pyrolysis temperatures. The results show that the acidic soils released more CO2 (1.5-3.5 times higher than the control) after the application of biochar compared with neutral and alkaline soils. The degradation of both native soil organic carbon (SOC) and biochar were accelerated. More inorganic CO2 release in acidic soil contributed to the increased degradation of biochar. Higher proportion of gram-positive bacteria in acidic soil (25%-36%) was responsible for the enhanced biochar degradation and simultaneously co-metabolism of SOC. In addition, lower substrate limitation for bacteria, indicated by higher C-O stretching after the biochar application in the acidic soil, also caused more CO2 release. In addition to the soil pH, other factors such as clay contents and experimental duration also affected the phsico-chemical and biotic processes of SOC dynamics. Gram-negative/gram-positive bacteria ratio was found to be negatively related to priming effects, and suggested to serve as an indicator for priming effect. In general, the carbon sequestration potential of rice-straw biochar in soil reduced along with the decrease of soil pH especially in a short-term. Given wide spread of acidic soils in China, carbon sequestration potential of biochar may be overestimated without taking into account the impact of soil pH.", "keywords": ["2. Zero hunger", "Air Pollutants", "Carbon Sequestration", "China", "04 agricultural and veterinary sciences", "Hydrogen-Ion Concentration", "15. Life on land", "01 natural sciences", "Carbon", "6. Clean water", "Soil", "Biodegradation", " Environmental", "13. Climate action", "Air Pollution", "Charcoal", "0401 agriculture", " forestry", " and fisheries", "Environmental Restoration and Remediation", "Soil Microbiology", "0105 earth and related environmental sciences"], "contacts": [{"organization": "Yu Zhan, Yaqi Sheng, Lizhong Zhu,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.scitotenv.2016.07.140"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Science%20of%20The%20Total%20Environment", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.scitotenv.2016.07.140", "name": "item", "description": "10.1016/j.scitotenv.2016.07.140", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.scitotenv.2016.07.140"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2016-12-01T00:00:00Z"}}, {"id": "10.1016/j.scitotenv.2024.177760", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:16:45Z", "type": "Journal Article", "created": "2024-11-30", "title": "S-enhanced microbial activation of biochars and processed grass fibers for circular horticulture", "description": "Sulfur-enhanced microbiologically activated biochar and processed grass fibers were tested for suitability as bulk material for horticultural substrates. The potential for use as bulk material was improved when grass fibers with lower biological stability were acidified with elemental sulfur (S). Acidification of the fibers with S was obtained within 2\u00a0weeks and resulted in a higher biological stability due to improved decomposition during incubation with S, a change in the microbiome, or inhibition due to high sulfate concentrations, which reduced the decomposition activity. The application of wood-based biochars as bulk or stand-alone material for horticultural substrates is restricted by their high pH and high acid-buffering capacity. Acidification of biochar through microbial activation occurred slowly. The dynamics of lowering pH after S treatment were determined by the acid-buffering capacity of the biochar. In the long term a strong drop in pH was observed in biochars with a low acid-buffering capacity. For the biochars with a high acid-buffering capacity, pH drop was moderate despite a clear decrease in acid-buffering capacity. The microbial activation of biochar was accelerated by adding mineral fertilizer or chitin. Microbial activation of the biochars was confirmed by S mineralization after application of elemental S and by N mineralization from chitin. The acidification of biochars produced from bark or straw-like fiber with elemental S resulted in only small changes in surface properties.", "keywords": ["Charcoal", "Agriculture", "Hydrogen-Ion Concentration", "Poaceae", "Fertilizers", "Sulfur"]}, "links": [{"href": "https://doi.org/10.1016/j.scitotenv.2024.177760"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Science%20of%20The%20Total%20Environment", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.scitotenv.2024.177760", "name": "item", "description": "10.1016/j.scitotenv.2024.177760", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.scitotenv.2024.177760"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2024-12-01T00:00:00Z"}}, {"id": "10.1038/s41586-024-07274-7", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:17:41Z", "type": "Journal Article", "created": "2024-04-17", "title": "Environmental drivers of increased ecosystem respiration in a warming tundra", "description": "Abstract
Arctic and alpine tundra ecosystems are large reservoirs of organic carbon1,2. Climate warming may stimulate ecosystem respiration and release carbon into the atmosphere3,4. The magnitude and persistency of this stimulation and the environmental mechanisms that drive its variation remain uncertain5\uffe2\uff80\uff937. This hampers the accuracy of global land carbon\uffe2\uff80\uff93climate feedback projections7,8. Here we synthesize 136 datasets from 56 open-top chamber in situ warming experiments located at 28 arctic and alpine tundra sites which have been running for less than 1\uffe2\uff80\uff89year up to 25\uffe2\uff80\uff89years. We show that a mean rise of 1.4\uffe2\uff80\uff89\uffc2\uffb0C [confidence interval (CI) 0.9\uffe2\uff80\uff932.0\uffe2\uff80\uff89\uffc2\uffb0C] in air and 0.4\uffe2\uff80\uff89\uffc2\uffb0C [CI 0.2\uffe2\uff80\uff930.7\uffe2\uff80\uff89\uffc2\uffb0C] in soil temperature results in an increase in growing season ecosystem respiration by 30% [CI 22\uffe2\uff80\uff9338%] (n\uffe2\uff80\uff89=\uffe2\uff80\uff89136). Our findings indicate that the stimulation of ecosystem respiration was due to increases in both plant-related and microbial respiration (n\uffe2\uff80\uff89=\uffe2\uff80\uff899) and continued for at least 25\uffe2\uff80\uff89years (n\uffe2\uff80\uff89=\uffe2\uff80\uff89136). The magnitude of the warming effects on respiration was driven by variation in warming-induced changes in local soil conditions, that is, changes in total nitrogen concentration and pH and by context-dependent spatial variation in these conditions, in particular total nitrogen concentration and the carbon:nitrogen ratio. Tundra sites with stronger nitrogen limitations and sites in which warming had stimulated plant and microbial nutrient turnover seemed particularly sensitive in their respiration response to warming. The results highlight the importance of local soil conditions and warming-induced changes therein for future climatic impacts on respiration.Soil microorganisms act as gatekeepers for soil\uffe2\uff80\uff93atmosphere carbon exchange by balancing the accumulation and release of soil organic matter. However, poor understanding of the mechanisms responsible hinders the development of effective land management strategies to enhance soil carbon storage. Here we empirically test the link between microbial ecophysiological traits and topsoil carbon content across geographically distributed soils and land use contrasts. We discovered distinct pH controls on microbial mechanisms of carbon accumulation. Land use intensification in low-pH soils that increased the pH above a threshold (~6.2) leads to carbon loss through increased decomposition, following alleviation of acid retardation of microbial growth. However, loss of carbon with intensification in near-neutral pH soils was linked to decreased microbial biomass and reduced growth efficiency that was, in turn, related to trade-offs with stress alleviation and resource acquisition. Thus, less-intensive management practices in near-neutral pH soils have more potential for carbon storage through increased microbial growth efficiency, whereas in acidic soils, microbial growth is a bigger constraint on decomposition rates.Subsea permafrost represents a large carbon pool that might be or become a significant greenhouse gas source. Scarcity of observational data causes large uncertainties. We here use five 21-56\uffe2\uff80\uff89m long subsea permafrost cores from the Laptev Sea to constrain organic carbon (OC) storage and sources, degradation state and potential greenhouse gas production upon thaw. Grain sizes, optically-stimulated luminescence and biomarkers suggest deposition of aeolian silt and fluvial sand over 160 000 years, with dominant fluvial/alluvial deposition of forest- and tundra-derived organic matter. We estimate an annual thaw rate of 1.3\uffe2\uff80\uff89\uffc2\uffb1\uffe2\uff80\uff890.6\uffe2\uff80\uff89kg OC m\uffe2\uff88\uff922 in subsea permafrost in the area, nine-fold exceeding organic carbon thaw rates for terrestrial permafrost. During 20-month incubations, CH4 and CO2 production averaged 1.7 nmol and 2.4 \uffc2\uffb5mol g\uffe2\uff88\uff921 OC d\uffe2\uff88\uff921, providing a baseline to assess the contribution of subsea permafrost to the high CH4 fluxes and strong ocean acidification observed in the region.Fluorescence is an easily available analytical technique used to assess the optical characteristics of dissolved organic matter (DOM).
", "keywords": ["[SDU.OCEAN]Sciences of the Universe [physics]/Ocean", " Atmosphere", "[SDU.OCEAN]Sciences of the Universe [physics]/Ocean", "570", "Atmosphere", "[SDU.OCEAN] Sciences of the Universe [physics]/Ocean", " Atmosphere", "Hydrogen-Ion Concentration", "Milj\u00f6vetenskap", "Dissolved Organic Matter", "01 natural sciences", "[SDU.ENVI] Sciences of the Universe [physics]/Continental interfaces", " environment", "Lakes", "[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces", "Organic Chemicals", "[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces", " environment", "environment", "Environmental Sciences", "Humic Substances", "0105 earth and related environmental sciences"]}, "links": [{"href": "http://pubs.rsc.org/en/content/articlepdf/2022/AY/D1AY01702K"}, {"href": "https://doi.org/10.1039/d1ay01702k"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Analytical%20Methods", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1039/d1ay01702k", "name": "item", "description": "10.1039/d1ay01702k", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1039/d1ay01702k"}, {"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": "10.1038/s41598-022-10493-5", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:17:43Z", "type": "Journal Article", "created": "2022-04-26", "title": "Synergistic use of siderophores and weak organic ligands during zinc transport in the rhizosphere controlled by pH and ion strength gradients", "description": "AbstractCitrate (Cit) and Deferoxamine B (DFOB) are two important organic ligands coexisting in soils with distinct different affinities for metal ions. It has been theorized that siderophores and weak organic ligands play a synergistic role during the transport of micronutrients in the rhizosphere, but the geochemical controls of this process remain unknown. Here we test the hypothesis that gradients in pH and ion strength regulate and enable the cooperation. To this end, first we use potentiometric titrations to identify the dominant Zn(II)\uffe2\uff80\uff93Cit and Zn(II)\uffe2\uff80\uff93DFOB complexes and to determine their ionic strength dependent stability constants between 0 and 1\uffc2\uffa0mol\uffc2\uffa0dm\uffe2\uff88\uff923. We parametrise the Extended Debye-H\uffc3\uffbcckel (EDH) equation and determine accurate intrinsic association constants (log\uffce\uffb20) for the formation of the complexes present. The speciation model developed confirms the presence of [Zn(Cit)]\uffe2\uff88\uff92, [Zn(HCit)], [Zn2(Cit)2(OH)2]4\uffe2\uff88\uff92, and [Zn(Cit)2]4\uffe2\uff88\uff92, with [Zn(Cit)]\uffe2\uff88\uff92 and [Zn2(Cit)2(OH)2]4\uffe2\uff88\uff92 the dominant species in the pH range relevant to rhizosphere. We propose the existence of a\uffc2\uffa0new [Zn(Cit)(OH)3]4\uffe2\uff88\uff92 complex above pH 10. We also verify the existence of two hexadentate Zn(II)\uffe2\uff80\uff93DFOB species, i.e., [Zn(DFOB)]\uffe2\uff88\uff92 and [Zn(HDFOB)], and of one tetradentate species [Zn(H2DFOB)]+. Second, we identify the pH and ionic strength dependent ligand exchange points (LEP) of Zn with citrate and DFOB and the stability windows for Zn(II)\uffe2\uff80\uff93Cit and Zn(II)\uffe2\uff80\uff93DFOB complexes in NaCl and rice soil solutions. We find that the LEPs fall within the pH and ionic strength gradients expected in rhizospheres and that the stability windows for Zn(II)\uffe2\uff80\uff93citrate and Zn(II)\uffe2\uff80\uff93DFOB, i.e., low and high affinity ligands, can be distinctly set off. This suggests that pH and ion strength gradients allow for Zn(II) complexes with citrate and DFOB to dominate in different parts of the rhizosphere and this explains why mixtures of low and high affinity ligands increase leaching of micronutrients in soils. Speciation models of soil solutions using newly determined association constants demonstrate that the presence of dissolved organic matter and inorganic ligands (i.e., bicarbonate, phosphate, sulphate, or chlorides) do neither affect the position of the LEP nor the width of the stability windows significantly. In conclusion, we demonstrate that cooperative and synergistic ligand interaction between low and high affinity ligands is a valid mechanism for\uffc2\uffa0controlling zinc transport in the rhizosphere and possibly in other environmental reservoirs such as in the phycosphere. Multiple production of weak and strong ligands is therefore a valid strategy of plants and other soil organisms to improve access to micronutrients.Methane (CH4) oxidation is the only known biological sink process for mitigating atmospheric and terrestrial emissions of CH4, a major greenhouse gas. Methane oxidation in an alluvial soil planted to rice (Oryza sativaL.) under long\uffe2\uff80\uff90term application of organic (compost with a C/N ratio of 21.71), and mineral fertilizers was measured in a field\uffe2\uff80\uff90cum\uffe2\uff80\uff90laboratory incubation study. Oxidation rates were quantified in terms of decrease in the concentration of CH4in the headspace of incubation vessels and expressed as half\uffe2\uff80\uff90life (t\uffc2\uffbd) values. Methane oxidation rates significantly differed among the treatments and growth stages of the rice crop. Methane oxidation rates were high at the maximum tillering and maturity stages, whereas they were low at grain\uffe2\uff80\uff90filling stage. Methane oxidation was low (t\uffc2\uffbd= 15.76 d) when provided with low concentration of CH4On the contrary, high concentration of CH4resulted in faster oxidation (t\uffc2\uffbd= 6.67 d), suggesting the predominance of \uffe2\uff80\uff9clow affinity oxidation\uffe2\uff80\uff9d in rice fields. Methane oxidation was stimulated following the application of mineral fertilizers or compost implicating nutrient limitation as one of the factors affecting the process. Combined application of compost and mineral fertilizer, however, inhibited CH4oxidation probably due to N immobilization by the added compost. The positive effect of mineral fertilizer on CH4oxidation rate was evident only at high CH4concentration (t\uffc2\uffbd= 4.80 d), while at low CH4concentration their was considerable suppression (t\uffc2\uffbd= 17.60 d). Further research may reveal that long\uffe2\uff80\uff90term application of fertilizers, organic or inorganic, may not inhibit CH4oxidation.
", "keywords": ["Crops", " Agricultural", "2. Zero hunger", "Minerals", "Tropical Climate", "Time Factors", "Chemical Phenomena", "Chemistry", " Physical", "Oryza", "04 agricultural and veterinary sciences", "Hydrogen-Ion Concentration", "15. Life on land", "01 natural sciences", "6. Clean water", "Soil", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "Food", " Organic", "Fertilizers", "Oxidoreductases", "Methane", "Oxidation-Reduction", "Soil Microbiology", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.2134/jeq2006.0501"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20Environmental%20Quality", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.2134/jeq2006.0501", "name": "item", "description": "10.2134/jeq2006.0501", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.2134/jeq2006.0501"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2007-11-01T00:00:00Z"}}, {"id": "10.1079/bjn2003932", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:18:01Z", "type": "Journal Article", "created": "2003-09-20", "title": "Methane-Suppressing Effect Of Myristic Acid In Sheep As Affected By Dietary Calcium And Forage Proportion", "description": "The efficiency of myristic acid (14:0) as a feed additive to suppress CH4emissions of ruminants was evaluated under different dietary conditions. Six sheep were subjected to a 6 \uffc3\uff97 6 Latin square arrangement. A supplement of non-esterified 14: 0 (50 g/kg DM) was added to two basal diets differing in their forage:concentrate values (1:1/5 and 1: 0/5), which were adjusted to dietary Ca contents of 4/2 and 9/0 g/ kg DM, respectively. Comparisons were made with the unsupplemented basal diets (4/2 g Ca/kg DM). The 14:0 supplementation decreased (P< 0/001) total tract CH4release depending on basal diet type (interaction,P< 0/001) and dietary Ca level (P< 0/05,post hoctest). In the concentrate-based diet, 14:0 suppressed CH4emission by 58 and 47% with 4/2 and 9/0 g Ca/kg DM, respectively. The 14:0 effect was lower (22%) in the forage-based diet and became insignificant with additional Ca. Myristic acid inhibited (P< 0/05) rumen archaea without significantly altering proportions of individual methanogen orders. Ciliate protozoa concentration was decreased (P< 0/05,post hoctest) by 14:0 only in combination with 9/0 g Ca/kg DM. Rumen fluid NH3concentration and acetate:pro-pionate were decreased (P< 0/05) and water consumption was lower (P< 0/01) with 14:0. The use of 14:0 had no clear effects on total tract organic matter and fibre digestion; this further illustrates that the suppressed methanogenesis resulted from direct effects against methanogens. The present study demonstrated that 14:0 is a potent CH4inhibitor but, to be effective in CH4mitigation feeding strategies, interactions with other diet ingredients have to be considered.
", "keywords": ["Male", "2. Zero hunger", "Rumen", "Sheep", "Forage", "0402 animal and dairy science", "Water", "Calorimetry", " Indirect", "04 agricultural and veterinary sciences", "Hydrogen-Ion Concentration", "Animal Feed", "Myristic Acid", "Depression", " Chemical", "Dietary Supplements", "Animals", "Animal Nutritional Physiological Phenomena", "Calcium", "Methane; Myristic acid; Forage; Calcium", "Myristic acid", "Methane"], "contacts": [{"organization": "Andrea, Machm\u00fcller, Andrea, Machm\u00fcller, Carla R, Soliva, Michael, Kreuzer,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1079/bjn2003932"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/British%20Journal%20of%20Nutrition", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1079/bjn2003932", "name": "item", "description": "10.1079/bjn2003932", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1079/bjn2003932"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2003-09-01T00:00:00Z"}}, {"id": "10.1080/00039420215633", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:18:02Z", "type": "Journal Article", "created": "2003-10-02", "title": "Rumen Fermentation And Nitrogen Balance Of Lambs Fed Diets Containing Plant Extracts Rich In Tannins And Saponins, And Associated Emissions Of Nitrogen And Methane", "description": "Tannins were added to experimental diets at levels of 1 and 2 g/kg DM (hydrolysable tannins; Castanea sativa wood extract) and saponins at 2 and 30 mg/kg DM (sarsaponin; Yucca schidigera extract). These levels were far below thresholds expected to be adverse in ruminants. Effects were measured in lambs by comparison with unsupplemented control diets calculated to be either deficient (10%) or adequate in protein. The diets consisted of hay, concentrate (1:1) and extra wheat starch with increasing body weight. Ruminal pH, VFA concentration, protozoa count and apparent digestibilities of organic matter and fibre did not differ among treatments. The low tannin dose significantly decreased bacteria count compared to the high saponin dose. Saponin supplementation and the high tannin dose showed some potential to reduce ruminal ammonia concentration. This was associated with weak trends towards lower urine N excretion (only tannins) and ammonia emission from manure. Methane release was increased by the low tannin dose compared to the unsupplemented control. Diet effects on heat production were not systematic. In conclusion, the extracts rich in tannins or saponins gave only slight indications for either increased body nitrogen retention or reduced nitrogen emission. However, effects might have been larger with more pronounced dietary protein deficit.", "keywords": ["Male", "2. Zero hunger", "Rumen", "Sheep", "Dose-Response Relationship", " Drug", "Nitrogen", "Plant Extracts", "0402 animal and dairy science", "04 agricultural and veterinary sciences", "Hydrogen-Ion Concentration", "Saponins", "Fatty Acids", " Volatile", "Animal Feed", "6. Clean water", "Fermentation", "Animals", "Animal Nutritional Physiological Phenomena", "Digestion", "Dietary Proteins", "Methane", "Tannins"], "contacts": [{"organization": "Michael Kreuzer, B.J. Sliwinski, A. Machm\u00fcller, H. R. Wettstein,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1080/00039420215633"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Archiv%20f%C3%BCr%20Tierernaehrung", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1080/00039420215633", "name": "item", "description": "10.1080/00039420215633", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1080/00039420215633"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2002-12-01T00:00:00Z"}}, {"id": "10.1890/08-1730.1", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:19:53Z", "type": "Journal Article", "created": "2009-11-18", "title": "A global meta-analysis of soil exchangeable cations, pH, carbon, and nitrogen with afforestation", "description": "Afforestation, the conversion of non\uffe2\uff80\uff90forested lands to forest plantations, can sequester atmospheric carbon dioxide, but the rapid growth and harvesting of biomass may deplete nutrients and degrade soils if managed improperly. The goal of this study is to evaluate how afforestation affects mineral soil quality, including pH, sodium, exchangeable cations, organic carbon, and nitrogen, and to examine the magnitude of these changes regionally where afforestation rates are high. We also examine potential mechanisms to reduce the impacts of afforestation on soils and to maintain long\uffe2\uff80\uff90term productivity.
Across diverse plantation types (153 sites) to a depth of 30 cm of mineral soil, we observed significant decreases in nutrient cations (Ca, K, Mg), increases in sodium (Na), or both with afforestation. Across the data set, afforestation reduced soil concentrations of the macronutrient Ca by 29% on average (P< 0.05). Afforestation byPinusalone decreased soil K by 23% (P< 0.05). Overall, plantations of all genera also led to a mean 71% increase of soil Na (P< 0.05). Mean pH decreased 0.3 units (P< 0.05) with afforestation.
Afforestation caused a 6.7% and 15% (P< 0.05) decrease in soil C and N content respectively, though the effect was driven principally byPinusplantations (15% and 20% decrease,P< 0.05). Carbon to nitrogen ratios in soils under plantations were 5.7\uffe2\uff80\uff9311.6% higher (P< 0.05). In several regions with high rates of afforestation, cumulative losses of N, Ca, and Mg are likely in the range of tens of millions of metric tons. The decreases indicate that trees take up considerable amounts of nutrients from soils; harvesting this biomass repeatedly could impair long\uffe2\uff80\uff90term soil fertility and productivity in some locations. Based on this study and a review of other literature, we suggest that proper site preparation and sustainable harvest practices, such as avoiding the removal or burning of harvest residue, could minimize the impact of afforestation on soils. These sustainable practices would in turn slow soil compaction, erosion, and organic matter loss, maintaining soil fertility to the greatest extent possible.
", "keywords": ["0106 biological sciences", "Nitrogen", "Microbiology", "01 natural sciences", "333", "salinity", "Trees", "12. Responsible consumption", "acidification", "Soil", "SOIL NUTRIENTS", "afforestation", "SALINITY", "https://purl.org/becyt/ford/4.1", "https://purl.org/becyt/ford/4", "soil carbon", "Biology", "BASE CATIONS", "Ecosystem", "2. Zero hunger", "Environmental Microbiology and Microbial Ecology", "Forestry", "04 agricultural and veterinary sciences", "Hydrogen-Ion Concentration", "15. Life on land", "Carbon", "sustainable harvest", "13. Climate action", "SUSTAINABLE HARVEST", "AFFORESTATION", "0401 agriculture", " forestry", " and fisheries", "soil nutrients", "base cations", "SOIL CARBON", "ACIDIFICATION"]}, "links": [{"href": "https://doi.org/10.1890/08-1730.1"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Ecological%20Applications", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1890/08-1730.1", "name": "item", "description": "10.1890/08-1730.1", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1890/08-1730.1"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2009-12-01T00:00:00Z"}}, {"id": "10.1093/femsec/fiw024", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:18:17Z", "type": "Journal Article", "created": "2016-02-06", "title": "Mycorrhizal Fungal Communities Respond To Experimental Elevation Of Soil Ph And P Availability In Temperate Hardwood Forests", "description": "Many forests are affected by chronic acid deposition, which can lower soil pH and limit the availability of nutrients such as phosphorus (P), but the response of mycorrhizal fungi to changes in soil pH and P availability and how this affects tree acquisition of nutrients is not well understood. Here, we describe an ecosystem-level manipulation in 72 plots, which increased pH and/or P availability across six forests in Ohio, USA. Two years after treatment initiation, mycorrhizal fungi on roots were examined with molecular techniques, including 454-pyrosequencing. Elevating pH significantly increased arbuscular mycorrhizal (AM) fungal colonization and total fungal biomass, and affected community structure of AM and ectomycorrhizal (EcM) fungi, suggesting that raising soil pH altered both mycorrhizal fungal communities and fungal growth. AM fungal taxa were generally negatively correlated with recalcitrant P pools and soil enzyme activity, whereas EcM fungal taxa displayed variable responses, suggesting that these groups respond differently to P availability. Additionally, the production of extracellular phosphatase enzymes in soil decreased under elevated pH, suggesting a shift in functional activity of soil microbes with pH alteration. Thus, our findings suggest that elevating pH increased soil P availability, which may partly underlie the mycorrhizal fungal responses we observed.", "keywords": ["Fungi", "Phosphorus", "04 agricultural and veterinary sciences", "Forests", "Hydrogen-Ion Concentration", "15. Life on land", "Plant Roots", "Trees", "Soil", "Mycorrhizae", "0401 agriculture", " forestry", " and fisheries", "Biomass", "Ecosystem", "Soil Microbiology"]}, "links": [{"href": "https://doi.org/10.1093/femsec/fiw024"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/FEMS%20Microbiology%20Ecology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1093/femsec/fiw024", "name": "item", "description": "10.1093/femsec/fiw024", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1093/femsec/fiw024"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2016-02-04T00:00:00Z"}}, {"id": "10.1101/117887", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:18:24Z", "type": "Journal Article", "created": "2017-03-19", "title": "Bacterial physiological adaptations to contrasting edaphic conditions identified using landscape scale metagenomics", "description": "AbstractEnvironmental factors relating to soil pH are widely known to be important in structuring soil bacterial communities, yet the relationship between taxonomic community composition and functional diversity remains to be determined. Here, we analyze geographically distributed soils spanning a wide pH gradient and assess the functional gene capacity within those communities using whole genome metagenomics. Low pH soils consistently had fewer taxa (lower alpha and gamma diversity), but only marginal reductions in functional alpha diversity and equivalent functional gamma diversity. However, coherent changes in the relative abundances of annotated genes between pH classes were identified; with functional profiles clustering according to pH independent of geography. Differences in gene abundances were found to reflect survival and nutrient acquisition strategies, with organic-rich acidic soils harboring a greater abundance of cation efflux pumps, C and N direct fixation systems and fermentation pathways indicative of anaerobiosis. Conversely, high pH soils possessed more direct transporter-mediated mechanisms for organic C and N substrate acquisition. These findings show that bacterial functional versatility may not be constrained by taxonomy, and we further identify the range of physiological adaptations required to exist in soils of varying nutrient availability and edaphic conditions.Acid phosphatases are enzymes that play a crucial role in the hydrolysis of various organophosphorous molecules. A putative acid phosphatase called FS6 was identified using genetic profiles and sequences from different environments. FS6 showed high sequence similarity to type C acid phosphatases and retained more than 30% of consensus residues in its protein sequence. A histidine\uffe2\uff80\uff90tagged recombinant FS6 produced in Escherichia coli exhibited extremophile properties, functioning effectively in a broad pH range between 3.5 and 8.5. The enzyme demonstrated optimal activity at temperatures between 25 and 50\uffc2\uffb0C, with a melting temperature of 51.6\uffc2\uffb0C. Kinetic parameters were determined using various substrates, and the reaction catalysed by FS6 with physiological substrates was at least 100\uffe2\uff80\uff90fold more efficient than with p\uffe2\uff80\uff90nitrophenyl phosphate. Furthermore, FS6 was found to be a decamer in solution, unlike the dimeric forms of crystallized proteins in its family.South China has been experiencing very high rate of acid deposition and severe soil acidification in recent decades, which has been proposed to exacerbate the regional ecosystem phosphorus (P) limitation. We conducted a 10\uffe2\uff80\uff90year field experiment of simulated acid deposition to examine how acidification impacts seasonal changes of different soil P fractions in a tropical forest with highly acidic soils in south China. As expected, acid addition significantly increased occluded P pool but reduced the other more labile P pools in the dry season. In the wet season, however, acid addition did not change microbial P, soluble P and labile organic P pools. Acid addition significantly increased exchangeable Al3+ and Fe3+ and the activation of Fe oxides in both seasons. Different from the decline of microbial abundance in the dry season, acid addition increased ectomycorrhizal fungi and its ratio to arbuscular mycorrhiza fungi in the wet season, which significantly stimulated phosphomonoesterase activities and likely promoted the dissolution of occluded P. Our results suggest that, even in already highly acidic soils, the acidification\uffe2\uff80\uff90induced P limitation could be alleviated by stimulating ectomycorrhizal fungi and phosphomonoesterase activities. The differential responses and microbial controls of seasonal soil P transformation revealed here should be implemented into ecosystem biogeochemical model for predicting plant productivity under future acid deposition scenarios.Climate change is causing an intensification of soil drying and rewetting events, altering microbial functioning and potentially destabilizing soil organic carbon. After rewetting, changes in microbial community carbon use efficiency (CUE), investment in life history strategies, and fungal to bacterial dominance co\uffe2\uff80\uff90occur. Still, we have yet to generalize what drives these dynamic responses. Here, we collated 123 time series of microbial community growth (G, sum of fungal and bacterial growth, evaluated by leucine and acetate incorporation, respectively) and respiration (R) after rewetting and calculated CUE\uffe2\uff80\uff89=\uffe2\uff80\uff89G/(G\uffe2\uff80\uff89+\uffe2\uff80\uff89R). First, we characterized CUE recovery by two metrics: maximum CUE and time to maximum CUE. Second, we translated microbial growth and respiration data into microbial investments in life history strategies (high yield (Y), resource acquisition (A), and stress tolerance (S)). Third, we characterized the temporal change in fungal to bacterial dominance. Finally, the metrics describing the CUE recovery, investment in life history strategies, and fungal to bacterial dominance after rewetting were explained by environmental factors and microbial properties. CUE increased after rewetting as fungal dominance declined, but the maximum CUE was explained by the CUE under moist conditions, rather than specific environmental factors. In contrast, higher soil pH and carbon availability accelerated the decline of microbial investment in stress tolerance and fungal dominance. We conclude that microbial CUE recovery is mostly driven by the shifting microbial community composition and the metabolic capacity of the community, whereas changes in microbial investment in life history strategies and fungal versus bacterial dominance depend on soil pH and carbon availability.