BACKGROUND: In spite of increasing knowledge of allelopathic rice as an efficient component involved in paddy weed management, relatively little is known about its reproduction in response to competing weeds. Reproduction allocation of individual allelopathic rice plants in relation to monoculture and mixed culture with competing barnyardgrass in a paddy field was studied, along with analyses of soil nutrients and microbial communities to understand the potential mechanism.
RESULTS: At a 1:1 barnyardgrass and rice mixture proportion identified from a replacement series study, biomass, grain yield and major parameters of individual allelopathic rice plants at the mature stage were increased by competing barnyardgrass. There was no difference in allelopathic rice root\uffe2\uff80\uff90zone soil ammonium N and Olsen P between monoculture and mixed culture. However, mixed culture altered soil microbial biomass C and communities. When mixed with barnyardgrass, allelopathic rice root zone had an 87% increase in soil microbial biomass C. Phospholipid fatty acid (PLFA) profiling indicated that the signature lipid biomarkers of bacteria, actinobacteria and fungi were affected by mixed culture. Principal component analysis clearly identified differences in the composition of PLFA in different soil samples.
CONCLUSION: Allelopathic rice specific changes in soil microbial communities may generate a positive feedback on its own growth and reproduction in the presence of competing barnyardgrass in a given paddy system. Copyright \uffc2\uffa9 2012 Society of Chemical Industry
", "keywords": ["2. Zero hunger", "0106 biological sciences", "China", "Reproduction", "Population Dynamics", "Oryza", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "Pheromones", "Soil", "Echinochloa", "Rhizosphere", "0401 agriculture", " forestry", " and fisheries", "Biomass", "Soil Microbiology"], "contacts": [{"organization": "Chui-Hua Kong, Peng Wang, Xiang-Rui Meng, Hanwen Ni, Ming-Li Wang,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1002/ps.3380"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Pest%20Management%20Science", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1002/ps.3380", "name": "item", "description": "10.1002/ps.3380", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1002/ps.3380"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2012-08-07T00:00:00Z"}}, {"id": "10.1007/s11284-013-1064-7", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:14:57Z", "type": "Journal Article", "created": "2013-06-25", "title": "Flower Production Of Aster Tripolium Is Affected By Behavioral Differences In Livestock Species And Stocking Densities: The Role Of Activity And Selectivity", "description": "AbstractSemi\uffe2\uff80\uff90natural grasslands are an important habitat for endangered plant and animal species. In grasslands, low\uffe2\uff80\uff90intensity livestock grazing is frequently applied as a tool for nature conservation. We aim to investigate how different livestock species in various densities influence the state and flower production of a single plant species by selective defoliation and/or trampling. We hypothesized that (1) moderate stocking densities would cause more damage than low, and that (2) horses would cause more damage than cattle due to their higher activity. The experiment took place in a salt marsh in the Netherlands where grazing treatments with horses and cattle in two stocking densities were installed. Damage to individual Aster tripolium plants and number of flower heads were recorded at the end of the grazing season in late September. We found (1) more damage and fewer flower heads in moderate stocking densities compared to low densities. However, a reduction of flower heads by higher stocking densities was less clear with cattle. No clear difference (2) between livestock species was found, due to opposite trends in moderate and low densities. At low stocking densities, cattle caused more damage by selective defoliation. At moderate densities, horses caused more damage, because of their higher mobility, which led to damage by trampling. We conclude that the response of Aster to grazing is strongly affected by behavioral differences between livestock species. Grazing experiments and management schemes for semi\uffe2\uff80\uff90natural grasslands should therefore not only consider stocking densities, but also livestock species to reach desired conservation goals.
", "keywords": ["0106 biological sciences", "2. Zero hunger", "570", "Salt marsh", "AVAILABILITY", "WADDEN SEA", "VEGETATION CHANGE", "EUROPAEA L", "15. Life on land", "Horse", "01 natural sciences", "630", "Grazing", "REPRODUCTION", "Semi-natural grassland", "SALT-MARSH", "RESOURCE", "Cattle", "TOLERANCE", "HERBIVORY", "PERENNIAL HERB"]}, "links": [{"href": "https://doi.org/10.1007/s11284-013-1064-7"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Ecological%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s11284-013-1064-7", "name": "item", "description": "10.1007/s11284-013-1064-7", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s11284-013-1064-7"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-06-26T00:00:00Z"}}, {"id": "10.1016/j.envpol.2006.12.018", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:15:36Z", "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.jhazmat.2024.135592", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:15:58Z", "type": "Journal Article", "created": "2024-08-22", "title": "Microplastics originated from agricultural mulching films affect enchytraeid multigeneration reproduction and soil properties", "description": "Microplastics (MPs) are increasingly entering agricultural soils, often from the breakdown of agricultural plastics (e.g., mulching films). This study investigates the effects of realistic MPs from different mulching films: two conventional polyethylene (PE-1 and PE-2) and two biodegradable (starch-blended polybutylene adipate co-terephthalate; PBAT-BD-1 and PBAT-BD-2). MPs were mixed into Lufa 2.2 soil at a concentration range from 0.005\u00a0% to 5\u00a0% (w/w dry soil), wide enough to reflect both realistic environmental levels and 'worst-case scenarios'. Effects on Enchytraeus crypticus reproduction over two generations and six important soil properties were studied. PBAT MPs notably reduced enchytraeid reproduction in the F0 generation, with a maximum decrease of 35.5\u00a0\u00b1\u00a09.6\u00a0% at 0.5\u00a0% concentration. F1 generation was unaffected by PBAT contamination. PE MPs had a more substantial reproductive impact, with up to a 55.3\u00a0\u00b1\u00a09.7\u00a0% decrease at 5\u00a0% PE-1 concentration compared to the control, showing a dose-related effect except for 1\u00a0%. Both MP types also significantly affected soil water holding capacity, pH, and total carbon. Other soil properties remained unaffected. Our results highlight the potential negative impacts of MPs originating from real agricultural plastics on soil health and raise concerns about the role of agricultural plastics in sustainable agriculture and food safety.", "keywords": ["Soil invertebrates", "soil ecotoxicology", "Microplastics", "Polyesters", "Soil pH", "realistic soil pollution", "Agricultural plastics; Realistic soil pollution; Soil ecotoxicology; Soil invertebrates; Soil pH; water holding capacity; total carbon", "01 natural sciences", "soil pH", "Soil", "Soil Pollutants", "Animals", "Oligochaeta", "0105 earth and related environmental sciences", "total carbon", "Soil ecotoxicology", "Realistic soil pollution", "water holding capacity", "Reproduction", "Agriculture", "Starch", "04 agricultural and veterinary sciences", "soil invertebrates", "Polyethylene", "Agricultural plastics", "agricultural plastics", "0401 agriculture", " forestry", " and fisheries", "Plastics"], "contacts": [{"organization": "\u0160m\u00eddov\u00e1 Kl\u00e1ra, Selonen Salla, van Gestel Cornelis A. M., Fleissig Petr, Hofman Jakub,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.jhazmat.2024.135592"}, {"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.2024.135592", "name": "item", "description": "10.1016/j.jhazmat.2024.135592", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.jhazmat.2024.135592"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2024-11-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2008.10.019", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:16:11Z", "type": "Journal Article", "created": "2008-11-09", "title": "Are Laboratory Derived Toxicity Results Informative For Field Situations? Case Study On Earthworm Populations Contaminated With Heavy Metals", "description": "The relevance of laboratory tests on toxicants for field situations is often disputed given that laboratory tests are conducted under, next to the toxicant stress, optimal conditions which are not expected in field situations. In this paper we confront the results of laboratory tests on growth, reproduction and survival of earthworms, in a polluted and a reference field soil with a field inventory of earthworms. The field inventory includes population density, biomass and demographic composition in life stages measured monthly over a period of one year. The field inventory showed that density and biomass was higher at the polluted field site, a result in conflict with the extrapolation of the laboratory tests that showed a decrease in population growth rate by 23% at this site compared to the reference. The field inventory and laboratory derived results agreed in the demographic composition of the population with more individuals in the younger age class at the polluted site compared to the reference. Abiotic and biotic conditions that differ between sites and could possibly explain the lower earthworm biomass and density at the reference site are discussed. We suggest that predation by the two to five times higher densities of meadow birds in spring may have caused the lower density and biomass of earthworms at the reference site.", "keywords": ["consequences", "eisenia-foetida oligochaeta", "growth", "temperature", "netherlands", "04 agricultural and veterinary sciences", "01 natural sciences", "soil", "lumbricus-rubellus", "reproduction", "godwit limosa-limosa", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "river floodplains", "0105 earth and related environmental sciences"], "contacts": [{"organization": "Klok, T.C., Thissen, J.,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2008.10.019"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20Biology%20and%20Biochemistry", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.soilbio.2008.10.019", "name": "item", "description": "10.1016/j.soilbio.2008.10.019", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2008.10.019"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2009-02-01T00:00:00Z"}}, {"id": "10.1093/aob/mcr082", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:17:15Z", "type": "Journal Article", "created": "2011-04-14", "title": "Leaf Traits, Shoot Growth And Seed Production In Mature Fagus Sylvatica Trees After 8 Years Of Co2 Enrichment", "description": "Masting, i.e. synchronous but highly variable interannual seed production, is a strong sink for carbon and nutrients. It may, therefore, compete with vegetative growth. It is currently unknown whether increased atmospheric CO(2) concentrations will affect the carbon balance (or that of other nutrients) between reproduction and vegetative growth of forest species. In this study, reproduction and vegetative growth of shoots of mature beech (Fagus sylvatica) trees grown at ambient and elevated atmospheric CO(2) concentrations were quantified. It was hypothesized that within a shoot, fruiting has a negative effect on vegetative growth, and that this effect is ameliorated at increased CO(2) concentrations.Reproduction and its competition with leaf and shoot production were examined during two masting events (in 2007 and 2009) in F. sylvatica trees that had been exposed to either ambient or elevated CO(2) concentrations (530 \u00b5mol mol(-1)) for eight consecutive years, between 2000 and 2008.The number of leaves per shoot and the length of terminal shoots was smaller or shorter in the two masting years compared with the one non-masting year (2008) investigated, but they were unaffected by elevated CO(2) concentrations. The dry mass of terminal shoots was approx. 2-fold lower in the masting year (2007) than in the non-masting year in trees growing at ambient CO(2) concentrations, but this decline was not observed in trees exposed to elevated CO(2) concentrations. In both the CO(2) treatments, fruiting significantly decreased nitrogen concentration by 25 % in leaves and xylem tissue of 1- to 3-year-old branches in 2009.Our findings indicate that there is competition for resources between reproduction and shoot growth. Elevated CO(2) concentrations reduced this competition, indicating effects on the balance of resource allocation between reproduction and vegetative growth in shoots with rising atmospheric CO(2) concentrations.", "keywords": ["0106 biological sciences", "Time Factors", "Nitrogen", "Reproduction", "Carbon Dioxide", "15. Life on land", "01 natural sciences", "Carbon", "Trees", "Plant Leaves", "Xylem", "13. Climate action", "Fruit", "Seeds", "Fagus", "Plant Shoots", "Switzerland"], "contacts": [{"organization": "Han, Qingmin, Kabeya, Daisuke, Hoch, G\u00fcnter,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1093/aob/mcr082"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Annals%20of%20Botany", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1093/aob/mcr082", "name": "item", "description": "10.1093/aob/mcr082", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1093/aob/mcr082"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2011-04-14T00:00:00Z"}}, {"id": "10.1111/1462-2920.16012", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:17:28Z", "type": "Journal Article", "created": "2022-04-19", "title": "Soil fungi invest into asexual sporulation under resource scarcity, but trait spaces of individual isolates are unique", "description": "SummaryDuring the last few decades, a plethora of sequencing studies provided insight into fungal community composition under various environmental conditions. Still, the mechanisms of species assembly and fungal spread in soil remain largely unknown. While mycelial growth patterns are studied extensively, the abundant formation of asexual spores is often overlooked, though representing a substantial part of the fungal life cycle relevant for survival and dispersal. Here, we explore asexual sporulation (spore abundance, size and shape) in 32 co\uffe2\uff80\uff90occurring soil fungal isolates under varying resource conditions, to answer the question whether resource limitation triggers or inhibits fungal investment into reproduction. We further hypothesized that trade\uffe2\uff80\uff90offs exist in fungal investment towards growth, spore production and size. The results revealed overall increased fungal investment into spore production under resource limitations; however, effect sizes and response types varied strongly among fungal isolates. Such isolate\uffe2\uff80\uff90specific effects were apparent in all measured traits, resulting in unique trait spaces of individual isolates. This comprehensive dataset also elucidated variability in sporulation strategies and trade\uffe2\uff80\uff90offs with fungal growth and reproduction under resource scarcity, as only predicted by theoretical models before. The observed isolate\uffe2\uff80\uff90specific strategies likely underpin mechanisms of co\uffe2\uff80\uff90existence in this diverse group of saprobic soil fungi.
", "keywords": ["0106 biological sciences", "570", "ymp\u00e4rist\u00f6tekij\u00e4t", "Reproduction", "Fungi", "1. No poverty", "500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie::570 Biowissenschaften; Biologie", "maaper\u00e4eli\u00f6st\u00f6", "Spores", " Fungal", "15. Life on land", "lis\u00e4\u00e4ntyminen", "01 natural sciences", "Soil", "fungal spread", "Phenotype", "fungal community composition", "Reproduction", " Asexual", "soil fungi", "suvuton lis\u00e4\u00e4ntyminen", "sienet", "iti\u00f6t", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://onlinelibrary.wiley.com/doi/pdf/10.1111/1462-2920.16012"}, {"href": "https://doi.org/10.1111/1462-2920.16012"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Microbiology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/1462-2920.16012", "name": "item", "description": "10.1111/1462-2920.16012", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/1462-2920.16012"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-04-27T00:00:00Z"}}, {"id": "10.1111/j.1469-8137.2007.02309.x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:17:47Z", "type": "Journal Article", "created": "2008-02-06", "title": "Recurrent Soil Freeze-Thaw Cycles Enhance Grassland Productivity", "description": "Ongoing global warming will increase the frequency of soil freeze-thaw cycles (FTCs) in cool-temperate and other high-latitude regions. The spatial relevance of seasonally frozen ground amounts to c. 55% of the total land area of the northern hemisphere. Evidence suggests that FTCs contribute to nutrient dynamics. Knowledge of their effects on plant communities is scarce, although plants may be the decisive factor in controlling ecosystem functions such as nutrient retention. Here, the effects are analysed of five additional FTCs in winter for the above- and below-ground productivity of experimental grassland communities and soil enzymatic activity over the following growing season. Freeze-thaw cycles increased the above-ground productivity but reduced root length over the whole subsequent growing season. In summer, no changes in soil enzymatic activities representing the carbon, nitrogen and phosphorus cycles were observed in the FTC-manipulated plots, except for an increased cellobiohydrolase activity. Changes in productivity resulting in an increased shoot-to-root ratio and shifts in timing are capable of altering ecosystem stability and ecosystem services, such as productivity and nutrient retention.", "keywords": ["Greenhouse Effect", "2. Zero hunger", "Time Factors", "Reproduction", "04 agricultural and veterinary sciences", "15. Life on land", "Poaceae", "Plant Roots", "above-ground net primary productivity (ANPP); central Europe; climate change; EVENT-experiment; freeze\u2013thaw cycles; root length; soil enzymatic activity", "Soil", "13. Climate action", "Freezing", "0401 agriculture", " forestry", " and fisheries", "Ecosystem", "Plant Shoots"]}, "links": [{"href": "https://doi.org/10.1111/j.1469-8137.2007.02309.x"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/New%20Phytologist", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/j.1469-8137.2007.02309.x", "name": "item", "description": "10.1111/j.1469-8137.2007.02309.x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/j.1469-8137.2007.02309.x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2007-12-07T00:00:00Z"}}, {"id": "10.5281/zenodo.12705381", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:20:22Z", "type": "Dataset", "title": "Raw data for the manuscript: Microplastics originated from agricultural mulching films affect enchytraeid multigeneration reproduction and soil properties", "description": "Survival and reproduction data from multigenerational single-species tests involving four types of plastic materials. Five soil physico-chemical properties of contaminated soil were measured at the beginning of the experiment.", "keywords": ["papillons", "microplastics", "soil ecotoxicology", "soil properties", "agricultural plastics", "enchytraeid reproduction", "multigeneration"], "contacts": [{"organization": "\u0160m\u00eddov\u00e1, Kl\u00e1ra, Hofman, Jakub,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5281/zenodo.12705381"}, {"rel": "self", "type": "application/geo+json", "title": "10.5281/zenodo.12705381", "name": "item", "description": "10.5281/zenodo.12705381", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5281/zenodo.12705381"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2024-07-10T00:00:00Z"}}, {"id": "1871.1/c6b83cec-c3aa-4de0-8cfa-eaf68bcdd207", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-09-21T16:22:28Z", "type": "Journal Article", "created": "2025-08-07", "title": "Toxicity of two different size classes of tire particles from mixed end-of-life car tires to the springtail Sinella curviseta", "description": "Tire particles (TPs) are one of the biggest contributors to microplastic pollution, with reported soil concentrations exceeding 1 % close to busy roads. Little research has been done on the impact of TPs on soil organisms. In this study, two size classes of tire particles, 0\u201375 \u03bcm and 75\u2013180 \u03bcm, were compared to determine if size does influence their toxicity to the springtail Sinella curviseta. Adult springtails were exposed for three weeks to TPs spiked in LUFA 2.2 natural soil at concentrations between 0.0016 % and 4 % (w/w). TP addition caused an increase of soil pH at the two highest concentrations, and a dose-related increase of soil Zn concentrations, which were higher for the larger TPs. Available (0.01 M CaCl2 extractable) Zn concentrations also increased, but were far below toxic levels in all cases. Springtail survival was not affected, but reproduction was decreased by 59 % and 39 % at the highest concentration (4 %) compared to the control for the 0\u201375 \u03bcm and 75\u2013180 \u03bcm classes, respectively. EC50s were 3.50 % TPs in soil for the 0\u201375 \u03bcm class and 6.36 % TPs for the 75\u2013180 \u03bcm class, and differed significantly between the two size classes (\u03c72df = 1 > 3.84, p < 0.05). These results suggest that smaller sized tire particles (0\u201375 \u03bcm) are more toxic to S. curviseta than larger ones (75\u2013180 \u03bcm). It may also be concluded that long-term exposure to tire particles may threaten springtail populations at the highest concentrations currently found near roadsides.
", "keywords": ["Soil organisms", "Microplastics", "Reproduction", "Zn toxicity"]}, "links": [{"href": "https://doi.org/1871.1/c6b83cec-c3aa-4de0-8cfa-eaf68bcdd207"}, {"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": "1871.1/c6b83cec-c3aa-4de0-8cfa-eaf68bcdd207", "name": "item", "description": "1871.1/c6b83cec-c3aa-4de0-8cfa-eaf68bcdd207", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/1871.1/c6b83cec-c3aa-4de0-8cfa-eaf68bcdd207"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2025-09-01T00:00:00Z"}}, {"id": "1871.1/d6b61a78-2275-4762-b240-d861c82b3ce4", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:22:28Z", "type": "Journal Article", "created": "2024-12-18", "title": "Survival and reproduction effects of microplastics from three agricultural mulching films on Folsomia candida, Sinella curviseta, Heteromurus nitidus and Ceratophysella denticulata (Collembola)", "description": "An estimated 467 kt of plastic used in agriculture annually end up in European soils, potentially breaking down into secondary microplastics (MPs). Not much is known about the possible effects of these MPs on organisms residing in the soil. To properly assess their environmental risk, experimental data is needed on the toxicity of MPs to the survival and reproduction of model organisms. This study aimed at assessing the toxicity of three MP types derived from commonly used agricultural plastics to different Collembola species, representing an important and highly diverse class of soil arthropods. Starch- polybutadiene adipate terephthalate blend (starch-PBAT blend) MPs were produced from mulching films that were artificially aged by mechanical recycling. MPs were also made from virgin low density polyethylene (LDPE) mulching films and from linear low density polyethylene (LLDPE) films that underwent the same mechanical recycling process as the starch-PBAT blend films. Four Collembola species were tested: Folsomia candida, Sinella curviseta, Heteromurus nitidus and Ceratophysella denticulata, representing epedaphic, hemiedaphic and euedaphic, as well as sexually reproducing and parthenogenetic species. Each species was exposed in Lufa 2.2 soil spiked with nine MP concentrations: 0.0016, 0.008, 0.04, 0.2, 1, 2, 3, 4 and 5\u00a0% (w/w dry soil) and a control without additional MPs added to the soil. No dose-dependent effects were found for any of the exposed organisms, to any of the MPs tested. The results of this study suggest that the MPs used in this study, derived from commonly applied agricultural plastics, do not pose an immediate hazard to Collembola.", "keywords": ["Soil ecotoxicology", "Plastic pollution", "Microplastics", "Reproduction", "Animals", "Soil Pollutants", "Agriculture", "Agricultural soil", "Arthropods", "Plastics", "Springtails"]}, "links": [{"href": "https://doi.org/1871.1/d6b61a78-2275-4762-b240-d861c82b3ce4"}, {"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": "1871.1/d6b61a78-2275-4762-b240-d861c82b3ce4", "name": "item", "description": "1871.1/d6b61a78-2275-4762-b240-d861c82b3ce4", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/1871.1/d6b61a78-2275-4762-b240-d861c82b3ce4"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2025-01-01T00:00:00Z"}}, {"id": "20.500.14178/3035", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:22:38Z", "type": "Journal Article", "created": "2024-08-22", "title": "Microplastics originated from agricultural mulching films affect enchytraeid multigeneration reproduction and soil properties", "description": "Microplastics (MPs) are increasingly entering agricultural soils, often from the breakdown of agricultural plastics (e.g., mulching films). This study investigates the effects of realistic MPs from different mulching films: two conventional polyethylene (PE-1 and PE-2) and two biodegradable (starch-blended polybutylene adipate co-terephthalate; PBAT-BD-1 and PBAT-BD-2). MPs were mixed into Lufa 2.2 soil at a concentration range from 0.005\u00a0% to 5\u00a0% (w/w dry soil), wide enough to reflect both realistic environmental levels and 'worst-case scenarios'. Effects on Enchytraeus crypticus reproduction over two generations and six important soil properties were studied. PBAT MPs notably reduced enchytraeid reproduction in the F0 generation, with a maximum decrease of 35.5\u00a0\u00b1\u00a09.6\u00a0% at 0.5\u00a0% concentration. F1 generation was unaffected by PBAT contamination. PE MPs had a more substantial reproductive impact, with up to a 55.3\u00a0\u00b1\u00a09.7\u00a0% decrease at 5\u00a0% PE-1 concentration compared to the control, showing a dose-related effect except for 1\u00a0%. Both MP types also significantly affected soil water holding capacity, pH, and total carbon. Other soil properties remained unaffected. Our results highlight the potential negative impacts of MPs originating from real agricultural plastics on soil health and raise concerns about the role of agricultural plastics in sustainable agriculture and food safety.", "keywords": ["Soil invertebrates", "soil ecotoxicology", "Microplastics", "Polyesters", "Soil pH", "realistic soil pollution", "Agricultural plastics; Realistic soil pollution; Soil ecotoxicology; Soil invertebrates; Soil pH; water holding capacity; total carbon", "01 natural sciences", "soil pH", "Soil", "Soil Pollutants", "Animals", "Oligochaeta", "0105 earth and related environmental sciences", "total carbon", "Soil ecotoxicology", "Realistic soil pollution", "water holding capacity", "Reproduction", "Agriculture", "Starch", "04 agricultural and veterinary sciences", "soil invertebrates", "Polyethylene", "Agricultural plastics", "agricultural plastics", "0401 agriculture", " forestry", " and fisheries", "Plastics"]}, "links": [{"href": "https://doi.org/20.500.14178/3035"}, {"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": "20.500.14178/3035", "name": "item", "description": "20.500.14178/3035", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/20.500.14178/3035"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2024-11-01T00:00:00Z"}}, {"id": "38992384", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:23:24Z", "type": "Journal Article", "created": "2024-07-10", "title": "Reproduction, growth and oxidative stress in earthworm Eisenia andrei exposed to conventional and biodegradable mulching film microplastics", "description": "Plastic contamination in agricultural soils has become increasingly evident. Plastic mulching films are widely used in agricultural practices. However, the increased use of biodegradable plastics has, to some extent, replaced their non-degradable counterparts. The fragmentation of plastics generates microplastics (MPs), posing risk to soil functions and organisms. In this study the effects of low-density polyethylene microplastics (PE-MP) and polybutylene adipate terephthalate biodegradable microplastics (PBAT-BD-MP) originating from mulching films on the earthworm Eisenia andrei were studied. The earthworms were exposed to seven concentrations (0, 0.005, 0.05, 0.1, 0.5, 1, and 5\u00a0% w/w) based on environmentally relevant levels and worst-case scenarios on soil contamination. Survival, growth, reproduction, and biomarkers for oxidative stress [superoxide dismutase (SOD), catalase (CAT), glutathione reductase (GR), glutathione S-transferase (GST), glutathione (GSH), and lipid peroxidation (LPO)] were analysed. Additionally, the Integrated Biomarker Response Index (IBR) was calculated to assess the overall oxidative stress status of the earthworms. Results showed that PE-MP exposure slightly decreased the biomass of the earthworms towards higher concentrations, whereas PBAT-BD-MPs induced growth at lower concentrations. MPs did not have a significant effect on Eisenia andrei reproduction; however, a slight negative trend was observed in juvenile production with increasing PE-MP concentrations. Both PE-MP and PBAT-BD-MP affected antioxidant system, PE-MPs with changes in CAT and GR levels and PBAT-BD-MPs inducing effects on SOD and LPO levels. Additionally, both MPs exhibited effects on soil parameters, resulting in increased soil pH and water-holding capacity at 5\u00a0% concentration. Changes in soil parameters can further affect soil organisms such as earthworms. This study provides understanding of the ecotoxicological effects of conventional and biodegradable microplastics on the earthworm Eisenia andrei. It also shows that MP particles of both conventional and biodegradable mulching films induce oxidative stress, considered as an early-warning indicator for adverse ecological effects, in environmentally relevant concentrations.", "keywords": ["lierot", "soil ecotoxicology", "LDPE", "Microplastics", "School of Resource Wisdom", "maaper\u00e4biologia", "Biodegradable Plastics", "Resurssiviisausyhteis\u00f6", "maatalous", "Animals", "Soil Pollutants", "PBAT", "Oligochaeta", "oksidatiivinen stressi", "Glutathione Transferase", "mikromuovi", "2. Zero hunger", "maaper\u00e4", "agricultural soil", "Superoxide Dismutase", "Reproduction", "biodegradable plastic", "Catalase", "ymp\u00e4rist\u00f6kuormitus", "biohajoaminen", "environmental stress", "ekotoksikologia", "Oxidative Stress", "maaper\u00e4el\u00e4imist\u00f6", "muovi", "Polyethylene", "13. Climate action", "Lipid Peroxidation", "Biomarkers"]}, "links": [{"href": "https://doi.org/38992384"}, {"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": "38992384", "name": "item", "description": "38992384", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/38992384"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2024-10-01T00:00:00Z"}}, {"id": "b7260968-33ab-4b37-8158-4c7f6a599a75", "type": "Feature", "geometry": {"type": "Polygon", "coordinates": [[[5.81, 47.26], [5.81, 54.76], [15.77, 54.76], [15.77, 47.26], [5.81, 47.26]]]}, "properties": {"themes": [{"concepts": [{"id": "farming"}], "scheme": "https://standards.iso.org/iso/19139/resources/gmxCodelists.xml#MD_TopicCategoryCode"}, {"concepts": [{"id": "Soil"}, {"id": "Computer programming"}, {"id": "Computer software"}], "scheme": "AGROVOC Multilingual agricultural thesaurus"}, {"concepts": [{"id": "opendata"}, {"id": "bioinformatic"}, {"id": "scaling with ranked subsampling"}, {"id": "SRS"}, {"id": "microbiome data normalisation"}, {"id": "study reproduction"}], "scheme": "Individual"}, {"concepts": [{"id": "Boden"}], "scheme": "GEMET - INSPIRE themes, version 1.0"}], "rights": "Restrictions applied to assure the protection of privacy or intellectual property, and any special restrictions or limitations or warnings on using the resource or metadata. Reports, articles, papers, scientific and non - scientific works of any form, including tables, maps, or any other kind of output, in printed or electronic form, based in whole or in part on the data supplied, must contain an acknowledgement of the form: \"Data reused from the BonaRes Data Centre www.bonares.de. This data were created as part of the BonaRes Module A-Project - SIGNAL's research activities.\" Although every care has been taken in preparing and testing the data, the BonaRes Module A-Project - SIGNAL and the BonaRes Data Centre cannot guarantee that the data are correct; neither does the BonaRes Module A-Project - SIGNAL and the BonaRes Data Centre accept any liability whatsoever for any error, missing data or omission in the data, or for any loss or damage arising from its use. The BonaRes Module A-Project - SIGNAL and BonaRes Data Centre will not be responsible for any direct or indirect use which might be made of the data.", "updated": "2023-10-12", "type": "Dataset", "created": "2020-07-01", "language": "eng", "title": "R script to reproduce \"Improved normalization of species count data in ecology by scaling with ranked subsampling (SRS): application to microbial communities\".", "description": "The R script and data are available for download: \nhttps://metadata.bonares.de/smartEditor/rest/upload/ID_7050_2020_05_13_Beule_Karlovsky.zip\n\nR script and data for the reproduction of the paper entitled \"Improved normalization of species count data in ecology by scaling with ranked subsampling (SRS): application to microbial communities\" by Lukas Beule and Petr Karlovsky.\n\nComparison of scaling with ranked subsampling (SRS) with rarefying for the normalization of species count data in ecology. The example provided is a library obtained from next generation sequencing of a soil bacterial community. Different alpha diversity measures, community composition, and relative abundance of taxonomic units are compared.", "formats": [{"name": "ZIP"}, {"name": "WWW:DOWNLOAD"}], "keywords": ["Soil", "Computer programming", "Computer software", "opendata", "bioinformatic", "scaling with ranked subsampling", "SRS", "microbiome data normalisation", "study reproduction", "Boden"], "contacts": [{"name": "Lukas Beule", "organization": "University of Goettingen", "position": null, "roles": ["author"], "phones": [{"value": null}], "emails": [{"value": "lukas.beule@agr.uni-goettingen.de"}], "addresses": [{"deliveryPoint": [null], "city": null, "administrativeArea": null, "postalCode": null, "country": null}], "links": [{"href": null}]}, {"name": "Petr Karlovsky", "organization": "University of Goettingen", "position": null, "roles": ["projectLeader"], "phones": [{"value": null}], "emails": [{"value": "pkarlov@gwdg.de"}], "addresses": [{"deliveryPoint": [null], "city": null, "administrativeArea": null, "postalCode": null, "country": null}], "links": [{"href": null}]}, {"name": "BonaRes Data Centre", "organization": "Leibniz Centre for Agricultural Landscape Research (ZALF)", "position": "Research Platform 'Data Analysis & Simulation' - WG Geodata", "roles": ["publisher"], "phones": [{"value": "+49 33432 82 171"}], "emails": [{"value": "bonares-datenzentrum@zalf.de"}], "addresses": [{"deliveryPoint": ["Eberswalder Strasse 84"], "city": "M\u00fcncheberg", "administrativeArea": "Brandenburg", "postalCode": "15374", "country": "Germany"}], "links": [{"href": null}]}, {"organization": "University of Goettingen", "roles": ["contributor"]}]}, "links": [{"href": "https://maps.bonares.de/mapapps/resources/apps/bonares/index.html?lang=en&mid=b7260968-33ab-4b37-8158-4c7f6a599a75", "rel": "information"}, {"href": "https://metadata.bonares.de/smartEditor/rest/upload/ID_7050_2020_05_13_Beule_Karlovsky.zip", "protocol": "WWW:DOWNLOAD", "rel": "download"}, {"rel": "self", "type": "application/geo+json", "title": "b7260968-33ab-4b37-8158-4c7f6a599a75", "name": "item", "description": "b7260968-33ab-4b37-8158-4c7f6a599a75", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/b7260968-33ab-4b37-8158-4c7f6a599a75"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2023-10-12T00:00:00Z"}}], "links": [{"rel": "self", "type": "application/geo+json", "title": "This document as GeoJSON", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=REPRODUCTION&f=json", "hreflang": "en-US"}, {"rel": "alternate", "type": "text/html", "title": "This document as HTML", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=REPRODUCTION&f=html", "hreflang": "en-US"}, {"rel": "collection", "type": "application/json", "title": "Collection URL", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main", "hreflang": "en-US"}, {"type": "application/geo+json", "rel": "first", "title": "items (first)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=REPRODUCTION&", "hreflang": "en-US"}, {"rel": "last", "type": "application/geo+json", "title": "items (last)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=REPRODUCTION&offset=15", "hreflang": "en-US"}], "numberMatched": 15, "numberReturned": 15, "distributedFeatures": [], "timeStamp": "2026-09-22T07:57:44.687017Z"}