{"type": "FeatureCollection", "features": [{"id": "10.1016/j.envpol.2005.01.011", "type": "Feature", "geometry": null, "properties": {"updated": "2026-08-24T16:15:27Z", "type": "Journal Article", "created": "2005-04-10", "title": "Heavy Metal Concentrations In A Soil-Plant-Snail Food Chain Along A Terrestrial Soil Pollution Gradient", "description": "We investigated concentrations of Zn, Cu, Cd and Pb in the compartments of a soil-plant (Urtica dioica)-snail (Cepaea nemoralis) food chain in four polluted locations in the Biesbosch floodplains, the Netherlands, and two reference locations. Total soil metal concentrations in the polluted locations were 4-20 times higher than those in the reference locations. Positive relationships between the generally low leaf concentrations and the soil concentrations were found for Zn only (r2 = 0.20). Bioaccumulation of Zn, Cu and Cd was observed in the snail tissues. We found positive relationships between the snail and leaf concentrations for all metals (range r2 = 0.19-0.46). The relationships between soil and snail concentrations were also positive, except for Cu (range r2 = 0.15-0.33). These results suggest transfer of metals to C. nemoralis snails from U. dioica leaves and from the soil. Metal transfer from polluted leaves to C. nemoralis is more important than transfer from the soil.", "keywords": ["Food Chain", "Snails", "Urtica dioica", "15. Life on land", "01 natural sciences", "6. Clean water", "Plant Leaves", "Soil", "Zinc", "Biodegradation", " Environmental", "Lead", "13. Climate action", "Metals", " Heavy", "Animals", "Soil Pollutants", "Copper", "Cadmium", "Environmental Monitoring", "Netherlands", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.envpol.2005.01.011"}, {"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.2005.01.011", "name": "item", "description": "10.1016/j.envpol.2005.01.011", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.envpol.2005.01.011"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2005-11-01T00:00:00Z"}}, {"id": "10.1016/j.chemosphere.2006.03.038", "type": "Feature", "geometry": null, "properties": {"updated": "2026-08-24T16:15:18Z", "type": "Journal Article", "created": "2006-05-09", "title": "Decomposition Of Heavy Metal Contaminated Nettles (Urtica Dioica L.) In Soils Subjected To Heavy Metal Pollution By River Sediments", "description": "Two incubation experiments were conducted to evaluate differences in the microbial use of non-contaminated and heavy metal contaminated nettle (Urtica dioica L.) shoot residues in three soils subjected to heavy metal pollution (Zn, Pb, Cu, and Cd) by river sediments. The microbial use of shoot residues was monitored by changes in microbial biomass C, biomass N, biomass P, ergosterol, N mineralisation, CO(2) production and O(2) consumption rates. Microbial biomass C, N, and P were estimated by fumigation extraction. In the non-amended soils, the mean microbial biomass C to soil organic C ratio decreased from 2.3% in the low metal soil to 1.1% in the high metal soils. In the 42-d incubation experiment, the addition of 2% nettle residues resulted in markedly increased contents of microbial biomass P (+240%), biomass C (+270%), biomass N (+310%), and ergosterol (+360%). The relative increase in the four microbial properties was similar for the three soils and did not show any clear heavy metal effect. The contents of microbial biomass C, N and P and ergosterol contents declined approximately by 30% during the incubation as in the non-amended soils. The ratios microbial biomass C to N, microbial biomass C to P, and ergosterol to microbial biomass C remained constant at 5.2, 26, and 0.5%, respectively. In the 6-d incubation experiment, the respiratory quotient CO(2)/O(2) increased from 0.74 in the low metal soil to 1.58 in the high metal soil in the non-amended soils. In the treatments amended with 4% nettle residues, the respiratory quotient was constant at 1.13, without any effects of the three soils or the two nettle treatments. Contaminated nettle residues led generally to significantly lower N mineralisation, CO(2) production and O(2) consumption rates than non-contaminated nettle residues. However, the absolute differences were small.", "keywords": ["2. Zero hunger", "Geologic Sediments", "Minerals", "Time Factors", "Nitrogen", "Urtica dioica", "04 agricultural and veterinary sciences", "Carbon Dioxide", "01 natural sciences", "6. Clean water", "12. Responsible consumption", "Oxygen", "Rivers", "13. Climate action", "Ergosterol", "Metals", " Heavy", "Soil Pollutants", "0401 agriculture", " forestry", " and fisheries", "Biomass", "Soil Microbiology", "Environmental Monitoring", "0105 earth and related environmental sciences"], "contacts": [{"organization": "Rainer Georg Joergensen, Khalid Saifullah Khan,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.chemosphere.2006.03.038"}, {"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.2006.03.038", "name": "item", "description": "10.1016/j.chemosphere.2006.03.038", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.chemosphere.2006.03.038"}, {"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": "10.5061/dryad.5hk04", "type": "Feature", "geometry": null, "properties": {"updated": "2026-08-24T16:19:33Z", "type": "Dataset", "title": "Data from: Beyond plant-soil feedbacks: mechanisms driving plant community shifts due to land-use legacies in post-agricultural forests", "description": "unspecifiedData_Functional_Ecology_All_data_de_la_Pena_et_al_2016Each sheet contains  a different data set: Sheet 1: Abiotic fators Data for abiotic soil  factors i.e. pH-KCl, total nitrogen, percentage of ash rest, K, Mg, Ca,  Al, P, Olsen-P, N/P ratio, percentage of organic matter OM, percentage of  carbon, C/N ratio of soil samples collected at three forest sites in  Flanders (Belgium): Aelmoeseneie, Doode Bemde and Muizen forest. In all  sites, we compared soil conditions in ancient and postagricultural forest  parcels. Sheet 2: Nematode community Nematode composition in soil samples  collected in three different forest sites in Flanders (Belgium); at each  site ancient parcels and post-agricultural parcels were sampled. Sheet 3:  Data info of characteristics of species in the introduction experiment  Data on basic plant traits of plants reintroduced in post-agricultural and  ancient parcels in the Muizen forest (Belgium). For each plant we  meassured: length in cm, number of stems, number of holes in leaves,  number of leaves, number of leaves with signs of herbivory, proportion of  leaves showing herbivory marks, herbivory index. Sheet 4: Invertebrate  abundance on surveyed plants along transects in the Muizen forest, Belgium  Invertebrate abundance was assessed for all plants present along 10m x 1m  transects in the Muizen forest in Belgium. We compared invertebrate  abundance in post-agricultural forest parcels and ancient parcels. Sheet  5: Vegetation plots Data on vegetation plots. Plots 10 x 10m. For each  forest site i.e. Muizen forest, Aelmoeseneie(ALM) and Doode Bemde six  parcels were sampled; 3 on ancient forest parcels and 3 on  postagricultural. For each plot the understory vegetation was recorded.  Sheet 6: Vegetation transects Comparison of plant species in the  understory along transects in the Muizen forest. 10 transect surveys were  conducted in ancient forest plots and 10 in post-agricultural. Sheet 7:  Ecoplates For the characterization of the soil microbial community we used  a method that measures by spectrometric quantification the utilization by  microbes of different carbon substrates in microtiter plates (EcoPlates\u00ae).  Here we compare mean values for soil samples taken in post-agricultural  and ancient forest sites. \u2003 Sheet 8: Data experiment Urtica dioica Data on  plant traits and analysis of population build-up of Aphis urticata on  Urtica dioica plants growing in soil collected in post-agricultural forest  parcels or in ancient forest parcels. The experiment also compared the  effect of soil sterilization and provenance on plant performance by  measuring plant growth (biomass, no. of runners and flowering). Sheet 9:  Plant nutrient analysis Data on nitrogen and phosphorus content of  harvested plants from a re-introduction experiment in ancient and  post-agricultural forest parcels (in the Muizen forest, Belgium). There  were four species compared i.e. Geum urbanum, Circaea lutetiana, Primula  elatior and Urtica dioica. Plants were weighed after drying to constant  weight at 70 \u00b0C for 48 h. Sheet 10: Data Deschampsia cespitosa experiment  Data on the effect of soil sterilization (sterilized vs. non- sterile) and  provenance (i.e. ancient and post-agricultural) on plant growth of  Deschampsia cespitosa. Sheet 12 and Sheet 13: Population build-up of  aphids on Urtica dioica and Deschampsia cespitosa", "keywords": ["2. Zero hunger", "13. Climate action", "Primula elatior", "aboveground-belowground", "Geum urbanum", "Urtica dioica", "Phosphorus", "15. Life on land", "secondary succession", "diversity loss", "Deschampsia cespitosa", "Ciercaea lutetiana", "woodlands"], "contacts": [{"organization": "de la Pe\u00f1a, Eduardo, Baeten, Lander, Steel, Hanne, Viaene, Nicole, De Sutter, Nancy, De Schrijver, An, Verheyen, Kris,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5061/dryad.5hk04"}, {"rel": "self", "type": "application/geo+json", "title": "10.5061/dryad.5hk04", "name": "item", "description": "10.5061/dryad.5hk04", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5061/dryad.5hk04"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2017-04-12T00:00:00Z"}}], "links": [{"rel": "self", "type": "application/geo+json", "title": "This document as GeoJSON", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Urtica+dioica&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=Urtica+dioica&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=Urtica+dioica&", "hreflang": "en-US"}, {"rel": "last", "type": "application/geo+json", "title": "items (last)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Urtica+dioica&offset=3", "hreflang": "en-US"}], "numberMatched": 3, "numberReturned": 3, "distributedFeatures": [], "timeStamp": "2026-08-25T13:43:36.693526Z"}