{"type": "FeatureCollection", "features": [{"id": "10.1016/j.soilbio.2004.04.031", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:35Z", "type": "Journal Article", "created": "2004-06-24", "title": "Long-Term Soil Organic Carbon Dynamics In A Subhumid Tropical Climate: 13c Data In Mixed C3/C4 Cropping And Modeling With Rothc", "description": "Abstract   Scanty information on long-term soil organic carbon (SOC) dynamics hampers validation of SOC models in the tropics. We observed SOC content changes in a 16-year continuously cropped agroforestry experiment in Ibadan, south-western Nigeria. SOC levels declined in all treatments. The decline was most pronounced in the no-tree control treatments with continuous maize and cowpea cropping, where SOC levels dropped from the initial 15.4 to 7.3\u20138.0\u00a0Mg\u00a0C\u00a0ha\u22121 in the 0\u201312 cm topsoil in 16 years. In the two continuously cropped alley cropping (AC) systems, one with Leucaena leucocephala and one with Senna siamea trees, SOC levels dropped to 10.7\u201313.2\u00a0Mg\u00a0C\u00a0ha\u22121. Compared to the no-tree control treatments, an annual application of an additional 8.5\u00a0Mg\u00a0ha\u22121 (dry matter) of plant residues, mainly tree prunings, led to an extra 3.5\u00a0Mg\u00a0C\u00a0ha\u22121 (\u223c0.2% C) in the 0\u201312 cm top soil after 11 years, and 4.1\u00a0Mg\u00a0C\u00a0ha\u22121 after 16 years. The addition of NPK fertilizer had little effect on the quantities of above-ground plant residues returned to the soil, and there was no evidence that the fertilizer affected the rate of SOC decomposition. The fact that both C3 and C4 plants returned organic matter to the soil in all cropping systems, but in contrasting proportions, led to clear contrasts in the 13C abundance in the SOC. This 13C information, together with the measured SOC contents, was used to test the ROTHC model. Decomposition was very fast, illustrated by the fact that we had to double all decomposition rate constants in the model in order to simulate the measured contrasts in SOC contents and \u03b413C between the AC treatments and the no-tree controls. We hypothesized (1) that the pruning materials from the legume trees and/or the extra rhizodeposition from the tree roots in the AC treatments accelerated the decomposition of the SOC present at the start of the experiment (true C-priming), and/or (2) that the physical protection of microbial biomass and metabolites by the clay fraction on this site, having a sandy top soil in which clay minerals are mainly of the 1:1 type, is lower than assumed by the model.", "keywords": ["alley cropping", "2. Zero hunger", "leucaena leucocephala", "senna siamea", "soil organic matter", "microbiology", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "tropics"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2004.04.031"}, {"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.2004.04.031", "name": "item", "description": "10.1016/j.soilbio.2004.04.031", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2004.04.031"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2004-11-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2004.04.023", "type": "Feature", "geometry": null, "properties": {"license": "Closed Access", "updated": "2026-04-03T16:17:35Z", "type": "Journal Article", "created": "2004-06-02", "title": "Microbial Community Response To Nitrogen Deposition In Northern Forest Ecosystems", "description": "The productivity of temperate forests is often limited by soil N availability, suggesting that elevated atmospheric N deposition could increase ecosystem C storage. However, the magnitude of this increase is dependent on rates of soil organic matter formation as well as rates of plant production. Nonetheless, we have a limited understanding of the potential for atmospheric N deposition to alter microbial activity in soil, and hence rates of soil organic matter formation. Because high levels of inorganic N suppress lignin oxidation by white rot basidiomycetes and generally enhance cellulose hydrolysis, we hypothesized that atmospheric N deposition would alter microbial decomposition in a manner that was consistent with changes in enzyme activity and shift decomposition from fungi to less efficient bacteria. To test our idea, we experimentally manipulated atmospheric N deposition (0, 30 and 80\u00a0kg\u00a0NO3\u2212-N) in three northern temperate forests (black oak/white oak (BOWO), sugar maple/red oak (SMRO), and sugar maple/basswood (SMBW)). After one year, we measured the activity of ligninolytic and cellulolytic soil enzymes, and traced the fate of lignin and cellulose breakdown products (13C-vanillin, catechol and cellobiose).    In the BOWO ecosystem, the highest level of N deposition tended to reduce phenol oxidase activity (131\u00b113 versus 104\u00b15\u00a0\u03bcmol\u00a0h\u22121\u00a0g\u22121) and peroxidase activity (210\u00b126 versus 190\u00b121\u00a0\u03bcmol\u00a0h\u22121\u00a0g\u22121) and it reduced 13C-vanillin and 13C-catechol degradation and the incorporation of 13C into fungal phospholipids (p<0.05). Conversely, in the SMRO and SMBW ecosystems, N deposition tended to increase phenol oxidase and peroxidase activities and increased vanillin and catechol degradation and the incorporation of isotope into fungal phospholipids (p<0.05). We observed no effect of experimental N deposition on the degradation of 13C-cellulose, although cellulase activity showed a small and marginally significant increase (p<0.10). The ecosystem-specific response of microbial activity and soil C cycling to experimental N addition indicates that accurate prediction of soil C storage requires a better understanding of the physiological response of microbial communities to atmospheric N deposition.", "keywords": ["13. Climate action", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2004.04.023"}, {"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.2004.04.023", "name": "item", "description": "10.1016/j.soilbio.2004.04.023", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2004.04.023"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2004-09-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2004.05.005", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-04-03T16:17:35Z", "type": "Journal Article", "created": "2004-07-27", "title": "Resource Dynamics In An Early-Successional Plant Community Are Influenced By Insect Exclusion", "description": "The exclusion of insects from terrestrial ecosystems may change productivity, diversity and composition of plant communities and thereby nutrient dynamics. In an early-successional plant community we reduced densities of above- and below-ground insects in a factorial design using insecticides. Beside measuring vegetation dynamics we investigated the effects of insect exclusion on above- and below-ground plant biomass, below-ground C and N storage by plants, litter quality, decomposition rate, soil water content, soil C:N ratio, nutrient availability and soil microbial activity and biomass. The application of soil insecticide had only minor effects on above- and below-ground biomass of the plant community but increased carbon content in root biomass and total carbon and nitrogen storage in roots. In one of the three investigated plant species (Cirsium arvense), application of soil insecticide decreased nitrogen concentration of leaves (K12%). Since C. arvense responded positively to soil insecticide application, this effect may be due to drought stress caused by root herbivory. Decomposition rate was slightly increased by the application of above-ground insecticide, possibly due to an impact on epigeic predators. The application of soil insecticide caused a slightly increased availability of soil water and an increased availability of mineralised nitrogen (C30%) in the second season. We explain these effects by phenological differences between the plant communities, which developed on the experimental plots. Microbial biomass and activity were not influenced by insecticide application, but were correlated to above-ground plant biomass of the previous year. Overall, we conclude that the particular traits of the involved plant species, e.g. their phenology, are the key to understand the resource dynamics in the soil. q 2004 Elsevier Ltd. All rights reserved.", "keywords": ["0106 biological sciences", "2. Zero hunger", "13. Climate action", "15. Life on land", "01 natural sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2004.05.005"}, {"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.2004.05.005", "name": "item", "description": "10.1016/j.soilbio.2004.05.005", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2004.05.005"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2004-11-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2004.06.003", "type": "Feature", "geometry": null, "properties": {"license": "Closed Access", "updated": "2026-04-03T16:17:35Z", "type": "Journal Article", "created": "2004-08-14", "title": "Effects Of Root And Litter Exclusion On Soil Co2 Efflux And Microbial Biomass In Wet Tropical Forests", "description": "Abstract   We examined the effects of root and litter exclusion on the rate of soil CO 2  efflux and microbial biomass at a soil depth of 25\u00a0cm in a secondary forest (dominated by  Tabebuia heterophylla ) and a pine ( Pinus caribaea ) plantation in the Luquillo Experimental Forest in Puerto Rico. The experimental plots were initially established in 1990, when root, forest floor mass and new litterfall were excluded for 7 y since then. Soil respiration was significantly reduced in the litter and root exclusion plots in both the secondary forest and the pine plantation compared with the control. Root exclusion had a greater effect on soil CO 2  efflux than the litter exclusion in the plantation, whereas a reversed pattern was observed in the secondary forest. The reduction of microbial biomass in the root exclusion plot was greater in the secondary forest (59%) than in the plantation (31%), while there was no difference of the reduction in the litter exclusion plots between these forests. Our results suggest that above-ground input and roots (root litter and exudates) differentially affect soil CO 2  efflux under different vegetation types.", "keywords": ["0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2004.06.003"}, {"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.2004.06.003", "name": "item", "description": "10.1016/j.soilbio.2004.06.003", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2004.06.003"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2004-12-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2004.05.019", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-04-03T16:17:35Z", "type": "Journal Article", "created": "2004-08-18", "title": "Decomposer Animals (Lumbricidae, Collembola) And Organic Matter Distribution Affect The Performance Of Lolium Perenne (Poaceae) And Trifolium Repens (Fabaceae)", "description": "Abstract   Decomposer animals stimulate plant growth by indirect effects such as increasing nutrient availability or by modifying microbial communities in the rhizosphere. In grasslands, the spatial distribution of organic matter (OM) rich in nutrients depends on agricultural practice and the bioturbation activities of large detritivores, such as earthworms. We hypothesized that plants of different functional groups with contrasting nutrient uptake and resource allocation strategies differentially benefit from sites in soil with OM accumulation and the presence of decomposer animals. In a greenhouse experiment we investigated effects of spatial distribution of 15N-labelled grass litter, earthworms and collembola on a simple grassland community consisting of Lolium perenne (grass) and Trifolium repens (legume). Litter aggregates (compared to homogeneous litter distribution) increased total shoot biomass, root biomass and 15N uptake by the plants. Earthworms and collembola did not affect total N uptake of T. repens; however, the presence of both increased 15N uptake by T. repens and L. perenne. Earthworms increased shoot biomass of T. repens 1.11-fold and that of L. perenne 2.50 fold. Biomass of L. perenne was at a maximum in the presence of earthworms, collembola and with litter concentrated in a single aggregate. Shoot biomass of T. repens increased in the presence of collembola, with L. perenne generally responding opposingly. The results indicate that the composition of the decomposer community and the distribution of OM in soil affect plant competition and therefore plant community composition.", "keywords": ["0106 biological sciences", "2. Zero hunger", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2004.05.019"}, {"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.2004.05.019", "name": "item", "description": "10.1016/j.soilbio.2004.05.019", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2004.05.019"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2004-12-01T00:00:00Z"}}, {"id": "10.5061/dryad.63474", "type": "Feature", "geometry": null, "properties": {"license": "unspecified", "updated": "2026-04-03T16:23:09Z", "type": "Dataset", "title": "Data from: Distinct microbial communities in the active and permafrost layers on the Tibetan Plateau", "description": "unspecified16S-[UPARSE_otu_table.txt]the OTU table of prokaryotes generated by UPARSEITS-[UPARSE_otu_table.txt]the OTU table of fungi generated by PUARSE", "keywords": ["2. Zero hunger", "13. Climate action", "15. Life on land"], "contacts": [{"organization": "Chen, Yongliang, Deng, Ye, Ding, Jinzhi, Hu, Hangwei, Xu, Tianle, Li, Fei, Yang, Guibiao, Yang, Yuanhe, Hu, Hang-Wei, Yang, Gui-Biao, Yang, Yuan-He, Xu, Tian-Le,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5061/dryad.63474"}, {"rel": "self", "type": "application/geo+json", "title": "10.5061/dryad.63474", "name": "item", "description": "10.5061/dryad.63474", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5061/dryad.63474"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2017-10-26T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2004.06.005", "type": "Feature", "geometry": null, "properties": {"license": "Closed Access", "updated": "2026-04-03T16:17:35Z", "type": "Journal Article", "created": "2004-08-13", "title": "Activated Carbon Amendments To Soil Alters Nitrification Rates In Scots Pine Forests", "description": "Abstract   The influence of charcoal on biotic processes in soils remains poorly understood. Charcoal is a natural product of wildfires that burned on a historic return interval of \u223c100 years in Scots pine ( Pinus sylvestris  L.) forests of northern Sweden. Fire suppression and changes in forest stand management have resulted in a lack of charcoal production in these ecosystems. It is thought that charcoal may alter N mineralization and nitrification rates, however, previous studies have not been conclusive. Replicated field studies were conducted at three late-succession field sites in northern Sweden and supporting laboratory incubations were conducted using soil humus collected from these sites. We used activated carbon (AC), as a surrogate for natural-occurring fire-produced charcoal. Two rates of AC (0 and 2000\u00a0kg\u00a0ha \u22121 ), and glycine (0 and 100\u00a0kg\u00a0N as glycine ha \u22121 ) were applied in factorial combination to field microplots in a randomized complete block pattern. Net nitrification, N mineralization, and free phenol concentrations were measured using ionic and non-ionic resin capsules, respectively. These same treatments and also two rates of birch leaf litter (0 and 1000\u00a0kg\u00a0ha \u22121 ) were applied in a laboratory incubation and soils from this incubation were extracted with KCl and analyzed for NH 4  +  and NO 3  \u2212 . Nitrification rates increased with AC amendments in laboratory incubations, but this was not supported by field studies. Ammonification rates, as measured by NH 4  +  accumulation on ionic resins, were increased considerably by glycine applications, but some NH 4  +  was apparently lost to surface sorption to the AC. Phenolic accumulation on non-ionic resin capsules was significantly reduced by AC amendments. We conclude that charcoal exhibits important characteristics that affect regulating steps in the transformation and cycling of N.", "keywords": ["13. Climate action", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2004.06.005"}, {"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.2004.06.005", "name": "item", "description": "10.1016/j.soilbio.2004.06.005", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2004.06.005"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2004-12-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2004.07.017", "type": "Feature", "geometry": null, "properties": {"license": "Closed Access", "updated": "2026-04-03T16:17:35Z", "type": "Journal Article", "created": "2004-07-27", "title": "Microbial Activity In Pig Slurry-Amended Soils Under Semiarid Conditions", "description": "Soil amendment with manures from intensive animal industries is nowadays a common practice that may favorably or adversely affect several soil properties, including soil microbial activity. In this work, the effect of consecutive annual additions of pig slurry (PS) at rates of 30, 60, 90, 120 and 150 m 3  ha -1  y -1  over a 4-year period on soil chemical properties and microbial activity was investigated and compared to that of an inorganic fertilization and a control (without amendment). Field plot experiment conducted under a continuous barley monoculture and semiarid conditions were used. Eight months after the fourth yearly PS and mineral fertilizer application (i.e. soon after the fourth barley harvest), surface soil samples (Ap horizon, 0-15 cm depth) from control and amended soils were collected and analysed for pH, electrical conductivity (EC), contents of total organic C, total N, available P and K, microbial biomass C, basal respiration and different enzymatic activities. The control soil had a slightly acidic pH (6.0), a small EC (0.07 dS m -1 ), adequate levels of total N (1.2 g kg -1 ) and available K (483 mg kg -1 ) for barley growth, and small contents of total organic C (13.2 g kg -1 ) and available P (52 mg kg -1 ). With respect to the control and mineral fertilized soils, the PS-amended soils had greater pH values (around neutrality or slightly alkaline), electrical conductivities (still low) and contents of available P and K, and slightly larger total N contents. A significant decrease of total organic C was observed in soils amended at high slurry rate (12.3 g kg -1 ). Compared with the control and mineral treatments, which produced almost similar results, the PS-amended soils were characterized by a higher microbial biomass C content (from 311 to 442 g kg -1 ), microbial biomass C/total organic C ratio (from 2.3 to 3.6%) and dehydrogenase (from 35 to 173 \u03bcg INTF g -1 ), catalase (from 5 to 24 \u03bcmol O 2  g -1  min -1 ), BAA-protease (from 0.7 to 1.9 \u03bcmol NH +  4  g -1  h -1 ) and \u03b2-glucosidase (from 117 to 269 \u03bcmol PNP g -1  h -1 ) activities, similar basal respirations (from 48 to 77 \u03bcg C-CO 2  g -1  d -1 ) and urease activities (from 1.5 to 2.2 \u03bcmol NH +  4  g -1  h -1 ), and smaller metabolic quotients (from 6.4 to 7.7 ng C-CO 2  \u03bcg -1  biomass C h -1 ) and phosphatese activities (from 374 to 159 \u03bcmol PNP g -1  h -1 ). For example, statistical analysis of experimental data showed that, with the exception of metabolic quotient and total organic C content, these effects generally increased with increasing cumulative amount of PS. In conclusion, cumulative PS application to soil over time under semiarid conditions may produce not only beneficial effects but also adverse effects on soil properties, such us the partial mineralization of soil organic C through extended microbial oxidation. Thus, PS should not be considered as a mature organic amendment and should be treated appropriately before it is applied to soil, so as to enhance its potential as a soil organic fertilizer.", "keywords": ["2. Zero hunger", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "6. Clean water", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2004.07.017"}, {"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.2004.07.017", "name": "item", "description": "10.1016/j.soilbio.2004.07.017", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2004.07.017"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2004-10-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2004.07.031", "type": "Feature", "geometry": null, "properties": {"license": "Closed Access", "updated": "2026-04-03T16:17:35Z", "type": "Journal Article", "created": "2004-08-21", "title": "Land Use Change And Soil Nutrient Transformations In The Los Haitises Region Of The Dominican Republic", "description": "Abstract   We characterized soil cation, carbon (C) and nitrogen (N) transformations within a variety of land use types in the karst region of the northeastern Dominican Republic. We examined a range of soil pools and fluxes during the wet and dry seasons in undisturbed forest, regenerating forest and active agricultural sites within and directly adjacent to Los Haitises National Park. Soil moisture, soil organic matter (SOM), soil cations, leaf litter C and pH were significantly greater in regenerating forest sites than agricultural sites, while bulk density was greater in active agricultural sites. Potential denitrification, microbial biomass C and N, and microbial respiration g \u22121  dry soil were significantly greater in the regenerating forest sites than in the active agricultural sites. However, net mineralization, net nitrification, microbial biomass C, and microbial respiration were all significantly greater in the agricultural sites on g \u22121  SOM basis. These results suggest that land use is indirectly affecting microbial activity and C storage through its effect on SOM quality and quantity. While agriculture can significantly decrease soil fertility, it appears that the trend can begin to rapidly reverse with the abandonment of agriculture and the subsequent regeneration of forest. The regenerating forest soils were taken out of agricultural use only 5\u20137 years before our study and already have soil properties and processes similar to an undisturbed old forest site. Compared to undisturbed mogote forest sites, regenerating sites had smaller amounts of SOM and microbial biomass N, as well as lower rates of microbial respiration, mineralization and nitrification g \u22121  SOM. Initial recovery of soil pools and processes appeared to be rapid, but additional research must be done to address the long-term rate of recovery in these forest stands.", "keywords": ["13. Climate action", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "0105 earth and related environmental sciences"], "contacts": [{"organization": "Alexander S. Flecker, Peter M. Groffman, Alison G. Power, Pamela H. Templer,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2004.07.031"}, {"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.2004.07.031", "name": "item", "description": "10.1016/j.soilbio.2004.07.031", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2004.07.031"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2005-02-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2004.07.037", "type": "Feature", "geometry": null, "properties": {"license": "Closed Access", "updated": "2026-04-03T16:17:35Z", "type": "Journal Article", "created": "2004-09-14", "title": "Priming Effects In Different Soil Types Induced By Fructose, Alanine, Oxalic Acid And Catechol Additions", "description": "Abstract   It is well established that certain substrate additions to soils may accelerate or retard the mineralisation of soil organic matter. But up to now, research on these so called \u2018priming effects\u2019 was almost exclusively conducted with arable soils and with plant residues or glucose as additives. In this study, the effects of the uniformly 14C-labelled substrates fructose, alanine, oxalic acid and catechol on the mineralisation of soil organic carbon (SOC) from different horizons of two forest soils (Haplic Podzol and Dystric Cambisol) and one arable soil (Haplic Phaeozem) under maize and rye cultivation were investigated in incubation experiments for 26 days. Apart from the controls, all samples received substrate additions of 13.3\u00a0\u03bcg substrate-C mg\u22121 Corg. During the incubation, CO2-evolution was measured hourly and the amount of 14CO2 was determined at various time intervals. In almost all soils, priming effects were induced by one or several of the added substrates. The strongest positive priming effects were induced by fructose and alanine and occurred in the Bs horizon of the Haplic Podzol, where SOC mineralisation was nearly doubled. In the other soil samples, these substrates enhanced SOC mineralisation by +10 to +63%. Catechol additions generally reduced SOC mineralisation by \u221212 to \u221243% except in the EA horizon of the Haplic Podzol where SOC-borne CO2-evolution increased by +46%. Oxalic acid also induced negative as well as positive priming effects ranging from \u221224 to +82%. The data indicate that priming effects are ubiquitously occurring in surface and subsoil horizons of forest soils as well as in arable soils. Although a broad variety of soils was used within this study, relationships between soil properties and priming effects could not be ascertained. Therefore, a prediction on occurrence and magnitude of priming effects based on relatively easily measurable chemical and physical soil properties was not possible. Nevertheless, the data suggest that positive priming effects are most pronounced in forest soils that contain SOC of low biodegradability, where the added substrates may act as an important energy source for microbial metabolism.", "keywords": ["2. Zero hunger", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2004.07.037"}, {"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.2004.07.037", "name": "item", "description": "10.1016/j.soilbio.2004.07.037", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2004.07.037"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2005-03-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2004.08.013", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:36Z", "type": "Journal Article", "created": "2004-09-30", "title": "Decomposition Of C-14-Labeled Roots In A Pasture Soil Exposed To 10 Years Of Elevated Co2", "description": "Abstract   The net flux of soil C is determined by the balance between soil C input and microbial decomposition, both of which might be altered under prolonged elevated atmospheric CO 2 . In this study, we determined the effect of elevated CO 2  on decomposition of grass root material ( Lolium perenne  L.).  14 C-labeled root material, produced under ambient (35\u00a0Pa pCO 2 ) or elevated CO 2  (70\u00a0Pa pCO 2 ) was incubated in soil for 64 days. The soils were taken from a pasture ecosystem which had been exposed to ambient (35\u00a0Pa pCO 2 ) or elevated CO 2  (60\u00a0Pa pCO 2 ) under FACE-conditions for 10 years and two fertilizer N rates: 140 and 560\u00a0kg N ha \u22121 \u00a0year \u22121 . In soil exposed to elevated CO 2 , decomposition rates of root material grown at either ambient or elevated CO 2  were always lower than in the control soil exposed to ambient CO 2 , demonstrating a change in microbial activity. In the soil that received the high rate of N fertilizer, decomposition of root material grown at elevated CO 2  decreased by approximately 17% after incubation for 64 days compared to root material grown at ambient CO 2 . The amount of  14 CO 2  respired per amount of  14 C incorporated in the microbial biomass ( q  14 CO 2 ) was significantly lower when roots were grown under high CO 2  compared to roots grown under low CO 2 . We hypothesize that this decrease is the result of a shift in the microbial community, causing an increase in metabolic efficiency. Soils exposed to elevated CO 2  tended to respire more native SOC, both with and without the addition of the root material, probably resulting from a higher C supply to the soil during the 10 years of treatment with elevated CO 2 . The results show the importance of using soils adapted to elevated CO 2  in studies of decomposition of roots grown under elevated CO 2 . Our results further suggest that negative priming effects may obscure CO 2  data in incubation experiments with unlabeled substrates. From the results obtained, we conclude that a slower turnover of root material grown in an \u2018elevated-CO 2  world\u2019 may result in a limited net increase in C storage in ryegrass swards.", "keywords": ["organic-matter dynamics", "2. Zero hunger", "microbial biomass", "atmospheric carbon-dioxide", "turnover", "fine roots", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "forest soils", "tallgrass prairie", "trifolium-repens l", "lolium-perenne", "litter quality", "0401 agriculture", " forestry", " and fisheries", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2004.08.013"}, {"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.2004.08.013", "name": "item", "description": "10.1016/j.soilbio.2004.08.013", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2004.08.013"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2005-03-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2004.08.004", "type": "Feature", "geometry": null, "properties": {"license": "Closed Access", "updated": "2026-04-03T16:17:35Z", "type": "Journal Article", "created": "2004-10-05", "title": "Drought Decreases Soil Enzyme Activity In A Mediterranean Quercus Ilex L. Forest", "description": "Abstract   Longer and more severe drought periods are expected in the near future for Mediterranean ecosystems. Soil enzymes play an essential role in the nutrient mineralization and their activity is an exceptional sensor in predicting the capacity of nutrient supply to plants. We conducted an experiment of water availability manipulation in evergreen oak mountain stands with the aim to study the effects of enhanced drought on the activity of five soil enzymes. The drought treatment consisted of runoff exclusion by a ditch along the entire top edge of the upper part of treatment plots and partial rain exclusion by suspending PVC strips and funnels. The reduction of 10% of soil moisture produced by runoff exclusion decreased urease activity by 10\u201367%, protease activity by 15\u201366% and \u03b2-glucosidase activity by 10\u201380%, depending on annual period and soil depth. The reduction of 21% of soil moisture produced by runoff and rainfall exclusion together reduced urease activity by 42\u201360%, protease activity by 35\u201345%, \u03b2-glucosidase activity by 35\u201383% and acid phosphatase activity by 31\u201340%. No significant effects were observed on alkaline phosphatase activity. The activities of the enzymes involved in the nitrogen cycle, protease and urease, were the most affected by drought. In all cases, the activities of these enzymes strongly decreased with soil depth and they were greater in spring than in autumn. These results show the link between drought and a slower nutrient turn-over, which decreases the nutrient supply to plants.", "keywords": ["2. Zero hunger", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "6. Clean water"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2004.08.004"}, {"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.2004.08.004", "name": "item", "description": "10.1016/j.soilbio.2004.08.004", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2004.08.004"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2005-03-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2004.08.016", "type": "Feature", "geometry": null, "properties": {"license": "Closed Access", "updated": "2026-04-03T16:17:36Z", "type": "Journal Article", "created": "2004-10-05", "title": "Relationships Between N2o Emissions And Water-Soluble C And N Contents Of Agroforestry Residues After Their Addition To Soil", "description": "Nitrous oxide emissions are usually increased following incorporation of N-rich plant residues, but the effects of residue soluble C and N contents on emissions have still to be determined. Here we report a controlled environment experiment in which emissions of N2O were measured following addition of 15N-labelled (2.5\u20134.2 atom % excess 15N) agroforestry residues (Sesbania sesban, Macroptilium atropurpureum and Crotalaria grahamiana) to an Oxisol. Exposure of these trees to different irradiance during growth resulted in differences in water-soluble C and N contents. The highest emissions were generally measured from the lower water-soluble C and N (LS) residues with 7\u00a0mg N2O\u2013N m\u22122 emitted over 29 d after addition of Crotalaria LS residues (4.9% soluble C, 0.7% soluble N). Emissions were negatively correlated with the residue soluble C-to-N ratio (r=\u22120.68 to \u22120.89; P<0.05) at the time of main flux activity during the first 8 d after residue addition, indicating that under controlled environmental conditions substrates with a high soluble C-to-N ratio may result in low N2O emissions during the early stages of residue decomposition. This relationship has still to be verified under field conditions.", "keywords": ["2. Zero hunger", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land"], "contacts": [{"organization": "Neville Millar, Elizabeth M. Baggs,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2004.08.016"}, {"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.2004.08.016", "name": "item", "description": "10.1016/j.soilbio.2004.08.016", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2004.08.016"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2005-03-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2005.08.006", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-04-03T16:17:36Z", "type": "Journal Article", "created": "2005-09-10", "title": "Ph Regulation Of Carbon And Nitrogen Dynamics In Two Agricultural Soils", "description": "Abstract   Soil pH is often hypothesized to be a major factor regulating organic matter turnover and inorganic nitrogen production in agricultural soils. The aim of this study was to critically test the relationship between soil pH and rates of C and N cycling, and dissolved organic nitrogen (DON), in two long-term field experiments in which pH had been manipulated (Rothamsted silty clay loam, pH 3.5\u20136.8; Woburn sandy loam, pH 3.4\u20136.3). While alteration of pH for 37 years significantly affected crop production, it had no significant effect on total soil C and N or indigenous mineral N levels. This implies that at steady state, increased organic matter inputs to the soil are balanced by increased outputs of CO2. This is supported by the positive correlation between both plant productivity and intrinsic microbial respiration with soil pH. In addition, soil microbial biomass C and N, and nitrification were also significantly positively correlated with soil pH. Measurements of respiration following addition of urea and amino acids showed a significant decline in CO2 evolution with increasing soil acidity, whilst glucose mineralization showed no response to pH. In conclusion, it appears that changes in soil pH significantly affect soil microbial activity and the rate of soil C and N cycling. The evidence suggests that this response is partially indirect, being primarily linked to pH induced changes in net primary production and the availability of substrates. In addition, enhanced soil acidity may also act directly on the functioning of the microbial community itself.", "keywords": ["2. Zero hunger", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "6. Clean water"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2005.08.006"}, {"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.2005.08.006", "name": "item", "description": "10.1016/j.soilbio.2005.08.006", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2005.08.006"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-05-01T00:00:00Z"}}, {"id": "10.5061/dryad.8931zcrwj", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:23:11Z", "type": "Dataset", "created": "2023-07-04", "title": "Data from: Litter quality controls tradeoffs in soil carbon decomposition and replenishment in a subtropical forest", "description": "Species-rich forests can produce litter of varying carbon (C) and nitrogen  (N) composition (i.e., quality), which can affect decomposition and play a  central role in long-term soil organic carbon (SOC) accumulation. However,  how differences in litter quality affect SOC decomposition and formation  remains unclear over the full litter decomposition trajectory.\u00a0  We followed the in-situ complete decomposition of added 13C-labelled high-  (low C:N) and low-quality (high C:N) leaf-litter and its effect on  particulate (POM) and mineral-associated (MAOM) organic matter fractions  over two years in a natural subtropical forest. We found that during early  stages of decomposition, low-quality litter inputs decreased SOC via a  positive priming effect (i.e., new C inputs favored decomposition of  native SOC), but these SOC losses were offset by SOC gains observed via a  negative priming effect during decomposition of high-quality litter. In  contrast, this pattern reversed during late stages of decomposition\u2014SOC  losses via a positive priming effect induced by high-quality litter were  offset by SOC gains via a negative priming effect induced by low-quality  litter. Over the full decomposition of litter, both high- and low-quality  litter stimulated microbial breakdown of SOC tied to POM, but also  replenished more persistent SOC that associated with soil minerals (MAOM).  Altogether, we observed that low-quality litter formed twice as much new  SOC as high-quality litter (24% vs. 12% of added litter-C). We extend the  notion of the priming effect\u00a0from primarily a negative role  promoting losses of native SOC, to a functional role that can replenish  persistent SOC. Synthesis. Our measurements raise the possibility that, in  species-rich forests, high- and low-quality litter decomposition play  opposite but dynamically complementary roles in renewing POM\u2014both by  inducing its decomposition and formation\u2014while exclusively favoring MAOM  formation, which can help explain how differences in litter quality favor  SOC accumulation and persistence. Global change factors that shift plant  community composition may ultimately affect the fate of soil C, as changes  in litter quality may force soil transitions from sinks to sources or  sources to sinks of atmospheric CO2.", "keywords": ["complementary effect", "species-rich forests", "13C-labelled tree litter", "isotope tracer field experiment", "15. Life on land", "Priming effect", "litter-quality", "FOS: Natural sciences"], "contacts": [{"organization": "Lyu, Maokui, Homyak, Peter, Xie, Jinsheng, Pe\u00f1uelas, Josep, Ryan, Michael, Xiong, Xiaoling, Sardans, Jordi, Lin, Weisheng, Wang, Minhuang, Chen, Guangshui, Yang, Yusheng,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5061/dryad.8931zcrwj"}, {"rel": "self", "type": "application/geo+json", "title": "10.5061/dryad.8931zcrwj", "name": "item", "description": "10.5061/dryad.8931zcrwj", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5061/dryad.8931zcrwj"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2023-07-10T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2004.08.025", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:36Z", "type": "Journal Article", "created": "2004-12-15", "title": "Long-Term Effects Of Metal-Containing Farmyard Manure And Sewage Sludge On Soil Organic Matter In A Fluvisol", "description": "Abstract   Our aim was to establish the long-term effects of repeated applications after 20\u00a0y of organic amendments (farmyard manure at 10\u00a0t\u00a0ha \u22121 \u00a0y \u22121 , and urban sewage sludge at two different rates, 10\u00a0t\u00a0ha \u22121 \u00a0y \u22121  and 100\u00a0t\u00a0ha \u22121  every 2\u00a0y) on the quality of a sandy and poorly buffered soil (Fluvisol, pH 6). Chemical characteristics and biodegradability of the labile organic matter, which is mainly derived from microbial biomass and biodegradation products of organic residues, were chosen as indicators for soil quality. The organic C content had reached a maximal value (30.6\u00a0g\u00a0C\u00a0kg \u22121  in the 100\u00a0t sludge-treated soil), i.e. about 2.5 times that in the control. Six years after the last application, the organic C content and the microbial biomass content remained higher in sludge-treated soils than in the control. In contrast, the proportion of labile organic matter was significantly lower in sludge-treated soils than in manure-treated and control soils. The labile organic matter of sludge extracts appeared less humified than that of manure-treated and control soils.", "keywords": ["2. Zero hunger", "Sandy soils", "04 agricultural and veterinary sciences", "[SDV.SA.SDS]Life Sciences [q-bio]/Agricultural sciences/Soil study", "15. Life on land", "630", "Soil quality", "6. Clean water", "12. Responsible consumption", "[SDV.EE] Life Sciences [q-bio]/Ecology", " environment", "[SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry", "[SDV.EE]Life Sciences [q-bio]/Ecology", "[SDU.STU.GC] Sciences of the Universe [physics]/Earth Sciences/Geochemistry", "11. Sustainability", "Farmyard manure", "Zn", "0401 agriculture", " forestry", " and fisheries", "Labile organic matter", "[SDV.SA.SDS] Life Sciences [q-bio]/Agricultural sciences/Soil study", "Sewage sludge", "environment", "Cu", "Pb"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2004.08.025"}, {"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.2004.08.025", "name": "item", "description": "10.1016/j.soilbio.2004.08.025", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2004.08.025"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2005-04-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2004.09.010", "type": "Feature", "geometry": null, "properties": {"license": "Closed Access", "updated": "2026-04-03T16:17:36Z", "type": "Journal Article", "created": "2004-12-15", "title": "Elevated Co2 Concentration And Nitrogen Fertilisation Effects On N2o And Ch4 Fluxes And Biomass Production Of Phleum Pratense On Farmed Peat Soil", "description": "Abstract   The effects of elevated CO 2  supply on N 2 O and CH 4  fluxes and biomass production of  Phleum pratense  were studied in a greenhouse experiment. Three sets of 12 farmed peat soil mesocosms (10\u00a0cm dia, 47\u00a0cm long) sown with  P. pratense  and equally distributed in four thermo-controlled greenhouses were fertilised with a commercial fertiliser in order to add 2, 6 or 10\u00a0g\u00a0N\u00a0m \u22122 . In two of the greenhouses, CO 2  concentration was kept at atmospheric concentration (360\u00a0\u03bcmol\u00a0mol \u22121 ) and in the other two at doubled concentration (720\u00a0\u03bcmol\u00a0mol \u22121 ). Soil temperature was kept at 15\u00a0\u00b0C and air temperature at 20\u00a0\u00b0C. Natural lighting was supported by artificial light and deionized water was used to regulate soil moisture. Forage was harvested and the plants fertilised three times during the basic experiment, followed by an extra fertilisations and harvests. At the end of the experiment CH 4  production and CH 4  oxidation potentials were determined; roots were collected and the biomass was determined. From the three first harvests the amount of total N in the aboveground biomass was determined. N 2 O and CH 4  exchange was monitored using a closed chamber technique and a gas chromatograph. The highest N 2 O fluxes (on average, 255\u00a0\u03bcg\u00a0N 2 O\u00a0m \u22122 \u00a0h \u22121  during period IV) occurred just after fertilisation at high water contents, and especially at the beginning of the growing season (on average, 490\u00a0\u03bcg\u00a0N 2 O\u00a0m \u22122 \u00a0h \u22121  during period I) when the competition of vegetation for N was low. CH 4  fluxes were negligible throughout the experiment, and for all treatments the production and oxidation potentials of CH 4  were inconsequential. Especially at the highest rates of fertilisation, the elevated supply of CO 2  increased above- and below-ground biomass production, but both at the highest and lowest rates of fertilisation, decreased the total amount of N in the aboveground dry biomass. N 2 O fluxes tended to be higher under doubled CO 2  concentrations, indicating that increasing atmospheric CO 2  concentration may affect N and C dynamics in farmed peat soil.", "keywords": ["2. Zero hunger", "15. Life on land", "01 natural sciences", "7. Clean energy", "6. Clean water", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2004.09.010"}, {"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.2004.09.010", "name": "item", "description": "10.1016/j.soilbio.2004.09.010", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2004.09.010"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2005-04-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2004.11.018", "type": "Feature", "geometry": null, "properties": {"license": "Closed Access", "updated": "2026-04-03T16:17:36Z", "type": "Journal Article", "created": "2005-01-11", "title": "Limited Effects Of Six Years Of Fertilization On Carbon Mineralization Dynamics In A Minnesota Fen", "description": "Peatlands, including fens, are important ecosystems in the context of the global carbon cycle. Future climate change and other anthropogenic activities are likely to increase nutrient loading in many peatland ecosystems and a better understanding of the effects of these nutrients on peatland carbon cycling is necessary. We investigated the effects of six years of nitrogen and phosphorus fertilization, along with liming, on carbon mineralization dynamics in an intermediate fen in northern Minnesota. Specifically, we measured CO2 and CH4 emission from intact peat cores, as well as CH4 production and CH4 consumption at multiple depths in short-term laboratory incubations. Despite increased nitrogen and phosphorus availability in the upper 5 cm of peat, increased pH, and clear shifts in the vegetation community, fertilization and liming had limited effects on microbial carbon cycling in this fen. Liming reduced the net flux of CO2 approximately 3-fold compared to the control treatment, but liming had no effect on CH4 emissions from intact cores. There were no nutrient effects on CO2 or CH4 emissions from intact cores. In all treatments, rates of CH4 production increased with depth and rates of CH4 consumption were highest near the in situ water-table level. However, nutrient and liming had no effect on rates of CH4 production or CH4 consumption at any depth. Our results suggest that over at least the intermediate term, the microbial communities responsible for soil carbon cycling in this peatland are tolerant to wide ranges of nutrient concentrations and pH levels and may be relatively insensitive to future anthropogenic nutrient stress. q 2005 Elsevier Ltd. All rights reserved.", "keywords": ["13. Climate action", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2004.11.018"}, {"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.2004.11.018", "name": "item", "description": "10.1016/j.soilbio.2004.11.018", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2004.11.018"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2005-06-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2004.12.012", "type": "Feature", "geometry": null, "properties": {"license": "Closed Access", "updated": "2026-04-03T16:17:36Z", "type": "Journal Article", "created": "2005-02-11", "title": "Seasonal Variations In Enzyme Activity And Organic Carbon In Soil Of A Burned And Unburned Hardwood Forest", "description": "Abstract   This study examined variations in soil organic C content and the activity of acid phosphatase, \u03b1-glucosidase, phenol oxidase, chitinase, and  l -glutaminase in ultisols of burned and unburned areas in  Quercus -dominated forests in Ohio, USA. The low intensity, prescribed fires were conducted in April 2001, with temperature 10\u00a0cm above the forest floor averaging 160\u2013240\u00a0\u00b0C. Sampling was conducted throughout the six month growing season (May\u2013October) of 2003, two years after the fire. Organic C content in these ultisols varied between 20 and 30\u00a0g C/kg soil, and varied little through the growing season, except for a late season increase to \u223c32\u00a0g C/kg soil in the burned areas. When enzyme activity was expressed per unit soil organic C, there was no statistically significant variation among sample dates in soil enzyme activity except  l -glutaminase, which demonstrated a distinct maximum in activity in spring. Non-metric multidimensional scaling (NMS) ordination resulted in no clear separation of burned and unburned sample areas based on soil organic C and enzyme activity. When the growing season was divided into three segments (early spring, late spring/early summer, and late summer/early autumn), there was again a lack of separation between burned and unburned areas in the earlier two segments, whereas in the late summer/early autumn segment the burned and unburned areas were clearly separated on the basis of differences in soil organic C and  l -glutaminase activity. As environmental factors (e.g. soil temperature, moisture) and substrate availability do not vary in parallel through the growing season in this region, seasonal patterns often differ among enzyme systems based on their predominant control mechanism. Sampling time during the growing season appears to have little effect on holistic judgments of fire effects based on soil enzymes, except under restrictive conditions.", "keywords": ["0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land"], "contacts": [{"organization": "A. Smith, J.A. Brinkman, Ralph E. J. Boerner,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2004.12.012"}, {"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.2004.12.012", "name": "item", "description": "10.1016/j.soilbio.2004.12.012", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2004.12.012"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2005-08-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2004.08.026", "type": "Feature", "geometry": null, "properties": {"license": "Closed Access", "updated": "2026-04-03T16:17:36Z", "type": "Journal Article", "created": "2004-12-15", "title": "The Impacts Of Inorganic Nitrogen Application On Mineralization Of C-Labelled Maize And Glucose, And On Priming Effect In Saline Alkaline Soil", "description": "Organic matter dynamics and nutrient availability in saline alkaline soil of the former lake Texcoco will determine the success of a planned reforestation program. Uniformly labelled 14 C-maize (MAI-treatment) and glucose (GLU-treatment) with or without 200 mg NH C 4 K Nk g K1 soil (MAI-N treatment and GLU-N treatment, respectively) were added to soils with electrolytic conductivity (EC) 56 dS m K1 (soil A) and 12 dS m K1 (soil B) to investigate the importance of N availability on decomposition of organic material. Production of CO2 and 14 CO2 and inorganic N dynamics were monitored. The amount of 14 C-glucose mineralized increased 1.8-times in the soil A, but had no effect in the soil B when 200 mg NH C 4 K Nk g K1 soil was added, while the amount of 14 C-maize mineralized increased 1.7 and 1.3-times when 200 NH C 4 K Nk g K1 soil was added in the soils A and B, respectively. Application of NH C 4 increased priming effect 3.7-times in the MAItreatment of the soil A and 3.4-times in the GLU-treatment, while in the soil B the increase of priming effect was 4.1-times in the MAItreatment and 3.7-times in the GLU-treatment. Of the 200 mg NH C 4 K Nk g K1 added to both soils less than 10 mg NH3\u2013N kg K1 was volatilized within one day, while 22 and 44 mg NH C 4 K Nk g K1 soil was fixed on the soil matrix in the soil A and the soil B, respectively. Therefore more than 100 mg NH C 4 K Nk g K1 was immobilized into the microbial biomass within the first day. Concentration of nitrite \u00f0NO K 2 \u00de increased sharply in all the treatments of soil A at the onset of the incubation followed by a decrease. A similar pattern was observed in the GLU-N and MAI-N treatments of the soil B, but not in the other treatments. A decrease in concentration of NO K 3 was observed in both soils followed by an increase in the MAI-N and GLU-N treatments of the soil B. It was found that application of NH C 4 had a stimulating effect on the decomposition of maize and glucose, and on the priming effect, while assimilatory reduction of NO K 3 resulted in an increase of NO K 2 in the", "keywords": ["2. Zero hunger", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "6. Clean water"], "contacts": [{"organization": "E. Conde, Alejandro Ponce-Mendoza, C. Cruz-Mondrag\u00f3n, M. Cardenas, Marco Luna-Guido, Luc Dendooven,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2004.08.026"}, {"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.2004.08.026", "name": "item", "description": "10.1016/j.soilbio.2004.08.026", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2004.08.026"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2005-04-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2004.11.026", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:36Z", "type": "Journal Article", "created": "2005-01-11", "title": "Glyphosate Degradation As A Soil Health Indicator For Heavy Metal Polluted Soils", "description": "Glyphosate is a commonly used herbicide in grassland soils and microorganisms control its degradation. We introduce the concept of using the degradation rate as an indicator for ecosystem health. Testing this concept, we used soils with a long history of heavy metal pollution (Cu, Pb, and Zn). We hypothesized lower degradation rates in metal-polluted compared to less polluted soils. The degradation rates were measured by repeated measurements of the parent compound in spiked soil-water slurries incubated at 20\u00b0C over 21 days. Average rates showed no differences comparing among soils. We observed a positive correlation between glyphosate degradation rates and soil metal pollution. Therefore, we concluded that the expected impact of the metals on the bacteria responsible for the herbicide degradation was not established. We discuss the potential influence on biological degradation rates of soil pH and adsorption and implications using the concept of the soil health indicator. \u00a9 2005 Elsevier Ltd. All rights reserved.", "keywords": ["2. Zero hunger", "SDG 3 - Good Health and Well-being", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "0105 earth and related environmental sciences", "12. Responsible consumption"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2004.11.026"}, {"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.2004.11.026", "name": "item", "description": "10.1016/j.soilbio.2004.11.026", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2004.11.026"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2005-07-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2005.02.023", "type": "Feature", "geometry": null, "properties": {"license": "Closed Access", "updated": "2026-04-03T16:17:36Z", "type": "Journal Article", "created": "2005-03-23", "title": "Microbial Community Changes In Heathland Soil Communities Along A Geographical Gradient: Interaction With Climate Change Manipulations", "description": "Abstract   Climate change constitutes a serious threat for European heathlands as unlike other sources of damage, such as over-grazing, local remediation is not a possibility. Within the large pan-European projects, CLIMOOR and VULCAN, the effect of periodic drought and increased temperature were investigated in four heathland ecosystems along a geographical and climatic gradient across Europe. Fluorogenically labelled substrates for four enzymes (glucosidase, sulphatase, phosphatase, leucine amino peptidase) were used to measure extra-cellular enzyme activity in soil samples from each of the CLIMOOR sites. Microbial extra-cellular enzyme production is linked to microbial activity as well as soil physico-chemical properties, making soil enzymes one of the more reactive components of terrestrial ecosystems and potentially excellent indicators of soil microbial functional status and diversity.  Across all sites and over all the substrates, organic matter content was exponentially, inversely related to enzyme activity. Although the increase in temperature produced by the CLIMOOR roofs was small (on average 0.9\u00a0\u00b0C), this was sufficient to increase enzyme activity in all sites (on average by 45%). The increase was within the range of seasonal variability at each of the sites. The effect of drought on enzyme activity was more pronounced in the Northern European sites than the southern European, and most moisture limited, site. This suggests that the effect of temperature increases may be observed across all regions; however, the soils of northern Europe may be more sensitive to changes in rainfall patterns than more moisture limited Southern European soils.", "keywords": ["2. Zero hunger", "570", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2005.02.023"}, {"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.2005.02.023", "name": "item", "description": "10.1016/j.soilbio.2005.02.023", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2005.02.023"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2005-10-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2005.08.008", "type": "Feature", "geometry": null, "properties": {"license": "Closed Access", "updated": "2026-04-03T16:17:36Z", "type": "Journal Article", "created": "2005-09-23", "title": "Fire Exclusion And Nitrogen Mineralization In Low Elevation Forests Of Western Montana", "description": "Abstract   Little is known regarding how fire exclusion influences nitrogen (N) cycling in low elevation forests of western Montana. Nor is it clear how the change in fire frequency that has resulted from forest management has influenced ecosystem function in terms of plant\u2013soil\u2013microbe interactions. A fire chronosequence approach was used to examine the influence of forest succession on soil biochemical properties and microbimal activity at 10 sites with varying time since fire (2\u2013130 years). The rate of decomposition of buried tongue depressors and cotton strips, was found to decrease significantly (R2=0.410, P=0.087 and R2=0.761, P=0.003, respectively) with time since fire (TSF). Net N mineralization and nitrification, as estimated by resin sorbed       NH   4  +      and       NO   3  \u2212      concentrations, both exhibited significant non-linear decreases (R2=0.870, P=0.000 and R2=0.620, P=0.007, respectively) with TSF. Nitrification potential measured using an aerated soil slurry method, also decreased significantly (R2=0.595, P=0.009) with TSF. These decreases in N availability along with an increase in the metabolic quotient and a decrease in labile C pools with TSF indicated a decline in substrate quality and microbial activity with secondary forest succession. The concentration of total phenols in mineral soil showed no significant trend with TSF, but was negatively correlated (R2=0.486, P=0.025) with resin sorbed       NO   3  \u2212      concentration indicating either enhanced immobilization or perhaps chemical inhibition. These results imply that biochemical processes (decomposition and N transformations) may be limited by the lack of available substrate and potentially as a result of rapid immobilization, chemical inhibition or a combination of both at least partially induced by changes in vegetation with TSF. Our results suggest that N availability in ponderosa pine ecosystems of the inland Northwest are directly dependent upon fire history and secondary successional stage.", "keywords": ["0106 biological sciences", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2005.08.008"}, {"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.2005.08.008", "name": "item", "description": "10.1016/j.soilbio.2005.08.008", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2005.08.008"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-05-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2005.03.016", "type": "Feature", "geometry": null, "properties": {"license": "Closed Access", "updated": "2026-04-03T16:17:36Z", "type": "Journal Article", "created": "2005-04-30", "title": "Microbial Carbon Dynamics In Nitrogen Amended Arctic Tundra Soil: Measurement And Model Testing", "description": "We examined the responses of grazers (protozoa and nematodes) and their main food sources to low levels of nitrogen (N) fertilisation and applied carbon (C) flux models to our data. Replicate plots of tundra soil adjacent to the Kongsfjorden (Svalbard 78\u00b0N) were amended with ammonium and nitrate at concentrations of 1 and 5 kg N ha\u22121 to assess the impact of anthropogenic N deposition over three summers. Bacterial abundance as determined using the fluorochrome SYBR Green and epifluorescence microscopy ranged between 9.73\u00d7108 and 102.49\u00d7108 cells/g dry wt of soil, with a significant response to N addition occurring only during the second sampling in 2001. Despite little change in bacterial biomass, bacterial production (measured by the incorporation of 3H thymidine into DNA) during the second sampling in 2002, increased in NH4 enriched plots compared to control and NO3 amended plots, indicating that NH4 was the preferred source of inorganic N. The main bacterial predators were heterotrophic flagellates (HNAN) and naked amoebae, which showed no significant response to the N addition. HNAN showed a correlation with bacterial abundance suggesting a dependence on bacteria as a food source. The inability of a microbial C flux model to fit our data (RWSS/data=18.6, r2=0.088) was at least partly due to insufficient bacterial production to meet the C demands of predator taxa, and high variability in the data over time. This is reflected in the performance statistics for model variants where select microbial taxa and data were removed. The optimal model in terms of predictive utility was a model with data from 2002 only, minus naked amoebae (RWSS/data=2.45, r2=0.806).", "keywords": ["0106 biological sciences", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences"], "contacts": [{"organization": "Stapleton LM, Crout NMJ, Hollas C, Marshall WA, Poulton PR, Tye AM, Laybourn-Parry J,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2005.03.016"}, {"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.2005.03.016", "name": "item", "description": "10.1016/j.soilbio.2005.03.016", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2005.03.016"}, {"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.soilbio.2005.05.002", "type": "Feature", "geometry": null, "properties": {"license": "Closed Access", "updated": "2026-04-03T16:17:36Z", "type": "Journal Article", "created": "2005-06-16", "title": "Soil Microbial Biomass And Activity In Organic Tomato Farming Systems: Effects Of Organic Inputs And Straw Mulching", "description": "Abstract   Organic farming is rapidly expanding worldwide. Plant growth in organic systems greatly depends on the functions performed by soil microbes, particularly in nutrient supply. However, the linkages between soil microbes and nutrient availability in organically managed soils are not well understood. We conducted a long-term field experiment to examine microbial biomass and activity, and nutrient availability under four management regimes with different organic inputs. The experiment was initiated in 1997 by employing different practices of organic farming in a coastal sandy soil in Clinton, NC, USA. Organic practices were designed by applying organic substrates with different C and N availability, either in the presence or absence of wheat\u2013straw mulch. The organic substrates used included composted cotton gin trash (CGT), animal manure (AM) and rye/vetch green manure (RV). A commercial synthetic fertilizer (SF) was used as a conventional control. Results obtained in both 2001 and 2002 showed that microbial biomass and microbial activity were generally higher in organically than conventionally managed soils with CGT being most effective. The CGT additions increased soil microbial biomass C and activity by 103\u2013151% and 88\u2013170% over a period of two years, respectively, leading to a 182\u2013285% increase in potentially mineralizable N, compared to the SF control. Straw mulching further enhanced microbial biomass, activity, and potential N availability by 42, 64, and 30%, respectively, relative to non-mulched soils, likely via improving C and water availability for soil microbes. The findings that microbial properties and N availability for plants differed under different organic input regimes suggest the need for effective residue managements in organic tomato farming systems.", "keywords": ["2. Zero hunger", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "6. Clean water"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2005.05.002"}, {"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.2005.05.002", "name": "item", "description": "10.1016/j.soilbio.2005.05.002", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2005.05.002"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-02-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2005.06.023", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:36Z", "type": "Journal Article", "created": "2005-07-28", "title": "Effects Of Elevated Co2 Concentration On Rhizodeposition From Lolium Perenne Grown On Soil Exposed To 9 Years Of Co2 Enrichment", "description": "Abstract   The effects of enriched CO 2  atmosphere on partitioning of recently assimilated carbon were investigated in a plant-soil-microorganism system in which  Lolium perenne  seedlings were planted into cores inserted into the resident soil within a sward that had been treated with elevated CO 2  for 9 consecutive years, under two N fertilisation levels (Swiss FACE experiment). The planted cores were excavated from the ambient (35\u00a0Pa pCO 2 ) and enriched (60\u00a0Pa pCO 2 ) rings at two dates, in spring and autumn, during the growing season. The cores were brought back to the laboratory for  14 C labelling of shoots in order to trace the transfer of recently assimilated C both within the plant and to the soil and microbial biomass. At the spring sampling, high N supply stimulated shoot and total dry matter production. Consistently, high N enhanced the allocation of recently fixed C to shoots, and reduced it to belowground compartments. Elevated CO 2  had no consequences for DM or the pattern of C allocation. At the autumn sampling, at high N plot, yield of  L. perenne  was stimulated by elevated CO 2 . Consistently,  14 C was preferentially allocated aboveground and, consequently belowground recent C allocation was depressed and rhizodeposition reduced. At both experimental periods, total soil C content was similar in all treatments, providing no evidence for soil carbon sequestration in the Swiss Free Air CO 2  Enrichment experiment (FACE) after 9 years of enrichment. Recently assimilated C and soil C were mineralised faster in soils from enriched rings, suggesting a CO 2 -induced shift in the microbial biomass characteristics (structure, diversity, activity) and/or in the quality of the root-released organic compounds.", "keywords": ["580", "RHIZODEPOSITION", "0106 biological sciences", "2. Zero hunger", "RAY GRASS ANGLAIS", "MINERALISATION", "RHIZOSPHERE RESPIRATION", "04 agricultural and veterinary sciences", "[SDV.SA.SDS]Life Sciences [q-bio]/Agricultural sciences/Soil study", "15. Life on land", "01 natural sciences", "MICROBIAL BIOMASSE", "CARBON SEQUESTRATION", "0401 agriculture", " forestry", " and fisheries", "ELEVATED CO2", "[SDV.SA.SDS] Life Sciences [q-bio]/Agricultural sciences/Soil study", "NITROGEN FERTILISATION"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2005.06.023"}, {"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.2005.06.023", "name": "item", "description": "10.1016/j.soilbio.2005.06.023", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2005.06.023"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-04-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2007.03.012", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:38Z", "type": "Journal Article", "created": "2007-04-24", "title": "Soil Carbon Turnover And Sequestration In Native Subtropical Tree Plantations", "description": "Approximately 30% of global soil organic carbon (SOC) is stored in subtropical and tropical ecosystems but it is being rapidly lost due to continuous deforestation. Tree plantations are advocated as a C sink, however, little is known about rates of C turnover and sequestration into soil organic matter under subtropical and tropical tree plantations. We studied changes in SOC in a chronosequence of hoop pine (Araucaria cwunninghamii) plantations established on former rainforest sites in seasonally dry subtropical Australia. SOC, delta C-13, and light fraction organic C (LF C < 1.6 g cm(-3)) Were determined in plantations, secondary rainforest and pasture. We calculated loss of rainforest SOC after clearing for pasture using an isotope mixing model, and used the decay rate of rainforest-derived C to predict input of hoop pine-derived C into the soil. Total SOC stocks to 100 cm depth were significantly (P < 0.01) higher under rainforest (241 t ha(-1)) and pasture (254 t ha(-1)) compared to hoop pine (176-211 t ha(-1)). We calculated that SOC derived from hoop pine inputs ranged from 32% (25 year plantation) to 61% (63 year plantation) of total SOC in the 0-30 cm soil layer, but below 30 cm all C originated from rainforest. These results were compared to simulations made by the Century soil organic matter model. The Century model Simulations showed that lower C stocks under hoop pine plantations were due to reduced C inputs to the slow turnover C pool, such that this pool only recovers to within 45% of the original rainforest C pool after 63 years. This may indicate differences in soil C stabilization mechanisms under hoop pine plantations compared with rainforest and pasture. These results demonstrate that subtropical hoop pine plantations do not rapidly sequester SOC into long-term storage pools, and that alternative plantation systems may need to be investigated to achieve greater soil C sequestration. (c) 2007 Elsevier Ltd. All rights reserved.", "keywords": ["Araucaria", "C-13", "Soil Science", "Land-use Change", "Storage", "Puerto-rico", "Century model", "01 natural sciences", "C1", "light fraction carbon", "Pasture", "300103 Soil Chemistry", "Southern Queensland", "Rain-forest", "0105 earth and related environmental sciences", "tree plantations", "Organic-matter Dynamics", "770702 Land and water management", "04 agricultural and veterinary sciences", "15. Life on land", "Long-term Trends", "carbon sequestration", "soil organic carbon", "Forest Conversion", "Continuous Cultivation", "0401 agriculture", " forestry", " and fisheries"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2007.03.012"}, {"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.2007.03.012", "name": "item", "description": "10.1016/j.soilbio.2007.03.012", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2007.03.012"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2007-08-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2005.09.009", "type": "Feature", "geometry": null, "properties": {"license": "Closed Access", "updated": "2026-04-03T16:17:37Z", "type": "Journal Article", "created": "2005-10-28", "title": "Temperature And Soil Moisture Interactively Affected Soil Net N Mineralization In Temperate Grassland In Northern China", "description": "Intact soil cores from three adjacent sites (Site A: grazed, Site B: fenced for 4 years, and Site C: fenced for 24 years) were incubated in the laboratory to examine effects of temperature, soil moisture, and their interactions on net nitrification and N mineralization rates in the Inner Mongolia grassland of Northern China. Incubation temperature significantly influenced net nitrification and N mineralization rates in all the three grassland sites. There were no differences in net nitrification or N mineralization rates at lower temperatures (K10, 0, and 5 8C) whereas significant differences were found at higher temperatures (15, 25, and 35 8C). Soil moisture profoundly impacted net nitrification and N mineralization rates in all the three sites. Interactions of temperature and moisture significantly affected net nitrification and mineralization rates in Site B and C, but not in Site A. Temperature sensitivity of net nitrification and N mineralization varied with soil moisture and grassland site. Our results showed greater net N mineralization rates and lower concentrations of inorganic N in the grazed site than those in the fenced sites, suggesting negative impacts of grazing on soil N pools and net primary productivity. q 2005 Elsevier Ltd. All rights reserved.", "keywords": ["2. Zero hunger", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2005.09.009"}, {"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.2005.09.009", "name": "item", "description": "10.1016/j.soilbio.2005.09.009", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2005.09.009"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-05-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2005.03.007", "type": "Feature", "geometry": null, "properties": {"license": "Closed Access", "updated": "2026-04-03T16:17:36Z", "type": "Journal Article", "created": "2005-04-29", "title": "Long-Term Application Of Organic Manure And Nitrogen Fertilizer On N2o Emissions, Soil Quality And Crop Production In A Sandy Loam Soil", "description": "Abstract   A long-term field experiment was established to determine the influence of mineral fertilizer (NPK) or organic manure (composed of wheat straw, oil cake and cottonseed cake) on soil fertility. A tract of calcareous fluvo-aquic soil (aquic inceptisol) in the Fengqiu State Key Experimental Station for Ecological Agriculture (Fengqiu county, Henan province, China) was fertilized beginning in September 1989 and N 2 O emissions were examined during the maize and wheat growth seasons of 2002\u20132003. The study involved seven treatments: organic manure (OM), half-organic manure plus half-fertilizer N (1/2 OMN), fertilizer NPK (NPK), fertilizer NP (NP), fertilizer NK (NK), fertilizer PK (PK) and control (CK). Manured soils had higher organic C and N contents, but lower pH and bulk densities than soils receiving the various mineralized fertilizers especially those lacking P, indicating that long-term application of manures could efficiently prevent the leaching of applied N from and increase N content in the plowed layer. The application of manures and fertilizers at a rate of 300\u00a0kg\u00a0N\u00a0ha \u22121 \u00a0year \u22121  significantly increased N 2 O emissions from 150\u00a0g\u00a0N 2 O-N\u00a0ha \u22121 \u00a0year \u22121  in the CK treatment soil to 856\u00a0g\u00a0N 2 O-N\u00a0ha \u22121 \u00a0year \u22121  in the OM treatment soil; however, there was no significant difference between the effect of fertilizer and manure on N 2 O emission. More N 2 O was released during the 102-day maize growth season than during the 236-day wheat growth season in the N-fertilized soils but not in N-unfertilized soils. N 2 O emission was significantly affected by soil moisture during the maize growth season and by soil temperature during the wheat growth season. In sum, this study showed that manure added to a soil tested did not result in greater N 2 O emission than treatment with a N-containing fertilizer, but did confer greater benefits for soil fertility and the environment.", "keywords": ["2. Zero hunger", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "6. Clean water"], "contacts": [{"organization": "Zucong Cai, Lei Meng, Weixin Ding,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2005.03.007"}, {"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.2005.03.007", "name": "item", "description": "10.1016/j.soilbio.2005.03.007", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2005.03.007"}, {"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.soilbio.2005.04.005", "type": "Feature", "geometry": null, "properties": {"license": "Closed Access", "updated": "2026-04-03T16:17:36Z", "type": "Journal Article", "created": "2005-05-06", "title": "Plant Invasion Of Native Grassland On Serpentine Soils Has No Major Effects Upon Selected Physical And Biological Properties", "description": "Plant invasions alter soil microbial community composition; this study examined whether invasion-induced changes in the soil microbial community were reflected in soil aggregation, an ecosystem property strongly influenced by microorganisms. Soil aggregation is regulated by many biological factors including roots, arbuscular mycorrhizal fungal hyphae, and microbially-derived carbon compounds. We measured root biomass, fungal-derived glomalin-related soil protein (GRSP), and aggregate mean weight diameter in serpentine soils dominated by an invasive plant (Aegilops triuncialis (goatgrass) or Centaurea solstitialis (yellow starthistle)), or by native plants (Lasthenia californica and Plantago erecta, or Hemizonia congesta). Root biomass tended to increase in invaded soils. GRSP concentrations were lower in goatgrass-dominated soils than native soils. In contrast, starthistle dominated soil contained a higher amount of one fraction of GRSP, easily extractable immunoreactive soil protein (EE-IRSP) and a lower amount of another GRSP fraction, easily extractible Bradford reactive soil protein (EE-BRSP). Soil aggregation increased with goatgrass invasion, but did not increase with starthistle invasion. In highly aggregated serpentine soils, small increases in soil aggregation accompanying plant invasion were not related to changes in GRSP and likely have limited ecological significance.", "keywords": ["2. Zero hunger", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2005.04.005"}, {"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.2005.04.005", "name": "item", "description": "10.1016/j.soilbio.2005.04.005", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2005.04.005"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2005-12-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2005.05.024", "type": "Feature", "geometry": null, "properties": {"license": "Closed Access", "updated": "2026-04-03T16:17:36Z", "type": "Journal Article", "created": "2005-07-12", "title": "Interactions Between Plants, Litter And Microbes In Cycling Of Nitrogen And Phosphorus In The Arctic", "description": "Abstract   Estimated nutrient mineralization in northern nutrient-poor ecosystems, measured as differences in soil inorganic nutrients before and after a period of soil incubation in the absence of plants and litter, usually shows a discrepancy of much lower rates than plant nutrient uptake rates. In plots that had been pre-treated by 12 year of warming and fertilizer addition, we incubated soils together with litter and plants added and examined whether the absence of plants and litter in \u2018traditional\u2019 incubations could explain the discrepancy. The pre-treatment had no effect on nitrogen (N) mineralization but increased phosphorus (P) mineralization, while litter addition decreased N and increased P mineralization but without any effect on plant and microbial N and P sequestration. Incubations of soils with plants increased N mobilization to the soil inorganic plus plant pools several-fold as compared to the net mineralization in soils without plants. Hence, the presence of plants stimulated mobilization of the growth-limiting N. The growth-sufficient P was not affected by the presence of plants, however. Furthermore, increased plant and microbial N uptake correlated positively, which speaks against competition for plant available N from soil microbes in N-constrained ecosystems, at least during the time-span of 10 weeks the experiment lasted, and instead suggests facilitation.", "keywords": ["0106 biological sciences", "2. Zero hunger", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2005.05.024"}, {"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.2005.05.024", "name": "item", "description": "10.1016/j.soilbio.2005.05.024", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2005.05.024"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-03-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2005.06.025", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-04-03T16:17:36Z", "type": "Journal Article", "created": "2005-07-28", "title": "Sources And Mechanisms Of Priming Effect Induced In Two Grassland Soils Amended With Slurry And Sugar", "description": "The mechanisms and specific sources of priming effects, i.e. short term changes of soil organic matter (SOM) decomposition after substance addition, are still not fully understood. These uncertainties are partly method related, i.e. until now only two C sources in released CO2 could be identified. We used a novel approach separating three carbon (C) sources in CO2 efflux from soil. The approach is based on combination of different substances originated from C3 or C4 plants in different treatments and identical transformation of substances like C3 sugar (from sugar beet) and C4 sugar (from sugar cane). We investigated the influence of the addition of two substances having different microbial utilizability, i.e. slurry and sugar on the SOM or/and slurry decomposition in two grassland soils with different levels of Corg (2.3 vs. 5.1% C). Application of slurry to the soil slightly accelerated the SOM decomposition. Addition of sugar lead to changes of SOM and slurry decomposition clearly characterized by two phases: immediately after sugar addition, the microorganisms switched from the decomposition of hardly utilizable SOM to the decomposition of easily utilizable sugar. This first phase was very short (2\u20103 days), hence was frequently missed in other experiments. The second phase showed a slightly increased slurry and SOM decomposition (compared to the soil without sugar). The separation of three sources in CO2 efflux from grassland soils allowed us to conclude that the C will be utilized according to its utilizability: sugarOslurryOSOM. Additionally, decomposition of more inert C (here SOM) during the period of intensive sugar decomposition was strongly reduced (negative priming effect). We conclude that, priming effects involve a chain of mechanisms: (i) preferential substrate utilization, (ii) activation of microbial biomass by easily utilizable substrate (iii) subsequent increased utilization of following substrates according to their utilizability, and (iv) decline to initial state. q 2005 Elsevier Ltd. All rights reserved.", "keywords": ["2. Zero hunger", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "6. Clean water", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2005.06.025"}, {"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.2005.06.025", "name": "item", "description": "10.1016/j.soilbio.2005.06.025", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2005.06.025"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-04-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2007.04.019", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-04-03T16:17:38Z", "type": "Journal Article", "created": "2007-05-31", "title": "Interannual And Interseasonal Soil Co2 Efflux And Voc Exchange Rates In A Mediterranean Holm Oak Forest In Response To Experimental Drought", "description": "Open AccessPeer reviewed", "keywords": ["2. Zero hunger", "Drought", "Seasonality", "Soil VOCs", "15. Life on land", "01 natural sciences", "6. Clean water", "13. Climate action", "CO2 efflux", "Soil monoterpenes", "Soil temperature", "Soil moisture", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2007.04.019"}, {"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.2007.04.019", "name": "item", "description": "10.1016/j.soilbio.2007.04.019", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2007.04.019"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2007-10-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2005.10.002", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:37Z", "type": "Journal Article", "created": "2005-11-09", "title": "Short And Long-Term Effects Of Elevated Co2 On Lolium Perenne Rhizodeposition And Its Consequences On Soil Organic Matter Turnover And Plant N Yield", "description": "It is still unclear whether elevated CO 2  increases plant root exudation and consequently affects the soil microbial biomass. The effects of elevated CO 2  on the fate of the C and nitrogen (N) contained in old soil organic matter pools is also unclear. In this study the short and long-term effects of elevated CO 2  on C and N pools and fluxes were assessed by growing isolated plants of ryegrass (Lolium perenne) in glasshouses at elevated and ambient atmospheric CO 2  and using soil from the New Zealand FACE site that had >4 years exposure to CO 2  enrichment. Using  14 CO 2  pulse labelling, the effects of elevated CO 2  on C allocation within the plant-soil system were studied. Under elevated CO 2  more root derived C was found in the soil and in the microbial biomass 48 h after labelling. The increased availability of substrate significantly stimulated soil microbial growth and acted as priming effect, enhancing native soil organic matter decomposition regardless of the mineral N supply. Despite indications of faster N cycling in soil under elevated CO 2 , N availability to plants stayed unchanged. Soil previously exposed to elevated CO 2  exhibited a higher N cycling rate but again there was no effect on plant N uptake. With respect to the difficulties of extrapolating glasshouse experiment results to the field, we concluded that the accumulation of coarse organic matter observed in the field under elevated CO 2  was probably not created by an imbalance between C and N but was likely to be due to more complex phenomena involving soil mesofauna and/or other nutrients limitations.", "keywords": ["580", "RHIZODEPOSITION", "2. Zero hunger", "RAY GRASS ANGLAIS", "PRIMING EFFECT", "15N", "RYEGRASS", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "[SDV.SA.SDS]Life Sciences [q-bio]/Agricultural sciences/Soil study", "15. Life on land", "ELEVATED CO2", "[SDV.SA.SDS] Life Sciences [q-bio]/Agricultural sciences/Soil study"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2005.10.002"}, {"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.2005.10.002", "name": "item", "description": "10.1016/j.soilbio.2005.10.002", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2005.10.002"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-06-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2005.08.007", "type": "Feature", "geometry": null, "properties": {"license": "Closed Access", "updated": "2026-04-03T16:17:36Z", "type": "Journal Article", "created": "2005-09-22", "title": "Nitrous Oxide Production Of Heavy Metal Contaminated Soil", "description": "Arsenic (As), lead (Pb), copper (Cu) and zinc (Zn) can be found in large concentrations in mine spills of central and northern Mexico. Interest in these heavy metals has increased recently as they contaminate drinking water and aquifers in large parts of the world and severely affect human health, but little is known about how they affect biological functioning of soil. Soils were sampled in seven locations along a gradient of heavy metal contamination with distance from a mine in San Luis Potosi (Mexico), active since about 1800 AD. C mineralization and N2O production were monitored in an aerobic incubation experiment. Concentrations of As in the top 0\u201310\u00a0cm soil layer ranged from 8 to 22,992\u00a0mg\u00a0kg\u22121, from 31 to 1845\u00a0mg\u00a0kg\u22121 for Pb, from 27 to 1620\u00a0mg\u00a0kg\u22121 for Cu and from 81 to 4218\u00a0mg\u00a0kg\u22121 for Zn. There was a significant negative correlation between production rates of CO2 and concentrations of As, Pb, Cu and Zn, and there was a significant positive correlation with pH, water holding capacity (WHC), total N and soil organic C. There was a significant negative correlation (P<0.05) between production rate of nitrous oxide (N2O) attributed to nitrification by the inhibition method in soil incubated at 50% WHC and total concentrations of Pb and Zn, and there was a significant positive correlation (P<0.05) with pH and total N content. There was a significant negative correlation (P<0.05) between the production rate of N2O attributed to denitrification by the inhibition method in soil incubated at 100% WHC and total concentrations of Pb, Cu and Zn, and a significant positive correlation (P<0.01) with pH; there was a significant positive correlation (P<0.05) between the production of N2O attributed to other processes by the inhibition method and WHC, inorganic C and clay content. A negative value for production rate of N2O attributed to nitrifier denitrification by the inhibition method was obtained at 100% WHC. The large concentrations of heavy metals in soil inhibited microbial activity and the production rate of N2O attributed to nitrification by the inhibition method when soil was incubated at 50% WHC and denitrification when soil was incubated at 100% WHC. The inhibitor/suppression technique used appeared to be flawed, as negative values for nitrifier denitrification were obtained and as the production rate of N2O through denitrification increased when soil was incubated with C2H2.", "keywords": ["2. Zero hunger", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "6. Clean water", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2005.08.007"}, {"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.2005.08.007", "name": "item", "description": "10.1016/j.soilbio.2005.08.007", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2005.08.007"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-05-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2005.08.009", "type": "Feature", "geometry": null, "properties": {"license": "Closed Access", "updated": "2026-04-03T16:17:36Z", "type": "Journal Article", "created": "2005-09-22", "title": "Impacts Of Herbivorous Insects On Decomposer Communities During The Early Stages Of Primary Succession In A Semi-Arid Woodland", "description": "Changes in nutrient inputs due to aboveground herbivory may influence the litter and soil microbial community responsible for processes such as decomposition. The mesophyll-feeding scale insect (Matsucoccus acalyptus) found near Sunset Crater National Monument in northern Arizona, USA significantly increases pinon (Pinus edulis) needle litter nitrogen (N) and phosphorus (P) concentrations by 50%, as well as litter inputs to soil by 21%. Because increases in needle litter quality and quantity of this magnitude should affect the microbial communities responsible for decomposition, we tested the hypothesis that insect herbivory causes a shift in soil microbial and litter microarthropod function. Four major findings result from this research: (1) Despite increases in needle inputs due to herbivory, soil carbon (C) was 56% lower beneath scale-susceptible trees than beneath resistant trees; however, soil moisture, N, and pH were similar among treatments. (2) Microbial biomass was 80% lower in soils beneath scale-susceptible trees when compared to resistant trees in the dry season, while microbial enzyme activities were lower beneath susceptible trees in the wet season. (3) Bacterial community-level physiological profiles differed significantly between susceptible and resistant trees during the dry season but not during the wet season. (4) There was a 40% increase in Oribatida and 23% increase in Prostigmata in susceptible needle litter relative to resistant litter. Despite these changes, the magnitude of microbial biomass, activity, and community structure response to herbivory was lower than expected and appears to take a long time to develop. These results suggest that herbivores impact soils in subtle, but important ways; we suggest that while litter chemistry may strongly mediate soil fertility and microbial communities in mesic ecosystems, the influence is lower than expected in this primary succession xeric ecosystem where season mediates differences in microbial populations. Understanding how insect herbivores alter the distribution of susceptible and resistant trees and their associated decomposer communities in arid environments may lead to better prediction of how these ecosystems respond to climatic change.", "keywords": ["0106 biological sciences", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences"], "contacts": [{"organization": "George W. Koch, Aim\u00e9e T. Classen, Aim\u00e9e T. Classen, Thomas G. Whitham, Stephen C. Hart, Neil S. Cobb, Jennie DeMarco,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2005.08.009"}, {"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.2005.08.009", "name": "item", "description": "10.1016/j.soilbio.2005.08.009", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2005.08.009"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-05-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2005.10.020", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:37Z", "type": "Journal Article", "created": "2006-01-05", "title": "Response Of Microbial Activity And Microbial Community Composition In Soils To Long-Term Arsenic And Cadmium Exposure", "description": "Abstract   Arsenic (As) and cadmium (Cd) in soils can affect soil microbial function and community composition and, therefore, may have effects on soil ecosystem functioning. The aim of our study was to assess the effects of long-term As and Cd contamination on soil microbial community composition and soil enzyme activities. We analyzed soils that have been contaminated 25 years ago and at present still show enhanced levels of either As, 18 and 39\u00a0mg\u00a0kg\u22121, or Cd, 34 and 134\u00a0mg\u00a0kg\u22121. Soil without heavy metal addition served as control. Polymerase chain reaction (PCR) followed by denaturing gradient gel electrophoresis (DGGE) showed that bacterial community composition in As and Cd contaminated soils differed from that in the control soil. The same was true for the microbial community composition assessed by analysis of respiratory quinones. Soil fungi and Proteobacteria appeared to be tolerant towards As and Cd, while other groups of bacteria were reduced. The decline in alkaline phosphatase, arylsulphatase, protease and urease activities in the As- and Cd-contaminated soils was correlated with a decrease of respiratory quinones occuring in Actinobacteria and Firmicutes. Xylanase activity was unaffected or elevated in the contaminated soils which was correlated with a higher abundance of fungal quinones, and quinones found in Proteobacteria.", "keywords": ["2. Zero hunger", "quinones", "cadmium", "arsenic", "microbial community composition", "denaturing gradient gel electrophoresis", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "333", "6. Clean water", "enzyme activities", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2005.10.020"}, {"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.2005.10.020", "name": "item", "description": "10.1016/j.soilbio.2005.10.020", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2005.10.020"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-06-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2005.11.009", "type": "Feature", "geometry": null, "properties": {"license": "Closed Access", "updated": "2026-04-03T16:17:37Z", "type": "Journal Article", "created": "2006-02-07", "title": "Qualitative And Quantitative Differences In Particulate Organic Matter Fractions In Organic And Conventional Farming Systems", "description": "Abstract   To quantify functionally important differences in soil organic matter (SOM) that result from use of different farming practices, soils from 9 long-term trials comparing manure+legume-based organic, legume-based organic, and conventional farming systems were collected and particulate organic matter (POM) was fractionated to reflect its position within the soil matrix. The free, light POM (FPOM;  53\u00a0\u03bcm) obtained by wet sieving. Fraction C, N, and hydrolyzable N (quantified using the Illinois test (IL-N)) were determined. Organic farming systems had greater quantities of C and N in the OPOM and CF and, greater IL-N contents in all POM fractions considered. The OPOM's C:N ratio (16\u201319) and was least in the manure+legume-based organic, intermediate in the legume-based organic, and greatest in the conventional systems (    P    0.10    ). Trends in OPOM C:N and IL-N abundance suggested occluded POM was most decomposed, and possibly a greater N reservoir, in the manured soils. The FPOM quality reflected the residues added to each system and its removal improved resolution of quality-based differences in POM associated with long-term management. Subdivision of POM revealed differences in its quality that were not evident using the undifferentiated CF. Quantification of hydrolysable N (IL-N) in POM did not enhance our understanding of management's affect on SOM quality. This multi-site comparison showed organic management simultaneously increased the size of the labile N reservoir and the amount of POM protected within aggregates; and that, occluded POM is more decomposed in manure+legume- than in legume-based organic systems. The characteristics of POM reveal how organic practices improve SOM and suggest the nutrient and substrate decay dynamics of organic systems may differ as a result of the N fertilization strategies they employ.", "keywords": ["2. Zero hunger", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "6. Clean water", "0105 earth and related environmental sciences"], "contacts": [{"organization": "Michelle M. Wander, Emily E. Marriott,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2005.11.009"}, {"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.2005.11.009", "name": "item", "description": "10.1016/j.soilbio.2005.11.009", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2005.11.009"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-07-01T00:00:00Z"}}, {"id": "10.1111/gcbb.12248", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:20:00Z", "type": "Journal Article", "created": "2015-02-03", "title": "Carbon Footprint Of Rice Production Under Biochar Amendment - A Case Study In A Chinese Rice Cropping System", "description": "Abstract<p>As a controversial strategy to mitigate global warming, biochar application into soil highlights the need for life cycle assessment before large\uffe2\uff80\uff90scale practice. This study focused on the effect of biochar on carbon footprint of rice production. A field experiment was performed with three treatments: no residue amendment (Control), 6 t\uffc2\uffa0ha\uffe2\uff88\uff921\uffc2\uffa0yr\uffe2\uff88\uff921 corn straw (CS) amendment, and 2.4\uffc2\uffa0t\uffc2\uffa0ha\uffe2\uff88\uff921\uffc2\uffa0yr\uffe2\uff88\uff921 corn straw\uffe2\uff80\uff90derived biochar amendment (CBC). Carbon footprint was calculated by considering carbon source processes (pyrolysis energy cost, fertilizer and pesticide input, farmwork, and soil greenhouse gas emissions) and carbon sink processes (soil carbon increment and energy offset from pyrolytic gas). On average over three consecutive rice\uffe2\uff80\uff90growing cycles from year 2011 to 2013, the CS treatment had a much higher carbon intensity of rice (0.68\uffc2\uffa0kg CO2\uffe2\uff80\uff90C equivalent (CO2\uffe2\uff80\uff90Ce) kg\uffe2\uff88\uff921\uffc2\uffa0grain) than that of Control (0.24\uffc2\uffa0kg CO2\uffe2\uff80\uff90Ce\uffc2\uffa0kg\uffe2\uff88\uff921 grain), resulting from large soil CH4 emissions. Biochar amendment significantly increased soil carbon pool and showed no significant effect on soil total N2O and CH4 emissions relative to Control; however, due to a variation in net electric energy input of biochar production based on different pyrolysis settings, carbon intensity of rice under CBC treatment ranged from 0.04 to 0.44\uffc2\uffa0kg CO2\uffe2\uff80\uff90Ce\uffc2\uffa0kg\uffe2\uff88\uff921 grain. The results indicated that biochar strategy had the potential to significantly reduce the carbon footprint of crop production, but the energy\uffe2\uff80\uff90efficient pyrolysis technique does matter.</p>", "keywords": ["2. Zero hunger", "CH4", "N2O", "04 agricultural and veterinary sciences", "15. Life on land", "/dk/atira/pure/sustainabledevelopmentgoals/responsible_consumption_and_production; name=SDG 12 - Responsible Consumption and Production", "Carbon footprint", "7. Clean energy", "01 natural sciences", "6. Clean water", "12. Responsible consumption", "Biochar", "Life cycle assessment", "/dk/atira/pure/sustainabledevelopmentgoals/affordable_and_clean_energy; name=SDG 7 - Affordable and Clean Energy", "13. Climate action", "8. Economic growth", "0401 agriculture", " forestry", " and fisheries", "Rice", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1111/gcbb.12248"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/GCB%20Bioenergy", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/gcbb.12248", "name": "item", "description": "10.1111/gcbb.12248", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/gcbb.12248"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2015-03-26T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2005.11.008", "type": "Feature", "geometry": null, "properties": {"license": "Closed Access", "updated": "2026-04-03T16:17:37Z", "type": "Journal Article", "created": "2006-01-27", "title": "Elevated Enzyme Activities In Soils Under The Invasive Nitrogen-Fixing Tree Falcataria Moluccana", "description": "Like other N-fixing invasive species in Hawaii, Falcataria moluccana dramatically alters forest structure, litterfall quality and quantity, and nutrient dynamics. We hypothesized that these biogeochemical changes would also affect the soil microbial community and the extracellular enzymes responsible for carbon and nutrient mineralization. Across three sites differing in substrate texture and age (50\u2013300 years old), we measured soil enzyme activities and microbial community parameters in native-dominated and Falcataria-invaded plots. Falcataria invasion increased acid phosphatase (AP) activities to >90\u00a0\u03bcmol\u00a0g\u22121\u00a0soil\u00a0h\u22121 compared to 30\u201360\u00a0\u03bcmol\u00a0g\u22121\u00a0soil\u00a0h\u22121 in native-dominated stands. Extracellular enzymes that mineralize carbon and nitrogen also increased significantly under Falcataria on the younger substrates. By contrast, total microbial biomass and mycorrhizal abundance changed little with invasion or substrate. However, fungal:bacterial ratios declined dramatically with invasion, from 2.69 and 1.35 to <0.89 on the 50- and 200-year-old substrates, respectively. These results suggest that Falcataria invasion alters the composition and function of belowground soil communities in addition to forest structure and biogeochemistry. The increased activities of AP and other enzymes that we observed are consistent with a shift toward phosphorus limitation and rapid microbial processing of litterfall C and N following Falcataria invasion.", "keywords": ["0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2005.11.008"}, {"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.2005.11.008", "name": "item", "description": "10.1016/j.soilbio.2005.11.008", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2005.11.008"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-07-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2005.11.011", "type": "Feature", "geometry": null, "properties": {"license": "Closed Access", "updated": "2026-04-03T16:17:37Z", "type": "Journal Article", "created": "2006-01-27", "title": "Increased N Availability In Grassland Soils Modifies Their Microbial Communities And Decreases The Abundance Of Arbuscular Mycorrhizal Fungi", "description": "Abstract   Two complementary studies were performed to examine (1) the effect of 18 years of nitrogen (N) fertilization, and (2) the effects of N fertilization during one growing season on soil microbial community composition and soil resource availability in a grassland ecosystem. N was added at three different rates: 0, 5.44, and 27.2\u00a0g\u00a0N\u00a0m\u22122\u00a0y\u22121. In both studies, Schizachyrium scoparium was the dominant plant species before N treatments were applied. Soil microbial communities from each experiment were characterized using fatty acid methyl ester (FAME) analysis. Discriminant analysis of the FAMEs separated the three N fertilizer treatments in both experiments, indicating shifts in the composition of the microbial communities. In general, plots that received N fertilizer at low or high application rates for 18 years showed increased proportions of bacterial FAMEs and decreased fungal FAMEs. In particular, control plots contained a significantly higher proportion of fungal FAMEs C18:1(cis9) and C18:2(cis9,12) and of the arbuscular mycorrhizal fungal (AMF) FAME, C16:1(cis11), than both of the N addition treatment plots. A significant negative effect of N fertilization on the AMF FAME, C16:1(cis11), was measured in the short-term experiment. Our results indicate that high rates of anthropogenic N deposition can lead to significant changes in the composition of soil microbial communities over short periods and can even disrupt the relationship between AMF and plants.", "keywords": ["2. Zero hunger", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "6. Clean water"], "contacts": [{"organization": "Kate L. Bradley, Jean Knops, Rhae A. Drijber,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2005.11.011"}, {"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.2005.11.011", "name": "item", "description": "10.1016/j.soilbio.2005.11.011", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2005.11.011"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-07-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2005.11.029", "type": "Feature", "geometry": null, "properties": {"license": "Closed Access", "updated": "2026-04-03T16:17:37Z", "type": "Journal Article", "created": "2006-02-20", "title": "Effects Of Tree Harvesting, Forest Floor Removal, And Compaction On Soil Microbial Biomass, Microbial Respiration, And N Availability In A Boreal Aspen Forest In British Columbia", "description": "Abstract   The effects of timber harvesting and the resultant soil disturbances (compaction and forest floor removal) on relative soil water content, microbial biomass C and N contents (C mic  and N mic ), microbial biomass C:N ratio (C mic -to-N mic ), microbial respiration, metabolic quotient ( q CO 2 ), and available N content in the forest floor and the uppermost mineral soil (0\u20133\u00a0cm) were assessed in a long-term soil productivity (LTSP) site and adjacent mature forest stands in northeastern British Columbia (Canada). A combination of principal component analysis and redundancy analysis was used to test the effects of stem-only harvest, whole tree harvest plus forest floor removal, and soil compaction on the studied variables. Those properties in the forest floor were not affected by timber harvesting or soil compaction. In the mineral soil, compaction increased soil total C and N contents, relative water content, and N mic  by 45%, 40%, 34% and 72%, respectively, and decreased C mic -to-N mic  ratio by 29%. However, these parameters were not affected by stem only harvesting or whole tree harvesting plus forest floor removal, contrasting the reduction of white spruce and aspen growth following forest floor removal and soil compaction reported in an earlier study. Those results suggest that at the study site the short-term effects of timber harvesting, forest floor removal, and soil compaction are rather complex and that microbial populations might not be affected by the perturbations in the same way as trees, at least not in the short term.", "keywords": ["13. Climate action", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2005.11.029"}, {"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.2005.11.029", "name": "item", "description": "10.1016/j.soilbio.2005.11.029", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2005.11.029"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-07-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2005.12.010", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:37Z", "type": "Journal Article", "created": "2006-02-24", "title": "Microbial Communities, Biomass, And Activities In Soils As Affected By Freeze Thaw Cycles", "description": "Abstract   Two Finnish agricultural soils (peat soil and loamy sand) were exposed to four freeze-thaw cycles (FTC), with a temperature change from \u221217.3\u00b10.4\u00a0\u00b0C to +4.1\u00b10.4\u00a0\u00b0C. Control cores from both soils were kept at constant temperature (+6.6\u00b12.0\u00a0\u00b0C) without FTCs. Soil N 2 O and CO 2  emissions were monitored during soil thawing, and the effects of FTCs on soil microbes were studied. N 2 O emissions were extremely low in peat soil, possibly due to low soil water content. Loamy sand had high N 2 O emission, with the highest emission after the second FTC. Soil freeze-thaw increased anaerobic respiration in both soil types during the first 3\u20134 FTCs, and this increase was higher in the peat soil. The microbial community structure and biomass analysed with lipid biomarkers (phospholipid fatty acids, 3- and 2- hydroxy fatty acids) were not affected by freezing-thawing cycles, nor was soil microbial biomass carbon (MIB-C). Molecular analysis of the microbial community structure with temperature gradient gel electrophoresis (TGGE) also showed no changes due the FTCs. These results show that freezing and thawing of boreal soils does not have a strong effect on microbial biomass or community structure.", "keywords": ["hiilidioksidi", "570", "biomassa", "j\u00e4\u00e4tymis-sulamissykli", "mikrobiyhteis\u00f6n rakenne", "lipidit", "maamikrobiologia", "j\u00e4\u00e4tyminen", "structure", "lipid biomarkers", "maaper\u00e4", "mikrobiyhteis\u00f6rakenne", "biomass", "TGGE", "lipidibiomarkkeri", "N2O", "sulaminen", "dityppioksidi", "04 agricultural and veterinary sciences", "15. Life on land", "freeze-thaw cycle", "6. Clean water", "13. Climate action", "l\u00e4mp\u00f6tilamuutokset", "0401 agriculture", " forestry", " and fisheries", "CO2", "Ka", "microbial community"], "contacts": [{"organization": "Koponen, H., Jaakkola, T., Kein\u00e4nen-Toivola, M.M., Kaipainen, S., Tuomainen, J., Servomaa, K., Martikainen, P.J.,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2005.12.010"}, {"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.2005.12.010", "name": "item", "description": "10.1016/j.soilbio.2005.12.010", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2005.12.010"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-07-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2006.01.012", "type": "Feature", "geometry": null, "properties": {"license": "Closed Access", "updated": "2026-04-03T16:17:37Z", "type": "Journal Article", "created": "2006-03-25", "title": "Carbon, Nitrogen And Temperature Controls On Microbial Activity In Soils From An Antarctic Dry Valley", "description": "Abstract   The Antarctic dry valleys are characterized by extremely low temperatures, dry conditions and lack of conspicuous terrestrial autotrophs, but the soils contain organic C, emit CO2 and support communities of heterotrophic soil organisms. We have examined the role of modern lacustrine detritus as a driver of soil respiration in the Garwood Valley, Antarctica, by characterizing the composition and mineralization of both lacustrine detritus and soil organic matter, and relating these properties to soil respiration and the abiotic controls on soil respiration. Laboratory mineralization of organic C in soils from different, geomorphically defined, landscape elements at 10\u00a0\u00b0C was comparable with decomposition of lacustrine detritus (mean residence times between 115 and 345\u00a0d for the detritus and 410 and 1670\u00a0d for soil organic matter). The chemical composition of the detritus (C-to-N ratio=9:1\u201312:1 and low alkyl-C-to-O-alkyl-C ratio in solid-state 13C nuclear magnetic resonance spectroscopy) indicated that it was a labile, high quality resource for micro-organisms. Initial (0\u20136\u00a0d at 10\u00a0\u00b0C) respiratory responses to glucose, glycine and NH4Cl addition were positive in all the soils tested, indicating both C and N limitations on soil respiration. However, over the longer term (up to 48\u00a0d at 10\u00a0\u00b0C) differential responses occurred. Glucose addition led to net C mineralization in most of the soils. In the lake shore soils, which contained accumulated lacustrine organic matter, glucose led to substantial priming of the decomposition of the indigenous organic matter, indicating a C or energetic limitation to mineralization in that soil. By contrast, over 48\u00a0d, glycine addition led to no net C mineralization in all soils except stream edge and lake shore soils, indicating either substantial assimilation of the added C (and N), or no detectable utilization of the glycine. The Q10 values for basal respiration over the \u22120.5\u201320\u00a0\u00b0C temperature range were between 1.4 and 3.3 for the different soils, increasing to between 3.4 and 6.9 for glucose-induced respiration, and showed a temperature dependence with Q10 increasing with declining temperature. Taken together, our results strongly support contemporaneous lacustrine detritus, blown from the lake shore, as an important driver of soil respiration in the Antarctic dry valley soils.", "keywords": ["13. Climate action", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2006.01.012"}, {"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.2006.01.012", "name": "item", "description": "10.1016/j.soilbio.2006.01.012", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2006.01.012"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-10-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2005.11.012", "type": "Feature", "geometry": null, "properties": {"license": "Closed Access", "updated": "2026-04-03T16:17:37Z", "type": "Journal Article", "created": "2006-01-31", "title": "Changes In Soil Biological And Biochemical Characteristics In A Long-Term Field Trial On A Sub-Tropical Inceptisol", "description": "Abstract   Soil organic carbon (SOC), microbial biomass carbon (MBC), their ratio (MBC/SOC) which is also known as microbial quotient, soil respiration, dehydrogenase and phosphatase activities were evaluated in a long-term (31 years) field experiment involving fertility treatments (manure and inorganic fertilizers) and a maize (Zea mays L.)\u2013wheat (Triticum aestivum L.)\u2013cowpea (Vigna unguiculata L.) rotation at the Indian Agricultural Research Institute near New Delhi, India. Applying farmyard manure (FYM) plus NPK fertilizer significantly increased SOC (4.5\u20137.5\u00a0g\u00a0kg\u22121), microbial biomass (124\u2013291\u00a0mg\u00a0kg\u22121) and microbial quotient from 2.88 to 3.87. Soil respiration, dehydrogenase and phosphatase activities were also increased by FYM applications. The MBC response to FYM+100% NPK compared to 100% NPK (193 vs. 291\u00a0mg\u00a0kg\u22121) was much greater than that for soil respiration (6.24 vs. 6.93\u00a0\u03bcl\u00a0O2\u00a0g\u22121\u00a0h\u22121) indicating a considerable portion of MBC in FYM plots was inactive. Dehydrogenase activity increased slightly as NPK rates were increased from 50% to 100%, but excessive fertilization (150% NPK) decreased it. Acid phosphatase activity (31.1 vs. 51.8\u00a0\u03bcg\u00a0PNP\u00a0g\u22121\u00a0h\u22121) was much lower than alkali phosphatase activity (289 vs. 366\u00a0\u03bcg\u00a0PNP\u00a0g\u22121\u00a0h\u22121) in all treatments. Phosphatase activity was influenced more by season or crop (e.g. tilling wheat residue) than fertilizer treatment, although both MBC and phosphatase activity were increased with optimum or balanced fertilization. SOC, MBC, soil respiration and acid phosphatase activity in control (no NPK, no manure) treatment was lower than uncultivated reference soil, and soil respiration was limiting at N alone or NP alone treatments.", "keywords": ["2. Zero hunger", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "6. Clean water", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2005.11.012"}, {"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.2005.11.012", "name": "item", "description": "10.1016/j.soilbio.2005.11.012", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2005.11.012"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-07-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2005.12.008", "type": "Feature", "geometry": null, "properties": {"license": "Closed Access", "updated": "2026-04-03T16:17:37Z", "type": "Journal Article", "created": "2006-02-24", "title": "Mycorrhizae Activity And Diversity In Conventional And Organic Apple Orchards From Brazil", "description": "Abstract   The aim of this study was to characterize the impacts of a conventional, an organic apple orchard and a native grassland on the activity and diversity of arbuscular mycorrhizal fungi (AMF) located at the south of Brazil during winter and summer. AMF activity was measured by the mycorrhizal inoculum potential (MIP), mycorrhizal fungal hyphal length (HL), easily extractable and total Bradford-reactive soil protein (BRSP). AMF diversity was represented by richness, Shannon diversity index and number of spores. Orchards reduced the MIP of the soil and increased the HL when compared to the grassland site. The amount of easily extractable BRSP was not different among orchards and between seasons evaluated, with overall mean value of 1.23\u00a0mg\u00a0g \u22121 . However, the amount of total-BRSP was smaller in the conventional orchard (4.55\u00a0mg\u00a0g \u22121 ) than in the organic orchard (4.91\u00a0mg\u00a0g \u22121 ) and in the native grassland (5.12\u00a0mg\u00a0g \u22121 ). T-BRSP and total organic carbon were strongly correlated in the grassland during the winter, suggesting the contribution of this protein for carbon stocks in the native soil of this region. The organic orchard presented the highest AMF richness, but sporulation and Shannon diversity index were larger in the conventional orchard. Our data suggest that the conventional orchard promoted higher impacts on the natural condition of AMF activity, being considered an unadvisable practice to soil conservation.", "keywords": ["2. Zero hunger", "0106 biological sciences", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2005.12.008"}, {"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.2005.12.008", "name": "item", "description": "10.1016/j.soilbio.2005.12.008", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2005.12.008"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-07-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2006.01.013", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:37Z", "type": "Journal Article", "created": "2006-03-21", "title": "How Important Is N2o Production In Removing Atmospherically Deposited Nitrogen From Uk Moorland Catchments?", "description": "Nitrate (NO3\u2212) leaching due to anthropogenic nitrogen (N) deposition is an environmental problem in many parts of the UK uplands, associated with surface water acidification and affecting lake nutrient balances. It is often assumed that gaseous return of deposited N to the atmosphere as N2O through denitrification may provide an important sink for N. This assumption was tested for four moorland catchments (Allt a\u2019Mharcaidh in the Cairngorms, Afon Gwy in mid-Wales, Scoat Tarn in the English Lake District and River Etherow in the southern Pennines), covering gradients of atmospheric N deposition and surface water NO3\u2212 leaching, through a combination of field and laboratory experiments. Field measurements of N2O fluxes from static chambers with and without additions of NH4NO3 solution were carried out every 4 weeks over 1 yr. Wetted soil cores from the same field plots were used in experimental laboratory incubations at 5 and 15 \u00b0C with and without additions of NH4NO3 solution, followed by measurement of N2O fluxes. Field measurements showed that significant N2O fluxes occurred in only a very small number of plots with most showing zero values for much of the year. The maximum fluxes were 0.24 kg-N/ha/yr from unamended plots at the River Etherow and 0.49 kg-N/ha/yr from plots with NH4NO3 additions at the Allt a\u2019Mharcaidh. Laboratory incubation experiments demonstrated that large N2O fluxes could be induced by warming and NH4NO3 additions, with the top 5 cm of soil cores responsible for the largest fluxes, reaching 11.8 kg-N/ha/yr from a podsol at Scoat Tarn. Acetylene block experiments showed that while N2 was not likely to be a significant denitrification product in these soils, reduced N2O fluxes indicated that nitrification was an important source of N2O in many cases. A simple model of denitrification suggesting that 10\u201380% of net N inputs may be denitrified from non-agricultural soils was found to greatly over-estimate fluxes in the UK uplands. The proportion of deposition denitrified was found to be much closer to the IPCC suggested value of 1% with an upper limit of 10%. Interception of N deposition by vegetation may greatly reduce the net supply of N from this source, while soil acidification or other factors limiting carbon supply to soil microbes may prevent large denitrification fluxes even where NO3\u2212 supply is not limiting.", "keywords": ["denitrification", "nitrous oxide", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "nitrification", "6. Clean water", "moorlands", "nitrogen deposition", "acidification", "13. Climate action", "nitrate leaching", "nitrogen saturation", "0401 agriculture", " forestry", " and fisheries", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2006.01.013"}, {"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.2006.01.013", "name": "item", "description": "10.1016/j.soilbio.2006.01.013", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2006.01.013"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-08-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2006.04.003", "type": "Feature", "geometry": null, "properties": {"license": "Closed Access", "updated": "2026-04-03T16:17:37Z", "type": "Journal Article", "created": "2006-05-09", "title": "Storage And Dynamics Of Carbon And Nitrogen In Soil Physical Fractions Following Woody Plant Invasion Of Grassland", "description": "Abstract   Woody plant invasion of grasslands is prevalent worldwide. In the Rio Grande Plains of Texas, subtropical thorn woodlands dominated by C3 trees/shrubs have been replacing C4 grasslands over the past 150\u00a0yr, resulting in increased soil organic carbon (SOC) storage and concomitant increases in soil total nitrogen (STN). To elucidate mechanisms of change in SOC and STN, we separated soil organic matter into specific size/density fractions and determined the concentration of C and N in these fractions. Soils were collected from remnant grasslands (Time 0) and woody plant stands (ages 10\u2013130\u00a0yr). Rates of whole-soil C and N accrual in the upper 15\u00a0cm of the soil profile averaged 10\u201330\u00a0g\u00a0C\u00a0m\u22122\u00a0yr\u22121 and 1\u20133\u00a0g\u00a0N\u00a0m\u22122\u00a0yr\u22121, respectively, over the past 130\u00a0yr of woodland development. These rates of accumulation have increased soil C and N stocks in older wooded areas by 100\u2013500% relative to remnant grasslands. Probable causes of these increased pool sizes include higher rates of organic matter production in wooded areas, greater inherent biochemical resistance of woody litter to decomposition, and protection of organic matter by stabilization within soil macro- and microaggregates. The mass proportions of the free light fraction ( 250\u00a0\u03bcm) increased linearly with time following woody plant invasion of grassland. Conversely, the mass proportions of free microaggregate (53\u2013250\u00a0\u03bcm) and free silt+clay (", "keywords": ["2. Zero hunger", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2006.04.003"}, {"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.2006.04.003", "name": "item", "description": "10.1016/j.soilbio.2006.04.003", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2006.04.003"}, {"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": "10.1016/j.soilbio.2006.04.003,", "type": "Feature", "geometry": null, "properties": {"license": "Closed Access", "updated": "2026-04-03T16:17:37Z", "type": "Journal Article", "created": "2006-05-09", "title": "Storage And Dynamics Of Carbon And Nitrogen In Soil Physical Fractions Following Woody Plant Invasion Of Grassland", "description": "Abstract   Woody plant invasion of grasslands is prevalent worldwide. In the Rio Grande Plains of Texas, subtropical thorn woodlands dominated by C3 trees/shrubs have been replacing C4 grasslands over the past 150\u00a0yr, resulting in increased soil organic carbon (SOC) storage and concomitant increases in soil total nitrogen (STN). To elucidate mechanisms of change in SOC and STN, we separated soil organic matter into specific size/density fractions and determined the concentration of C and N in these fractions. Soils were collected from remnant grasslands (Time 0) and woody plant stands (ages 10\u2013130\u00a0yr). Rates of whole-soil C and N accrual in the upper 15\u00a0cm of the soil profile averaged 10\u201330\u00a0g\u00a0C\u00a0m\u22122\u00a0yr\u22121 and 1\u20133\u00a0g\u00a0N\u00a0m\u22122\u00a0yr\u22121, respectively, over the past 130\u00a0yr of woodland development. These rates of accumulation have increased soil C and N stocks in older wooded areas by 100\u2013500% relative to remnant grasslands. Probable causes of these increased pool sizes include higher rates of organic matter production in wooded areas, greater inherent biochemical resistance of woody litter to decomposition, and protection of organic matter by stabilization within soil macro- and microaggregates. The mass proportions of the free light fraction ( 250\u00a0\u03bcm) increased linearly with time following woody plant invasion of grassland. Conversely, the mass proportions of free microaggregate (53\u2013250\u00a0\u03bcm) and free silt+clay (", "keywords": ["2. Zero hunger", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2006.04.003,"}, {"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.2006.04.003,", "name": "item", "description": "10.1016/j.soilbio.2006.04.003,", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2006.04.003,"}, {"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": "10.1016/j.soilbio.2006.04.039", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:37Z", "type": "Journal Article", "created": "2006-05-23", "title": "Carbohydrate Dynamics In Particle-Size Fractions Of Sandy Spodosols Following Forest Conversion To Maize Cropping", "description": "Abstract   In southwest France, much of the forested land on sandy spodosols has been converted to continuous maize cropping in the last few decades. To evaluate the impacts of this change on soil organic matter properties, we compared total organic C and neutral and amino sugars content in whole soil and particle size separates of two forested, and five related sites that had been either clear-cut for 12 and 18 mo, or cultivated to maize for 4\u201322\u00a0yr. Soil carbohydrates accounted for 4\u20137% of the total organic C across all sites. Soil organic C contents of clear-cut and cultivated sites were only 57\u201379% of the average value measured in forested sites. Accordingly, carbohydrate content of clear-cut and cultivated sites were only 35\u201366% of the value in forested sites. Ordering the sites in a chronosequence indicated that both total organic C and carbohydrate contents decreased with an increase in time elapsed since clear-cutting and maize cultivation. The only exception was a partial recovery of carbohydrate content in the site that had been under continuous maize for 22\u00a0yr. The clay+silt fraction (0\u201350\u00a0\u03bcm) was enriched in carbohydrates, mainly of microbial origin, whereas the sand size fractions (50\u2013200 and 200\u20132000\u00a0\u03bcm) contained fewer carbohydrates which were mainly of plant origin. Monosaccharide analysis of particle size separates revealed significant differences in carbohydrate composition between sites. Relative to forested sites, the coarse and fine sand fractions in clear-cut and cultivated sites were depleted in carbohydrates and were relatively enriched in plant-derived carbohydrates. Carbohydrate content of the clay+silt fraction drastically decreased upon clear-cutting. Amino sugar content was consistently lower in clear-cut and cultivated sites than in forested sites, indicating that microbial populations were negatively affected by clear-cutting and cultivation. The fungal population appeared more sensitive than bacteria to these land-use changes as indicated by a greater decline in glucosamine than in muramic acid contents.", "keywords": ["PINE FOREST", "2. Zero hunger", "PODZOSOL", "550", "BIOCHIMIE", "CARBOHYDRATES", "PIN MARITIME", "04 agricultural and veterinary sciences", "[SDV.SA.SDS]Life Sciences [q-bio]/Agricultural sciences/Soil study", "15. Life on land", "01 natural sciences", "PARTICLE SIZE SEPARATE", "SUCRES", "MAIZE CROPPING", "0401 agriculture", " forestry", " and fisheries", "[SDV.SA.SDS] Life Sciences [q-bio]/Agricultural sciences/Soil study", "FRACTIONNEMENT GRANULOMETRIQUE", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2006.04.039"}, {"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.2006.04.039", "name": "item", "description": "10.1016/j.soilbio.2006.04.039", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2006.04.039"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-09-01T00:00:00Z"}}], "links": [{"rel": "self", "type": "application/geo+json", "title": "This document as GeoJSON", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Life&offset=4150&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=Life&offset=4150&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": "prev", "title": "items (prev)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Life&offset=4100", "hreflang": "en-US"}, {"rel": "next", "type": "application/geo+json", "title": "items (next)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Life&offset=4200", "hreflang": "en-US"}], "numberMatched": 13009, "numberReturned": 50, "distributedFeatures": [], "timeStamp": "2026-04-04T09:31:44.672850Z"}