{"type": "FeatureCollection", "features": [{"id": "10.1016/j.agee.2007.01.008", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:15:19Z", "type": "Journal Article", "created": "2007-02-10", "title": "Predicted Soil Organic Carbon Stocks And Changes In The Brazilian Amazon Between 2000 And 2030", "description": "Abstract   Currently we have little understanding of the impacts of land use change on soil C stocks in the Brazilian Amazon. Such information is needed to determine impacts on the global C cycle and the sustainability of agricultural systems that are replacing native forest. The aim of this study was to predict soil carbon stocks and changes in the Brazilian Amazon during the period between 2000 and 2030, using the GEFSOC soil carbon (C) modelling system. In order to do so, we devised current and future land use scenarios for the Brazilian Amazon, taking into account: (i) deforestation rates from the past three decades, (ii) census data on land use from 1940 to 2000, including the expansion and intensification of agriculture in the region, (iii) available information on management practices, primarily related to well managed pasture versus degraded pasture and conventional systems versus no-tillage systems for soybean ( Glycine max ) and (iv) FAO predictions on agricultural land use and land use changes for the years 2015 and 2030. The land use scenarios were integrated with spatially explicit soils data (SOTER database), climate, potential natural vegetation and land management units using the recently developed GEFSOC soil C modelling system. Results are presented in map, table and graph form for the entire Brazilian Amazon for the current situation (1990 and 2000) and the future (2015 and 2030). Results include soil organic C (SOC) stocks and SOC stock change rates estimated by three methods: (i) the Century ecosystem model, (ii) the Rothamsted C model and (iii) the intergovernmental panel on climate change (IPCC) method for assessing soil C at regional scale. In addition, we show estimated values of above and belowground biomass for native vegetation, pasture and soybean. The results on regional SOC stocks compare reasonably well with those based on mapping approaches. The GEFSOC system provided a means of efficiently handling complex interactions among biotic-edapho-climatic conditions (>363,000 combinations) in a very large area (\u223c500\u00a0Mha) such as the Brazilian Amazon. All of the methods used showed a decline in SOC stock for the period studied; Century and RothC simulated values for 2030 being about 7% lower than those in 1990. Values from Century and RothC (30,430 and 25,000\u00a0Tg for the 0\u201320\u00a0cm layer for the Brazilian Amazon region were higher than those obtained from the IPCC system (23,400\u00a0Tg in the 0\u201330\u00a0cm layer). Finally, our results can help understand the major biogeochemical cycles that influence soil fertility and help devise management strategies that enhance the sustainability of these areas and thus slow further deforestation.", "keywords": ["land use change", "2. Zero hunger", "clay loam acrisol", "550", "330", "no-tillage", "cropping systems", "04 agricultural and veterinary sciences", "Brazilian Amazon", "regional-scale", "15. Life on land", "matter dynamics", "soil organic carbon", "land-use change", "long-term experiments", "southern brazil", "tropical deforestation", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "regional estimates", "eastern amazonia"]}, "links": [{"href": "https://doi.org/10.1016/j.agee.2007.01.008"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Agriculture%2C%20Ecosystems%20%26amp%3B%20Environment", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.agee.2007.01.008", "name": "item", "description": "10.1016/j.agee.2007.01.008", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.agee.2007.01.008"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2007-09-01T00:00:00Z"}}, {"id": "10.1007/s11258-007-9317-6", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:15:05Z", "type": "Journal Article", "created": "2007-06-20", "title": "Soil Acidity And Nutrient Deficiency In Central Amazonian Heath Forest Soils", "description": "Experiments were carried out to test the effects of liming and nutrient additions on plant growth and soil processes such as C and N mineralisation in three contrasting forest types in central Amazonia: the stunted facies of heath forest (SHF), the tall facies of heath forest (THF) and the surrounding lowland evergreen rain forest (LERF). Calcium-carbonate additions increased soil respiration in the field plots in the SHF; in laboratory incubations, soil respiration was higher in the SHF when soils were fertilised with N, and in THF and LERF after S additions. The addition of N alone or in different combinations generally induced a net immobilisation of soil N. Net nitrification increased during the incubation in SHF and THF soils fertilised with N+P, and in LERF soils fertilised with either N, or P, or CaCO3. In a field experiment using ingrowth bags, a higher fine root production was observed in all forest types when bags were fertilised with CaCl2 or CaCO3, suggesting that Ca may be a limiting nutrient in these soils. Calcium-carbonate addition in a glasshouse bioassay experiment with rice showed an overall positive effect on the survival and growth of the seedlings. In other treatments where soil pH was not raised, the rice showed acute toxicity symptoms, poor root and shoot growth and high mortality. Similar results were yielded in a field experiment, using naturally established seedlings in the field plots in SHF, THF and LERF. It is concluded that the acute H+ ion toxicity is a major growth-limiting factor for non-adapted plants in heath forest soils in central Amazonia.", "keywords": ["0106 biological sciences", "2. Zero hunger", "Survival", "Seedling", "Forest Soil", "Growth", "Soil Chemistry", "South America", "15. Life on land", "01 natural sciences", "Root", "Amazonia", "Mortality", "Nutrient Limitation", "Acid Soil", "Heathland"], "contacts": [{"organization": "Luiz\u00e3o, Fl\u00e1vio Jesus, Luiz\u00e2o, Regina Celi Costa, Proctor, John,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1007/s11258-007-9317-6"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Plant%20Ecology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s11258-007-9317-6", "name": "item", "description": "10.1007/s11258-007-9317-6", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s11258-007-9317-6"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2007-06-21T00:00:00Z"}}, {"id": "10.1016/j.agee.2003.12.008", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:15:18Z", "type": "Journal Article", "created": "2004-02-05", "title": "Effects Of Forest Conversion To Pasture On Soil Carbon Content And Dynamics In Brazilian Amazonia", "description": "Abstract   Soils play an important role in the carbon cycle, and deforestation in the tropics affects both soil carbon storage and CO2 release into the atmosphere. The consequences of deforestation and conversion to pasture for soil carbon content and dynamics were examined in two soil types differing mainly by their texture. Two chronosequences were selected, each consisting of an intact forest and three pastures of different ages (4, 8, 15 years and 3, 9, 15 years, respectively). One chronosequence is located in the central part of the Brazilian Amazon basin, where the soils are clayey ferralsols, and the second in the Eastern Brazilian Amazon Basin, where the soils are sandy clayey acrisols. In the upper layer the C content of clayey soils was three times higher than in the sandy soils, but despite the differences in soil texture, the C distribution in the particle-size fractions was quite similar. In the two chronosequences, the conversion to pasture induced a slight increase in C content. Bulk density increases were greater on soils with lower clay contents. The       13   C    measurements, which allowed to calculate the distribution of C derived from forest and from pasture, showed that all the particle-size fractions incorporated C derived from pasture and that a significant proportion of the young organic matter is rapidly trapped in the finest fractions. Although the proportions of pasture-derived C were higher in the sandy soils than in the clayey soils, the amounts of pasture-derived C in the particle-size fractions were 2\u20133 times larger in the clayey soils than in the sandy soils.", "keywords": ["rain-forest", "550", "ZONE TROPICALE", "c-13 natural abundance", "TEXTURE", "[SDV.SA.SDS]Life Sciences [q-bio]/Agricultural sciences/Soil study", "630", "Carbon Cycle", "C-13 isotope", "Amazonia", "EVOLUTION DES SOLS SOUS CULTURE", "STRUCTURE DU SOL", "soil carbon storage", "particle-size fractions", "Pasture", "cultivated oxisols", "ANALYSE ISOTOPIQUE", "SABLE", "eastern amazonia", "Deforestation", "[SDV.SA.SDS] Life Sciences [q-bio]/Agricultural sciences/Soil study", "Acrisol", "2. Zero hunger", "tropical soils Organic-matter dynamics", "Brasil", "size-fractions", "PATURAGE", "turnover", "Soil Carbon", "04 agricultural and veterinary sciences", "South America", "15. Life on land", "CARBONE ORGANIQUE", "STOCK ORGANIQUE", "ARGILE", "0401 agriculture", " forestry", " and fisheries", "DEFORESTATION", "texture"], "contacts": [{"organization": "Desjardins, T., Barros, E., Sarrazin, M., Girardin, C., Mariotti, A.,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.agee.2003.12.008"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Agriculture%2C%20Ecosystems%20%26amp%3B%20Environment", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.agee.2003.12.008", "name": "item", "description": "10.1016/j.agee.2003.12.008", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.agee.2003.12.008"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2004-07-01T00:00:00Z"}}, {"id": "10.1016/j.rse.2018.03.035", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:16:38Z", "type": "Journal Article", "created": "2018-04-09", "title": "Enhanced canopy growth precedes senescence in 2005 and 2010 Amazonian droughts", "description": "Abstract   Unprecedented droughts hit southern Amazonia in 2005 and 2010, causing a sharp increase in tree mortality and carbon loss. To better predict the rainforest's response to future droughts, it is necessary to understand its behavior during past events. Satellite observations provide a practical source of continuous observations of Amazonian forest. Here we used a passive microwave-based vegetation water content record (i.e., vegetation optical depth, VOD), together with multiple hydrometeorological observations as well as conventional satellite vegetation measures, to investigate the rainforest canopy dynamics during the 2005 and 2010 droughts. During the onset of droughts in the wet-to-dry season (May\u2013July) of both years, we found large-scale positive anomalies in VOD, leaf area index (LAI) and enhanced vegetation index (EVI) over the southern Amazonia. These observations are very likely caused by enhanced canopy growth. Concurrent below-average rainfall and above-average radiation during the wet-to-dry season can be interpreted as an early arrival of normal dry season conditions, leading to enhanced new leaf development and ecosystem photosynthesis, as supported by field observations. Our results suggest that further rainfall deficit into the subsequent dry season caused water and heat stress during the peak of 2005 and 2010 droughts (August\u2013October) that exceeded the tolerance limits of the rainforest, leading to widespread negative VOD anomalies over the southern Amazonia. Significant VOD anomalies were observed mainly over the western part in 2005 and mainly over central and eastern parts in 2010. The total area with significant negative VOD anomalies was comparable between these two drought years, though the average magnitude of significant negative VOD anomalies was greater in 2005. This finding broadly agrees with the field observations indicating that the reduction in biomass carbon uptake was stronger in 2005 than 2010. The enhanced canopy growth preceding drought-induced senescence should be taken into account when interpreting the ecological impacts of Amazonian droughts.", "keywords": ["0301 basic medicine", "550", "Canopy water content", "Amazonian droughts", "satellite", "15. Life on land", "01 natural sciences", "6. Clean water", "Vapor pressure deficit", "Surface temperature", "03 medical and health sciences", "Passive microwave", "Satellite", "13. Climate action", "Soil water deficit", "canopy water content", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://scholarworks.iupui.edu/bitstream/1805/17654/1/Liu_2018_enhanced.pdf"}, {"href": "https://doi.org/10.1016/j.rse.2018.03.035"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Remote%20Sensing%20of%20Environment", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.rse.2018.03.035", "name": "item", "description": "10.1016/j.rse.2018.03.035", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.rse.2018.03.035"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2018-06-01T00:00:00Z"}}, {"id": "10.1016/j.still.2010.07.011", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:17:03Z", "type": "Journal Article", "created": "2010-08-15", "title": "Impact Of Pasture, Agriculture And Crop-Livestock Systems On Soil C Stocks In Brazil", "description": "Abstract   Changes in land use can result in either sources or sinks of atmospheric carbon (C), depending on management practices. In Brazil, significant changes in land use result from the conversion of native vegetation to pasture and agriculture, conversion of pasture to agriculture and, more recently, the conversion of pasture and agriculture to integrated crop-livestock systems (ICL). The ICL system proposes a diversity of activities that include the strategic incorporation of pastures to agriculture so as to benefit both. In agricultural areas, for example, the implementation of ICL requires the production of quality forage for animals between crops as well as the production of straw to facilitate the sustainability of the no-tillage (NT) management system. The objective of this study was to evaluate the modifications in soil C stocks resulting from the main processes involved in the changes of land use in Amazonia and Cerrado biomes. For comparison purposes, areas under native vegetation, pastures, crop succession and ICL under different edapho-climatic conditions in Amazonia and Cerrado biomes were evaluated. This study demonstrated that the conversion of native vegetation to pasture can cause the soil to function either as a source or a sink of atmospheric CO2, depending on the land management applied. Non-degraded pasture under fertile soil showed a mean accumulation rate of 0.46\u00a0g\u00a0ha\u22121\u00a0year\u22121. Carbon losses from pastures implemented in naturally low fertile soil ranged from 0.15 to 1.53\u00a0Mg\u00a0ha\u22121\u00a0year\u22121, respectively, for non-degraded and degraded pasture. The conversion of native vegetation to agriculture in areas under the ICL system, even when cultivated under NT, resulted in C losses of 1.31 in six years and of 0.69\u00a0Mg\u00a0ha\u22121 in 21 years. The conversion of a non-degraded pasture to cropland (soybean/sorghum) released, in average, 1.44 Mg of C ha\u22121year\u22121to the atmosphere.  The ICL system in agricultural areas has shown evidences that it always functions as a sink of C with accumulation rates ranging from 0.82 to 2.58\u00a0Mg\u00a0ha\u22121\u00a0year\u22121. The ICL produces soil C accumulation and, as a consequence, reduces atmospheric CO2 in areas formerly cultivated under crop succession. However, the magnitude of C accumulation in soil depends on factors such as the types of crops, the edapho-climatic conditions and the amount of time the area is under ICL.", "keywords": ["[SDV.SA]Life Sciences [q-bio]/Agricultural sciences", "550", "limiting water range", "01 natural sciences", "630", "atlantic forest", "Amazonia", "Crop-livestock systems", "Land use change", "0105 earth and related environmental sciences", "2. Zero hunger", "[SDV.SA] Life Sciences [q-bio]/Agricultural sciences", "region", "Crop-livestock", "native cerrado", "organic-carbon sequestration", "grassland management", "nitrogen stocks", "Cerrado", "04 agricultural and veterinary sciences", "15. Life on land", "greenhouse-gas emissions", "matter", "6. Clean water", "brachiaria pastures", "Soil carbon stock", "13. Climate action", "tillage", "systems", "0401 agriculture", " forestry", " and fisheries"]}, "links": [{"href": "https://doi.org/10.1016/j.still.2010.07.011"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20and%20Tillage%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.still.2010.07.011", "name": "item", "description": "10.1016/j.still.2010.07.011", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.still.2010.07.011"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2010-09-01T00:00:00Z"}}, {"id": "10.1029/95gb02148", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:17:28Z", "type": "Journal Article", "created": "2004-02-04", "title": "Belowground Cycling Of Carbon In Forests And Pastures Of Eastern Amazonia", "description": "<p>Forests in seasonally dry areas of eastern Amazonia near Paragominas, Par\uffc3\uffa1, Brazil, maintain an evergreen forest canopy through an extended dry season by taking up soil water through deep (&gt;1 m) roots. Belowground allocation of C in these deep\uffe2\uff80\uff90rooting forests is very large (1900 g C m\uffe2\uff88\uff922 yr\uffe2\uff88\uff921) relative to litterfall (460 g C m\uffe2\uff88\uff922 yr\uffe2\uff88\uff921). The presence of live roots drives an active carbon cycle deeper than l m in the soil. Although bulk C concentrations and 14C contents of soil organic matter at &gt;l\uffe2\uff80\uff90m depths are low, estimates of turnover from fine\uffe2\uff80\uff90root inputs, CO2 production, and the 14C content of CO2 produced at depth show that up to 15% of the carbon inventory in the deep soil has turnover times of decades or less. Thus the amount of fast\uffe2\uff80\uff90cycling soil carbon between 1 and 8\uffe2\uff80\uff90m depths (2\uffe2\uff80\uff933 kg C m\uffe2\uff88\uff922, out of 17\uffe2\uff80\uff9318 kg C m\uffe2\uff88\uff922) is significant compared to the amount present in the upper meter of soil (3\uffe2\uff80\uff934 kg C m\uffe2\uff88\uff922 out of 10\uffe2\uff80\uff9311 kg C m\uffe2\uff88\uff922). A model of belowground carbon cycling derived from measurements of carbon stocks and fluxes, and constrained using carbon isotopes, is used to predict C fluxes associated with conversion of deep\uffe2\uff80\uff90rooting forests to pasture and subsequent pasture management. The relative proportions and turnover times of active (including detrital plant material; 1\uffe2\uff80\uff933 year turnover), slow (decadal and shorter turnover), and passive (centennial to millennial turnover) soil organic matter pools are determined by depth for the forest soil, using constraints from measurements of C stocks, fluxes, and isotopic content. Reduced carbon inputs to the soil in degraded pastures, which are less productive than the forests they replace, lead to a reduction in soil carbon inventory and \uffce\uff9414C, in accord with observations. Managed pastures, which have been fertilized with phosphorous and planted with more productive grasses, show increases in C and 14C over forest values. Carbon inventory increases in the upper meter of managed pasture soils are partially offset by predicted carbon losses due to death and decomposition of fine forest roots at depths &gt;1 m in the soil. The major adjustments in soil carbon inventory in response to land management changes occur within the first decade after conversion. Carbon isotopes are shown to be more sensitive indicators of recent accumulation or loss of soil organic matter than direct measurement of soil C inventories.</p>", "keywords": ["cycling", "decomposition", "model", "rooting", "carbon", "belowground carbon cycling", "carbon cycling", "04 agricultural and veterinary sciences", "South America", "15. Life on land", "Poaceae", "soil", "pasture", "forest", "Amazonia", "soil organic matter", "death", "tropical soil", "0401 agriculture", " forestry", " and fisheries", "phosphorus", "Brazil", "organic matter"]}, "links": [{"href": "https://escholarship.org/content/qt1zb7d8kx/qt1zb7d8kx.pdf"}, {"href": "https://doi.org/10.1029/95gb02148"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Global%20Biogeochemical%20Cycles", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1029/95gb02148", "name": "item", "description": "10.1029/95gb02148", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1029/95gb02148"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "1995-12-01T00:00:00Z"}}, {"id": "10.1046/j.1365-2486.1999.00259.x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:17:42Z", "type": "Journal Article", "created": "2003-03-11", "title": "Soil Carbon Dynamics In Regrowing Forest Of Eastern Amazonia", "description": "Summary<p>The future flora of Amazonia will include significant areas of secondary forest as degraded pastures are abandoned and secondary succession proceeds. The rate at which secondary forests regain carbon (C) stocks and re\uffe2\uff80\uff90establish biogeochemical cycles that resemble those of primary forests will influence the biogeochemistry of the region. Most studies have focused on the effects of deforestation on biogeochemical cycles. In this study, we present data on the recuperation of carbon stocks and carbon fluxes within a secondary forest of the eastern Amazon, and we compare these measurements to those for primary forest, degraded pasture, and productive pasture. Along a transect from a 23\uffe2\uff80\uff90y\uffe2\uff80\uff90old degraded pasture, through a 7\uffe2\uff80\uff90y\uffe2\uff80\uff90old secondary forest, through a 16\uffe2\uff80\uff90year\uffe2\uff80\uff90old secondary forest, and to a primary forest, the \uffce\uffb413C values of soil organic matter (SOM) in the top 10\uffe2\uff80\uff83cm of soil were \uffe2\uff80\uff93\uffe2\uff80\uff8321.0, \uffe2\uff80\uff93\uffe2\uff80\uff8326.5, \uffe2\uff80\uff93\uffe2\uff80\uff8327.4, and \uffe2\uff80\uff93\uffe2\uff80\uff8327.9\uffe2\uff80\uffb0, respectively, indicating that the isotopic signature of SOM from C3 forest plants was rapidly re\uffe2\uff80\uff90established. The degraded pasture also had significant inputs of C from C3 plants. Radiocarbon data indicated that most of the C in the top 10\uffe2\uff80\uff83cm of soil had been fixed by plants during the last 30\uffe2\uff80\uff83years. Differences in soil C inventory among land use types were small compared to uncertainties in their measurement. Root inputs were nearly identical in primary and secondary forests, and litterfall in the secondary forest was 88% of the litterfall rate of the primary forest. In contrast, the secondary forest had only 17% of the above ground biomass. Because of rapid cycling rates of soil C and rapid recovery of C fluxes to and from the soil, the below ground C cycle in this secondary forest was nearly identical with those of the unaltered primary forest.</p>", "keywords": ["forest", "Amazonia", "Ecology", "Life on Land", "13. Climate action", "carbon-13", "carbon-14", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "Biological Sciences", "15. Life on land", "Environmental Sciences", "soil"]}, "links": [{"href": "https://escholarship.org/content/qt9dn6q5xv/qt9dn6q5xv.pdf"}, {"href": "https://doi.org/10.1046/j.1365-2486.1999.00259.x"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Global%20Change%20Biology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1046/j.1365-2486.1999.00259.x", "name": "item", "description": "10.1046/j.1365-2486.1999.00259.x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1046/j.1365-2486.1999.00259.x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "1999-08-01T00:00:00Z"}}, {"id": "10.1111/j.1365-2435.2009.01683.x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:18:32Z", "type": "Journal Article", "created": "2010-01-28", "title": "Impacts Of Experimentally Imposed Drought On Leaf Respiration And Morphology In An Amazon Rain Forest", "description": "Summary<p> 1.\uffe2\uff80\uff82The Amazon region may experience increasing moisture limitation over this century. Leaf dark respiration (R) is a key component of the Amazon rain forest carbon (C) cycle, but relatively little is known about its sensitivity to drought.</p><p> 2.\uffe2\uff80\uff82Here, we present measurements of R standardized to 25\uffe2\uff80\uff83\uffc2\uffb0C and leaf morphology from different canopy heights over 5\uffe2\uff80\uff83years at a rain forest subject to a large\uffe2\uff80\uff90scale through\uffe2\uff80\uff90fall reduction (TFR) experiment, and nearby, unmodified Control forest, at the Caxiuan\uffc3\uffa3 reserve in the eastern Amazon.</p><p> 3.\uffe2\uff80\uff82In all five post\uffe2\uff80\uff90treatment measurement campaigns, mean R at 25\uffe2\uff80\uff83\uffc2\uffb0C was elevated in the TFR forest compared to the Control forest experiencing normal rainfall. After 5\uffe2\uff80\uff83years of the TFR treatment, R per unit leaf area and mass had increased by 65% and 42%, respectively, relative to pre\uffe2\uff80\uff90treatment means. In contrast, leaf area index (L) in the TFR forest was consistently lower than the Control, falling by 23% compared to the pre\uffe2\uff80\uff90treatment mean, largely because of a decline in specific leaf area (S).</p><p> 4.\uffe2\uff80\uff82The consistent and significant effects of the TFR treatment on R, L and S suggest that severe drought events in the Amazon, of the kind that may occur more frequently in future, could cause a substantial increase in canopy carbon dioxide emissions from this ecosystem to the atmosphere.</p>", "keywords": ["tropical forest", "0301 basic medicine", "Through-fall exclusion experiment", "moisture transfer", "03 medical and health sciences", "Specific leaf area", "Amazonia", "Tropical forest", "Keywords: carbon cycle", "Climate change", "Para [Brazil] Climate change", "Caxiuana National Forest", "0303 health sciences", "leaf area index", "Night-time foliar carbon emissions", "exclusion experiment", "15. Life on land", "6. Clean water", "Leaf dark respiration", "forest canopy", "Moisture deficit", "climate change", "13. Climate action", "Leaf area index", "carbon emission", "throughfall", "rainforest", "Brazil"]}, "links": [{"href": "https://openresearch-repository.anu.edu.au/bitstream/1885/79379/5/f5625xPUB7833.pdf.jpg"}, {"href": "https://openresearch-repository.anu.edu.au/bitstream/1885/79379/7/01_Metcalfe_Impacts_of_experimentally_2010.pdf.jpg"}, {"href": "https://doi.org/10.1111/j.1365-2435.2009.01683.x"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Functional%20Ecology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/j.1365-2435.2009.01683.x", "name": "item", "description": "10.1111/j.1365-2435.2009.01683.x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/j.1365-2435.2009.01683.x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2010-04-08T00:00:00Z"}}, {"id": "10.1590/s0044-59672010000100003", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:19:21Z", "type": "Journal Article", "created": "2010-05-05", "title": "Carbono Org\u00e2nico E Biomassa Microbiana Do Solo Em Plantios De Acacia Mangium No Cerrado De Roraima", "description": "<p>O objetivo do estudo foi avaliar os efeitos de plantios de Acacia mangium, localizados no cerrado em Roraima, sobre o carbono org\uffc3\uffa2nico e biomassa microbiana do solo. Foram realizadas amostragens de solo nas profundidades de 0-20 cm e 20-40 cm em dois plantios de A. mangium com cerca de cinco anos de idade, e em duas \uffc3\uffa1reas de Cerrado nativo consideradas refer\uffc3\uffaancia. Um dos plantios de A. mangium (localizado na Fazenda Cigolina) correspondeu a um plantio homog\uffc3\uffaaneo (espa\uffc3\uffa7amento de 3,6 m entre linhas e 2,0 m entre plantas) enquanto que o outro (localizado no Campo Experimental \uffc3\uff81gua Boa - CEAB) correspondeu a um plantio em faixas com duas linhas de plantio (espa\uffc3\uffa7amento de 6 m entre linhas, 2,5 m entre plantas e cerca de 30 m entre faixas). As amostras de solo foram analisadas quanto ao carbono org\uffc3\uffa2nico, carbono da biomassa microbiana, respira\uffc3\uffa7\uffc3\uffa3o basal do solo e quociente metab\uffc3\uffb3lico, al\uffc3\uffa9m de atributos qu\uffc3\uffadmicos de fertilidade. Foi verificado que os plantios de A. mangium n\uffc3\uffa3o proporcionaram aumentos significativos do carbono org\uffc3\uffa2nico do solo em compara\uffc3\uffa7\uffc3\uffa3o \uffc3\uffa0s \uffc3\uffa1reas de refer\uffc3\uffaancia. Entretanto, na m\uffc3\uffa9dia geral, esses plantios proporcionaram aumento do carbono da biomassa microbiana do solo e redu\uffc3\uffa7\uffc3\uffa3o do quociente metab\uffc3\uffb3lico, indicando a possibilidade de ac\uffc3\uffbamulo de carbono org\uffc3\uffa2nico no solo em longo prazo. Tamb\uffc3\uffa9m foi observado que, em compara\uffc3\uffa7\uffc3\uffa3o ao plantio da fazenda Cigolina e \uffc3\uffa0s \uffc3\uffa1reas de refer\uffc3\uffaancia, o carbono microbiano do solo foi maior e acompanhado de menor quociente metab\uffc3\uffb3lico no plantio de A. mangium no CEAB, mostrando que a estrutura de plantio exerceu influ\uffc3\uffaancia sobre a biomassa microbiana do solo.</p>", "keywords": ["0106 biological sciences", "plantios florestais", "Amazonian", "forest plantation", "04 agricultural and veterinary sciences", "quociente metab\u00f3lico", "01 natural sciences", "Amaz\u00f4nia", "Respira\u00e7\u00e3o basal do solo", "0401 agriculture", " forestry", " and fisheries", "Soil basal respiration", "qualidade do solo", "soil quality", "metabolic quotient"]}, "links": [{"href": "https://doi.org/10.1590/s0044-59672010000100003"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Acta%20Amazonica", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1590/s0044-59672010000100003", "name": "item", "description": "10.1590/s0044-59672010000100003", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1590/s0044-59672010000100003"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2010-03-01T00:00:00Z"}}, {"id": "10.3390/f10121125", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:20:24Z", "type": "Journal Article", "created": "2019-12-10", "description": "<p>Agroforestry systems are important, globally affecting 1.2 billion people and covering 0.6 billion hectares. They are often cited for providing ecosystem services, such as augmenting soil fertility via N accumulation and increasing soil C stocks. Improved-fallow slash-and-mulch systems have the potential to do both, while reducing nutrient losses associated with burning. In the absence of burning, these systems also have the potential to grow trees through multiple rotations. This project collected soil, mulch, and biomass data over the course of one 9-year crop-fallow rotation and the first two years of the second rotation. A split-plot design was used to assess the effects of P + K fertilization and inclusion of an N-fixing tree species, Inga edulis, on crop and tree biomass production. Fertilization increased growth and nutrient accumulation during Rotation 1 by an average of 36%, ranging from 11% in Parkia multijuga to 52% in Ceiba pentandra. Residual P + K fertilization improved tree and crop growth 20 months into Rotation 2 by an average of 50%, ranging from 15% in Cedrela odorata to 73% in Schizolobium amazonicum. The improved-fallow slash-and-mulch system increased the rates of secondary succession biomass accumulation (11\uffe2\uff88\uff9215 Mg ha\uffe2\uff88\uff921 yr\uffe2\uff88\uff921) by 41\uffe2\uff80\uff9364% compared to natural succession (7\uffe2\uff80\uff938 Mg ha\uffe2\uff88\uff921 yr\uffe2\uff88\uff921). Furthermore, P + K fertilization increased secondary-succession biomass accumulation by 9\uffe2\uff80\uff9324%. Nutrient accumulation through biomass production was adequate to replace nutrients exported via crop root and timber stem harvests.</p>", "keywords": ["2. Zero hunger", "nutrient content", "Amazonia", "soil N", "agroforestry system", "0401 agriculture", " forestry", " and fisheries", "soil C", "04 agricultural and veterinary sciences", "15. Life on land", "N-fixing trees", "improved-fallow", "native trees", "slash-and-mulch"]}, "links": [{"href": "http://www.mdpi.com/1999-4907/10/12/1125/pdf"}, {"href": "https://doi.org/10.3390/f10121125"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Forests", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.3390/f10121125", "name": "item", "description": "10.3390/f10121125", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.3390/f10121125"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-12-10T00:00:00Z"}}, {"id": "10.5281/zenodo.11421746", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:21:39Z", "type": "Software", "title": "ConFire: State of Wildfires 2023/24", "description": "Project Overview:  This is the first release of our Bayesian-based fire models, designed for fire prediction and analysis using Bayesian inference and simple fire models. The release here is the base code and information used in the 'State of Wildfire's report 2023/24'. https://doi.org/10.5194/essd-2024-218  Key Features:    ConFire fire model now implemented with zero-inflated logistic link distribution  Configuration files for near real-time, attribution and future projections for Greece, Canada, and NW Amazon.  Utilizes various environmental and climatic data for isimip and Copernicus data store  Robust statistical analysis now uses PyMC at version 5 and ArviZ.   Installation and Usage:  For detailed installation and usage instructions, please refer to the README, also in this repository archive.  Acknowledgments:  Special thanks to all contributors and the developers of the dependencies used in this project. Particularly Maria Lucia Ferreira Barbosa,  Douglas Kelley, Chantelle Burton  Full Changelog: https://github.com/douglask3/Bayesian_fire_models/compare/v0.1...SoW23_v0.1", "keywords": ["Canada", "Attribution", "Greece", "Amazonia", "Wildfire", "Climatic changes", "Fire", "Bayesian statistics", "Future projections"], "contacts": [{"organization": "Barbosa, Maria Lucia Ferreira, Kelley, Douglas, Burton, Chantelle, Anderson, Liana,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5281/zenodo.11421746"}, {"rel": "self", "type": "application/geo+json", "title": "10.5281/zenodo.11421746", "name": "item", "description": "10.5281/zenodo.11421746", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5281/zenodo.11421746"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2024-06-03T00:00:00Z"}}, {"id": "10.5281/zenodo.11460232", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:21:40Z", "type": "Software", "title": "ConFire: State of Wildfires 2023/24", "description": "Project Overview:  This is the first release of our Bayesian-based fire models, designed for fire prediction and analysis using Bayesian inference and simple fire models. The release here is the base code and information used in the 'State of Wildfire's report 2023/24'. https://doi.org/10.5194/essd-2024-218  Key Features:    ConFire fire model now implemented with zero-inflated logistic link distribution  Configuration files for near real-time, attribution and future projections for Greece, Canada, and NW Amazon.  Utilizes various environmental and climatic data for isimip and Copernicus data store  Robust statistical analysis now uses PyMC at version 5 and ArviZ.   Installation and Usage:  For detailed installation and usage instructions, please refer to the README, also in this repository archive.  Acknowledgments:  Special thanks to all contributors and the developers of the dependencies used in this project. Particularly Maria Lucia Ferreira Barbosa,  Douglas Kelley, Chantelle Burton  Full Changelog: https://github.com/douglask3/Bayesian_fire_models/compare/v0.1...SoW23_v0.1", "keywords": ["Canada", "Attribution", "Greece", "Amazonia", "Wildfire", "Climatic changes", "Fire", "Bayesian statistics", "Future projections"], "contacts": [{"organization": "Barbosa, Maria Lucia Ferreira, Kelley, Douglas, Burton, Chantelle, Anderson, Liana,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5281/zenodo.11460232"}, {"rel": "self", "type": "application/geo+json", "title": "10.5281/zenodo.11460232", "name": "item", "description": "10.5281/zenodo.11460232", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5281/zenodo.11460232"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2024-06-03T00:00:00Z"}}], "links": [{"rel": "self", "type": "application/geo+json", "title": "This document as GeoJSON", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Amazonia&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=Amazonia&f=html", "hreflang": "en-US"}, {"rel": "collection", "type": "application/json", "title": "Collection URL", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main", "hreflang": "en-US"}, {"type": "application/geo+json", "rel": "first", "title": "items (first)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Amazonia&", "hreflang": "en-US"}, {"rel": "last", "type": "application/geo+json", "title": "items (last)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Amazonia&offset=12", "hreflang": "en-US"}], "numberMatched": 12, "numberReturned": 12, "distributedFeatures": [], "timeStamp": "2026-05-25T09:58:37.878498Z"}