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73 results for “soil carbon stock”
Data from: More than a decade of moderate grazing: No impact on soil organic carbon stocks and enhancement of mineral-associated organic carbon via livestock diversification
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Cropland management impacts on soil organic carbon stock changes in US croplands from 1990 to 2015
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Grazing in a megagrazer-dominated savanna does not reduce soil carbon stocks, even at high intensities
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Drivers of soil organic carbon stock during tropical forest succession
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Woody debris removal modifies carbon stocks and soil properties in a fragmented tropical rainforest
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Tree biomass does not correlate with soil carbon stocks in forest-tundra ecotones along a 1100 km latitudinal gradient in Norway
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Spatial heterogeneity and environmental predictors of permafrost region soil organic carbon stocks
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TeRaCON eight years data - species composition, productivity (NPP), soil carbon emissions and plant carbon stocks:BioCON: Biodiversity, CO2, and Nitrogen
BioCON (Biodiversity, CO2, and Nitrogen) is an ecological experiment started in 1997 at the University of Minnesota's Cedar Creek Ecosystem Science Reserve. BioCON's goal is to explore the ways in which plant communities will respond to three environmental changes that are known to be occurring on a global scale: increasing nitrogen deposition, increasing atmospheric CO2, and decreasing biodiversity. Why Biodiversity, CO2, and Nitrogen? While there are many uncertainties in global change biology, there are also some well documented facts. Some of these are: 1. The amount of carbon dioxide (CO2) in the atmosphere is rising. Since the industrial revolution, the CO2 concentration in the atmosphere has increased from approximately 275 parts per million (ppm) to about 378 ppm today. This has been largely the result of fossil fuel burning. It is expected that CO2 levels will continue to rise, and that by the year 2050 these levels will be approximately 550 ppm. CO2 is the raw material for photosynthesis and is known to affect plant growth and development. 2. The amount of nitrogen moving through terrestrial ecosystems has increased in the recent past. While natural "background" levels of nitrogen fixation have remained constant, human additions to the system through fertilizer production and fossil fuel use have increased dramatically. Nitrogen is a key nutrient for plant growth and plays a critical role in plant community structure and composition in many environments. 3. Biodiversity levels are falling. While the research and data are not as complete as they are for CO2 and nitrogen, data indicate that the number of species globally, is being reduced. Perhaps more important for ecosystem function, diversity levels on local to regional scales have fallen due to land use change, biotic invasion and many other drivers. While much is known about how each of these factors affects ecosystem functioning, many questions remain. There is also little data on how these issues affe
Data from: Plant species richness promotes soil carbon and nitrogen stocks in grasslands without legumes
1. The storage of carbon (C) and nitrogen (N) in soil are important ecosystem functions. Grassland biodiversity experiments have shown a positive effect of plant diversity on soil C and N storage. However, these experiments all included legumes, which constitute an important N input through N2-fixation. Indeed, the results of these experiments suggest that N2-fixation by legumes is a major driver of soil C and N storage. 2. We studied whether plant diversity affects soil C and N storage in the absence of legumes. In an 11-years grassland biodiversity experiment without legumes, we measured soil C and N stocks. We further determined above-ground biomass productivity, standing root biomass, soil organic matter decomposition and N mineralization rates to understand the mechanisms underlying the change in soil C and N stocks in relation to plant diversity and their feedbacks to plant productivity. 3. We found that soil C and N stocks increased by 18 and 16% in eight-species mixtures compared to the average of monocultures of the same species, respectively. Increased soil C and N stocks were mainly driven by increased C input and N retention, resulting from enhanced plant productivity, which surpassed enhanced C loss from decomposition. Importantly, higher soil C and N stocks were associated with enhanced soil N mineralization rates, which can explain the strengthening of the positive diversity-productivity relationship observed in the last years of the experiment. 4. Synthesis: We demonstrated that also in the absence of legumes plant species richness promotes soil carbon (C) and nitrogen (N) stocks via increased plant productivity. In turn, enhanced soil C and N stocks showed a positive feedback to plant productivity via enhanced N mineralization, which could further accelerate soil C and N storage in the long term.
Data for "Misestimation of forest soil carbon and nitrogen stocks due to rock fragments: A case study of large number samples in a boreal forest watershed ecosystem of northeast China"
<p>Here are the data for "<span>Misestimation of forest soil carbon and nitrogen stocks due to rock fragments: A case study of large number samples in a boreal forest watershed ecosystem of northeast China</span>", using the format of"excel".</p>
Local temperature increases reduce soil microbial residues and carbon stocks
<p class="MsoNormal"><span>Warming is known to reduce soil carbon (C) stocks by promoting microbial respiration, which is associated with the decomposition of microbial residue C (MRC). However, the relative contribution of MRC </span><span><span>t</span></span><span>o soil organic C (SOC) across temperature gradients is poorly understood.</span><span><span> </span></span><span><span>Here, we </span></span><span>investigated the contribution of MRC to SOC along two independent elevation gradient</span><span><span>s</span></span><span> of our model system (i.e., the Tibetan Plateau</span><span><span> </span></span><span>and Shennongjia Mountain in China). </span><span>Our results showed that local temperature increases were negatively correlated with </span><span>MRC</span><span><span> </span></span><span>and</span><span><span> </span></span><span>SOC.</span><span><span> </span></span><span>Further analyses revealed that rising temperature reduced SOC via decreasing </span><span>MRC</span><span>,</span><span> which helps to explain future reductions in SOC under climate warming. Our findings</span><span> demonstrate that climate warming has the potential to </span><span><span>reduce C sequestration</span></span><span> </span><span><span>by </span></span><span>increas</span><span><span>ing</span></span><span> the decomposition</span><span> of MRC</span><span>, exacerbating the positive feedback between rising temperature and CO<sub>2</sub></span><span> efflux. Our study also considered the influence of multiple environmental factors such as soil pH and moisture, which were more important in controlling SOC than microbial traits such as microbial life-style strategies and metabolic efficiency. Together, our work suggests an important mechanism underlying long-term soil C sequestration, which has important implications for the microbial-mediated C process in the face of global climate change.</span></p>
Tree species richness and soil organic carbon stock
<p class="MsoNormal"><span>Recently, the perspectives for the stronger persistence of soil organic carbon (SOC) caused by the higher molecular diversity of organic compounds were proposed. Therefore, the effects of tree species richness and composition on the diversity of molecular components of SOC need to be explored. In this study, we collected data on tree species diversity and composition, SOC concentration, chemical composition, litter and fine root properties, and examined the relationships between the richness, composition and functional diversity of tree species, and the evenness of SOC chemical compositions at a molecular level by <sup>13</sup>C nuclear magnetic resonance, across six natural forest types encompassing a diversity gradient, ranging from cold temperate to tropical forests. Across the range, tree species richness correlated to the evenness of SOC chemical components through tree species composition. The negative correlation of evenness of SOC chemical components with tree species composition and the positive correlation of evenness of SOC chemical components with tree functional diversity were found. The positive correlation of the evenness of SOC chemical components with indicator tree species. These findings suggest that the indicator tree species conservation might be preferable to simply increasing tree species richness, for enhancing the potential resistance of SOC to decomposition.</span></p>
Supplemental data for "Uncertainty in Land Use Obscures Global Soil Organic Carbon Stock Estimates"
<p>These are supporting data for the manuscript: "Uncertainty in Land Use Obscures Global Soil Organic Carbon Stock Estimates." They include data for the figures showing the spatial dynamics of cropland and LULCC-induced SOC loss etc, including Fig.3, Fig.6, Fig.9, and Fig.10.</p>
Data of soil and tree biomass carbon stocks in the afforestation of Mariblanca
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Tree species richness and soil organic carbon stock
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Local temperature increases reduce soil microbial residues and carbon stocks
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Data from: Plant species richness promotes soil carbon and nitrogen stocks in grasslands without legumes
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Data from: Simple measures of climate, soil properties and plant traits predict national scale grassland soil carbon stocks
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Data from: Impacts of long-term tillage and fertilization on soil carbon stock and aggregate stability in tropical agriculture
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Lower soil carbon stocks in exotic vs. native grasslands are driven by carbonate losses
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Allen Brain Atlas
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DANDI Archive for NWB datasets
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International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.