Results 21 to 30 of about 3,483,745 (281)
The organic carbon content of soils is a key parameter of soil fertility. Moreover, carbon accumulation in soils may mitigate the increase in atmospheric CO2 concentration. The principles of carbon accumulation in arable soils are well known.
Jörg Gerke
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Organic carbon transport and C/N ratio variations in a large tropical river: Godavari as a case study, India [PDF]
This study gives an insight into the source of organic carbon and nitrogen in the Godavari river and its tributaries, the yield of organic carbon from the catchment, seasonal variability in their concentration and the ultimate flux of organic and ...
Probst, Jean-Luc, Balakrishna, Keshava
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The response of resistant soil organic matter to temperature change is crucial for predicting climate change impacts on C cycling in terrestrial ecosystems. However, the response of the decomposition of different soil organic carbon (SOC) fractions to temperature is still under debate. To investigate whether the labile and resistant SOC components have
Jie Tang, Hao Cheng, Changming Fang
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Sources of nitrogen for winter wheat in organic cropping systems [PDF]
In organic cropping systems, legumes, cover crops, residue incorporation, and manure application are used to maintain soil fertility, but the contributions of these management practices to soil nitrogen (N) supply remain obscure.
Christensen, B.T. +9 more
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[Objective] The aims of this study are to examine the impact of conversion of farmland to grassland in the region of the Loess Plateau on labile organic carbon(high, moderate, and low level)in soil aggregates, clarify the regulatory factors for soil ...
LI Yingxue +4 more
doaj
Carbon Stocks, Sequestration Rate and Efficiency over 50 Years of Increasing Mineral N Fertilization
Microbially mediated soil organic matter is an extremely sensitive pool that indicates subtle changes in the quality parameters. The calculation of different carbon pools (organic carbon—OC, labile carbon—PMC, light carbon—LFC and microbial carbon—MBC ...
Elmira Saljnikov +6 more
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Utilization of ancient permafrost carbon in headwaters of Arctic fluvial networks [PDF]
Northern high-latitude rivers are major conduits of carbon from land to coastal seas and the Arctic Ocean. Arctic warming is promoting terrestrial permafrost thaw and shifting hydrologic flowpaths, leading to fluvial mobilization of ancient carbon stores.
Zimov, Nikita +26 more
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Purpose: Deforestation is one of the ecosystem disservices associated with accelerated loss of soil organic carbon (SOC) and nitrogen (TN). The objective of our study was to evaluate the impact of deforestation on the partition of SOC pools, TN content, and the SOC lability when compared with the well-stocked Red Pine (Pinus brutia Ten.) and Oak ...
Somayyeh Razzaghi +2 more
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Controls on the composition and lability of dissolved organic matter in Siberia's Kolyma River basin [PDF]
High-latitude northern rivers export globally significant quantities of dissolved organic carbon (DOC) to the Arctic Ocean. Climate change, and its associated impacts on hydrology and potential mobilization of ancient organic matter from permafrost, is ...
Zimov, Nikita +7 more
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Refractory and labile organic carbon in coral reef seawater
Coral reef seawater samples from Bora Bay off Miyako Island in Okinawa, Japan were incubated with an initial volume of 20 liters. The degradation of organic carbon in this seawater was monitored for more than three months in dark, unstirred polycarbonate vessels by measuring the concentration of organic carbon in the seawater.
Ikeda, Yutaka +3 more
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