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نمایش تعداد 1-10 از 33
Effect of slope aspects on variation of soil organic carbon in a loess hillslope of Toshan area, Golestan Province,Iran
Soil organic carbon (SOC) is one of the most important carbon stocks and has large potential to affect global climate. Management of soils to increase SOC levels can therefore increase the productivity and sustainability of agricultural systems...
Effects of drying and rewetting on dissolved organic carbon (DOC) of two alfisols in the north of Iran
Drying and rewetting cycles affect many different soil characteristics. Dissolved organic carbon is a very important soil property, which can be affected by drying and rewetting cycles. In the present study, the effect of one to five drying...
Latest Permian carbonate carbon isotope variability traces heterogeneous organic carbon accumulation and authigenic carbonate formation
facilitated a spatial increase in heterogeneous organic carbon accumulation. Combined with low marine sulfate, this resulted in varying degrees of carbon isotope overprinting. A simulated time series suggests that a 50 % increase in the spatial scatter...
Tillage and N application effects on crop yield, N uptake and soil properties in a corn-based rotation
The objective of this study was to determine the influence of tillage methods (conventional tillage (CT) and minimum tillage (MT)) and N rates (0, 50, 150, 250 kg N ha−1) on crop yield, N uptake and soil organic carbon (SOC), bulk density (BD...
Long term effects of deforestation on soil attributes: case study, Northern Iran
in significant decreases in organic carbon, available potassium and pH. Reduction of annual organic matter input to soil as a result of deforestation and also rapid oxidation of organic matter in deforested places were responsible for a significant decrease in OC...
Evaluation of soil net primary production and the potential for carbon sequestration for corn in different management systems
application (5.0 g C m-2.yr-1) and in low input system with compost application (2.7 g C m-2.yr-1). The highest soil organic carbon and organic matter contents were observed in low input based on cow manure application (2.0 and 3.4 percent, respectively...