EXTRACTION OF NITROGEN-CONTAINING ORGANIC MATTER FRACTIONS FROM A BROWN FOREST SOIL
نویسندگان
چکیده
منابع مشابه
Ryegrass - derived pyrogenic organic matter changes organic carbon and nitrogen mineralization in a temperate forest soil
Pyrogenic organic matter (PyOM) is considered as a technique to improve soil fertility and store carbon (C) in soil. However, little is known regarding soil organic C and nitrogen (N) mineralization in PyOM-amended soils. To investigate the relationship between the C and N mineralization rates and the possible consequences in terms of C storage and N availability, we incubated ryegrass-derived ...
متن کاملLittle effects on soil organic matter chemistry of density fractions after seven years of forest soil warming
Rising temperatures enhance microbial decomposition of soil organic matter (SOM) and thereby increase the soil CO2 efflux. Elevated decomposition rates might differently affect distinct SOM pools, depending on their stability and accessibility. Soil fractions derived from density fractionation have been suggested to represent SOM pools with different turnover times and stability against microbi...
متن کاملShort-term Effects of Forest Soil Compaction and Site Organic Matter Removal on Mineralizable Soil Nitrogen in Central British Columbia
Mineralizable nitrogen (min-N) often correlates well with plant-available nitrogen (N) in soils, and might serve as a useful indicator of whether soils are detrimentally affected by timber harvesting practices. We examined how min-N responded to soil compaction and site organic matter removal after 1 and 5 years on three sites in central British Columbia. Mineral soil min-N was found to change ...
متن کاملconsequence of land use change from forest to vineyard on soil organic c fractions
the aim of this study was to assess the conversion of forest to vineyard on different physical pools of organic matter in zrebar lake watershed. soil samples were collected from the two major land use types including forest and vineyard land at 0-30; 30-60, and 60-90-cm depths. in each land use, different soc fractions were measured. according to the results of size fractionation of organic car...
متن کاملNitrogen addition changes grassland soil organic matter decomposition
Humans have dramatically increased the deposition and availability of nutrients, such as nitrogen (N), worldwide. Soil organic matter (SOM) is a significant global reservoir of carbon (C); however, the effects of N enrichment on this large, heterogeneous C stock are unclear. Nitrogen has variable effects on the biological, chemical, and physical factors that determine SOM pool mean residence ti...
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ژورنال
عنوان ژورنال: Canadian Journal of Soil Science
سال: 1970
ISSN: 0008-4271,1918-1841
DOI: 10.4141/cjss70-031