Soil organic carbon and nutrients along an alpine grassland transect across Northern Tibet
نویسندگان
چکیده
منابع مشابه
Comparison of Soil Microbial Biomass and Enzyme Activities among Three Alpine Grassland Types in Northern Tibet
Soil microbial biomass and enzyme activities have an important influence on nutrient cycling. The temporal variation in soil microbial biomass C, N, and enzyme activities during the growing season were determined under three different alpine grasslands in Northern Tibet. The results showed that soil microbial biomass C, and N contents and enzyme activities of the alpine meadow (AM) and the alpi...
متن کاملFreezing–thawing cycles effect on the water soluble organic carbon, nitrogen and microbial biomass of alpine grassland soil in Northern Tibet
Soil freezing-thawing cycle may substantially influence soil physical properties, microbial activity, and the rates of carbon and nitrogen cycling in soils. In this study, the soil water soluble organic C, N (WSOC, WSON) as well as microbial biomass C, N (MBC, MBN) of two alpine grassland types, alpine meadow and alpine steppe, were investigated after freezing-thawing cycles in a grassland land...
متن کاملShort-term grazing exclusion has no impact on soil properties and nutrients of degraded alpine grassland in Tibet, China
Since the 1980s, alpine grasslands have been seriously degraded on the Tibetan Plateau. Grazing exclusion by fencing has been widely adopted to restore degraded grasslands. To clarify the effect of grazing exclusion on soil quality, we investigated soil properties and nutrients by comparing free-grazing (FG) and grazing exclusion (GE) grasslands in Tibet. Soil properties – including soil bulk d...
متن کاملArtificial root exudates and soil organic carbon mineralization in a degraded sandy grassland in northern China
Plant root exudates contain various organic and inorganic components that include glucose, citric and oxalic acid. These components affect rhizosphere microbial and microfaunal activities, but the mechanisms are not fully known. Studies concerned from degraded grassland ecosystems with low soil carbon (C) contents are rare, in spite of the global distribution of grasslands in need of restoratio...
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ژورنال
عنوان ژورنال: Journal of Mountain Science
سال: 2013
ISSN: 1672-6316,1993-0321
DOI: 10.1007/s11629-012-2431-5