Author
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KONG, XIANGBIN - China Agricultural University |
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Dao, Thanh |
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QIN, JING - China Agricultural University |
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QIN, HAIYI - China Agricultural University |
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Submitted to: Geoderma
Publication Type: Peer Reviewed Journal Publication Acceptance Date: 9/30/2009 Publication Date: 10/24/2009 Citation: Kong, X., Dao, T.H., Qin, J., Qin, H. 2009. Effects of soil texture and land use interactions on organic carbon in soils in North China cities' urban fringe. Geoderma. 154(1-2):86-92.
Interpretive Summary: Soil organic matter is the soil nutrient pool and changes of the quantity of SOM often reflect changes in soil fertility. Soil OM stabilizes soil pH, which plays a vital role in controlling the supply of nutrients and their availability for plant uptake. Levels of accumulation of SOM depend essentially on tillage methods and residue management practices. Land use change and changes in soil management practices often occur together and have profound influences on the soil physical, chemical, and biological environment. Limited information exists on the joint effects of soil texture and land use on carbon (C) storage efficiency. Organic C in soils at the rural-urban interface was determined in benchmark soil texture classes in the North China Plain’s Daxing district in 1982, 2000, and 2006. The results suggested that soil texture played a key role in attaining elevated SOC concentrations in different land use types and management intensity. The order of increasing SOC concentrations across land use types was fine sand
Technical Abstract: Limited information exists on the effects of the linkages between soil texture and land use on C storage efficiency. Organic C concentration in soils at the rural-urban interface were measured in 1982, 2000, and 2006 to determine controlling factors and optimal land use type to enhance soil organic C (SOC) storage in benchmark soil textural classes in the North China Plain’s Daxing district. The results suggested that soil texture was the key to attaining elevated SOC concentrations in different land use types and management intensity. From 1982 to 2006, the order of increasing SOC concentrations across land use types was fine sand |
