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[1]ZHANG Jia-qi,WANG Hong,ZHANG Rui-fang,et al.Study on the Law of Nutrient Loss of Different Land Use Patterns in Sloping Gneiss Area[J].Research of Soil and Water Conservation,2014,21(05):122-125,131.

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Study on the Law of Nutrient Loss of Different Land Use Patterns in Sloping Gneiss Area

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 21 Number of periods: 2014 05 Page number: 122-125,131 Column: Public date: 2014-10-28

Title:: Study on the Law of Nutrient Loss of Different Land Use Patterns in Sloping Gneiss Area

Author(s):: ZHANG Jia-qi¹, WANG Hong^2,3,4, ZHANG Rui-fang^2,3,4, ZHU Zi-long¹, ZHOU Da-mai^2,3,4; 1. College of Resources and Environment Science, Agricultural University of Hebei, Baoding, Hebei 071000, China;
2. Agricultural University of Hebei Mountainous Area Research Institute, Baoding, Hebei 071000, China;
3. National Engineering Research Center for Agricultural in Northern Mountainous Areas, Baoding, Hebei 071000, China;
4. Agricultural Engineering Technology Research Center of Mountain in Hebei Province, Baoding, Hebei 071000, China

Keywords:: gneiss; soil and water loss; runoff; amount of nutrient loss; different land use patterns

CLC:: S157.1;S153

DOI:: -

Abstract:: Indoor rainfall experiment was conducted to evaluate the effects of land use patterns on the surface soil and nutrient loss in gneiss area. Results showed that runoff and sediment yield of millet land, grassland were far less than those of the bared; the rates of runoff and sediment yields were different among different land uses. Meanwhile, the stable runoff time of millet land and grassland lagged in the bare land. The process of nutrient loss was basically same in the three kinds of land use types: at the beginning nutrient concentration was higher, nutrient concentration tends to be stable over time. The nutrient loss is significantly positively correlated to the cumulative runoff and sediment yield. The amounts of nutrient loss under in the three kinds of land use types represented the cumulative loss oder of potassium > nitrogen > phosphorus. In addition, the nutrient loss of bare land was the largest, followed by millet land and grassland, except nitrate nitrogen concentration in the runoff and the phosphorus concentration in the sediment, of which were the largest in millet land, followed in the bare land. Nutrient losses from gneiss area are mainly in the form of sediment combination state especially for phosphorus and potassium, N loss is mainly in dissolved nitrogen or both dissolved nitrogen and sediment-associated nitrogen.

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