Farmland nitrogen loss and its control strategies from the view of water environment

Abstract

Abstract: Nitrogen is a major factor in maintaining crop yield and getting better economic return,but its over and unreasonable use may cause severe environmental pollution.From the view of water environment,this paper discussed the current effects of farmland nitrogen (N) loss on water pollution,the passes and mechanisms of farmland nitrogen loss,and its control strategies.To reduce the N surface runoff and leaching,effective measures should be taken,which include cutting down the paths from the source to transportation,and taking integrated measures to control N pollution.The BMPs (Best Management Practices) methods for N control suitable to China's situation were discussed on the basis of nitrogen source pollution rate.

Key words: Nitrogen loss, Leaching, Pollution, Runoff, BMP practices

CLC Number:

S143.1
X52

JIN Jie, YANG Jingping . Farmland nitrogen loss and its control strategies from the view of water environment[J]. Chinese Journal of Applied Ecology, 2005, 16(3): 579-582.

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