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[1]ZOU Cheng,XU Fu-li,YAN Ya-dan.Analysis of Soil Nitrogen Leaching Under Different Land Uses Patterns in the Loess Hilly and Gully Region[J].Research of Soil and Water Conservation,2009,16(03):114-116.

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Analysis of Soil Nitrogen Leaching Under Different Land Uses Patterns in the Loess Hilly and Gully Region

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 16 Number of periods: 2009 03 Page number: 114-116 Column: Public date: 2009-06-20

Title:: Analysis of Soil Nitrogen Leaching Under Different Land Uses Patterns in the Loess Hilly and Gully Region

Author(s):: ZOU Cheng^1,2, XU Fu-li¹, YAN Ya-dan^1,2; 1. Research Center of Soil and Water Conservation & Eco-environment, Chinese Academy of Sciences and Education Ministry, Yangling, Shaanxi 712100, China;
2. Graduate School, Chinese Academy of Sciences, Beijing 100049, China

Keywords:: loess hilly and gully region; nitrogen leaching; nitrate nitrogen leaching

CLC:: F301.24;S157

DOI:: -

Abstract:: According to soil profile of nitrate nitrogen, ammonium nitrogen, organic matter and total nitrogen under different land uses patterns,effects of soil nitrogen leaching under different land uses in the loess hilly and gully region were discussed in detail, and proposals were gaven for local agricultural development. The results showed that soil nitrate nitrogen maximum appeared on 200 cm. The maximum is that solar greenhouse’s content is 20.36 mg/kg. Soil ammonium nitrogen content is 10～25 mg/kg. Effect of soil ammonium nitrogen, organic matter and total nitrogen under different land uses in the loess hilly and gully region were not obvious. With the depth of the changes soil ammonium nitrogen haven’t changes. Soil organic matter and total nitrogen’s distribution decreases with the increase in depth, but kept organic matter content at 1.07～5.95 g/kg and kept total nitrogen at 0.12～0.35 g/kg under 60 cm. The results showed that soil nitrogen leaching’s main components is soil nitrate nitrogen, soil nitrate nitrogen leaching and rainfall, irrigation, fertilization amount was positive correlation, soil nitrate nitrogen leaching is less in slope land.

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