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《Geology of Anhui》 2004-02
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STUDY OF PHYSICOCHEMICAL NATURE AND LOWER-NUTRIENT MECHANISM OF MOISTNESS SOIL DISTRIBUTING ALONG THE HUAI-RIVER IN ANHUI PROVINCE

SONG Xiao-mei~1 GUI He-rong~(1,2) CHEN Zhao-yan~1(1.University of Science & Technology of Anhui,Huainan 232001,China;2.Huainan Vocational & Technical College,Huainan 232001,China)  
We synthesized many test data and analyzed the nutrient features of the topsoil of the moist soil distributing along the Huai River in Anhui Province.Based on the description and test of typical section of four types of the moist soil,we also studied the physicochemical nature of the soil,which shows better performance to let air in,alkalinity,lower nutrient which decreases with depth,and synchronous change of organic matter and full nitrogen.On the basis of the principle of nitrogen circulation in soil,we analyzed the essence of lower nitrogen content in the soil,i.e.insufficient supply of organic matter and carbon source, anti-nitrification promoted by the higher ground-water table and the soil inundated by flood,and the influence of planting structure.The capacity of absorbed ammonium by the soil is obtained through the test of absorbed ammonium by the soil in its original state.Thus,the mechanism of the lower nutrient of the moist soil distributing along the Huai-River is revealed,which can be used for reference for soil improvement in this locality and other district with similar conditions to this locality.
【CateGory Index】: P642.11
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