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Variation of Soil Rapid Available Nitrogen Components and Its Implication in Napahai Lake-Marsh Region,Northwest Yunnan Province
详细信息   
摘要

Contents of Rapid Available N (RAN), Dissolved Organic N (DON), Ammonium N and Nitrate N at 3 layers (1st 0~10 cm, 2nd 10~20 cm, 3rd 20~30 cm) were analyzed for the 4 soil types:Abandoned Farmland Mesophytic Meadow Soil (AFMMS), Mesophytic Meadow Soil(MMS), Wet Meadow Soil (WMS), and Marsh Soil (MS) in Napahai reserve, Northwest Yunnan Province, China.  The study indicated variations of soil water and vegetation significantly drove the variation of soil RAN and its components.  Total contents of 3 components only accounted for few percentages of RAN, meaning still large part of hydrolysable soil organic N needs to be studied. 

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