Net nitrogen mineralization and nitrification in the tidal marsh soils of the Yellow River Estuary

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Publication date
1 January 2015
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Abstract

采用PVC顶盖埋管原位培育法研究了黄河口典型潮滩湿地土壤净氮矿化与净硝化作用的动态变化特征、影响因素及净氮矿化/硝化量.结果表明,高潮滩湿地(LW)、中潮滩湿地(JP1)和低潮滩湿地(JP2)0~15cm土壤无机氮含量具有明显的季节变化特征,NH4+-N含量表现为LW>JP1>JP2,NO3--N含量则表现为JP1>LW>JP2.3种湿地土壤净氮矿化/硝化速率均呈明显的波动变化.生长季的净氮矿化量分别为27.81、11.90和0.33kg/hm2,净硝化量分别为12.09、15.99和1.19kg/hm2,净硝化量占净氮矿化量的百分比分别为43.47%、100.00%和100.00%.相关分析..

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