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黄河口不同生境下翅碱蓬湿地土壤碳、氮储量与垂直分布特征
Authors
刘兴土
孙志高
牟晓杰
Publication date
1 January 2012
Publisher
Abstract
选择位于黄河口滨岸中潮滩和低潮滩上的翅碱蓬湿地为研究对象,对比研究了湿地土壤碳、氮在不同时期的垂直分布特征。结果表明,两种湿地土壤的TC、TN、NO3--N、NH4+-N和C/N在不同时期的垂直分布特征均存在不同程度差异,TC、TN的垂直分布特征主要受制于土壤有机质的分布和潮汐影响状况,NO3--N、NH4+-N主要与不同时期土壤水分条件差异及其引起的不同土层硝态氮的垂直淋失和对铵态氮的吸附程度有关,C/N的差异主要与其受陆源影响程度有关;两种湿地土壤TC、TN、NO3--N、NH4+-N和C/N在不同时期均存在较高的垂直变异性,原因主要与上下层土壤影响碳、氮分布的主导因素差异有关;两种湿地土..
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Last time updated on 24/06/2021