作　　者： (彭桂群）; (刘星剑）; (敖子强）;

机构地区： 江西省科学院,南昌330029

出　　处： 《中国资源综合利用》 2017年第7期131-134,138,共5页

摘　　要： 本文通过研究鄱阳湖南矶山湿地土壤在不同植被类型和不同土壤深度下总有机质、总氮、总磷、总钾的含量变化,分析了鄱阳湖南矶山湿地土壤养分的空间分布特征。结果表明荻,湿地土壤总有机碳和总氮含量极显著正相关,总有机碳和总磷含量、总氮与总磷含量之间则无相关性。这表明南矶山湿地土壤氮主要以有机质的结合形态存在,笔者推测土壤中磷以无机磷结合形态存在,则鄱阳湖轻度的富营养化现象可能由湿地土壤中无机磷淋溶所致。 In different vegetation types and soil depth,this paper studied the contents changes of total organic carbon（TOC）, total nitrogen（TN）, total phosphorus（TP） and total kalium（TK） in soil of Nanjishan（Poyang Lake） wetland, analysising the Nanjishan Wetland soil nutrient spatial distribution characteristics. The results showed that the total organic carbon and total nitrogen content of wetland soil were significantly and positively correlated, but there was no correlation between total organic carbon and total phosphorus content, total nitrogen and total phosphorus content. This shows that the soil nitrogen mainly in the Nanjishan Wetland organic matter form, the authors suggested that soil phosphorus exists in inorganic phosphorus speciation, Poyang Lake mild eutrophication phenomenon may be caused by the inorganic phosphorus in the wetland soil leaching.

关 键 词： 鄱阳湖 南矶山湿地 土壤养分 空间分布