向海洪泛湿地土壤全氮、全磷和有机质含量及相关性分析

对霍林河流域向海国家级自然保护区内天然洪泛湿地在距主河道不同距离处分层采集土壤样品,对其全氮、全磷和有机质含量的空间变化规律进行分析探讨.结果显示,全氮、全磷和有机质的含量在空间上的变化趋势为随距离河道距离的增加和采样土层深度的增加而降低,表明洪泛作用对洪泛湿地土壤中全氮、全磷和有机质含量的影响随着距离河道距离的增加和土层深度的增加而降低.对全氮、全磷和有机质含量的相关性进行了分析,结果显示相互间的相关性在距主河道一定距离范围内非常显著. 

Content of Total N,Total P and Organic Matters and Their Correlation inSoils of Xianghai Floodplain Wetland

Soil sediment samples of different layers were collected in different floodplain wetland zones from the Huolin River basin in the Xianghai Natural Reserve,and total N,total P and organic matters were analyzed.The results show that content of total N,total P and organic matters were generally decreased with distance increase from sample location to the river channel,and content of the three items were generally higher in the upper soil layer than that in the lower soil layer.The content variation displayed how flooding functions influenced nutrient matters content variation in soils of floodplain wetland since the sample locations were under different flood inundation frequency.The correlation analysis displayed that there were remarkable correlation between total N,total P and organic matters within some distance from main channel of the Huolin River.