黄河三角洲柽柳林场湿地土壤养分的空间异质性及其与植物群落分布的耦合关系  

Spatial Heterogeneity of Soil Nutrients and The Relationship between Soil Nutrients and Plant Community in Tamarix chinensis Forest Farm Wetland of Yellow River Delta Wetland

作　　者：凌敏[1] 刘汝海[1] 王艳[1] 罗先香[1] 周凤琴[2] 

机构地区：[1]中国海洋大学环境科学与工程学院,山东青岛266100 [2]山东中医药大学药学院,山东济南250355

出　　处：《湿地科学》2010年第1期92-97,共6页Wetland Science

基　　金：科技支撑计划项目(2006BAC01A13);海洋公益性项目(20080508006);自然科学基金项目(40572171)资助

摘　　要：于2007年7月,在黄河三角洲柽柳林场湿地,采集了不同植物群落表层土壤,分析了土壤可溶性盐、有机质、全氮和全磷含量等的空间分异及其与湿地植被分布的关系。土壤可溶性盐、有机质、全氮和全磷的含量分别为0.11%～4.31%、0.18%～1.55%、128～1268mg/kg和521～770mg/kg,可溶性盐、有机质、全氮的空间分异显著。随土壤可溶性盐含量的增大植物种类逐渐减少,不同群落下土壤有机质、全氮含量分布规律相似:随着土壤可溶性盐含量的降低、水分条件的改善,土壤有机质及全氮含量升高。土壤可溶性盐含量是该区植被分布的主要限制因素,同时植被的分布改善了土壤的营养状况。The soil samples were collected in Tamarix chinensis Forest Farm Wetland of Yellow River Delta on Ju-ly,2007.The distribution of soil soluble salt,organic matter,total nitrogen（TN）and total phosphorus（TP）and the relationship between vegetation distribution and soil nutrients were studied.The results showed that the content of soil water-soluble salts,organic matter,TN and TP were 0.11%-4.31%,0.18%-1.55%,128-1 268 mg/kg and 521-770 mg/kg,respectively.The spatial variations of soil soluble salt,organic matter,TN were significant.With the increase of soil soluble salt,the number of vegetation species decreased.The content of soil organic matter and TN under different communities had similar distribution characteristics.With the de-crease of soil soluble salt and the increase of inundation,the content of organic matter and TN increased.The contents of TP did not show significant difference.The water-soluble salts content was the main factor affecting the spatial distribution of vegetation in this area and the distribution of vegetation could improve the nutrient con-tent of the soil.

关 键 词：黄河三角洲柽柳林场湿地 土壤养分 空间异质性 群落差异 

分 类 号：Q958[生物学—动物学]