中文摘要：

以丹江口水库青塘河小流域入库河口37.8 hm2面积的土地为研究对象,利用SPSS 19、Arc GIS10.0及GS＋9.0软件研究该区域8种土壤养分的具体空间变异与分布。结果表明,有机质、全磷、全钾、全氮超过95%面积的土壤处于中等及以下水平;从速效养分来看,碱解氮含量较低,速效磷和速效钾含量相对较高,基本处于中等及以上水平;对土壤养分综合指标分析结果显示,贫瘠土壤占整个研究区域面积的70%以上。通过对土壤养分综合状况分析,为库区植被恢复关键技术的研究提供了数据支撑。

英文摘要：

The estuary of Qingtanghe river watershed of Danjiangkou Reservoir was selected as the research region,whose area is 37.8 hm2. The spatial variability and distribution of the soil nutrients in this area were analyzed by using SPSS19.0,Arc GIS10.0 and GS＋9.0. The results showed that,the contents of organic matter,TP,TK and TN in more than 95% areas were at the middle or lower level. From the available nutrients,available P and available K were higher than alkaline N,all at the middle or higher level. The results of comprehensive index analysis showed that the barren soil accounted for more than 70%of the total area in the research region. Based on the comprehensive analysis of soil nutrients,the data support for the research of the key technologies of the vegetation restoration in the reservoir area was provided.