土壤因子对宁夏枸杞地理分布的影响  

Effect of Soil Factors on Geographical Distribution of Lycium barbarum L.

作　　者：张磊[1] 郑国琦[1] 滕迎凤[1] 王俊[1] 

机构地区：[1]宁夏大学生命科学学院,宁夏银川750021

出　　处：《北方园艺》2012年第11期187-190,共4页Northern Horticulture

基　　金：国家科技支撑计划资助项目(2009BAI72B00-2)

摘　　要：运用SPSS 18.0软件的因子分析功能,对收集到的影响宁夏枸杞分布的有机质、全量氮、全量磷、全量钾、速效氮、速效磷、速效钾、pH、全盐等土壤环境因素进行了分析,以期探讨影响宁夏枸杞地理分布的土壤主导因子。结果表明:肥力因子、土壤有机质因子和全盐3个公因子累积贡献率达78.44%,可信度高;同时得出肥力因子是影响宁夏枸杞地理分布的生态主导因子,因子总得分高的地区宁夏枸杞生长分布的适宜性强。The collected soil factors that effected the distribution of Lycium barbarum L.,such as（organic matter,total amount of nitrogen,the whole amount of phosphorus,total amount of potassium,available nitrogen,available phosphorus,potassium,pH,total salt） were analyzed by using the factors analysis function of SPSS 18.0.The results showed that three common factors whose contribute rate reached 78.44%,while got the linear equations of score of those three factors,the fertility factor was the ecological dominant factor influencing on geographical distribution of Lycium barbarum L.,the region with high factor total score was more appropriate for the growth and distribution of Lycium barbarum L.

关 键 词：宁夏枸杞 因子分析 土壤环境因素 生态主导因子 

分 类 号：S155.46[农业科学—土壤学]