小尺度草地土壤植被空间变异性研究  

Spatial Variability of Soil and Vegetation on a Little Scale in Desert Grassland

作　　者：徐冰[1,2] 陈亚新[1] 郭克贞[2] 

机构地区：[1]内蒙古农业大学水资源与水工程研究所,呼和浩特010018 [2]水利部牧区水利科学研究所,呼和浩特010010

出　　处：《水土保持研究》2007年第6期173-175,180,共4页Research of Soil and Water Conservation

基　　金：教育部博士点学科专项科研基金(20050129006);国家高技术研究发展“863”计划(2002AA2Z4271-6)

摘　　要：以内蒙古鄂尔多斯荒漠草地小尺度（20m×20 m）土壤水分、EC、全氮含量及地上植被干物质量为研究对象,运用地质统计学方法,从统计特征、合理采样数、变异函数等方面分析了土壤特性与植被的空间变异性,认为其均呈现近似正态分布并具有中等强度的空间自相关性。成果初步揭示了该区域土壤、植被的空间结构变化,对干干旱草地水土保持与荒漠化治理具有指导意义。The authors studied the spatial variability of the water, EC and nitrogen in soil and the dry substance of vegetation in a little scale in Erdos desert grassland. Based on the analysis of statistic, logical hits and variogram, analyzed the variability of soil and vegetation. It is considered that the distribution of them are all approximate normal school, and they all have medium spatial self-relativity. The elementary conclusions discovered spatial structure of soil and vegetation in this region, it is important for water and soil conservation and fathering desert in droughty grassland.

关 键 词：小尺度 草地 土壤 植被 空间变异 

分 类 号：S714.5[农业科学—林学]