广东省土壤锌背景值空间变异分析  

Spatial Variation and Vertical Distribution of Zn Environmental Backgroud Values in the Soil of Guangdong Province

作　　者：刘志军[1] 方元[2] 

机构地区：[1]中国科学院广州地球化学研究所,广州510640 [2]黄冈师范学院数学计算机学院,湖北黄冈438000

出　　处：《湖北农业科学》2013年第1期65-67,共3页Hubei Agricultural Sciences

基　　金：国家自然科学基金项目(40534019)

摘　　要：在GIS支持下,结合地统计学软件Surfer对广东省261个土壤剖面的锌环境背景值进行空间变异分析,结果表明,锌的分布异质性较强,淋溶层、淀积层、母质层3层都显示出中等的空间相关性,空间变异模式趋于一致;背景浓度高的土壤样品通常位于断裂带、盆地和三角洲地区,并与区域盆地的空间分布对应;锌背景值从淋溶层到母质层呈明显的增长趋势。Based on GIS with Geo-statistics analyst software(Surfer 8.0),a total of 261 soil profiles were used to investigate the vertical variation and spatial distribution of Zn environmental backgroud values in Guangdong province.The distribution of Zn was heterogeneous.The spatial distribution of Zn presented similar patterns that the relatively high concentrations of Zn mainly located in fault,basin and delta areas,indicating that distribution of Zn in the soil was according with regional basin.Moreover,mean concentration of Zn had an increasing tendency from leached to mother material horizon.

关 键 词：土壤锌 空间变异 克里格插值 广东省 

分 类 号：S[农业科学]