山东省文登市耕层土壤有机质的空间分异特征研究  

STUDY ON SPATIAL VARIATION CHARACTERISTIC OF TILLED TOPSOIL ORGANIC MATTER OF WENDENG CITY SHANDONG

作　　者：林秀渠 刘晓龙[2] 李玉环[2] 

机构地区：[1]文登市农业局,文登264400 [2]山东农业大学资环学院,山东泰安271018

出　　处：《山东农业大学学报（自然科学版）》2012年第3期457-461,共5页Journal of Shandong Agricultural University：Natural Science Edition

基　　金：山东省自然基金(Y2008H03);山东省科技公关计划(2009GG10006006)

摘　　要：本文在Arcgis地理信息系统平台上,利用地统计学分析模块中的克立格法,基于野外采集的土壤样本GPS数据和土壤有机质含量的测定值,针对文登市农田生态系统耕层土壤有机质进行了空间分异性特征分析,并对比评价了各种克立格插值模型。结果表明:文登市耕层土壤有机质的空间变异性较为显著;有机质含量的空间变异结构最佳拟合模型是Tetraspherical模型;C0/sill值为0.86,耕层土壤有机质空间相关性很弱,主要是人类活动影响的结果;耕层有机质含量处在较低水平,应改善耕作管理方式。Basing on field sampling and analysis on soil samples, this paper determines soil organic matter alue of. With Arcgis platform, it analyzed Wendeng spatial characteristics of topsoil soil organic matter using kriging of statistical analysis module, and choosed the optimal contrast kriging interpolation model. The results showed that topsoil organic matter had large spatial variability in Wendeng and the best theoretical model is Tetraspheri- cal model fitting organic matter content. It also made sure that the C0/sill lvas 0.86. The spatial correlation was very weak of topsoil organic matter which was mainly caused by the human activities. The should be improved because of the low organic matter content in the topsoil. farming management

关 键 词：土壤有机质 地统计学 克立格插值 插值模型 空间特征 

分 类 号：S1[农业科学—农业基础科学] P9[天文地球—自然地理学]