Spatial Variability of Soil Nutrients Based on GIS and Geostatistics -A Case Study of 6 Townships in Lingyuan City,Liaoning Province
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    Abstract:

    This paper introduces a case study of 6 townships in Lingyuan City,Liaoning Province.1042 surface soil samples were collect ed with the aid of GPS positioning.Traditional statistics combined with geostatistics was applied to analyze the spat ial variation of soil nutrients.Results show ed that the variation coefficients of four kinds of soil nutrients ranged from 29.45%to 67.25%.Soil nutrients,interms of the spatial heterogeneity,was in the descendant order of AP,AN,OM,and AK.AN,A K,and OM had m oderate spatial dependence.However,the C0/(C0+ C)for AP was 100%,so the relevance of space was weak.Soil nutrients,in terms of the fractal dimension,was in the descendant order of AP,AN,AK,and OM.Analysis by Krig ing method indicated that spatial pattern of soil nutrients in the study area was mainly affected by landuse type.

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贾树海,张琦,孟维军,白静,王会,王慧强.基于GIS与地统计学土壤养分空间变异特征研究——以辽宁省凌源市6乡镇为例[J].水土保持通报英文版,2009,(3):197-201

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History
  • Received:September 18,2008
  • Revised:November 06,2008
  • Adopted:
  • Online: November 26,2014
  • Published: