JIA Shu-hai, ZHANG Qi, MENG Wei-jun, et al. Spatial Variability of Soil Nutrients Based on GIS and Geostatistics -A Case Study of 6 Townships in Lingyuan City,Liaoning Province[J]. Bulletin of Soiland Water Conservation, 2009, 28(3): 197-201.
JIA Shu-hai, ZHANG Qi, MENG Wei-jun, et al. Spatial Variability of Soil Nutrients Based on GIS and Geostatistics -A Case Study of 6 Townships in Lingyuan City,Liaoning Province[J]. Bulletin of Soiland Water Conservation, 2009, 28(3): 197-201.DOI:
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.