| In present, soils elements constituent、distribution of elements and distribute ruleof elements is the result which Quaternary Period geology evolvement process.Different soil elements come into being different spatial pattern because of controllingfor soil geochemical process in earth surface. In general, each pattern is the reflectionof the underlying spatial process at a specific stage of time and it also influences theprocess for the next stage. Spatial pattern will be steady at a specific stage of timeif spatial process is be steady and spatial effect range is wide. Accordingly, thecapability of generalizing and quantifying spatial patterns is a prerequisite tounderstanding the complicated processes governing the distribution of spatialphenomena.In the paper, The heavy metal elements (As、Cd、Cr、Cu、Hg、Ni、Pb、Hg) is beanalyzed use mathematics statiscs method. The soils data of used is very integrate sofar in north china plain. The characteristic of soil heavy metal spatial distributing is bedescribed and analyzed. Soil heavy metal contaminations evaluate on single factorand integrated.For comprehending soil heavy metal spatial patterns penetrability, spatialautocorrelation method is introducted in this paper. Firstly, spatial autocorrelation andspatial patterns is researched in theory. The characteristic and capability of spatialautocorrelation technique on portraying spatial patterns is exhibited by studingdifferent spatial grid pattern which is designed by the paper author. Simultaneity, thelog-lines ralation between spatial pattern and spatial autocorrelation at differentspatial resolution is studied which provide a theory foundation at studing soil heavymetal spatial patterns in North China plain. In this paper, soil heavy metal spatialpatterns in North China plain are studied detailedly basing on spatial autocorrelationtechnique. The network density is counted by spatial autocorrelation technique whichafford important reference in soil investigate and soil monitoring. |
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