摘要
对研究区的部分土壤理化性质及土壤重金属的空间变异特性进行了分析,均表现出一定的空间变异性,并通过克里格插值得到它们的空间分布格局,表现出了一定的相似性,说明土壤理化性质与土壤重金属在空间分布上存在一定的相关性;通过对它们之间的空间相关性分析,表明克里格插值结果与实际计算结果是一致的,结果表明,土壤有机质、pH及各粒级含量土壤与Cu,Hg,As含量的相关性显著,与Zn,Pb和Cr为中等相关,且均为正相关,而与Cd的相关性不显著.在实际生产中,可以通过土壤部分理化性质来估计土壤重金属的分布特征.
This paper analyzes the spatial variation characteristics of soil physico-chemical properties and soil heavy metals of the study area. Both showed a certain spatial variation. Their spatial distribution, which was obtained by Kriging interpolation, showed some similarities. All these results manifested that soil physico-chemical properties were related to soil heavy metals in their spatial distribution. Analysis of their spatial correlations showed that the results of Kriging interpolation were consistent with the results of computing. Soil org cantly with the cont correlated with Cd. als can be estimated anic matter, content of various classes of soil granules and pH were correlated signifi- ent of Cu, Hg and As, moderately with the contents of Zn, Pb and Cr, but were not Therefore, in practical production, the characteristics of distribution of soil heavy metwith some of the soil physico-chemical properties.
出处
《西南师范大学学报（自然科学版）》
CAS
CSCD
北大核心
2007年第4期58-63,共6页
Journal of Southwest China Normal University(Natural Science Edition)
关键词
空间变异
克里格插值
空间相关性
spatial variation
Kriging interpolation
spatial correlations
