摘要
应用地统计学方法研究了中国土壤表层钙元素背景值的空间变异结构,并藉此进行了钙元素背景值的地域估值.结果表明,这种估值方法突出反映了钙元素在中国的宏观变化规律.与趋势面方法相比,具有明显优势.
A spatial variability structure of the environmental background values for element calcium of the topsoil in China was analysed. Based on this, the localized optimal estimation of the environmental background values for element calcium was made. The results showed that this estimation method highlighted a macroscopic variability regularity of the environmental background value for element calcium of topsoil in China. Compared with trend surface analysis method, it has obvious advantages.
出处
《环境科学学报》
CAS
CSSCI
CSCD
北大核心
1992年第2期168-173,共6页
Acta Scientiae Circumstantiae
关键词
钙
背景值
土壤表层
environmental background value, calcium, semi-variogram, kriging estimation, topsoil.
