国内外土壤环境背景值图件编制研究现状趋势  

Research of Making Maps of Soil Environment Background Value——Present Situation and Further Trend Home and Abroad

作　　者：郑春江[1] 张东威[1] 张燕 屠礼廉 王春艺[1] 

机构地区：[1]中国环境监测总站

出　　处：《环境科学研究》1989年第2期48-53,共6页Research of Environmental Sciences

摘　　要：环境背景值调查起源于以矿产勘探为目的的地球化学研究,国内外矿产勘探工作者制做了大量地球化学图或图集。后来又从为农林牧业生产服务的角度出发制做土壤元素背景图。近十年来,我国科学工作者又从环境保护角度出发制做环境背景值图。概括地讲:在土壤环境背景值图编制中,无论采用定点几何符号法、分级统计图法,以及计算机绘制趋势面图或计算机与人工相结合(机助制图)绘制等含量线图等方法,其制图发展趋势如下:制图范围由小到大;制图元素由少到多;制图方法由常规制图向机助制图方向发展;图面表示方法由简单到复杂。The investigation of environment background value origins from geochemical research aimed at exploring ores, in which geological researchers have made a lot of geochemical graphs and graph atlas. Another goal of mapping soil environment background value is serving the needs of agriculture, forestr y and livestock farming Also, in the last decade, our scientists have done some work from the aspect of environmental protection. Generally speaking, the developing trend of mapping soil environment background value, whether it is in the method of geometric symbal, showing fixed sites, or in the method of degrable statistics, or in drawing trend flat by computer, or drawing curve of element content aided by computer, in that (1) Scope of mapping goes foward Rmall. (2) Factors goes foward accretion. (3) Methods of mapping goes more and more to aided by computer.(4) Expression of the graphs goes complex.

关 键 词：土壤环境 背景值图 

分 类 号：X131[环境科学与工程—环境科学]