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本文以区域性土壤镉含量的调查和污灌区土壤镉污染的调查所取得的结果,探讨北京地区镉在几种典型土壤剖面中的分布和区域分布,并按作者拟定的分级标准编制了北京地区土壤镉含量分布图。
In this paper, based on the investigation of cadmium content in regional soil and the investigation of soil cadmium pollution in sewage irrigation area, the distribution and regional distribution of cadmium in several typical soil profiles in Beijing area were explored. According to the grading standards proposed by the author, Soil cadmium distribution map.