摘要
本文探讨了辽河平原地区不同土类的土壤中铬的自然背景值和分布特征,及其与土壤母质、土壤有机质、土壤物理粘粒的关系。调查结果表明,辽河平原土壤中铬的含量呈正态分布;其算术平均值为52.1ppm,含量范围在25.6—101.6ppm之间。不同土类中的铬与土壤有机质、土壤物理性粘粒(0.01—0.001mm)都有显著的正相关性。本文还从元素的化学性质方面初步讨计划论了铬与土壤中其它金属元素的关系。
The soil background contents and distributive feature of element chromium in various soil great groups of Liaohe River plain region are reported. The investigating results show that the normal distribution of chromium in soils is obeyed, which is in the range from 25.6 to 101.6 ppm. The distribution of chromium is mainly related to the parent material, theils.anic matter contents and clay fraction of soils The relationship of chromium with other metal elements is also discussed briefly.
出处
《农业环境保护》
CSCD
1989年第5期10-12,共3页
Agro-Environmental Protection
