铬污染地区环境对植物吸收重金属的影响

对重金属铬污染地区的生态环境和植物吸收与富集重金属的研究表明：铬矿渣造成周边土壤的严重污染，而土壤中Cr含量与取样点至铬矿渣堆的距离则成反比．污染区植物根部具有较强的Cr吸收与富集作用，其植物根部Cr含量与相应土壤中Cr含量成正比．

Effects of the Environment Polluted by Heavy Metal Cr on Plant Growth

The effects of Cr pollution on the ecological environment of the plants and absorption and accumulation by the plants were investigated using atomic absorption spectrophotometer. The results indicated that Cr slag can obviously pollute the soil and surface water; the Cr content in the soil is inversely proportional to the distance from the samples to the Cr slag heap; and the roots of plants grown in contaminated region obviously possess abilities of absorpting and accumulating Cr and the Cr contentinit is direct ratio to that of the soil where the plants grow.