土壤对毒质的容量,是确定土壤污染水平的重要参数。从生态环境角度考虑,土壤容量就不单纯是指土壤本身吸附、固定或保存毒质的数量,而应当是植物被动吸毒达到开始受害时的土壤含毒量,即土壤毒质临界水平。为了探讨重庆紫色土对铅的容量,我 Soil to toxic capacity, is to determine the level of soil pollution an important parameter. From the point of view of ecological environment, the soil capacity does not simply mean the amount of soil that is adsorbed, fixed or preserved by the soil itself, but should be the soil toxicant at the beginning of the passive drug use of plants, that is, the critical level of soil toxins. In order to explore the capacity of lead in purple soil in Chongqing, I