土壤重金属污染生态风险评价方法综述

生态风险评价是风险论与生态学、环境科学、地学等多种学科相互交叉的边缘学科.以土壤生态系统为对象,介绍了目前已有的几类重金属污染生态风险评价方法,包括概念模型法、数学模型法、指数法、形态分析法、植物培养法等.指出根据研究目的与污染特性选择适当的评价方法,可以为土壤生态风险管理提供科学信息.

Review in Ecological Risk AssessmentM ethodsfor Heavy M etalPolluted Soils

The ecological risk assessment is a crossing edge subject of the risk theory, ecology, environmental science and geography etc. Soil ecosystem system is the Study object of this article, because the phenomena of heavy metal polluted soils are more and more serious today. Taking the soil ecosystem as the object, at present some kinds of heavy metals pollution ecology risk assessment methods such as the concept model method, mathematics model method, index method, speciation analysis method, planting method were introduced. The suitable assessment method according to the goal of study and the pollution characteristic can provide the scientific information for the soil ecology risk management.