The regional ecological risk assessment of the Dongting Lake watershed
洞庭湖流域区域生态风险评价

In ecosystem, the generation of catastrophic events arises from the cooperative impact of the external stressing factors and the internal unsteady factors existing in an ecological structure, which should be fully taken into account for regional ecological risk assessment. At present, research on external stressing factors is much focused on the natural disasters (such as storm flood disasters) and research on external contaminants is in large part concentrated on discharged heavy metals. But in fact, other...