Regional ecological risk assessment (RERA) can be defined as a risk assessment deals at a spatial that contains multiple habitats with multiple sources of multiple stressors affecting multiple endpoints and the characteristics of the landscape affect the risk estimate. Therefore, establishment RERA index system was quite complicate and being a hotspot in resent research. This paper discussed the history of RERA, reviewing RERA study in China and the proper site selection in Hulunbeier presenting RERA index system. An index system was set up based on the principle: Comparability, Available and Relevant. This index system developed by regarding the risk of land use change, industrial pollution and social economy as well as adopted ecosystem services, landscape and support system for regional risk assessment of degraded land (SYRIADE) methods.
A new ecological risk assessment index for metal elements in sediments based on receptor model, speciation, and toxicity coefficient by taking the Nansihu Lake as an example
