| Based on the introduction of the meaning of ecological risk assessment, this paper reviewed the domestic and abroad research progress and the key areas of ecological risk assessment, including the establishment of ecological evaluation index system and the confirmation of evaluation criteria, ecological risk assessment in water environmental chemistry, regional ecological risk assessment, landscape ecological risk assessment, watershed ecological risk assessment and “3S” technology in ecological risk assessment. It summarized the important technological means in selecting assessment methodology and model, the developing trend and the key issues that need to be urgently resolved in future research aiming at the existing problems and weak links in ecological risk assessment. |
