The invention discloses a regional environment
risk evaluation and division method based on a risk field. The method comprises: firstly, a regional environment
risk evaluation index system framework is established based on a DPSIR model, the DPSIR model serves as a framework, regional
ecological environment safety is guaranteed, an environment function area is effectively guided to serve as a target, and connotation of indexes is determined with analysis of an environment risk forming mechanism serving as a benchmark; then, evaluation index screening is carried out, and
standardization processing is carried out on indexes; secondly, regional environment risk comprehensive level grading is carried out, the regional
ecological environment safety comprehensive index is adopted for representing the regional
ecological risk overall condition, finally regional environment
risk zoning is carried out, and a risk acceptable area, a risk early warning area and a risk reduction area are determined. According to the invention, a regional environment grading and partitioning method
system based on
receptor vulnerability assessment and
risk source hazard assessment is established, so that threats to
ecological environment safety caused by prominent
layout environment risks and high environmental
pollution accidents at present are reduced.