Assessment of environmental quality in the base area of green food-A case study from Qing’an County．Heilongjiang Province

Using different assessment methods in allusion tO different environmental factors and the Fuzzy Synthetical Assessent which is possessed of fuzzy consequence and integrating fixed quality and quan tity factors，the quality of ecoenvironment of the base of green food material was assessed and the compatible subjective function waS confirmed by validation．The results show that the method is capable，the result is trustable and can be used in other bases of green food materia1.