This paper summarized the indication and connotation of ecological security and precautionary approach.It is based on three parts which are environment of resource factor-aggregate,eco-environment pressure-factor-aggregate and society-economy-factor-aggre
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黄舸,孙凡.重庆市生态安全评价系统研究[J].重庆工商大学学报(自然科学版),2006,(3): HUANG Ge, SUN Fan. Assessment system and precautionary approach for ecological security in Chongqing[J]. Journal of Chongqing Technology and Business University(Natural Science Edition),2006,(3):