贵州草海湿地生态脆弱性动态评价

Dynamic assessment on ecological frangibility of wetlands in Caohai of Guizhou province

通过对草海湿地的现状进行分析,结合"3S"技术和生态系统健康理论以及景观生态学理论,采用"压力-状态-响应"评价模型评价了1992年、2000年和2013年3个时期贵州草海湿地生态脆弱性动态变化;结果表明:草海湿地生态系统的主体功能较为完善,但仍然存在一定程度的退化。草海湿地生态系统景观基本完整的面积比例由1992年的70.56%减少到2013年的66.26%,湿地景观基本遭到破坏的面积比例由1992年的12.11%增加到2013年的13.38%。

The purpose of this paper is to evaluate the ecological frangibility of wetlands in Caohai of Guizhou province in three periods （1992、2000 and 2013）.The author analyze the status quo of the wetlands of Caohai by using the model of Pressure-State-Response,combined with ＂3S＂ technology,the theory of ecosystem health and landscape ecology.The results show that the ecosystem function of wetland in Caohai is relatively perfect,but still exists a certain degree of degradation ; The ecosystem landscape basic complete area reduce by 70.56％ to 66.26％ and basic destroyed increased area by 12.11％ to 13.38％ from 1992 to 2013.