利用PSR模型的椒江河口生态系统环境质量评价  

Assessment on Environmental Quality of Estuary Ecosystem of Jiaojiang River based on Press-state-response Model

作　　者：黄备 邵君波 孟伟杰 周斌[2] HUANG Bei SHAO Junbo MENG Weijie ZHOU Bin(Zhoushan Marine Ecological Environment Monitoring Station, Zhejiang Province, Zhoushan 316021, Zhejiang, P.R. China , Institute of Remote Sensing and Earth Sciences, Hangzhou Normal University, Hangzhou 311121, Zhejiang, P.R. China)

机构地区：[1]浙江省舟山海洋生态环境监测站,浙江舟山316021 [2]杭州师范大学遥感与地球科学研究院,浙江杭州311121

出　　处：《湿地科学》2016年第6期825-831,共7页Wetland Science

基　　金：国家自然科学基金项目(41206186);浙江省科学技术厅公益重点项目(2014C23002);浙江省环境保护厅科研项目(2012A033;2013A020)资助

摘　　要：采用PSR（pressure-state-response）模型研究方法,筛选出32项社会经济和生态环境状态相关指标,建立河口生态系统评价体系,评价浙江省台州市椒江区河口生态系统环境质量;应用层次分析法,计算各指标的权重;根据建立的河口生态系统评价体系,对2003-2011年的椒江河口生态系统环境质量进行评价,分为优、良、中、差和劣5个等级。结果表明,2003年的研究区河口生态系统指数最大,为0.502 5,生态系统环境质量等级为中;2004-2007年,该河口生态系统指数都小于0.4,生态系统环境质量等级为差;2008-2011年,该河口生态系统指数有所增大,都大于0.4,生态系统环境质量等级都为中。椒江口河口生态系统最主要的压力是生境破坏,大规模的围海造地是生态环境质量下降的主要原因。Coastal areas of Jiaojiang River estuary were selected as the study area. Based on press-state-response（PSR） model, an assessment framework containing a total of 32 indicators on socio-economic and ecological environment was established. The weight values were calculated with the analytical hierarchy process approach. The environmental quality of estuary ecosystem was divided into excellent, good, medium, poor and bad. The results of estuary ecosystem assessment in Jiaojiang estuary during 2003-2011 showed that the estuary ecosystem index（EEI） reached the maximum at 0.502 5, corresponding to the assessment level medium in 2003, then decreased to below 0.40 and matching the level poor during 2004-2007, and rebounded back to over 0.4 and leveling medium during 2008-2011. The changes of pressure indices revealed that the main ecosystem stress in Jiaojiang estuary was habitat destruction and land reclamation was the main reason for the decline of ecological environment quality.

关 键 词：河口生态系统 PSR模型 生态评价 椒江河口 

分 类 号：X826[环境科学与工程—环境工程]