基于PSR框架模型的赣江上游生态系统健康评价  

Ecosystem Health Assessment of Gan River Upstream based on PSR Model

作　　者：陈美球[1,2] 许莉[1] 刘桃菊 黄宏胜[1,2] 

机构地区：[1]江西农业大学国土资源与环境学院,江西南昌330045 [2]江西省鄱阳湖流域农业生态工程技术研究中心,江西南昌330045

出　　处：《江西农业大学学报》2012年第4期839-845,共7页Acta Agriculturae Universitatis Jiangxiensis

基　　金：江西省自然科学基金项目(2009GZN0026);江西省教育厅科技项目(GJJ10415)

摘　　要：针对赣江上游生态系统特征,运用"压力-状态-响应"(PSR)框架模型,构建赣江上游流域生态系统健康评价的指标体系和评价模型,并以县为评价单元对2005年赣江上游生态系统健康进行评价,研究结果表明:赣江上游流域生态系统健康状态总体上比较好,属于健康二级区,在16个县(市、区)中,除赣州市中心城区所在的章贡区,属于相对极差的健康五级区外,其它县(市、区)的生态系统健康水平差别并不大,崇义、安远、石城等11个县(市、区)处于健康二级区,占绝大部分比例,兴国、赣县、于都、南康等4个县(市、区)处于健康三级区。研究还根据各县(市、区)制约生态系统健康最主要的因素,有针对性地提出,提升健康水平的对策建议。According to the characteristics of the ecosystem Gan River upstream basin using the ＇ pressure - state - response＇ （PSR） frame model, the ecosystem health evaluation index system and evaluation model of Gan River upstream were established, with which the ecosystem health in Gan River upstream basin in 2005 was evaluated. The results showed that： the overall situation of ecosystem health in Gan River upstream basin is good which belongs to the second level of health. Of 16 counties, Zhanggong area of Ganzhou belongs to the fifth level which is relatively poor, Chongyi, Anyuan, Shicheng etc 11 counties belong the second level of health, accounting for the majority of proportion, Xingguo, Ganxian, third level of health. In addition, in accordance with the main factors county, some countermeasures to improve health level are put forward. Yudu, Nankang counties belong to the which restrict ecosystem health of each

关 键 词：生态系统 健康评价 PSR 赣江上游流域 

分 类 号：S718.557[农业科学—林学]