摘要
海洋牧场生态健康评价是海洋牧场生态保护的基础。本文采用层次分析法(AHP),以水质环境、生物资源和外来压力为准则层,以11个因子为指标层,建立了海州湾海洋牧场生态健康评价体系。通过指标赋值与权重计算,得到如下结论:(1)在准则层中,水质环境对目标层的影响最大为0.65,生物资源的权重次之,为0.28,外来压力的权重最小,为0.07。在指标层综合权重中,对海州湾海洋牧场生态状况影响最大的是溶解氧,其权重为0.2016,浮游植物次之,权重为0.1568;影响力最小的是寒潮,其权重为0.002,亚硝酸盐氮次小,权重为0.007。(2)海州湾海洋牧场综合评价指数CEI=0.68,生态健康状况为中,需要进一步加强生态保护措施,以确保海洋牧场可持续发展。
The ecosystem health evaluation of marine ranching is the basis for marine ranching ecology protection.This paper used Analytic Hierarchy Process （AHP）which took water quality environment,biological resources and external pressures as guidelines layers and the eleven factors as the index layer to accomplish the ecosystem health evaluation of the Haizhou Bay marine ranching.The main conclusions are as follows.（1）Among guidelines layer,water quality envi-ronment has the most significant impact on the target layer with the weight of 0.65,followed by the biological resources （weight 0.28）,and minimum influence is from the external pressures（weight 0.07）.Among the indices layer,the dis-solved oxygen has the highest weight of 0.2016,followed by the phytoplankton（weight 0.1568）.The least impact is from cold wave （weight 0.002）followed by the Nitrite（weight 0.007）.（2）The comprehensive evaluation index （CEI） of ecological system of marine ranching of the Haizhou Bay is 0.68,and the ecological health condition rating is moder-ate.So it needs to further strengthen the ecological protection measures and ensure the sustainable development of marine ranching.
出处
《激光生物学报》
CAS
CSCD
2014年第6期626-632,共7页
Acta Laser Biology Sinica
基金
中欧国际合作"龙计划"课题三期项目(10470)
