摘要
从年平均气温和年降水量、景观特征、生态功能、人类扰动4个方面,构建湿地景观生态健康评价指标体系,利用层次分析法和熵值法,建立博弈论集结模型,确定权重;在对鸭绿江口滨海湿地生态功能和景观脆弱性分析的基础上,采用改进的韦伯—费希纳定律,对鸭绿江口滨海湿地景观生态健康状况进行评价。结果表明,与1995年相比,2005年的生态系统服务价值总量有所增大,2015年的生态系统服务价值总量明显减小;3个时期的景观脆弱性指数变化很小,即对外界干扰的敏感度也变化很小。1995年、2005年和2015年景观生态健康指数分别为0.202、0.167和0.079,景观生态健康状况由健康到临界健康到不健康。景观脆弱性与景观生态健康存在一定的关联性,景观脆弱性指数越大,对外界干扰越敏感,景观生态健康状况越差。
In this paper constructs ecological health evaluation index system for wetland landscape was con- structed by the annual mean temperature and annual precipitation, landscape features, ecological functions of elements, and human disturbance elements. A combination of analytic hierarchy process （AHP） and entropy were used to set up a game theory aggregation model. And the weights were determined. On the basis of the ecological functions and landscape vulnerability analysis of the mouth of the Yalu River, the Weber Fechner law was used to make quantitative ecological health assessment and analysis of the area. The results showed that compared with the total value of ecosystem services in 1995, the value in 2005 has increased, and that in 2015 has decreased significantly. The landscape vulnerability index has few changed in the three periods, that is to say, there was few changes of sensitivity to interference. The landscape ecological health assessment in- dex in 1995, 2005 and 2015 were 0.202, 0.167 and 0.079, and ecosystem health of coastal wetlands presented from health to critical health to the development and change of unhealthy. There was some relevance between landscape vulnerability and ecological health. If the vulnerability of landscape is greater, the more sensitive to external disturbance is, and the worse landscape ecological health is.
出处
《湿地科学》
CSCD
北大核心
2017年第1期40-46,共7页
Wetland Science
基金
教育部人文社会科学重点研究基地重大课题项目(16JJD790021)资助
关键词
景观生态健康
滨海湿地
景观脆弱性
韦伯—费希纳定律
ecological health of landscape
coastal wetlands
landscape vulnerability
the Weber Fechner law
