西洞庭湖青山湖城市湿地公园景观健康评价

Ecosystem Health Assessment of Qingshan Lake City Wetland Park in West Dongting Lake

摘要:

摘要：以西洞庭湖青山湖城市湿地公园为研究区域，采用1993、1998、2002、2005、2009、2013 六年的遥感影像数据为基础数据，从湿地环境、湿地景观格局和社会经济功能三方面选取评价指标，构建城市湿地公园生态系统健康评价指标体系。利用熵权法确定各指标权重，对西洞庭湖青山湖城市湿地公园景观生态系统进行健康评价。评价结果显示，1993~2013年湿地健康状况均为亚健康状态。根据综合评价结果可得出，西洞庭湖青山湖城市湿地公园的综合健康评价结果处于先降低后升高再降低再升高的状态，在1998年和2005年健康状况处于低水平状态，2005年以后，城市湿地公园建立后健康状况逐渐好转。

Abstract:

Abstracts:In recent years, national urban wetland park has a rapidly development in china, but the study of urban wetland park is still at the initial stage. Taking national Urban Wetland Park in West Dongting Lake as the research area,and using the remotely sensed images of 6 phases since 1993 to 2013, remote sensing data which obtained in 1993,1998,2002,2005,2009,2013, as basic data，through the supervised classification the wetland types of national urban wetland park are classified.The paper selected indexes from the environmental character, landscape pattern and the society economy function of the wetland, and then established an indicator system for ecosystem health evaluation of national urban wetland park. Using the entropy weight method to determine the index weight, and eventually evaluate landscape ecosystem health of the national urban wetland park in West Dongting Lake.Through analyzing the evaluation results to the health of these years, it is concluded that landscape ecosystem health status changes of research area in time and space, and gives reasonable suggestion for how to protect and manage the wetland park effectively.In view of the evaluation results some illness factors of the wetland were discussed in 1993-2013.According to the results,we can know that the health is not stable.The health status is at a lower level in 1998 and 2005,and the status is become healthier after 2005.