摘要
以湿地保护区的生态环境结构特征为基础,依据层次分析法和指数评判的方法对湿地保护区生态功能进行了定量分析评价。结果表明:①凌河口湿地生态功能中调节洪水、生物产品、土壤保持发挥着比较重要的作用;科教功能、生物多样性、供水功能也起到了重要的作用;而历史文化、美学价值、娱乐功能属于社会功能范畴,在功能发挥中重要性显得不是十分突出。②根据综合评判得出凌河口湿地功能综合评价指数为0.447 5,其综合功能评价属于一般。这说明凌河口湿地的生态结构完整,虽然可发挥基本的湿地生态功能,但由于受到外界自然和人为因素的影响,敏感性强,生态系统比较脆弱。层次分析法能较好地应用于辽宁省凌河口湿地保护区的生态功能评价,符合保护区湿地生态系统现状,为凌河口湿地保护区的规划、管理和保护提供重要参考依据。
Based on the structural characteristics of the wetland ecological environment, this paper analyzed and evaluated the ecological functions of the wetland quantitatively by using the AHP method and index evaluation method. The results showed that： （1）the regulating floods, biological products and soil conservation played an important role in the ecological functions of Ling estuarine wetland; the functions of science and education, biodiversity and water supply were also important; while the functions of history and culture, aesthetic value and entertainment seemed not very prominent since they were social functions. （2）The comprehensive evaluation index of Linghe estuary wetland was 0. 447 5 according to comprehensive evaluation, which could be classified as general level. It meant that the wetland had an integrated ecological structure which could exert basic ecological functions, but the ecosystem was sensitive and relatively fragile due to external natural factors and human factors. Analytical Hierarchy Process model is testified to work well in ecological functions evaluation of Linghe estuary wetland, the model is consistent with current status of the wetland eco- system and can be an important reference in the process of planning, management and conservation for Linghe estuary wetland.
出处
《节水灌溉》
北大核心
2014年第5期48-51,共4页
Water Saving Irrigation
基金
国家自然科学基金项目(50879046)
教育部高等学校博士学科点专项科研基金(教技发中心函[2006]226号)
