木兰溪流域生态环境质量评价

Assessment of Ecological Environment Quality in Mulanxi Watershed

木兰溪是福建重要的河流之一,近年来流域的生态环境问题越来越引起人们的重视。根据木兰溪流域的自然环境特征,建立评价指标体系,应用层次分析(AHP)法及GIS,对木兰溪流域生态环境质量进行综合评价。结果表明,3年来,木兰溪流域生态环境质量总体较好,上游生态环境逐年稳步并呈现朝较好方向发展的趋势,但局部地区尤其是流经市区河段生态环境恶化。结合评价结果,分析了木兰溪流域的主要生态问题,并提出了可持续发展对策。

Mulanxi is one of the important rivers in Fujiang,and the ecological environment problems in its watershed have received more and more attentions.According to the natural environment characteristics in Mulanxi watershed,the evaluation index system is established,and analytic hierarchy process（AHP） method and GIS are used for comprehensive evaluation of ecological environment quality in Mulanxi watershed.The results show that the ecological environment quality in Mulanxi watershed is generally good in recent 3 years,and the upstream ecological environment is stable year by year and presents good development trend,but the ecological environment in local area especially the urban river section is deteriorated.Combined with evaluation results,the main ecological problems in Mulanxi watershed is analyzed,and the countermeasures of sustainable development are proposed.