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机构地区:[1]武汉大学水资源与水电工程科学国家重点实验室,湖北武汉430000
出 处:《节水灌溉》2010年第10期64-65,71,共3页Water Saving Irrigation
基 金:国家自然科学基金重点项目(50639040);国家"863"计划(2006AA06Z342);湖北省自然基金(2005ABA290);武汉大学大学生创新项目等
摘 要:渠道衬砌是灌区节水的重要途径之一,生态型渠道形态和功能构建关键技术的研究对于灌区的生态建设意义重大。针对传统灌区沟渠日益突出的生态环境条件恶化、生物多样性下降等问题,对灌区生态型沟渠空间形态构建、水体自净能力提高和水质改善、适宜生境条件构建等关键技术进行研究和实践是非常有必要的。生态衬砌是一种能够弥补传统渠道衬砌的负面影响,改善现有渠道中的生态环境,同时也保持传统渠道衬砌的防渗优势的工程技术措施。为此,进行渠道生态衬砌可以获得节水和生态环保的双重效果。在分析传统渠道衬砌引起生态问题的基础上,对现行的三种渠道生态衬砌方法作了简要的介绍,并对其应用前景进行了分析。Canal lining is one of water-saving techniques in irrigation district,and the researches on the forms and functions of ecological canals have become more and more important.As the ecological environments of traditional irrigation district have been worsening and biodiversity degrading,it is necessary to research on key technologies for construction of the spatial pattern of ecological canal lining,improvement of the ability of self-purification and water quality of water body,and building suitable ecological environment for other living things.Eco-lining of canal is one of the most effective ways to construct ecological irrigation districts and keep the function of seepage control of traditional canal.So,adopting canal eco-lining technique can obtain the double effects of water-saving and eco-environment conservation.On the basis of analysis of the ecological problems induced by traditional canal lining techniques,3 kinds of canal eco-lining techniques are introduced and the application prospects of the techniques are discussed in this paper.
分 类 号:S275.3[农业科学—农业水土工程]
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