调水工程河道内生态需水量研究及实例分析VIP免费

下载后可任意编辑调水工程河道内生态需水量讨论及实例分析吴春华 轩晓博 （黄河勘测规划设计有限公司，河南 郑州 450003）【摘 要】 生态需水的讨论已成为国内外地球科学领域普遍关注的一个热点问题。南水北调西线工程调水河流生态需水量的计算也是调水规模论证的基础。在对生态需水相关理论进行概括总结的基础上，应用国内外较为成熟的水文学和水力学方法，对西线调水工程的河道内生态需水量进行了分析计算，并根据南水北调西线工程调水区独特的生态环境保护目标，考虑主要保护两岸植被及河道内的水生生物，且结果能满足维持河流生态系统健康的需要，选取针对性的方法对河流生态需水量进行了分析与计算。结果表明：为满足不同保护对象对生态环境需水的要求，调水河段生态环境需水采纳各月生态环境需水的外包线，即 3～6 月为 4 m3/s～55m3/s，7～2 月为 2 m3/s～40m3/s。河道内年均生态环境流量分别为：热巴 40m3/s，阿安、仁达、珠安达、霍那均为 6m3/s，洛若、克柯 2均为 2.7m3/s。 [关键词] 南水北调西线一期工程；调水河流；生态需水量Study and case analysis on the Ecological Water Demand in River Channels of Water division project Wu ChunHua Xuan XiaoBo Yellow River Engineering Consulting Co.Ltd., Zhengzhou,450003, HenanAbstract: The field of ecological water demand has been one of the research foci of geographical sciences in the world. The calculation of ecological water demand in water exporting river of the first stage of western line from south to north water transfer project is the base of water transfer scale argumentation. Based on the summary of ecological water demand theory research, we calculated the ecological river flow of water transfer project by ripe hydrology and hydraulics method. we also considered the need of keeping river system health and protecting the plants of side banks and the living things in river reaches according to the unique eco-environment of western route in water exporting region and the goal of environment protection. Then we select...