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首页> 外文会议>High-level International Forum on Water Resources and Hydropower(第一届国际水利水电高层论坛） >ECOLOGICAL AND ENVIRONMENTAL WATER REQUIREMENT OVER THE EAST RIVER(DONGJIANG)DELTA
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ECOLOGICAL AND ENVIRONMENTAL WATER REQUIREMENT OVER THE EAST RIVER(DONGJIANG)DELTA

机译：东江三角洲的生态与环境需水量

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摘要

Nowadays societal interest in river ecosystem restoration for supporting ecosystem health is growing rapidly around the world.The aim of this paper was to investigate the ecological and environmental water requirements over the East River delta，and provide water managers with environmental flow recommendations.Ecological and enviromental water requirements are divided into instream and outstream water requirements.The total instream water requirement should be the minimum stream flow to satisfy river functions，such as basic ecological water requirement，water purification，water discharge into the sea，and navigation.Thereby the minimum instream water requirement over the East River delta is 210m3/s in the dry season，and 29 1.8 m3/s for the wet season.The East River is the main fresh water sources for Hong Kong， Shenzhen，Dongguan，Huizhou，Guangzhou.The total pumping rate from the East River，that is， the outstream water requirement，is about 200m3/s.Thereby the ecological and enviromental water requirement is 410m3/s for the dry season.and 491.8 m3/s for the wet season over che East River delta.Since the stream flow in the dry season can not meet the water requisition well，alternative water resources management strategy，such as alternative water functions，reservior regulation， underground water resources exploitation，reuse of waste water，and utilization of sea water， should be adopted.
机译：当今社会对支持生态系统健康的河流生态系统恢复的兴趣正在迅速增长。本文的目的是调查东河三角洲的生态和环境需水量，并为水管理者提供环境流量建议。生态与环境需水量分为上游需水量和下游需水量。总上游需水量应为满足基本生态需水量，净水量，入海排水量和通航水量等满足河流功能的最小需水量。东江三角洲在旱季的需水量为210m3 / s，在雨季为29 1.8 m3 / s。东江是香港，深圳，东莞，惠州，广州的主要淡水源。东河的抽水率，即下游的需水量，约为200m3 / s。车东河三角洲的旱季环境需水量为410m3 / s，湿季为491.8 m3 / s。由于旱季的水流量不能满足需水量，替代水资源管理策略，应采用替代水功能，水库调度，地下水资源开发，废水回用和海水利用等方式。

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