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丽水市区城区水系发达,河流众多,且大多发源于山区,属山溪性河道,水量明显受季节和降雨量的影响,丰水期,河道坡陡流急,蓄渗能力差,产流时间短,汇流迅速、集中,洪水暴涨暴落,极易造成洪涝灾害;枯水时,河道流量极少,如果长时间没有降水,河道会断流干涸。针对山溪性河道的特点,本文对丽水市区两大流域河道生态环境用水的增水调水措施进行了研究分析,提出了增水调水工程措施。
Lishui urban area has developed water system and numerous rivers, most of which originated in mountainous areas. It belongs to a mountain stream river. The water volume is obviously affected by the season and rainfall. In the wet season, the steep flow of the river slope is steep, the infiltration capacity is poor, Short, confluence of rapid, concentrated, flood surges, can easily lead to floods; dry, the river flow is very small, if there is no precipitation for a long time, the river will flow drying up. According to the characteristics of mountain brooks, this paper studied and analyzed the water and water diversion measures of ecological environment in the two major river basins in Lishui City, and put forward the engineering measures of water diversion and water diversion.