蒙山县新圩镇供水和县城区生态修复补水方案研究

Study of schemes for water supply of Xinxu town and urban area ecological water replenishment at Mengshan County

蒙山县新圩镇目前主要供水水源为古皂冲、山溪水,基本无调蓄能力,枯水期供水能力不足。蒙山县城区因城市开发建设,穿过城区的部分河道被挤占,河流下垫面发生较大变化,且部分河段连通不畅,水生态环境较差。通过分析蒙山县城区、新圩镇周边水资源状况和开发利用条件,结合水源水量水质情况、城区发展规划、经济合理可行等因素,对不同水源工程方案进行综合比较,最终推荐在古皂冲新建古皂水库作为新圩镇、蒙山县城区西岸水系生态补水的重要水源。

The major water sources of Xinxu town of Mengshan County are Guzao gully and mountain streams without storage capacity. Water supply is insufficient in dry period. Due to urban construction and development, some parts of the river course passing through the urban area of Mengshan County were occupied;great changes have taken place in the underlying surface of the river;some river sections can’t connect smoothly;the water ecological environment is relatively poor. Analysis was made on the surrounding water resources of the urban area of Mengshan County and Xinxu town as well as the utilization conditions, based on which several water source schemes were compared taking into account the water volume, water quality, urban area development planning, proper and feasible cost etc., before the scheme of Guzao Reservoir was finally recommended. This reservoir will be newly constructed at Guzao Gully as the important water source for Xinxu town and ecological water replenishment of urban area to the western bank.