Qianjiang District is located in the hinterland of Wuling Mountains. Chongqing's drinking water mainly relies on the ruins of the earthquake reservoir Xiaonanhai reservoir supply. Due to special historical reason, small reservoir is the national science education base and the national earthquake site protection zone. The reservoir is the national 4A level scenic spot. Ac-cording to the evaluation standards of water quality by using "surface water environmental quality standard" ( GB 3838-2002 ) assessment requirements, analysis results show that the trend of eutrophication has increased, water quality decreased from class Ⅱ to class Ⅲ, with the development of rural tourism craze, For the government and the relevant departments to take effective meas-ures to limit the reservoir to carry out scientific education of the reservoir, and do a good job of reservoir drinking water environ-mental protection work to provide reference and reference.%黔江区地处武陵山区腹地,城区的主要饮用水源依靠地震遗址水库小南海水库供给,小南海水库特殊的历史缘故,是全国科普教育基地和国家地震遗址保护区,水库现为国家4A级风景区.根据水质评价标准采用《地表水环境质量标准》(GB 3838-2002)评价要求,分析结果表明水质富营养化趋势有所上升,水环境质量由Ⅱ类下降为Ⅲ类,随着乡村旅游热的升温,为政府及相关部门采取有效的措施对水库限制性开展水库的科普教育,做好水库的饮用水环境保护工作提供参考与借鉴.
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