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龙溪河流域位于四川省东南部丘陵地带,系长江北岸的一条小支流,发源于梁平县境内,流经梁平、垫江、长寿三县注入长江。整个流域近似长方形,全河长190公里,流域面积3280公里~2,冷水溪水文站(六剑滩)以上2380公里~2,在狮子滩水库坝址以上为3020公里~2。 流域内较大暴雨发生在5～9月,尤以6～7月较为集中,降水充沛,狮子滩多年平均降量水为1174.5毫米,最大年降水量为1458.4毫米。流域地质属川东地区向斜层,岩层由白垩纪砂岩、页岩组成。地表层覆盖较薄,泉水稀少,河水全由降雨供给,不雨则早。且流域面积小,暴雨集中,集流迅速,水
Located in the southeastern hilly region of Sichuan Province, Longxi River is a small tributary of the north bank of the Yangtze River. It originated in Liangping County and flows into the Yangtze River through three counties: Liangping, Dianjiang and Changshou. The entire basin is approximately rectangular with a total length of 190 km and a river basin area of 3280 km ~ 2. It is 2,380 km ~ 2 above Lengshixi Hydrological Station (Liujiantan) and 3020 km ~ 2 above the dam site of Shizitan Reservoir. The heavy rainfall in the basin occurred from May to September, especially from June to July, with abundant rainfall. The average water drop of Shizi Beach was 1174.5 mm and the annual precipitation was 1458.4 mm. Geological basin is the eastern Sichuan Basin syncline, rock formation by the Cretaceous sandstone, shale composition. Surface cover is thin, sparsely populated, all water supply by the rain, rain is not early. And the basin area is small, heavy rain concentrated, rapid flow, water