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罗江县地处成都平原北部边陲、龙泉山脉北端，幅员面积４４７．８８km２，位于涪江、沱江分水岭线之间。全县水资源可利用量３．０４亿m３，人均可供水量４８５m３，亩平可供水量仅３８８m３。由于地表迳流主要集中在６～９月的洪水期，适时性差，加之受自然地理环境因素的制约
Luojiang County is located in the northern border of Chengdu Plain, the northern end of the Longquan Mountains, covers an area of 447.88km2, located in Fujiang, Tuojiang watershed line between. The county water resources available 304 million m3, per capita available water 485m3, mu flat water supply is only 388m3. Due to the surface turbulence is mainly concentrated in the flood period from June to September, the timeliness is poor, combined with natural geography and environmental factors