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一、自然、概况松江县位于上海市郊西南,地图仪方位在东经121°01′～121°21′、北纬30°54′～31°10′之间。全县总面积为605、64平方公里,现有耕地53.36万亩,(内水田49.44万亩)。全县水面积约9万亩。本县河道均属黄浦江水系。今黄浦江发端于县境西南部、汇聚其上游三支源流(泖河——斜塘、大蒸塘——圆泄泾、大泖港),承泄太湖下游排水量的70—80%,米市渡站测得多年平均净泄流量为321秒立方米,相应
First, the natural, general Songjiang County is located in the southwest of Shanghai, the map location in the longitude 121 ° 01 ’~ 121 ° 21’, latitude 30 ° 54 ’~ 31 ° 10’ between. The county a total area of 605,64 square kilometers, 533,600 mu of existing land, (paddy field 494,400 acres). The county water area of about 9 acres. The county’s rivers are Huangpu River system. At present, the Huangpu River originates in the southwestern part of the county and brings together three of its upper stream sources (Bahe - Xietang, Dachantang - Yuantingjing and Dakang Port) to discharge 70-80% of the discharge from the lower reaches of Taihu Lake. City Ferry Terminal measured the average net discharge for many years to 321 seconds cubic meters, the corresponding