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(一)金山区地处太湖流域下游,北和松江、青浦相邻,南临杭州湾。总面积544km~2,耕地面积53.22万亩,属平原感潮河网地区,地势平坦,略呈倾斜,东南高,西北低,南部地面高程一般在4m左右,占总面积35%;中部地面高程一般在3.5～4m左右,占总面积40%;西北部地面高程一般在3.5m以下,占总面积的24%。境内河道纵横密布,水面积达47.6km~2,占总面积的8.12%。多年平均降水量1090mm,常年平均水位为吴淞2.2m。受
(A) Jinshan District is located in the lower reaches of the Taihu Lake Basin, north and Songjiang, Qingpu adjacent to Hangzhou Bay in the south. The total area of 544km ~ 2, 532200 acres of arable land, is a plain tidal river network area, flat, slightly tilted, southeast, northwest low, the southern ground elevation is generally about 4m, accounting for 35% of the total area; central ground elevation Generally about 3.5 ~ 4m, accounting for 40% of the total area; northwest ground elevation is generally 3.5m, accounting for 24% of the total area. The territory of the vertical and horizontal channels of water, the water area of 47.6km ~ 2, 8.12% of the total area. The average annual rainfall of 1090mm, the average annual level of Wusong 2.2m. By