论文部分内容阅读
一、自然地理及变迁情况鄱阳湖是我国目前最大的淡水湖。鄱阳湖地区素称“鱼米之乡”,是我国主要商品粮基地之一,是江西省政治、经济、文化中心所在地,也是庐山旅游胜地的组成部分。位于东经115°50′～116°45′,北纬28°20′～29°50′,长江之南,江西北部,庐山东麓(见图1)。流域周围环山,中间丘陵,南高北低,四周向湖倾斜,水系完整。纳江西省赣、抚、信、饶、修五河及博阳湖、西河来水,调蓄后经湖口汇入长江。流域面积162,225平方公里,约占长江流域面积的9％,占江西全省面积的97％。五河中赣江最大,占湖区流域面积的49.9％,次为抚河(9.7％)、信江(9.6％)、修河(8.1％)、饶河(7％)。湖口至五河控制站的区间面积25,499平方公里,为流域面积的15.7％。湖面以松门山为界,分为南北二部,南部宽
I. Physical Geography and Changes Poyang Lake is the largest freshwater lake in China at present. Poyang Lake region is called “the hometown of fish and rice” and is one of the main commodity grain bases in China. It is also the location of the political, economic and cultural center of Jiangxi Province. It is also an integral part of Lushan Mountain Tourist Resort. Located at longitude 115 ° 50 ’to 116 ° 45’ and latitude 28 ° 20 ’~ 29 ° 50’ north, south of Yangtze River, north of Jiangxi Province and east of Lushan Mountain (see Figure 1). Valley around the valley, the middle hills, high in the north and south, surrounded by the lake tilt, water system integrity. Jiangxi province Jiangxi, Fu, letter, Rao, repair Wuhe and Bo Yang Lake, West River incoming water, after storage by the Hukou import Yangtze River. Drainage area of 162,225 square kilometers, accounting for about 9% of the Yangtze River basin area, accounting for 97% of the province of Jiangxi Province. Among the five rivers, the Ganjiang River is the largest, accounting for 49.9% of the lake basin area, followed by Fuhe (9.7%), Xinyang (9.6%), Xiuhe (8.1%) and Raohe (7%). The section area from Hukou to Wuhe Control Station is 25,499 km2, which is 15.7% of the basin area. Songmen Mountain lake as the boundary, divided into two parts north and south, south wide