一、自然条件及其土地类型鄱阳湖地区位于江西北部,行政上包括波阳、乐平、余干、万年、余江、东乡、进贤、临川、抚州市、清江、丰城、高安、安义、南昌、新建、南昌市郊区、九江、永修、德安、星子、湖口、都昌、彭泽、瑞昌、九江市等25个县市。土地面积近四万平方公里,约占全省土地面积的23.4％,耕地1400多万么,人口约1200万人。以生产粮棉油鱼为主,近几年每年向国家提交的征购粮占全省的45％,商品棉占87％,商品油占41％,水产品占47％,是著名的鱼米之乡。我省最大的粮棉油鱼生产基地,也是全国著名的商品粮基地。鄱阳湖是长江中游一大吞吐湖,我省赣、抚、信、饶、修五大河的天然蓄水池,常年水位变化在13.4～18.1米之间。鄱阳湖地区主要由古生代变质岩,白垩纪红砂岩及第四纪沉 First, the natural conditions and types of land Poyang Lake area is located in northern Jiangxi Province, the administrative area including the Bo Yang, Leping, Yugan, Wannian, Yujiang, Dongxiang, Jinxian, Linchuan, Fuzhou, Qingjiang, Fengcheng, Anyi, Nanchang, Nanchang, the new suburbs, Jiujiang, Yongxiu, Dean, Xingzi, Hukou, Duchang, Pengze, Ruichang, Jiujiang City and other 25 counties. The land area of ​​nearly 40,000 square kilometers, accounting for 23.4% of the province’s land area, about 140000 acres of arable land, about 12 million population. In order to produce grain, cotton, oil and fish, the annual procurement of grain submitted to the state in recent years accounted for 45% of the province, with 87% of commodity cotton, 41% of commodity oil and 47% of aquatic products. Our province’s largest grain cotton oil production base, but also the famous commodity grain base. Poyang Lake is a large swallowing lake in the middle reaches of the Yangtze River. The province’s natural reservoirs of Jiangxi, Fuding, Xintai, Rao and Xihu rivers vary from 13.4 to 18.1 meters in perennial water level. Poyang Lake area mainly consists of Paleozoic metamorphic rocks, Cretaceous red sandstone and Quaternary sediments