论文部分内容阅读
１唐山地区水利工程现状唐山地区位于河北省东部，东经１１７°３１′～１１９°１９′，北纬３８°５５′～４０°２８′之间，北依燕山，南临渤海，西与天津市相邻，东与秦皇岛相接。唐山地势北高南低，北部多山，中部为燕山的平原，地势平坦；南部和西部为滨海盐碱地和洼地?
1 Current Status of Water Conservancy Projects in Tangshan Tangshan is located in the east of Hebei Province, with longitude 117 ° 31 ’~ 119 ° 19’ east longitude and 38 ° 55 ’~ 40 ° 28’ north latitude, with Yanshan Mountain in the north, Bohai Sea in the south, Neighboring, East and Qinhuangdao phase. Tangshan terrain north high south, mountainous in the north, central Yanshan plain, flat; southern and western coastal saline land and depression?