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(一) 自然条件万县地区位于四川盆地东部,长江三峡西段,跨大巴山区、巫山、七曜山区和盆东平行岭谷区。地貌分布具有区域性,垂直差异十分明显,长江自西向东、横贯全境,东南北三面环山,西南开豁,地势由西向东逐渐升高,最高海拔2798.8米,最低海拔73.1米。本区气候属亚热带湿润季风区。年平均气温在13.8-18.6℃之间。以长江沿岸最高,北部山区最低,全年1月最冷(极端最低气温曾出现过零下
(I) Natural Conditions The Wanxian area is located in the eastern part of the Sichuan Basin, the western section of the Three Gorges of the Yangtze River, across the Dabashan Mountain, Wushan, Qi Yao Mountain and the basin-east parallel Ling Valley. Geomorphic distribution is regional and vertical difference is obvious. From the west to the east, the Yangtze River runs across the whole territory. The southeast is surrounded by mountains on three sides and the southwest is open. The terrain rises gradually from west to east with the highest elevation of 2798.8 meters and the lowest elevation of 73.1 meters. The climate is subtropical humid monsoon area. The average annual temperature is between 13.8-18.6 ℃. The highest in the Yangtze River, the lowest in the northern mountains, the coldest month in January (the extreme minimum temperature has occurred below zero