大汶河为什么会出现由东向西流的反常现象

Wenshang, is above as the name suggests Wenshui. County-wide domestic has Dawen River, north small Wen River flows through as well as west, also has rivers and so on Quan River to flow through eastern part then the afflux to small Wen River, also completely stems from Wenshui's supplies including the county territory following ground water, just likes on the mountain, on the vehicle and so on, the Wenshang entire county territories are situated at above Wenshui, therefore acquires fame Wenshang.
the Wenshang County is situated at the Shandong Province north west, governs is Jining, east near old city Qufu, west meets the water to anchor Liangshan, south depends on the Weishan lake, north pillow Dongyue Taishan. East Japan crosses the thing high speed, 105 federal highway north-south north and south. Is apart from the Beijing-Shanghai line Yanzhou station, the Beijing nine Liangshan stations and the Beijing luck, the Beijing-Shanghai highway, Beijing-Hangzhou canal Hangzhou transports the wharf even 40 kilometers. Next governs the Wenshang town, the south station town, Kang Yizhen, south the prosperous town, Liu Louxiang, Qiu Zhen, the third branch temple town, Guo Louzhen, Guocang Town, the Yangdian township, the military farm settlement township, Baishi Town, park Zhuang Zhen, righteousness bridge township and so on ten in all directions villages and towns.
in the Wenshang ancient name, the history is glorious, the cultural inside story is rich, is the famous Buddhism Holy Land. County northwest corner's crown prince works the trace tower to build in Song Dynasty, imposing. in March, 1994, has discovered 141 Buddhism halidoms in the tower. 501 B.C., the great thinker, the educationalist, at the beginning of statesman Kong Zi in Shi butchers. Ming Dynasty Jiajing to Wanli, Wenshang has four people to take the post of duty of one after another the Shangshu. The Wenshang extant numerous scenic spot and historic resort, the excavation northern Xin cultural remains site and the microlith was approximately 1 - 15,000. The temple of Confucian learning architectural complex builds in the Tang Dynasty, endures compares favorably with Qufu's Confucian temple.