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乌江发源于乌蒙山东麓,古代叫延江或黔江。流经贵州、四川两省,于四川涪陵注入长江,全长1050公里。乌江流域大部分是石灰岩地带,风雨侵蚀。使两岸岩石不断风化崩塌,礁石密布,沙碛横出,险滩连绵不断。仅从上游的乌江渡到中游的龚滩地,约405公里的航段,就有大小险滩855处。更有号称三大滩王的潮砥滩、新滩、龚滩。江心怪石磷(日旬),大如楼房,急流冲击巨石发出震耳欲聋的响声。另外,由于山区地形所致,使得乌江河道弯曲、深浅悬殊。有的航段岩石陡峭,犹如刀砍斧削;有的两岸荆棘丛生,无路可寻。悬崖绝壁地段占整个河流长度的百分之五
Wujiang originated in Wumeng Mountain, ancient called Yanjiang or Qianjiang. It flows through Guizhou and Sichuan provinces and into the Yangtze River in Fuling, Sichuan Province, with a total length of 1,050 km. Most of the Wujiang River Basin is limestone zone, wind and rain erosion. So that both sides of the rock continue to weather and collapse, reefs covered, sand moraine across the endless rapids. Only from the upper reaches of the Wujiang River to the middle reaches of the Gong Tan Beach, about 405 km of the leg, there are the size of 855 dangerous rapids. More known as the three major beach Tide Beach, New Beach, Gong Beach. River heart rock phosphorus (day), as big as buildings, impulsive impact boulder issued a deafening noise. In addition, due to the terrain in the mountains, making the Wujiang River bend, depth disparity. Some sections of the rock steep, like ax cut ax; some twists and turns of the clumps, there is no way to find. Cliffs and cliffs account for 5% of the total river length