Hows the environment around Yangtze River?
In 2007 fears were expressed that China’s Finless Porpoise, known locally as the jiangzhu or’river pig’ might follow the baiji, the Yangtze river dolphin, into extinction. The baiji was declared functionally extinct in 2006. Calls have been made for action to be taken to save the porpoise, of which there are about 1400 left living, with between 700 and 900 in the Yangtze, with about another 500 in Poyang and Dongting Lakes. 2007 population levels are less than half the 1997 levels, and the population is dropping at a rate of 7.3 percent per year. Heavy river traffic on the Yangtze has driven the porpoise into the lakes. On Poyang Lake, the largest freshwater lake in China, sand dredging has become a mainstay of local economical development in the last few years, and is an important source of revenue in the region that border it. But at the same time, high-density dredging projects have been the principal cause of the death of the local wildlife population. Dredging makes the waters of
