摘要
The Yangtze River is one of the largest and longest rivers in Asia.The river originates in the Tibet-Qinghai Plateau(headwater reach),passes through the mountainous provinces of Sichuan,Yunnan and Chongqing(upper reach),flows into the Central Plain(middle reach)and Lower Plain(lower reach),and finally empties into the East China Sea in Shanghai(estuary).The Yangtze River Economic Belt(YREB;Fig.1)has a surface area of 2.1
The Yangtze River is one of the largest and longest rivers in Asia. The river originates in the Tibet-Qinghai Plateau （headwater reach）, passes through the mountainous provinces of Sichuan,
基金
partially funded by Chinese Academy of Sciences (Y62302,Y45Z04,Y55Z06,and Y62Z17)
World Wide Fund for Nature (Y56002 and Y63Z08)
作者简介
Corresponding author. E-mail address： yushunchen@ihb.ac.cn （Y. Chen）.
