Table 1. Hydrological Settings of the Changjiang: Mainstream and Major Tributariesa										
	Mainstream		Tributary							
			Upper		Middle/Lower					
	Upper (Above Yichang)	Middle (Yichang-Hukou)	Lower (Hukou)		Jinshajiang	Minjiang	Jialingjiang	Wujing		Hanjing
Length, km	4,500	950	930		2,284	735	1,120	1,037		1,577
Basin area, km2	1,000,000	680,000	120,000		344,000	133,000	160,000	87,920		159,000
Gauging station	Yichang	Hankou	Datong		Pinshan	Gaochang	Beibei	Wulong		Huangzhuang
Q, km3/yr	440	710	910		150	90	65	50		50
Qs, mt/yr	500	400	430		240	50	110	28		60
aAnnual water discharge (Q) and sediment load (Qs) are the averages between the 1950s and 2002. The figures for Huangzhuang are from IRTCES [2003].