The middle the middle and upper reaches of the Yel
The middle the middle and upper reaches of the Yellow River
the summer rainfall in the Jianghuai area
historical floods in the middle reaches of the Yan
human activity in the middle reaches
In the middle reaches of Hanjiang River
the middle reaches of Changjiang River
the middle reaches of Han River
the middle reaches of Hanjiang River
The middle reaches of Heihe river
The middle reaches of Qingjiang river
The middle reaches of Qinhe River area
The middle reaches of the Heihe River
the middle reaches of the Huaihe River
the middle reaches of the Tarim River
The middle reaches of the Yangtze River
the middle reaches of the Yeerqiang River
the middle reaches of the Yellow River
the middle reaches of Yangtze river