The middle the middle and upper reaches of the Yel

The middle the middle and upper reaches of the Yellow River

Changjiang River middle lower reaches

historical floods in the middle reaches of the Yan

human activity in the middle reaches

In the middle reaches of Hanjiang River

irrigation districts along the lower reaches of the Yellow River

lower and middle reaches of the Tarim River

lower reaches of the Tarim River

mainstream of the Tarim River

Middle and lower reaches of the Tarim River

middle reaches of the Tarim River

Rainfall in the lower reaches of the Yangtze River

Sandy soil along the lower reaches of Yangtze River

summer rainfall over the middle reaches of the Yangtze River

the flood disaster in the lower reaches of Yellow River

The lower reaches of Changjiang and Huaihe Rivers

the lower reaches of Heihe River

the lower reaches of Jinsha River