major source area of the coarse sediment
coarse sediment source of Yellow River
Rich and Coarse Sediment Area
sandy and coarse sediment area
heavy and coarse sediment load area
abundant and coarse sediment area
area with abundant and coarse sediment
Coarse Sediment Concentrated Region
diverting the coarse sediment
areas with sand and coarse sediment
AREAS WITH HIGH AND COARSE SEDIMENT YIELD
abundant and coarse sediment area of north Shaanxi
deposit coarse sediment and release fine sediment
coarse and overburden sediment area
the tributaries of the sediment rich area with much coarse sand