Root is in the sediment

The yellow river suffers from, root is in the sediment;The sediment harms, disaster source thick sand.According to understand, the yellow river thick sediment concentration source area involves a Yu wood of Shaanxi province and postpones Anne two the mansion valley governed by cities, divine tree, Yu sun, good county, virtuous Sui, rice fat etc. is 12 counties(area), the total area is 14,000 square kilometers, have thick sediment of the whole yellow river river valley concentration source area 74.7% of the total area, among them, Yu market wood accumulates 13,400 square kilometers and have thick sediment in Shaanxi province the concentration source area 95.7% of the area, postpone Anne to accumulate 602 square kilometers on market, have 4.3%.Yellow river the thick sediment concentrate source area the year produce amount of sand to reach to more than 300,000,000 tons, is a loess plateau mightiness erosion the center is also the important plan source of the thick yellow river sediment ground.