Studty on spatio-iemporal distribution characteristics of river sediment in Anhui Province
The spatio-temporal distribution patterns of sediment in five geomorphic areas within the province are analyzed.The results show that the main sediment transport in the plain area of northern Anhui is distributed in the main stream of the Huai River,and the sediment concentration and transport in the main stream of the Huai River show a gradually increasing trend from upstream to downstream;the sand content in the Jianghuai hilly area is average;the sediment concentration and sediment transport modulus are the highest in the moun-tainous area of western Anhui;the sediment content in the plain area along the river is not high,but due to the large runoff,the sediment transport is large;the mountainous areas in southern Anhui have good vegetation,high forest coverage,and the minimum sediment concentration and sediment transport modulus;the overall characteristic is significant interannual variation and a significant decrease in sediment volume;the distribution within the year is mainly concentrated during the flood season.
spatial distributiontime distributionsand contentsediment transport capacitysediment trans-port modulusevolutionary analysis
NETL
NSTL
万方数据
