Characteristics of Sediment Transport and Dynamical Environments in Desert-Oasis,Qira County
In this study,the differences of sediment transport between desert and oasis were studied based on the observation data during 9 April to 9 May 2014.Meanwhile,the dynamical environments of desert and oasis were analyzed,so as to provide a reasonable explanation of differences of sediment transport between desert and oasis.Some preliminary conclusions as follows :(1) During observation period,the amount of dust that passed through a section of 100 cm in width and 200 cm in height was 117.5 kg in the desert,and 15.1 kg in the oasis.And the dust flux in the oasis was 87.1% less than that in the desert.(2)The desert transitional zone and wind break forest significantly reduced the wind speed,and the occurrence time of sand-driving wind was 97.4h in the desert,and 18.9h in the oasis during observation period.(3)During observation period,the drift sand potential and resultant sand drift potential were 114.2VU,16.1VU and 72.8VU,15.1VU, respectively.And the drift sand potential and resultant sand drift potential in the oasis were 85.9%and 79.3% less than that in the desert.This indicated that the desert transitional zone and wind break forest significantly reduced the intensity of sediment transport.
sediment dischargesand-driving windsand drift potentialQira County
国家科技期刊平台
NSTL
万方数据
维普
