摘要
依据石嘴山和巴彦高勒水文站的输沙特性以及磴口站的水位变化,对乌兰布和沙漠风沙入黄量进行了评估,并基于沙漠风沙综合观测基地的长系列观测数据,计算了2013—2016年的风沙入黄量为53.78万~158.92万t/a;根据年平均风速估算了1954年以来的风沙入黄量过程,并设定未来情景模式,计算了2017—2036年的风沙入黄量。2014—2016年为1954年以来沙漠风沙入黄量的最小时期,在设定情景下,2017—2036年风沙入黄量仍有超过400万t的年份。随着沙漠治理力度的加大,2031—2036年风沙入黄量将下降至262.45万t/a。
This paper estimated theaeolian sand amount into the Yellow River from Ulanbuh Desert by the characteristics of sediment transport in Shizuishan and Bayangaole hydrological stations and the variation of water level in Dengkou Hydrological Station.The aeolian sand into the river during 2013-2016 was calculated based on the field measured data and the evolution processes of the aeolian sand since 1954 were evaluated according to the ratio of average annual wind speed in each year to the wind speed in 2013.There were 0.537 8-1.589 2 million tons aeolian sand into the Yellow River during 2013-2016,and the aiolian sand amount during 2014-2016 was the lowest since 1954.The future scenario was set to estimate the aeolian sand during 2017-2036.The aeolian sand more than 4 million tons into the river are still possible during 2017-2036.The aeolian sand into the river will be reduced to 2.624 5 million tons with the change of land use along the river during 2031-2036.
出处
《人民黄河》
CAS
北大核心
2017年第7期65-70,共6页
Yellow River
基金
国家自然科学基金资助项目(51409114
41301303)
水利部公益性行业科研专项(201401084)
