文献类型：期刊文献

中文题名：毛乌素沙地风况及输沙势特征

英文题名：Characteristics of Wind Regime and Drift Potential in Mu Us Sandy Land

作者：庞营军[1] 吴波[1] 贾晓红[1] 石麟[2] 高达布希拉图[3] 李世忠[4]

第一作者：庞营军

机构：[1]中国林业科学研究院荒漠化研究所;[2]鄂尔多斯市林业治沙科学研究院;[3]内蒙古毛乌素沙地柏自然保护区;[4]乌审旗国家林木种苗基地

年份：2019

卷号：0

期号：1

起止页码：62-67

中文期刊名：中国沙漠

外文期刊名：Journal of Desert Research

收录：CSTPCD;;北大核心:【北大核心2017】；CSCD:【CSCD2019_2020】；

基金：国家重点研发计划课题(2016YFC0500801;2016YFC0500806);国家自然科学基金项目(41701010);中央级公益性科研院所基本科研业务费专项(CAFYBB2017ZE005)

语种：中文

中文关键词：毛乌素沙地;起沙风;输沙势

外文关键词：Mu Us Sandy Land;sand-driving wind;drift potential

分类号：P425.55

摘要：利用毛乌素沙地腹地野外实测风速风向数据,系统分析了毛乌素沙地的起沙风和输沙势的变化特征。结果表明:(1)毛乌素沙地的起沙风和输沙势主要分布在NW、NNW和N等3个方位。(2)毛乌素沙地春季(3—5月)起沙风频率和输沙势最大,分别占全年的46.23%和52.97%。(3)起沙风频率的日内变化呈单峰曲线:16:00起沙风频率最大,为22.11%。起沙风平均风速的日内变化呈双峰曲线:00:00起沙风平均风速最大,为7.84 m·s-1;14:00起沙风平均风速为7.63 m·s-1,是次峰值。(4)毛乌素沙地年输沙势为66.75 VU,按照Fryberger风能环境划分标准,属于低风能环境;方向变率指数RDP/DP为0.51,中比率,钝双峰风况,其中偏北峰值远大于偏南峰值。
Based on the field measured wind velocity and direction data in the hinterland of Mu Us Sandy Land,this paper systematically analyzed the variation characteristics of the sand-driving wind and drift potential in Mu Us Sandy Land. The results show that:( 1) The sand-driving wind and drift potential in Mu Us Sandy Land were mainly distributed in NW,NNW and N directions.( 2) The frequency of sand-driving wind and drift potential in Mu Us Sandy Land between April and May were the largest,accounted for 46.23% and 52.97% of the annual total,respectively.( 3) The diurnal variation of the sand-driving wind frequency was unimodal,and the peak value was 22.11% at 16:00. The diurnal variation of the average wind speed showed a bimodal curve: the peak value was7.84 m·s-1 at 00:00,and the secondary peak value was 7.63 m·s-1 at 14:00.( 4) The annual drift potential in Mu Us Sandy Land was 66.75 VU,which belonged to the low wind energy environment according to Fryberger’s categorization standard of wind energy environment. The RDP/DP was 0.51,which belonged to medium ratio and obtuse bimodal wind condition,and the north peak value was much stronger than the south peak value.