文献类型：期刊文献

中文题名：乌兰布和沙漠东北部近地层沙尘水平通量和降尘量变化特征分析

英文题名：Variation Characteristics Analysis of Near-Surface Dust Horizontal Flux and Dust Fall Amount in Northeast of Ulan Buh Desert

作者：罗凤敏[1] 高君亮[1] 刘芳[1] 李新乐[1] 黄雅茹[1] 葛根巴图[1] 段瑞兵[1] 辛智鸣[1]

第一作者：罗凤敏

机构：[1]中国林业科学研究院沙漠林业实验中心内蒙古磴口荒漠生态系统国家定位观测研究站,内蒙古巴彦淖尔015200

年份：2019

卷号：21

期号：2

起止页码：163-169

中文期刊名：中国农业科技导报

外文期刊名：Journal of Agricultural Science and Technology

收录：CSTPCD;;北大核心:【北大核心2017】；CSCD:【CSCD_E2019_2020】；

基金：中央级公益性科研院所基本科研业务费专项(CAFYBB2016MB003);内蒙古磴口荒漠生态系统国家定位观测研究站运行补助项目(2018-LYPT-DW-140)资助

语种：中文

中文关键词：地表;沙尘水平通量;降尘量;乌兰布和荒漠生态系统

外文关键词：surface layer;horizontal sand-dust flux;dust fall amount;Ulan Buh desert ecosystem

分类号：P425.55

摘要：研究沙尘随高度的变化特征对揭示沙尘物质在近地层分布特征具有重要意义。通过收集乌兰布和沙漠东北部近地层50 m沙尘水平通量和降尘量数据,研究了该区域防护林对沙尘水平和垂直通量变化特征的影响。结果表明:(1)沙尘水平通量及降尘量均随高度的增加而减小,防护林内二者与高度的关系符合幂函数,防护林外二者与高度的关系符合指数函数;(2)沙尘水平通量与降尘量之间为正相关关系,二者可用线性函数表示;(3)沙尘水平通量和降尘量均与风速呈现线性关系。
It is of great significance to study the characteristics of sand-dust varied with height for revealing the distribution traits of sand-dust in the surface layer. This paper collected data of horizontal sand-dust fulx and dust fall amount from the dust observation tower within the height of 50 m,located in the northeast of Ulan Buh Desert;and studied the effect of regional protection forest on change features of sand-dust horizontal and vertical flux. The results indicated that:(1) Both horizontal sand-dust flux and dust fall amount decreased along with the height increasing. The distribution characteristics of horizontal dust flux and dust fall amount with height accorded with power function inside of the shelterbelt,and the distribution characteristics of them accorded with exponential function outside of the shelterbelt.(2) The horizontal dust flux and dust fall amount were positively correlated. They could be presented by linear functions.(3) Both horizontal dust flux and dust fall amount with wind speed presented a linear relationship.