[1]吴汪洋,张登山,田丽慧,等.青海湖沙地人工治理沙丘的风速廓线变化特征[J].水土保持研究,2013,20(06):162-167.
　WU Wang-yang,ZHANG Deng-shan,TIAN Li-hui,et al.Variable Characteristics of Wind Profile of the Artificial Sand Dune in Sandy Land around the Qinghai Lake[J].Research of Soil and Water Conservation,2013,20(06):162-167.
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青海湖沙地人工治理沙丘的风速廓线变化特征

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 20 期数: 2013年06期 页码: 162-167 栏目: 出版日期: 2013-12-28
Title:
Variable Characteristics of Wind Profile of the Artificial Sand Dune in Sandy Land around the Qinghai Lake
作者:
吴汪洋1, 张登山1,2, 田丽慧1, 赵超1, 贾飞飞1
1. 北京师范大学 环境演变与自然灾害教育部重点实验室, 北京 100875;
2. 青海省农林科学院, 西宁 810016
Author(s):
WU Wang-yang1, ZHANG Deng-shan1,2, TIAN Li-hui1, ZHAO Chao1, JIA Fei-fei1
1. Key Laboratory of Environmental Change and Natural Disaster, Ministry of Education, Beijing Normal University, Beijing 100875, China;
2. Qinghai Academy of Agriculture and Forestry Sciences, Xi’ning 810016, China
关键词:
风速廓线; 人工治理沙丘; 风速增加率; 防风固沙
Keywords:
wind profile; artificial sand dune; wind speed increase rate; wind prevention and sand fixation
分类号:
P931.3
摘要:
对青海湖湖东沙地麦草方格沙障结合沙棘实生苗的人工治理沙丘进行风速廓线及其风沙防护效益研究，结果表明，人工治理措施明显降低了沙丘各部位的近地层风速，增强了高层风速。与流动沙丘相比，垂向风速增加率的差异使人工治理沙丘不同部位的超越高度值出现“坡脚 > 坡中 > 丘顶”的规律。风速垂向气流的变异导致不同高度层的防风固沙效果不同，低层风沙防护效益显著高于中、高层。同时结合坡度，植被盖度等因子，分析了影响风速廓线的变化原因，从而为青海湖沙地人工治理效果进行评估与初步指导。
Abstract:
Through the study of wind profile and sand flow in the sand area of the eastern shore of Qignhai Lake, which the technique of straw-checkerboard combining with sea-buckthorn seeding is experimented and promoted, it can be found that the low layers wind speed decreased obviously while high layers got increased in each position of artificial sand dune compared with the mobile dune. This is mainly due to the vertical change rates of the wind speed. Moreover, there is a surpass height which is higher at the foot of the slope and lower at the top between the artificial and mobile sand dunes, which leads to the better effects of wind prevention and sand fixation in the surface layer. Besides the difference of sand dune gradient, vegetation coverage and the average sand grain size have effects on the change of the wind profile. These results above will make a preliminary evaluation and provide basic guide to the management of desertification around the Qinghai Lake.

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备注/Memo

收稿日期:2013-03-10;改回日期:2013-04-10。
基金项目:公益性行业（林业）科研专项项目（201004025）；国家自然科学基金项目（41171159）
作者简介:吴汪洋(1988-),湖北咸宁人,男,硕士,研究方向:水土保持与荒漠化防治。E-mail:bnuwwy@yeah.net

更新日期/Last Update: 1900-01-01