干旱区生态环境知识资源中心(Arid): 基于野外观测的风沙流跃移和蠕移运动规律研究

Arid

	基于野外观测的风沙流跃移和蠕移运动规律研究
其他题名	Research on saltation and creeping laws of wind-blown currents based on field observations
	康永德; 何清; 杨兴华; 杨帆; 艾力·买买提明; 霍文
来源期刊	干旱区资源与环境
ISSN	1003-7578
出版年	2017
卷号	31 期号:5 页码:119-125
中文摘要	利用H11-sensit风蚀传感器、风速仪、微梯度集沙仪,于2014.7 ~ 2014.8在塔克拉玛干沙漠腹地塔中地区进行了风沙流跃移和蠕移运动连续观测试验,分析了该区域典型天气和不同风速下跃移、蠕移运动的规律。结果表明: (1) 85mm高度范围内,随风速的增加,跃移量/蠕移量之比呈负幂数函数下降,最终趋于稳定,当风速在8.5m·s~(-1)左右时,跃移量/蠕移量之比约为8 ~ 10; (2)风速达到6.9m·s~(-1)时,总跃移量最大值为1952.01g;风速达到7.6m·s~(-1)时,总蠕移量最大值为211.79g。(3)总跃移量和总蠕移量的比值随风速的增加呈指数递减,典型天气过程中不同风速下的总跃移量和总蠕移量比值约为8 ~ 24。
英文摘要	We made continuous observation and experiments for the sand flow saltation movement and creep movement in Tazhong district in the Taklamakan Desert hinterland and analyzed the movement rules in the conditions of the different wind velocity in the typical weather. The experiments were done by using H11-sensit wind sensor,anemometer,and micro-gradient sand sampler from July to August in 2014. The results showed that: (1) With the increase of wind velocity,the raio of the amount of saltation movement to the amount of creep movement dropt with the negatively exponential function,then eventually to be stable; while the ratio was about 8 ~ 10 when the wind velocity was about 8.5m·s~(-1) in the range of 85 mm in height. (2) The maximum of the whole amount of saltation movement was 1952.01g when the wind speed was at 6.9m·s~(-1),and the maximum of the whole amount of creep movement was 211.79g when the wind velocity was at 7.6m·s~(-1). (3) The ratio of the total amount of saltation movement to the total amount of creep movement was exponentially decreased with the increase of wind speed. The ratio of the whole amount of saltation movement to and the whole amount of creep movement was about 8 ~ 24 under different wind speed in the process of typical weather.
中文关键词	微梯度 ; 风沙流 ; 跃移 ; 蠕移 ; 塔克拉玛干沙漠
英文关键词	micro-gradient aeolian sand transport saltation creep Taklimakan Desert
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENVIRONMENTAL SCIENCES
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:5960955
来源机构	中国气象局乌鲁木齐沙漠气象研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/236056
作者单位	中国气象局乌鲁木齐沙漠气象研究所, 乌鲁木齐, 新疆 830002, 中国
推荐引用方式 GB/T 7714	康永德,何清,杨兴华,等. 基于野外观测的风沙流跃移和蠕移运动规律研究[J]. 中国气象局乌鲁木齐沙漠气象研究所,2017,31(5):119-125.
APA	康永德,何清,杨兴华,杨帆,艾力·买买提明,&霍文.(2017).基于野外观测的风沙流跃移和蠕移运动规律研究.干旱区资源与环境,31(5),119-125.
MLA	康永德,et al."基于野外观测的风沙流跃移和蠕移运动规律研究".干旱区资源与环境 31.5(2017):119-125.