干旱区生态环境知识资源中心(Arid): 集沙仪开发研究现状、问题及突破点

Arid

	集沙仪开发研究现状、问题及突破点
其他题名	Current situation,problems and breakthroughs of development and research of sand sampler
	常兆丰1 ; 赵建林 2; 刘世增 1; 王祺 1; 孙涛 1
来源期刊	生态学杂志
ISSN	1000-4890
出版年	2018
卷号	37 期号:9 页码:2834-2839
中文摘要	输沙(尘)量观测是沙漠化监测、沙尘暴和风沙流研究以及土地风蚀沙化研究的主要内容之一,也是干旱沙漠化地区生态环境观测研究的重要手段之一。集沙仪是其监测必不可少的重要工具之一。目前,开发研制的集沙仪不少,但至今没有统一的观测标准和准确有效的观测仪器。国外用光学颗粒流传感器和等动力方法检验集沙仪的集沙效率,结果表明,集沙仪的集沙效率低于70%。中国多采用风洞测验集沙仪的集沙效率,检验结果为72%~89%。集沙仪开发的难点是难以使得集沙仪管内气流速度等于外界风速,突破点是研制出管内气流流速等于外界风速的集沙仪。主动式集沙仪可解决这一问题。然而,由于需要动力等原因,而未真正进入应用。需要制订统一的观测标准,提高集沙仪开发研制质量和观测质量。这样,才能揭示沙尘暴、风沙流的真实情况,也便于纵向和横向对比分析,有效推进沙漠化和沙尘暴研究的进程。
英文摘要	The observation of sand transportation flux is one of the main tasks in desertification monitoring,the research on sandstorm,aeolian sand flux and wind erosion. It is also one of the measures for eco-environment monitoring in arid desertified lands,with sand sampler being one of the main instruments. At present,there are many kinds of sand samplers. However,there are no observational standards and instruments for precise observation. In abroad,the collecting efficiency of sand samplers,as tested by the optical particle flow sensor and the isokinetic method,was below 70%. In China,the sand collecting efficiency of sand sampler was tested in the wind tunnel, and the collecting efficiency was 72%-89%. The bottleneck of developing sand sampler is how to make the velocity of the air flow in the sand sampler be equal to that in the field. The breakthrough is to invent sand sampler with the flow velocity inside being equal to that in the field. The active sand sampler is able to solve this problem. However,this kind of sand sampler is not yet applied due to power problems. It is needed to formulate a unified observation standard to improve the precise observation of sand samplers. Such an improvement will facilitate the examination of the real situation of sandstorm and aeolian sand flow,the comparison and analyzation of vertical and horizontal sand flow,and the promotion of research on desertification and sandstorm.
中文关键词	集沙仪 ; 开发研究 ; 现状 ; 问题 ; 突破点
英文关键词	sand sampler development and research existing situation problem breakthrough
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURAL ENGINEERING
WOS研究方向	Agriculture
CSCD记录号	CSCD:6328569
来源机构	甘肃省治沙研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/238201
作者单位	1.甘肃省治沙研究所, 兰州, 甘肃 730070, 中国; 2.甘肃省景泰川电力提灌管理局, 景泰, 甘肃 730400, 中国
推荐引用方式 GB/T 7714	常兆丰,赵建林,刘世增,等. 集沙仪开发研究现状、问题及突破点[J]. 甘肃省治沙研究所,2018,37(9):2834-2839.
APA	常兆丰,赵建林,刘世增,王祺,&孙涛.(2018).集沙仪开发研究现状、问题及突破点.生态学杂志,37(9),2834-2839.
MLA	常兆丰,et al."集沙仪开发研究现状、问题及突破点".生态学杂志 37.9(2018):2834-2839.