干旱区生态环境知识资源中心(Arid): 沙坡头地区地形对凝结水形成特征的影响

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	沙坡头地区地形对凝结水形成特征的影响
其他题名	Influence of Topography on Formation Characteristics of Hygroscopic and Condensate Water in Shapotou, Ningxia, China
	潘颜霞; 王新平; 张亚峰; 虎瑞
来源期刊	中国沙漠
ISSN	1000-694X
出版年	2014
卷号	34 期号:1 页码:118-124
中文摘要	以沙坡头地区经草方格沙障固定的典型流动沙丘作为研究对象,采用PVC管手动称重法和布板法(CPMCloth-Plate Method)对该区不同地形位置凝结水的形成特征进行了研究。结果表明:地形作用下凝结水的形成量和形成间期均表现为中等空间异质性;不同坡向凝结水形成量符合经典的水汽对流模型,丘间低地凝结水形成量最高,迎风坡凝结水形成量高于背风坡,具体表现为:丘间低地>西面向坡>北面向坡>丘顶>南面向坡>东面向坡;同一坡向不同坡位处凝结水形成量表现为:坡脚>坡中>坡顶;坡度与凝结水形成量呈负的线性相关关系,随着坡度的增加,凝结水形成量逐渐减少,垂直坡面上凝结水形成量仅为水平面的一半。这说明地形是影响干旱区凝结水形成特征的重要因子。
英文摘要	The formation characteristics of hygroscopic and condensate water for different topographic positions were observed using the PVC pipes manual weighing and CPM method in the typical mobile dunes fixed by straw checkerboard barriers in Shapotou, Ningxia, China. The results indicated that the formation amounts and duration of hygroscopic and condensate water showed moderate spatial heterogeneity at the influence of topography. The formation amounts of hygroscopic and condensate water at different aspects conformed to the classical convection model, in which the hygroscopic and condensate water amounts were the highest at hollow, and windward aspect got more water than leeward aspect, the hygroscopic and condensate water amounts at different aspects were expressed as: hollow>western-faced aspect>northern-faced aspect >hilltop>southern-faced aspect>eastern-faced aspect. The hygroscopic and condensate water amounts at different slope positions for every aspect were as follows: the foot of slope>middle slope>hilltop. A negatively linear correlation was got between slope angles and hygroscopic and condensate water amounts, hygroscopic and condensate water amounts decrease gradually along with the increase of slope angles, the amounts of hygroscopic and condensate water at the vertical aspect were only half of horizontal aspect, which indicated topography were important influence factors for the formation of the hygroscopic and condensate water in arid area.
中文关键词	凝结水 ; 高程 ; 坡度 ; 坡向 ; 坡位
英文关键词	hygroscopic and condensate water elevation slope angle aspect slope position
语种	中文
国家	中国
收录类别	CSCD
WOS类目	METEOROLOGY ATMOSPHERIC SCIENCES
WOS研究方向	Meteorology & Atmospheric Sciences
CSCD记录号	CSCD:5049241
来源机构	中国科学院西北生态环境资源研究院
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/232140
作者单位	中国科学院寒区旱区环境与工程研究所沙坡头沙漠试验研究站, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	潘颜霞,王新平,张亚峰,等. 沙坡头地区地形对凝结水形成特征的影响[J]. 中国科学院西北生态环境资源研究院,2014,34(1):118-124.
APA	潘颜霞,王新平,张亚峰,&虎瑞.(2014).沙坡头地区地形对凝结水形成特征的影响.中国沙漠,34(1),118-124.
MLA	潘颜霞,et al."沙坡头地区地形对凝结水形成特征的影响".中国沙漠 34.1(2014):118-124.