干旱区生态环境知识资源中心(Arid): 腾格里沙漠沙坡头地区旱季沙层含水量

Arid

	腾格里沙漠沙坡头地区旱季沙层含水量
其他题名	Soil Moisture Content in Sand Layers of Shapotou Area in Tengger Desert During Dry Season
	杨晓玉 1; 邵天杰 1; 赵景波 2
来源期刊	水土保持通报
ISSN	1000-288X
出版年	2016
卷号	36 期号:2 页码:88-92
中文摘要	[目的]研究腾格里沙漠沙坡头地区旱季沙层含水量、水分来源、水分存在形式、水分平衡等问题,为沙漠地区水分合理利用、沙漠化防治、沙地改良以及沙地农业生产提供科学依据。[方法]利用轻型人力钻打孔取样,进行水分测定。[结果]腾格里沙漠沙坡头地区旱季沙层平均含水量为1%~3%,一般具有分为3层的特点;沙层含水量存在明显的空间差异,洼地平均含水量最大,平坦高地和半固定沙丘中部含水量较低,流动沙丘中上部含水量最低;旱季时期沙层水分以薄膜水形式存在;研究区旱季沙层水分仍为正平衡,主要是由沙层的高入渗率和受蒸发影响深度小决定的;研究区有植被发育之处,在根系的吸水作用下沙层剖面中下部的含水量比无植被的剖面含水量低。[结论]研究区旱季沙层含水量低,空间差异较大,沙层水分仍保持正平衡状态。
英文摘要	[Objective]The moisture content was researched and the sources,forms and balance of soil moisture and other issues at dry season in Shapotou area of Tengger desert were discussed to provide scientific bases for reasonable water use,desertification control,sand amelioration and the increase of agricultural production.[Methods]Hole sampling was used by light drill,and the sand moisture was determined after that.[Results]The average moisture contents of sand layers were 1%to 3%at dry season in Shapotou area of Tengger desert,and generally could be divided into three differentiable layers.The spatial variation of moisture content of sand layers was very great.The low-lying land had the highest moisture content;while the flat plateau and the middle parts of semi-fixed dunes had relatively lower moisture content;and the upper or middle part of sand dunes had the lowest moisture content.The moisture at dry season in this area might exist in the form of film water.Benefited from rapid infiltration and insignificant influence of deep sand layers by evaporation,wherein a positive balance still existed.Affected by root absorption,the moisture contents of vegetational sand at middle and deep layers were lower than those of the area with no vegetation grew. [Conclusion]In Shapotou area,the moisture contents of sand layers were low and the spatial variation was significant,and they were balanced positively at dry season.
中文关键词	腾格里沙漠 ; 沙层含水量 ; 水分来源 ; 水分存在形式 ; 水分平衡
英文关键词	Tengger Desert moisture content in sand layers moisture sources moisture forms moisture balance
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ASTRONOMY ASTROPHYSICS
WOS研究方向	Astronomy & Astrophysics
CSCD记录号	CSCD:5694632
来源机构	陕西师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/234936
作者单位	1.陕西师范大学旅游与环境学院, 西安, 陕西 710119, 中国; 2.陕西师范大学旅游与环境学院, 陕西省灾害监测与模拟重点实验室, 西安, 陕西 710119, 中国
推荐引用方式 GB/T 7714	杨晓玉,邵天杰,赵景波. 腾格里沙漠沙坡头地区旱季沙层含水量[J]. 陕西师范大学,2016,36(2):88-92.
APA	杨晓玉,邵天杰,&赵景波.(2016).腾格里沙漠沙坡头地区旱季沙层含水量.水土保持通报,36(2),88-92.
MLA	杨晓玉,et al."腾格里沙漠沙坡头地区旱季沙层含水量".水土保持通报 36.2(2016):88-92.