干旱区生态环境知识资源中心(Arid): 河西绿洲边缘积沙带的成因初探

Arid

	河西绿洲边缘积沙带的成因初探
其他题名	Formation causes of accumulated sand-belt in the Hexi oasis edge
	常兆丰; 刘世增; 唐进年; 张剑挥; 王强强; 张大彪; 朱淑娟; 樊宝丽; 张国中
来源期刊	干旱区资源与环境
ISSN	1003-7578
出版年	2014
卷号	28 期号:5 页码:60-66
中文摘要	甘肃河西地区经过半个多世纪的防沙治沙,在绿洲边缘形成了一条积沙带。绿洲边缘积沙带是一个新的科学问题。为了研究积沙带的形成及其与环境因子的关系,文中对河西走廊东端至走廊中西部绿洲边缘的积沙带进行了调查,运用SPSS软件进行了统计分析。结果表明:1)河西走廊东端至中西部绿洲边缘积沙带平均高12.77m,平均带宽308.48m。2)积沙带形成的沙源因素是其上风向主风方向经过沙漠的距离;积沙带形成的气候因素是年降水和年平均风速;3)积沙带的高度和宽度与其上的天然植被盖度为极显著正相关关系,但与包括人工植被的植被总盖度相关不显著。4)降水条件是决定积沙带高度的关键因子。降水通过改变土壤水分条件从而影响植被盖度,进而影响积沙带的发育。
英文摘要	An accumulated sand-belt along the oasis fringe in Hexi region was formed as a result of desert control efforts in almost 50 years. Formation of the accumulated sand-belt along the oasis fringe is a new scientific concern. In this paper we studied the accumulated sand-belt along the oasis fringe from the east to the middle and west of Hexi corridor. The results indicted that: (1) The average height of the accumulated sand-belt along the oasis fringe from the east to the middle and west of Hexi corridor is 12. 77 m,and the average width is 308. 48 m. (2) Sand factor is the distance of wind through the desert in the main wind direction with the formation of accumulated sand-belt. Climatic factors are annual precipitation and annual average wind speed for the formation of accumulated sand-belt. (3) They are significantly positive correlation between the height,width and its natural vegetation cover of sand-accumulation belt,but they are not significant between the height, width and its the total vegetation cover(including artificial vegetation) of sand-accumulation belt. (4) Rainfall is the key factor deciding the height of the belt. Precipitation affect the vegetation cover by changing soil moisture conditions and thereby affecting the development of accumulated sand-belt.
中文关键词	绿洲边缘 ; 积沙带 ; 成因 ; 甘肃河西
英文关键词	oasis fringe accumulated sand-belt causes Hexi region in Gansu
语种	中文
国家	中国
收录类别	CSCD
WOS类目	FORESTRY ; ENVIRONMENTAL SCIENCES
WOS研究方向	Forestry ; Environmental Sciences & Ecology
CSCD记录号	CSCD:5117557
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/2XILL650/231220
作者单位	甘肃省治沙研究所, 甘肃省荒漠化防治重点实验室;;甘肃民勤荒漠草地生态系统国家野外观测研究站, 兰州, 甘肃 730070, 中国
推荐引用方式 GB/T 7714	常兆丰,刘世增,唐进年,等. 河西绿洲边缘积沙带的成因初探[J]. 甘肃省治沙研究所,2014,28(5):60-66.
APA	常兆丰.,刘世增.,唐进年.,张剑挥.,王强强.,...&张国中.(2014).河西绿洲边缘积沙带的成因初探.干旱区资源与环境,28(5),60-66.
MLA	常兆丰,et al."河西绿洲边缘积沙带的成因初探".干旱区资源与环境 28.5(2014):60-66.