干旱区生态环境知识资源中心(Arid): 甘肃河西绿洲边缘积沙带所表征的气候环境信息

Arid

	甘肃河西绿洲边缘积沙带所表征的气候环境信息
其他题名	Climate and Environment Information from Sand Accumulation Belt in Oasis Marginal Zone in the Hexi Corridor,Gansu Province
	刘世增; 常兆丰; 张剑挥; 唐进年; 王强强; 张大彪; 朱淑娟; 张国中; 樊宝丽
来源期刊	干旱区研究
ISSN	1001-4675
出版年	2013
卷号	30 期号:2 页码:364-371
中文摘要	绿洲边缘积沙带的研究是一个新的科学问题。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。为了研究积沙带的形成和发育与气候环境因子之间的关系, 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。结果表明:①年降水量是决定积沙带高度和宽度的关键因子;②降水量是决定植被盖度的关键因子, 降水对天然植被盖度的影响大于对包括人工植被在内的植被总盖度的影响, 随着降水增加, 背风坡植被盖度增加幅度大于迎风坡;③积沙带不同样点之间植被盖度的差异主要是由植株个体大小引起的, 亦即降水对植株个体大小的影响大于对植株密度的影响。
英文摘要	Formation of sand accumulation belt in oasis marginal zone is one of the new scientific issues. A sand accumulation belt was formed in oasis marginal zone in the Hexi Corridor, Gansu Province after implementing the project of desertification control in recent 50 years. In order to study the relationships between the causes resulting in the formation of sand accumulation belt and the climatic and environmental factors, the sand accumulation belt in the oasis marginal zone was investigated from the eastern part to the central and western parts of the corridor. The results were as follows: (1)Annual precipitation was the key factor affecting the height and width of sand accumulation belt; (2)Climate and environment information was demonstrated by the vegetation, and precipitation was the key factor affecting the vegetation coverage. The effect of precipitation on the natural vegetation coverage was higher than on the total vegetation coverage including artificial vegetation. With the increase of precipitation, vegetation coverage of leeward slope was higher than that of windward slope; (3)Difference of vegetation coverage among the sample sites was mainly caused by the size of plants, that is, the effect of precipitation on plant size was higher than that on plant density.
中文关键词	绿洲边缘 ; 积沙带 ; 植被盖度 ; 降水量 ; 气候环境信息 ; 河西地区 ; 甘肃
英文关键词	oasis marginal zone sand accumulation belt vegetation coverage precipitation climate and environment information Hexi Corridor Gansu
语种	中文
国家	中国
收录类别	CSCD
WOS类目	GEOSCIENCES MULTIDISCIPLINARY
WOS研究方向	Geology
CSCD记录号	CSCD:4788445
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/2XILL650/229574
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科学观测研究站, 兰州, 甘肃 730070, 中国
推荐引用方式 GB/T 7714	刘世增,常兆丰,张剑挥,等. 甘肃河西绿洲边缘积沙带所表征的气候环境信息[J]. 甘肃省治沙研究所,2013,30(2):364-371.
APA	刘世增.,常兆丰.,张剑挥.,唐进年.,王强强.,...&樊宝丽.(2013).甘肃河西绿洲边缘积沙带所表征的气候环境信息.干旱区研究,30(2),364-371.
MLA	刘世增,et al."甘肃河西绿洲边缘积沙带所表征的气候环境信息".干旱区研究 30.2(2013):364-371.