干旱区生态环境知识资源中心(Arid): 沙质草原灌丛沙堆研究综述

Arid

	沙质草原灌丛沙堆研究综述
其他题名	Studies on Sandy Grassland Nebkhas-A Review
	岳兴玲; 哈斯; 庄燕美; 张军
来源期刊	中国沙漠
ISSN	1000-694X
出版年	2005
卷号	25 期号:5 页码:738-743
中文摘要	灌丛沙堆是干旱、半干旱及半湿润荒漠地区风沙流遇到灌丛阻拦而堆积形成的一种地貌形态.普遍的研究表明灌丛沙堆是伴随人类不合理的土地利用和环境的变化而出现,是土壤风蚀和土地退化的标志,也是沙漠化的一种表现形式.灌丛沙堆在我国分布范围很广,但目前研究还不够深入.笔者主要阐述了国内外对灌丛沙堆形态、沉积物、演变及其环境意义等几个方面研究所取得的进展及其存在的争议,并提出了灌丛沙堆研究的发展趋势,以期引起国内对灌丛沙堆研究的关注.
英文摘要	Nebkhas commonly distributed in arid and semi-arid areas, are mounds composed of wind-borne sediment that traped by shrubs. Studies on nebkhas morphology, sediment, ecology and process are re-viewed since 1980s in this paper. There are many factors (such as arid climate, high wind, sand source, bush form, grazing pressure, land-use histories and geomorphologic setting) controlling the development and growth of nebkhas. Nabkha dune sediments are sandier and better sorted than the interdune sediments; sediments are largely locally derived from nearby areas such as interdunes, and are greatly enriched in avail-able inorganic nutrients. Feedbacks with the bush canopy and materials transited from sand sources are the possible causes of the enrichment. The nebkhas have developed as a consequence of climatic change and an-thropogenic stresses on the arid ecosystem and are linked to ecological change within the region, so nebkhas have been regarded as a good indicator of aeolian erosion and land degradation. Nebkhas are extensive dis-tributed in China, but little attention is put to it. The author also brings up his own opinions and further ori-entations of nebkhas research and looks forward to attracting the domestic attention to nebkhas.
中文关键词	灌丛沙堆 ; 风蚀 ; 土地退化 ; 沃岛
英文关键词	nebkhas wind erosion land degradation fertile island
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:2077242
来源机构	北京师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/207014
作者单位	北京师范大学,中国沙漠研究中心, 环境演变与自然灾害教育部重点实验室, 北京 100875, 中国
推荐引用方式 GB/T 7714	岳兴玲,哈斯,庄燕美,等. 沙质草原灌丛沙堆研究综述[J]. 北京师范大学,2005,25(5):738-743.
APA	岳兴玲,哈斯,庄燕美,&张军.(2005).沙质草原灌丛沙堆研究综述.中国沙漠,25(5),738-743.
MLA	岳兴玲,et al."沙质草原灌丛沙堆研究综述".中国沙漠 25.5(2005):738-743.