干旱区生态环境知识资源中心(Arid): 科尔沁沙地沙丘植被发育过程及物种组成变化

Arid

	科尔沁沙地沙丘植被发育过程及物种组成变化
其他题名	Development Process of the Vegetation and the Change ofSpecies Composition in the Horqin Sandland
	张继义; 赵哈林; 崔建垣; 李玉霖; 杨甲定
来源期刊	干旱区研究
ISSN	1001-4675
出版年	2004
卷号	21 期号:1 页码:72-75
中文摘要	以处于流动沙地、半固定沙地、固定沙地等阶段的群落样地为对象,研究了沙地植被发育过程群落物种组成的变化.研究结果表明,从流动沙地到半固定沙地、再到固定沙地,每一阶段对应着典型的群落类型,每一群落类型优势种的作用明显.植被发育过程物种丰富度、Shannon-Wiener指数、生活型结构和科属组成的变化,都表明了植被发育程度的提高和群落生态功能的恢复.禾本科植物在群落中的地位和作用不断上升,植被的草原成分增加,草地质量改善和提高.
英文摘要	The Horqin Sandland is a typical region in the farming-pasture ecotone in north China, the vegeta-tion composed of the sparse forests and grasslands developed well in historical times. Currently, however, the land desertification has become as the serious environmental problem and has seriously restricted the sustainable regional social-economic development due to the rapid population growth and the excessive reclamation and graz-ing. Therefore, the regeneration of the natural vegetation is an urgent matter in the region. In this paper, the development process of the vegetation and the change of species composition in the central-southern part of the Horqin Sandland are researched by selecting some plots of communities on the mobile, semi-fixed and fixed dunes. The results show that there is a typical community type in each stage of vegetation regeneration from the mobile, semi-fixed and fixed dunes, and the effects of the dominant species in each community type are obvious. The regeneration of vegetation in the study area is revealed by the species richness, Shannon-Wiener index, life form composition and family composition of the vegetation. Tbe function of grasses becomes more and more im-portant, and the quality of grasslands is obviously improved.
中文关键词	物种组成 ; 植被发育 ; 科尔沁沙地
英文关键词	species composition vegetation development the Horqin Sandland
语种	中文
国家	中国
收录类别	CSCD
WOS类目	PLANT SCIENCES
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:1500195
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/2XILL650/205050
作者单位	中国科学院寒区旱区环境与工程研究所, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	张继义,赵哈林,崔建垣,等. 科尔沁沙地沙丘植被发育过程及物种组成变化[J]. 中国科学院西北生态环境资源研究院,2004,21(1):72-75.
APA	张继义,赵哈林,崔建垣,李玉霖,&杨甲定.(2004).科尔沁沙地沙丘植被发育过程及物种组成变化.干旱区研究,21(1),72-75.
MLA	张继义,et al."科尔沁沙地沙丘植被发育过程及物种组成变化".干旱区研究 21.1(2004):72-75.