干旱区生态环境知识资源中心(Arid): 沙质草原植物群落退化与沙化演替

Arid

	沙质草原植物群落退化与沙化演替
其他题名	Plant community succession of degradation and desertification in sandy grassland
	丁勇; 牛建明; 杨持
ISSN	1000-4890
出版年	2006
卷号	25 期号:9 页码:1044-1051
中文摘要	应用TWINSPAN(two-way indicator species analysis)、DCA(detrended correspondence analysis)和CCA(canonical correspondence analysis)技术,对多伦县1984和2001年的28个样地草原植物群落调查数据及相对应的2001年的24个样地土壤调查数据进行分析.结果表明,研究区域的植物群落按照其退化、沙化或恢复演替序列可以分为5个阶段,不同时间的草原植物群落演替序列在空间格局上具有相似性,对比17年的动态变化,也呈现同一演替序列特征;与1984年相比,2001年研究区草原植物群落总体上有明显的退化迹象;草原植物群落退化、沙化或恢复演替与土壤变化具有一定相关性,土壤质地、养分和有机质变化在时间上较植物群落变化明显滞后.
英文摘要	The observed data of plant communities in 1984 and 2001 at 28 plots, and those of soils in 2001 at corresponding 24 plost of sandy grassland in Duolun County were analyzed by TWINSPAN (Two-way Indicator Species Analysis), DCA (Detrended Correspondence Analysis) and CCA (Canonical Correspondence Analysis). The results showed that according to the succession series in degradation, desertification or restoration, five vegetation types in the study area were classified. The succession series of plant communities was spatially similar both in 1984 and in 2001, furthermore, was also distinguished when the temporal dynamics was analyzed among 17 years. The grassland was degraded obviously at present days than in 1984. The succession of degradation, desertification or restoration of grassland plant communities showed some relationships with the changes of soil properties, while the changes of plant community were not coincident with those of soil properties when the temporal dynamics was taken into account. Soil texture, nutrients and organic matter changed slowly, compared with the changes of plant community.
中文关键词	沙质草原 ; 退化 ; 沙化 ; 植物群落 ; 演替 ; 多伦县
英文关键词	sandy grassland degradation desertification plant community succession Duolun County
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ECOLOGY
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:2442844
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/220070
作者单位	内蒙古大学生态与环境科学系, 呼和浩特, 内蒙古 010021, 中国
推荐引用方式 GB/T 7714	丁勇,牛建明,杨持. 沙质草原植物群落退化与沙化演替[J],2006,25(9):1044-1051.
APA	丁勇,牛建明,&杨持.(2006).沙质草原植物群落退化与沙化演替.,25(9),1044-1051.
MLA	丁勇,et al."沙质草原植物群落退化与沙化演替".25.9(2006):1044-1051.