Climate and native grassland vegetation as drivers of the community   structures of shrub-encroached grasslands in Inner Mongolia, China

doi:10.1007/s10980-014-0044-9

CORC > 北京大学 > 城市与环境学院

	Climate and native grassland vegetation as drivers of the community structures of shrub-encroached grasslands in Inner Mongolia, China
	Chen, Leiyi ; Li, He ; Zhang, Pujin ; Zhao, Xia ; Zhou, Luhong ; Liu, Taoyu ; Hu, Huifeng ; Bai, Yongfei ; Shen, Haihua ; Fang, Jingyun
刊名	LANDSCAPE ECOLOGY
	2015
关键词	Arid and semi-arid area Climate Community structure Geographic pattern Grassland Shrub encroachment Shrubby grassland Shrubland WOODY PLANT INVASION SPECIES RICHNESS INVASIBILITY CARBON ECOSYSTEM GRADIENT DIVERSITY PATTERNS STEPPE WATER
DOI	10.1007/s10980-014-0044-9
英文摘要	Shrub encroachment in grasslands will lead to a mosaic landscape with shrub patches interspaced with grass patches and thus alters local and regional water and heat balance. Syntheses on effects of the climate and native grassland community on the shrub-encroached grassland (SEG) are very limited at a large scale. In this study we examined the variation of their community characteristics in the Inner Mongolian grasslands, using 192 SEG plots data from field survey during 2012-2013. Our results indicated that shrub cover and patch size exhibit a significant increase with longitude, but showed a hump-shaped latitudinal pattern. Shrub patch density and herb abundance were negative associated with latitude and longitude, whereas plant height showed an opposite trend. Such geographical patterns were likely co-determined by climate and native vegetation. Precipitation was the major controller for shrub cover and patch size, and temperature was the primary factor influencing shrub height and patch density. Consequently, shrub cover and patch size were greater at dry and warm habitats than at moist and cool sites. In addtion, native vegetation also significantly influenced the variations in that of shrub patches. Diverse habitats with tall vegetation were likely more resistant to shrub encroachment. Furthermore, although we did not fully evaluate the effects of soils on SEGs, the discussion on the soil-SEG relationship suggests an important role of soils in characterizing SEG structures. Our study provides the first regional assessment on the variations of SEG structures, and has an implication in the regional shrub expansion management and control.; National Natural Science Foundation of China [31330012, 31321061]; Strategic Priority Research Program of the Chinese Academy of Sciences [XDA05050300]; National Basic Research Program of China on Global Change [2010CB950600]; China Postdoctoral Science Foundation [2013M530767]; SCI(E); ARTICLE; chenly@ibcas.ac.cn; shen.haihua@ibcas.ac.cn; jyfang@urban.pku.edu.cn; 9; 1627-1641; 30
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/415486]
专题	城市与环境学院
推荐引用方式 GB/T 7714	Chen, Leiyi,Li, He,Zhang, Pujin,et al. Climate and native grassland vegetation as drivers of the community structures of shrub-encroached grasslands in Inner Mongolia, China[J]. LANDSCAPE ECOLOGY,2015.
APA	Chen, Leiyi.,Li, He.,Zhang, Pujin.,Zhao, Xia.,Zhou, Luhong.,...&Fang, Jingyun.(2015).Climate and native grassland vegetation as drivers of the community structures of shrub-encroached grasslands in Inner Mongolia, China.LANDSCAPE ECOLOGY.
MLA	Chen, Leiyi,et al."Climate and native grassland vegetation as drivers of the community structures of shrub-encroached grasslands in Inner Mongolia, China".LANDSCAPE ECOLOGY (2015).