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	Spatial and Seasonal Variation in Rain Use Efficiency in Semiarid Grasslands of Inner Mongolia
	Bhandari J.; Pan, X. B.; Bijaya, G. C. D.
	2015
关键词	precipitation-use efficiency water-use-efficiency ecosystem processes diversity productivity gradient biomass steppe
英文摘要	Rain use efficiency (RUE) is an important indicator for identifying the response of plant production to variation in precipitation patterns, especially in semiarid ecosystem grasslands of Inner Mongolia. We have investigated the response and spatial patterns of RUE to precipitation patterns based on five years (2006, 2007, 2008, 2012, and 2013) of records from semiarid ecosystem sites across Inner Mongolia. Our results showed that RUEADM was lowest in the wettest year (2012) and highest in the year following the driest year (2008). There was no significant correlation between RUEADM and RUETDM in typical and desert steppe. RUETDM was strongly correlated with both annual precipitation (AP) and growing season precipitation (GSP) compared to RUEADM. RUEADM, therefore, cannot be used in place of RUETDM. RUEADM increased with species richness. The relationship between RUEADM and species richness was significantly correlated in meadow steppe, typical steppe, and desert steppe. Our findings can shed light on the spatial utilization pattern of seasonal rainfall in semiarid grassland ecosystems.
出处	Advances in Meteorology
收录类别	SCI
语种	英语
ISSN号	1687-9309
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/38551]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Bhandari J.,Pan, X. B.,Bijaya, G. C. D.. Spatial and Seasonal Variation in Rain Use Efficiency in Semiarid Grasslands of Inner Mongolia. 2015.

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