Above- and Belowground Biomass Allocation in Shrub Biomes across the Northeast Tibetan Plateau

doi:10.1371/journal.pone.0154251

	Above- and Belowground Biomass Allocation in Shrub Biomes across the Northeast Tibetan Plateau
	Nie, Xiuqing 1,3; Yang, Yuanhe2 ; Yang, Lucun 1; Zhou, Guoying 1
	2016
发表期刊	PLOS ONE
ISSN	1932-6203
卷号	11 期号:4
摘要	Biomass partitioning has been explored across various biomes. However, the strategies of allocation in plants still remain contentious. This study investigated allocation patterns of above-and belowground biomass at the community level, using biomass survey from the Tibetan Plateau. We explored above-and belowground biomass by conducting three consecutive sampling campaigns across shrub biomes on the northeast Tibetan Plateau during 2011-2013. We then documented the above-ground biomass (AGB), below-ground biomass (BGB) and root: shoot ratio (R/S) and the relationships between R/S and environment factors using data from 201 plots surveyed from 67 sites. We further examined relationships between above-ground and below-ground biomass across various shrub types. Our results indicated that the median values of AGB, BGB, and R/S in Tibetan shrub were 1102.55, 874.91 g m(-2), and 0.85, respectively. R/S showed significant trend with mean annual precipitation (MAP), while decreased with mean annual temperature (MAT). Reduced major axis analysis indicated that the slope of the log-log relationship between above-and belowground biomass revealed a significant difference from 1.0 over space, supporting the optimal hypothesis. Interestingly, the slopes of the allometric relationship between log AGB and log BGB differed significantly between alpine and desert shrub. Our findings supported the optimal theory of above-and belowground biomass partitioning in Tibetan shrub, while the isometric hypothesis for alpine shrub at the community level.
学科领域	Multidisciplinary Sciences
DOI	10.1371/journal.pone.0154251
收录类别	SCI
语种	英语
WOS关键词	GLOBAL PATTERNS ; GROWTH ; PLANTS ; LAND
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000374976200052
出版者	PUBLIC LIBRARY SCIENCE
文献子类	Article
出版地	SAN FRANCISCO
资助机构	National Program on Key Basic Research ProjectNational Basic Research Program of China [2012CB026105] ; National Science and Technology Support Project [2014BAC05B01] ; Strategic Priority Research Program of CAS [XDA05050303] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [40801076]
作者邮箱	zhougy@nwipb.cas.cn
作品OA属性	Green Published, Green Submitted, gold
引用统计	被引频次：28[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/25191
专题	植被与环境变化国家重点实验室
作者单位	1.Chinese Acad Sci, Northwest Inst Plateau Biol, Xining 810008, Peoples R China 2.Chinese Acad Sci, Key Lab Tibetan Med Res, Xining 810008, Peoples R China 3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Nie, Xiuqing,Yang, Yuanhe,Yang, Lucun,et al. Above- and Belowground Biomass Allocation in Shrub Biomes across the Northeast Tibetan Plateau[J]. PLOS ONE,2016,11(4).
APA	Nie, Xiuqing,Yang, Yuanhe,Yang, Lucun,&Zhou, Guoying.(2016).Above- and Belowground Biomass Allocation in Shrub Biomes across the Northeast Tibetan Plateau.PLOS ONE,11(4).
MLA	Nie, Xiuqing,et al."Above- and Belowground Biomass Allocation in Shrub Biomes across the Northeast Tibetan Plateau".PLOS ONE 11.4(2016).

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