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

doi:10.1371/journal.pone.0154251

CORC > 植物研究所 > 中国科学院植物研究所 > 植被与环境变化国家重点实验室

	Above- and Belowground Biomass Allocation in Shrub Biomes across the Northeast Tibetan Plateau
	Nie, Xiuqing 1,3; Yang, Yuanhe 4; Yang, Lucun 3; Zhou, Guoying 3
刊名	PLOS ONE
	2016
卷号	11 期号:4
ISSN号	1932-6203
DOI	10.1371/journal.pone.0154251
文献子类	Article
英文摘要	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.
学科主题	Multidisciplinary Sciences
出版地	SAN FRANCISCO
WOS关键词	GLOBAL PATTERNS ; GROWTH ; PLANTS ; LAND
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
语种	英语
出版者	PUBLIC LIBRARY SCIENCE
WOS记录号	WOS:000374976200052
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]
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/24543]
专题	植被与环境变化国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Northwest Inst Plateau Biol, Xining 810008, Peoples R China 4.Chinese Acad Sci, Key Lab Tibetan Med Res, Xining 810008, 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).