Community species diversity mediates the trade-off between aboveground and belowground biomass for grasses and forbs in degraded alpine meadow, Tibetan Plateau

doi:10.1002/ece3.8048

	Community species diversity mediates the trade-off between aboveground and belowground biomass for grasses and forbs in degraded alpine meadow, Tibetan Plateau
	Zhou, Tiancai 2,3; Sun, Jian 1; Zong, Ning 2; Hou, Ge 2,3; Shi, Peili 2,3
刊名	ECOLOGY AND EVOLUTION
	2021-08-29
页码	9
关键词	alpine meadow biomass allocation degradation plant function groups strategy
ISSN号	2045-7758
DOI	10.1002/ece3.8048
通讯作者	Shi, Peili(shipl@igsnrr.ac.cn)
英文摘要	Although many empirical experiments have shown that increasing degradation results in lower aboveground biomass (AGB), our knowledge of the magnitude of belowground biomass (BGB) for individual plants is a prerequisite for accurately revealing the biomass trade-off in degraded grasslands. Here, by linking the AGB and BGB of individual plants, species in the community, and soil properties, we explored the biomass partitioning patterns in different plant functional groups (grasses of Stipa capillacea and forbs of Anaphalis xylorhiza). Our results indicated that 81% and 60% of the biomass trade-off variations could be explained by environmental factors affecting grasses and forbs, respectively. The change in community species diversity dominated the biomass trade-off via either direct or indirect effects on soil properties and biomass. However, the community species diversity imparted divergent effects on the biomass trade-off for grasses (scored at -0.72) and forbs (scored at 0.59). Our findings suggest that plant communities have evolved two contrasting strategies of biomass allocation patterns in degraded grasslands. These are the "conservative" strategy in grasses, in which plants with larger BGB trade-off depends on gigantic roots for soil resources, and the "opportunistic" strategy in forbs, in which plants can adapt to degraded lands using high variation and optimal biomass allocation.
资助项目	National Natural Science Foundation of China[31870406] ; National Natural Science Foundation of China[42071066]
WOS关键词	PLANT DIVERSITY ; 3 RIVERS ; SOIL C ; ROOT ; SUCCESSION ; ALLOCATION ; NITROGEN ; PRODUCTIVITY ; RESTORATION ; DEGRADATION
WOS研究方向	Environmental Sciences & Ecology ; Evolutionary Biology
语种	英语
出版者	WILEY
WOS记录号	WOS:000690791100001
资助机构	National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/165138]
专题	中国科学院地理科学与资源研究所
通讯作者	Shi, Peili
作者单位	1.Chinese Acad Sci, Inst Tibetan Plateau Res, State Key Lab Tibetan Plateau Earth Syst Resource, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modelling, Beijing, Peoples R China 3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Zhou, Tiancai,Sun, Jian,Zong, Ning,et al. Community species diversity mediates the trade-off between aboveground and belowground biomass for grasses and forbs in degraded alpine meadow, Tibetan Plateau[J]. ECOLOGY AND EVOLUTION,2021:9.
APA	Zhou, Tiancai,Sun, Jian,Zong, Ning,Hou, Ge,&Shi, Peili.(2021).Community species diversity mediates the trade-off between aboveground and belowground biomass for grasses and forbs in degraded alpine meadow, Tibetan Plateau.ECOLOGY AND EVOLUTION,9.
MLA	Zhou, Tiancai,et al."Community species diversity mediates the trade-off between aboveground and belowground biomass for grasses and forbs in degraded alpine meadow, Tibetan Plateau".ECOLOGY AND EVOLUTION (2021):9.