干旱区生态环境知识资源中心(Arid): Spatial variation and mechanisms of leaf water content in grassland plants at the biome scale: evidence from three comparative transects

Arid

DOI	10.1038/s41598-021-88678-7
	Spatial variation and mechanisms of leaf water content in grassland plants at the biome scale: evidence from three comparative transects
	Wang, Ruomeng; He, Nianpeng; Li, Shenggong; Li Xu; Li, Mingxu
通讯作者	He, NAP ; Li, SG (corresponding author), Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, 11A Datun Rd, Beijing 100101, Peoples R China. ; He, NAP ; Li, SG (corresponding author), Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China. ; He, NAP (corresponding author), Minist Educ, Key Lab Vegetat Ecol, Changchun 130024, Peoples R China.
来源期刊	SCIENTIFIC REPORTS
ISSN	2045-2322
出版年	2021
卷号	11 期号:1
英文摘要	Leaf water content (LWC) has important physiological and ecological significance for plant growth. However, it is still unclear how LWC varies over large spatial scale and with plant adaptation strategies. Here, we measured the LWC of 1365 grassland plants, along three comparative precipitation transects from meadow to desert on the Mongolia Plateau (MP), Loess Plateau, and Tibetan Plateau, respectively, to explore its spatial variation and the underlying mechanisms that determine this variation. The LWC data were normally distributed with an average value of 0.66 g g(-1). LWC was not significantly different among the three plateaus, but it differed significantly among different plant life forms. Spatially, LWC in the three plateaus all decreased and then increased from meadow to desert grassland along a precipitation gradient. Unexpectedly, climate and genetic evolution only explained a small proportion of the spatial variation of LWC in all plateaus, and LWC was only weakly correlated with precipitation in the water-limited MP. Overall, the lasso variation in LWC with precipitation in all plateaus represented an underlying trade-off between structural investment and water income in plants, for better survival in various environments. In brief, plants should invest less to thrive in a humid environment (meadow), increase more investment to keep a relatively stable LWC in a drying environment, and have high investment to hold higher LWC in a dry environment (desert). Combined, these results indicate that LWC should be an important variable in future studies of large-scale trait variations.
类型	Article
语种	英语
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000656206800010
WOS关键词	TRAIT VARIATION ; ROOT-GROWTH ; RANGE SIZE ; AREA ; DIMENSIONS ; PATTERNS ; SUMMER ; SHAPE
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
来源机构	中国科学院地理科学与资源研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/351717
作者单位	[Wang, Ruomeng; He, Nianpeng; Li, Shenggong; Li Xu; Li, Mingxu] Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, 11A Datun Rd, Beijing 100101, Peoples R China; [Wang, Ruomeng; He, Nianpeng; Li, Shenggong] Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China; [He, Nianpeng] Minist Educ, Key Lab Vegetat Ecol, Changchun 130024, Peoples R China
推荐引用方式 GB/T 7714	Wang, Ruomeng,He, Nianpeng,Li, Shenggong,et al. Spatial variation and mechanisms of leaf water content in grassland plants at the biome scale: evidence from three comparative transects[J]. 中国科学院地理科学与资源研究所,2021,11(1).
APA	Wang, Ruomeng,He, Nianpeng,Li, Shenggong,Li Xu,&Li, Mingxu.(2021).Spatial variation and mechanisms of leaf water content in grassland plants at the biome scale: evidence from three comparative transects.SCIENTIFIC REPORTS,11(1).
MLA	Wang, Ruomeng,et al."Spatial variation and mechanisms of leaf water content in grassland plants at the biome scale: evidence from three comparative transects".SCIENTIFIC REPORTS 11.1(2021).