Soil properties mediate ecosystem intrinsic water use efficiency and stomatal conductance via taxonomic diversity and leaf economic spectrum

doi:10.1016/j.scitotenv.2021.146968

	Soil properties mediate ecosystem intrinsic water use efficiency and stomatal conductance via taxonomic diversity and leaf economic spectrum
	Wang, Jing 1; Wen, Xuefa 1,3; Lyu, Sidan 1; Guo, Qingjun 2,3
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2021-08-20
卷号	783 页码:10
关键词	Biodiversity Leaf functional trait Soil fertility Soil limiting-resource iWUE gs
ISSN号	0048-9697
DOI	10.1016/j.scitotenv.2021.146968
通讯作者	Wen, Xuefa(wenxf@igsnrr.ac.cn) ; Lyu, Sidan(lvsidan@igsnrr.ac.cn)
英文摘要	The interactions between plants and soils lead to complex feedbacks that regulate intrinsic water use efficiency (iWUE) and stomatal conductance (gs) at ecosystem level and reflect water constraints on plant productivity. However, the relationships among soil properties, biodiversity, and leaf functional traits contributing to the variability in ecosystem iWUE and gs remain largely unknown. To elucidate these relationships, we used principal component analysis to reduce soil properties to a fertility spectrum and a limiting-resource spectrum across grassland, and early-, mid- and late-successional forests in a karst catchment. Leaf functional traits at community level were calculated based on leaf biomass, and were reduced to an economic spectrum and a limiting-resource spectrum. Leaf carbon (delta C-13) and oxygen (delta O-18) stable isotopes at community levels were used as proxies for ecosystem iWUE and &The effects of soil properties, biodiversity (taxonomic, functional and phylogenetic diversity) and leaf traits on delta C-13 and delta O-18 were evaluated using structural equation models. Our results showed that variability in ecosystem iWUE and gs was determined overwhelmingly by indirect effects of soil properties via two different pathways: the soil fertility spectrum, determining the number of coexisting species (taxonomic diversity) and turnover of species (leaf economic spectrum), and the soil limiting-resource spectrum, shaping the specific phylogenetic lineages (phylogenic diversity). In addition, delta C-13 and delta O-18 were constrained by the interactive effects of leaf economic spectrum, and taxonomic and phylogenic diversity; total effects of biodiversity on delta C-13 and delta O-18 were larger than those of leaf economic spectrum. Our study highlighted the critical role of the evaluating interaction relationships between leaf functional traits, biodiversity metrics and soil properties in understanding the mechanisms of ecosystem function responding to environmental change. (C) 2021 Published by Elsevier B.V.
资助项目	National Natural Science Foundation of China[41830860] ; National Natural Science Foundation of China[32001137] ; National Natural Science Foundation of China[41571130043]
WOS关键词	OXYGEN-ISOTOPE COMPOSITION ; PRIMARY PRODUCTIVITY ; PLANT DIVERSITY ; PHYLOGENETIC DIVERSITY ; STABLE OXYGEN ; BIODIVERSITY ; TRAITS ; CARBON ; NITROGEN ; BIOMASS
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000656998000015
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/311030/164078]
专题	中国科学院地理科学与资源研究所
通讯作者	Wen, Xuefa; Lyu, Sidan
作者单位	1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China 2.Chinese Acad Sci, Ctr Environm Remediat, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Wang, Jing,Wen, Xuefa,Lyu, Sidan,et al. Soil properties mediate ecosystem intrinsic water use efficiency and stomatal conductance via taxonomic diversity and leaf economic spectrum[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2021,783:10.
APA	Wang, Jing,Wen, Xuefa,Lyu, Sidan,&Guo, Qingjun.(2021).Soil properties mediate ecosystem intrinsic water use efficiency and stomatal conductance via taxonomic diversity and leaf economic spectrum.SCIENCE OF THE TOTAL ENVIRONMENT,783,10.
MLA	Wang, Jing,et al."Soil properties mediate ecosystem intrinsic water use efficiency and stomatal conductance via taxonomic diversity and leaf economic spectrum".SCIENCE OF THE TOTAL ENVIRONMENT 783(2021):10.