Arid
DOI10.1016/j.scitotenv.2017.11.171
The relationships between leaf economics and hydraulic traits of woody plants depend on water availability
Yin, Qiulong; Wang, Lei; Lei, Maolin; Dang, Han; Quan, Jiaxin; Tian, Tingting; Chai, Yongfu; Yue, Ming
通讯作者Yue, Ming
来源期刊SCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
EISSN1879-1026
出版年2018
卷号621页码:245-252
英文摘要

Leaf economics and hydraulic traits are simultaneously involved in the process of trading water for CO2, but the relationships between these two suites of traits remain ambiguous. Recently, Li et al. (2015) reported that leaf economics and hydraulic traits were decoupled in five tropical-subtropical forests in China.


We tested the hypothesis that the relationships between economics and hydraulic traits may depend on water availability. We analysed five leaf economics traits, four hydraulic traits and anatomical structures of 47 woody species on the Loess Plateau with poor water availability and compared those data with Li et al. (2015) obtained in tropical-subtropical regions with adequate water.


The results showed that plants on the Loess Plateau tend to have higher leaf tissue density (TD), leaf nitrogen concentrations and venation density (VD) and lower stomatal guard cell length (SL) and maximum stomatal conductance to water vapour (g(wmax)). VD showed positive correlations with leaf nitrogen concentrations, palisade tissue thickness (PT) and ratio of palisade tissue thickness to spongy tissue thickness (PT/ST). Principal component analysis (PCA) showed a result opposite from those of tropical-subtropical regions: leaf economics and hydraulic traits were coupled on the Loess Plateau.


A stable correlation between these two suites of traits may be more cost-effective on the Loess Plateau, where water availability is poor. The correlation of leaf economics and hydraulic traits may be a type of adaptation mechanism in arid conditions. (C) 2017 Elsevier B.V. All rights reserved.


英文关键词Vein density Stomatal density Stomatal guard cell length Leaf nitrogen concentrations Leaf dry mass per area Palisade tissue thickness
类型Article
语种英语
国家Peoples R China
收录类别SCI-E
WOS记录号WOS:000424196800026
WOS关键词MESOPHYLL CONDUCTANCE ; LOESS PLATEAU ; ECOLOGICAL STRATEGIES ; STOMATAL CONDUCTANCE ; SUBTROPICAL FORESTS ; SUCCESSIONAL STAGES ; VENATION NETWORKS ; TRADE-OFFS ; DENSITY ; CHINA
WOS类目Environmental Sciences
WOS研究方向Environmental Sciences & Ecology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/212930
作者单位Northwest Univ, Key Lab Resource Biol & Biotechnol Western China, Xian, Shaanxi, Peoples R China
推荐引用方式
GB/T 7714
Yin, Qiulong,Wang, Lei,Lei, Maolin,et al. The relationships between leaf economics and hydraulic traits of woody plants depend on water availability[J],2018,621:245-252.
APA Yin, Qiulong.,Wang, Lei.,Lei, Maolin.,Dang, Han.,Quan, Jiaxin.,...&Yue, Ming.(2018).The relationships between leaf economics and hydraulic traits of woody plants depend on water availability.SCIENCE OF THE TOTAL ENVIRONMENT,621,245-252.
MLA Yin, Qiulong,et al."The relationships between leaf economics and hydraulic traits of woody plants depend on water availability".SCIENCE OF THE TOTAL ENVIRONMENT 621(2018):245-252.
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