DOI: 10.1002/2014GL062004
论文题名: Influences of relative humidity and Indian monsoon precipitation on leaf water stable isotopes from the southeastern Tibetan Plateau
作者: Yu W. ; Xu B. ; Lai C.-T. ; Ma Y. ; Tian L. ; Qu D. ; Zhu Z.
刊名: Geophysical Research Letters
ISSN: 0094-9637
EISSN: 1944-9368
出版年: 2014
卷: 41, 期: 21 起始页码: 7746
结束页码: 7753
语种: 英语
英文关键词: leaf water
; southeastern Tibetan Plateau
; stable isotopes
Scopus关键词: Isotopes
; Soil moisture
; Indian monsoon
; Leaf water
; Monsoon precipitation
; Project reports
; Source waters
; Stable isotopes
; Tibetan Plateau
; Tree ring cellulose
; Atmospheric thermodynamics
; climate effect
; monsoon
; precipitation (climatology)
; relative humidity
; soil water
; time series
; woody plant
; China
; Qinghai-Xizang Plateau
英文摘要: This project report results of the first leaf water δ18O and δD time series of the woody plant Quercus aquifolioides undertaken on the southeastern Tibetan Plateau (STP). The data show that δD of leaf water underwent less enrichment than δ18O relative to precipitation and soil water, and could "inherit" the δD value characteristics of precipitation far better than δ18O. The leaf water δD values were strongly modified by evaporative enrichment in response to lower and more drastically changing relative humidity observed outside of the rainy season. In comparison, leaf water δD values more closely tracked those observed in the monsoon precipitation (acted as source water) in the rainy season. Our findings suggest that leaf water δD values from the STP were sensitive to the Indian monsoon activities, and the effects of relative humidity and the Indian monsoon precipitation should be considered for stable isotopes in tree ring cellulose or other biomarkers studies on the STP. Key Points Leaf water δD could "inherit" the precipitation δD values far better than δ18OLeaf water δD values were apparently modified by RH outside of the rainy seasonLeaf water δD values were affected by monsoon precipitation in the rainy season ©2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84912115855&doi=10.1002%2f2014GL062004&partnerID=40&md5=a298146a2d33f14fe0e2579c6b106912
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6901
Appears in Collections: 气候减缓与适应
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作者单位: Key Laboratory of Tibetan Environment Changes and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, China
Recommended Citation:
Yu W.,Xu B.,Lai C.-T.,et al. Influences of relative humidity and Indian monsoon precipitation on leaf water stable isotopes from the southeastern Tibetan Plateau[J]. Geophysical Research Letters,2014-01-01,41(21).