globalchange  > 气候变化与战略
DOI: 10.1029/2019GB006325
论文题名:
From Trees to Ecosystems: Spatiotemporal Scaling of Climatic Impacts on Montane Landscapes Using Dendrochronological, Isotopic, and Remotely Sensed Data
作者: Correa-Díaz A.; Silva L.C.R.; Horwath W.R.; Gómez-Guerrero A.; Vargas-Hernández J.; Villanueva-Díaz J.; Suárez-Espinoza J.; Velázquez-Martínez A.
刊名: Global Biogeochemical Cycles
ISSN: 0886-6236
EISSN: 1944-9224
出版年: 2020
卷: 34, 期:3
语种: 英语
英文关键词: alpine environment ; carbon isotope ; climate change ; climate effect ; dendrochronology ; drought ; forest ecosystem ; landscape ; mountain region ; NDVI ; oxygen isotope ; satellite data ; spatiotemporal analysis ; tree ring ; water use efficiency ; wood ; Pinus hartwegii
学科: alpine forest ; NDVI ; tree rings ; water-use efficiency ; wood isotopes
中文摘要: An interdisciplinary approach is needed for understanding tree physiology and forest biogeochemical cycles undergoing climate change and rising atmospheric CO2. We combined tree ring time series, wood isotope signatures, remotely sensed variables, and climatic data to perform a spatiotemporal scaling analysis of tree physiology and high-elevation forest responses to rising CO2. The main question addressed is how tree physiological performance of dominant trees can be combined with satellite-derived information of stand-level productivity to understand how the landscape shapes the relationship between forest structure and function. Annually resolved tree ring carbon and oxygen isotopic ratios (δ13C and δ18O), carbon isotope discrimination from CO2 to wood (Δ13C), and intrinsic water-use efficiency (iWUE) of dominant Pinus hartwegii Lindl. trees were sampled and compared against stand-level normalized difference vegetation index (NDVI) time series from 2000 to 2016. Linear mixed-effects models tested the effects of elevation, aspect, and time. Carbon and oxygen isotope ratios were correlated with NDVI mainly for the previous fall-winter season and for the beginning of the growing season. Wood δ13C decreased over time regardless of spatial position, whereas wood δ18O varied as a function of altitude and time. Although Δ13C did not vary with elevation, aspect, or time, a notable decline in Δ13C and peak in iWUE during a severe drought event was evident. Results highlight the link between remotely sensed data, tree ring isotopic composition, and tree physiology as the determining factors to determine spatiotemporal variability in dendroecological studies. ©2020. American Geophysical Union. All Rights Reserved.
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/160056
Appears in Collections:气候变化与战略

Files in This Item:

There are no files associated with this item.


作者单位: Posgrado en Ciencias Forestales, Colegio de Postgraduados, Montecillo, Mexico; Now at Centro Nacional de Investigación Disciplinaria en Conservación y Mejoramiento de Ecosistemas Forestales CENID-COMEF, INIFAP, Mexico City, Mexico; Environmental Studies Program, Department of Geography, Institute of Ecology and Evolution, University of Oregon, Eugene, OR, United States; Biogeochemistry and Nutrient Cycling Lab, Department of Land Air and Water Resources, University of California, Davis, CA, United States; Centro Nacional de Investigación Disciplinaria en Relación a Agua, Suelo, Planta y Atmósfera CENID-RASPA, INIFAP, Gomez Palacio, Mexico; Posgrado en Estadística, Colegio de Postgraduados, Montecillo, Mexico

Recommended Citation:
Correa-Díaz A.,Silva L.C.R.,Horwath W.R.,et al. From Trees to Ecosystems: Spatiotemporal Scaling of Climatic Impacts on Montane Landscapes Using Dendrochronological, Isotopic, and Remotely Sensed Data[J]. Global Biogeochemical Cycles,2020-01-01,34(3)
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Correa-Díaz A.]'s Articles
[Silva L.C.R.]'s Articles
[Horwath W.R.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Correa-Díaz A.]'s Articles
[Silva L.C.R.]'s Articles
[Horwath W.R.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Correa-Díaz A.]‘s Articles
[Silva L.C.R.]‘s Articles
[Horwath W.R.]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.