气候变化领域集成服务门户(CCPortal): From Trees to Ecosystems: Spatiotemporal Scaling of Climatic Impacts on Montane Landscapes Using Dendrochronological, Isotopic, and Remotely Sensed Data

CCPortal

DOI	10.1029/2019GB006325
	From Trees to Ecosystems: Spatiotemporal Scaling of Climatic Impacts on Montane Landscapes Using Dendrochronological, Isotopic, and Remotely Sensed Data
	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.
发表日期	2020
ISSN	0886-6236
EISSN	1944-9224
卷号	34 期号:3
英文摘要	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.
英文关键词	alpine forest; NDVI; tree rings; water-use efficiency; wood isotopes
语种	英语
scopus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
来源期刊	Global Biogeochemical Cycles
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/129661
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
推荐引用方式 GB/T 7714	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],2020,34(3).
APA	Correa-Díaz A..,Silva L.C.R..,Horwath W.R..,Gómez-Guerrero A..,Vargas-Hernández J..,...&Velázquez-Martínez A..(2020).From Trees to Ecosystems: Spatiotemporal Scaling of Climatic Impacts on Montane Landscapes Using Dendrochronological, Isotopic, and Remotely Sensed Data.Global Biogeochemical Cycles,34(3).
MLA	Correa-Díaz A.,et al."From Trees to Ecosystems: Spatiotemporal Scaling of Climatic Impacts on Montane Landscapes Using Dendrochronological, Isotopic, and Remotely Sensed Data".Global Biogeochemical Cycles 34.3(2020).