气候变化领域集成服务门户(CCPortal): Varying climate response across the tundra, forest-tundra and boreal forest biomes in northern West Siberia

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DOI	10.1088/1748-9326/ab2364
	Varying climate response across the tundra, forest-tundra and boreal forest biomes in northern West Siberia
	Miles M.W.; Miles V.V.; Esau I.
发表日期	2019
ISSN	17489318
卷号	14 期号:7
英文摘要	Satellite studies using the normalized difference vegetation index (NDVI) have revealed changes in northern Eurasian vegetation productivity in recent decades, including greening in tundra and browning in the boreal forests. However, apparent NDVI changes and relationships to climate depend on the temporal and spatial sampling and the biome and forest-land cover type studied. Here we perform a consistent analysis of NDVI and climate across four bioclimatic zones (tundra, forest-tundra, northern and middle taiga) in northern West Siberia (NWS), further stratified into eight forest-land cover types. We utilize NDVI data from the Moderate Resolution Imaging Spectroradiometer and climate reanalysis data from 2000 to 2016, a period including the record warm anomaly in 2016 (+2 °C-5 °C June-July surface air temperature (SAT) across NWS). Statistically significant (α = 0.05) correlations were found for two bivariate relationships at the biome level: between NDVImax and June-July surface air temperature (SAT)(r ∼ +0.79), and between middle taiga NDVImax and July precipitation (r ∼ +0.48). No significant statistical relationships were found for the northern taiga and forest-tundra biomes. However, within these biomes we found that deciduous needle-leaf (larch) NDVImax is significantly correlated with July temperature (r ∼ +0.48). Qualitatively, spatial composites of NDVI and climate variables were effective for revealing insights and patterns of these relationships at the sub-regional scale. The spatial heterogeneity of NDVI patterns indicates divergent reactions of specific types of vegetation, as well as local effects that are clearly important on the background of a regional climate response. © 2019 The Author(s). Published by IOP Publishing Ltd.
英文关键词	Arctic tundra; boreal forest; normalized difference vegetation index
语种	英语
scopus关键词	Larix
来源期刊	Environmental Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/154499
作者单位	NORCE Norwegian Research Centre, Bjerknes Centre for Climate Research, Bergen, Norway; Institute of Arctic and Alpine Research, University of Colorado, Boulder, CO, United States; Nansen Environmental and Remote Sensing Center, Bjerknes Centre for Climate Research, Bergen, Norway
推荐引用方式 GB/T 7714	Miles M.W.,Miles V.V.,Esau I.. Varying climate response across the tundra, forest-tundra and boreal forest biomes in northern West Siberia[J],2019,14(7).
APA	Miles M.W.,Miles V.V.,&Esau I..(2019).Varying climate response across the tundra, forest-tundra and boreal forest biomes in northern West Siberia.Environmental Research Letters,14(7).
MLA	Miles M.W.,et al."Varying climate response across the tundra, forest-tundra and boreal forest biomes in northern West Siberia".Environmental Research Letters 14.7(2019).