Varying climate response across the tundra, forest-tundra and boreal forest biomes in northern West Siberia
Abstract 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...
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crioppubl:10.1088/1748-9326/ab2364 2024-09-30T14:44:42+00:00 Varying climate response across the tundra, forest-tundra and boreal forest biomes in northern West Siberia Miles, Martin W Miles, Victoria V Esau, Igor Office of Polar Programs Norges Forskningsråd 2019 http://dx.doi.org/10.1088/1748-9326/ab2364 https://iopscience.iop.org/article/10.1088/1748-9326/ab2364 https://iopscience.iop.org/article/10.1088/1748-9326/ab2364/pdf unknown IOP Publishing http://creativecommons.org/licenses/by/3.0/ https://iopscience.iop.org/info/page/text-and-data-mining Environmental Research Letters volume 14, issue 7, page 075008 ISSN 1748-9326 journal-article 2019 crioppubl https://doi.org/10.1088/1748-9326/ab2364 2024-09-09T05:47:21Z Abstract 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. Article in Journal/Newspaper taiga Tundra Siberia IOP Publishing Browning ENVELOPE(164.050,164.050,-74.617,-74.617) Environmental Research Letters 14 7 075008 |
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Abstract 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. |
author2 |
Office of Polar Programs Norges Forskningsråd |
format |
Article in Journal/Newspaper |
author |
Miles, Martin W Miles, Victoria V Esau, Igor |
spellingShingle |
Miles, Martin W Miles, Victoria V Esau, Igor Varying climate response across the tundra, forest-tundra and boreal forest biomes in northern West Siberia |
author_facet |
Miles, Martin W Miles, Victoria V Esau, Igor |
author_sort |
Miles, Martin W |
title |
Varying climate response across the tundra, forest-tundra and boreal forest biomes in northern West Siberia |
title_short |
Varying climate response across the tundra, forest-tundra and boreal forest biomes in northern West Siberia |
title_full |
Varying climate response across the tundra, forest-tundra and boreal forest biomes in northern West Siberia |
title_fullStr |
Varying climate response across the tundra, forest-tundra and boreal forest biomes in northern West Siberia |
title_full_unstemmed |
Varying climate response across the tundra, forest-tundra and boreal forest biomes in northern West Siberia |
title_sort |
varying climate response across the tundra, forest-tundra and boreal forest biomes in northern west siberia |
publisher |
IOP Publishing |
publishDate |
2019 |
url |
http://dx.doi.org/10.1088/1748-9326/ab2364 https://iopscience.iop.org/article/10.1088/1748-9326/ab2364 https://iopscience.iop.org/article/10.1088/1748-9326/ab2364/pdf |
long_lat |
ENVELOPE(164.050,164.050,-74.617,-74.617) |
geographic |
Browning |
geographic_facet |
Browning |
genre |
taiga Tundra Siberia |
genre_facet |
taiga Tundra Siberia |
op_source |
Environmental Research Letters volume 14, issue 7, page 075008 ISSN 1748-9326 |
op_rights |
http://creativecommons.org/licenses/by/3.0/ https://iopscience.iop.org/info/page/text-and-data-mining |
op_doi |
https://doi.org/10.1088/1748-9326/ab2364 |
container_title |
Environmental Research Letters |
container_volume |
14 |
container_issue |
7 |
container_start_page |
075008 |
_version_ |
1811645826736324608 |