Spatial heterogeneity of greening and browning between and within bioclimatic zones in northern West Siberia
Studies of the normalized difference vegetation index (NDVI) have found broad changes in vegetation productivity in high northern latitudes in the past decades, including increases in NDVI (‘greening’) in tundra regions and decreases (‘browning’) in forest regions. The causes of these changes are no...
Published in: | Environmental Research Letters |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
IOP Publishing
2016
|
Subjects: | |
Online Access: | https://doi.org/10.1088/1748-9326/11/11/115002 https://doaj.org/article/b58c1b6780be4de3b0e55da155e27605 |
id |
ftdoajarticles:oai:doaj.org/article:b58c1b6780be4de3b0e55da155e27605 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:b58c1b6780be4de3b0e55da155e27605 2023-09-05T13:23:50+02:00 Spatial heterogeneity of greening and browning between and within bioclimatic zones in northern West Siberia Victoria V Miles Igor Esau 2016-01-01T00:00:00Z https://doi.org/10.1088/1748-9326/11/11/115002 https://doaj.org/article/b58c1b6780be4de3b0e55da155e27605 EN eng IOP Publishing https://doi.org/10.1088/1748-9326/11/11/115002 https://doaj.org/toc/1748-9326 doi:10.1088/1748-9326/11/11/115002 1748-9326 https://doaj.org/article/b58c1b6780be4de3b0e55da155e27605 Environmental Research Letters, Vol 11, Iss 11, p 115002 (2016) greening boreal forest tundra Siberia satellite remote sensing vegetation productivity Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 article 2016 ftdoajarticles https://doi.org/10.1088/1748-9326/11/11/115002 2023-08-13T00:37:52Z Studies of the normalized difference vegetation index (NDVI) have found broad changes in vegetation productivity in high northern latitudes in the past decades, including increases in NDVI (‘greening’) in tundra regions and decreases (‘browning’) in forest regions. The causes of these changes are not well understood but have been attributed to a variety of factors. We use Moderate Resolution Imaging Spectrometer (MODIS) satellite data for 2000–2014 and focus on northern West Siberia—a hot spot of extensive landcover change due to rapid resource development, geomorphic change, climate change and reindeer grazing. The region is relatively little-studied in terms of vegetation productivity patterns and trends. This study examines changes between and within bioclimatic sub-zones and reveals differences between forest and treeless areas and differences in productivity even down to the tree species level. Our results show that only 18% of the total northern West Siberia area had statistically significant changes in productivity, with 8.4% increasing (greening) and 9.6% decreasing (browning). We find spatial heterogeneity in the trends, and contrasting trends both between and within bioclimatic zones. A key finding is the identification of contrasting trends for different species within the same bioclimatic zone. Browning is most prominent in areas of denser tree coverage, and particularly in evergreen coniferous forest with dark ( Picea abie , Picea obovata) or light ( Pinus sylvestris ) evergreen and evergreen-majority mixed forests. In contrast, low density deciduous needle-leaf forest dominated by larch ( Larix sibirica ), shows a significant increase in productivity, even while neighboring different species show productivity decrease. These results underscore the complexity of the patterns of variability and trends in vegetation productivity, and suggest the need for spatially and thematically detailed studies to better understand the response of different northern forest types and species to climate and ... Article in Journal/Newspaper Tundra Siberia Directory of Open Access Journals: DOAJ Articles Browning ENVELOPE(164.050,164.050,-74.617,-74.617) Environmental Research Letters 11 11 115002 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
greening boreal forest tundra Siberia satellite remote sensing vegetation productivity Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 |
spellingShingle |
greening boreal forest tundra Siberia satellite remote sensing vegetation productivity Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 Victoria V Miles Igor Esau Spatial heterogeneity of greening and browning between and within bioclimatic zones in northern West Siberia |
topic_facet |
greening boreal forest tundra Siberia satellite remote sensing vegetation productivity Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 |
description |
Studies of the normalized difference vegetation index (NDVI) have found broad changes in vegetation productivity in high northern latitudes in the past decades, including increases in NDVI (‘greening’) in tundra regions and decreases (‘browning’) in forest regions. The causes of these changes are not well understood but have been attributed to a variety of factors. We use Moderate Resolution Imaging Spectrometer (MODIS) satellite data for 2000–2014 and focus on northern West Siberia—a hot spot of extensive landcover change due to rapid resource development, geomorphic change, climate change and reindeer grazing. The region is relatively little-studied in terms of vegetation productivity patterns and trends. This study examines changes between and within bioclimatic sub-zones and reveals differences between forest and treeless areas and differences in productivity even down to the tree species level. Our results show that only 18% of the total northern West Siberia area had statistically significant changes in productivity, with 8.4% increasing (greening) and 9.6% decreasing (browning). We find spatial heterogeneity in the trends, and contrasting trends both between and within bioclimatic zones. A key finding is the identification of contrasting trends for different species within the same bioclimatic zone. Browning is most prominent in areas of denser tree coverage, and particularly in evergreen coniferous forest with dark ( Picea abie , Picea obovata) or light ( Pinus sylvestris ) evergreen and evergreen-majority mixed forests. In contrast, low density deciduous needle-leaf forest dominated by larch ( Larix sibirica ), shows a significant increase in productivity, even while neighboring different species show productivity decrease. These results underscore the complexity of the patterns of variability and trends in vegetation productivity, and suggest the need for spatially and thematically detailed studies to better understand the response of different northern forest types and species to climate and ... |
format |
Article in Journal/Newspaper |
author |
Victoria V Miles Igor Esau |
author_facet |
Victoria V Miles Igor Esau |
author_sort |
Victoria V Miles |
title |
Spatial heterogeneity of greening and browning between and within bioclimatic zones in northern West Siberia |
title_short |
Spatial heterogeneity of greening and browning between and within bioclimatic zones in northern West Siberia |
title_full |
Spatial heterogeneity of greening and browning between and within bioclimatic zones in northern West Siberia |
title_fullStr |
Spatial heterogeneity of greening and browning between and within bioclimatic zones in northern West Siberia |
title_full_unstemmed |
Spatial heterogeneity of greening and browning between and within bioclimatic zones in northern West Siberia |
title_sort |
spatial heterogeneity of greening and browning between and within bioclimatic zones in northern west siberia |
publisher |
IOP Publishing |
publishDate |
2016 |
url |
https://doi.org/10.1088/1748-9326/11/11/115002 https://doaj.org/article/b58c1b6780be4de3b0e55da155e27605 |
long_lat |
ENVELOPE(164.050,164.050,-74.617,-74.617) |
geographic |
Browning |
geographic_facet |
Browning |
genre |
Tundra Siberia |
genre_facet |
Tundra Siberia |
op_source |
Environmental Research Letters, Vol 11, Iss 11, p 115002 (2016) |
op_relation |
https://doi.org/10.1088/1748-9326/11/11/115002 https://doaj.org/toc/1748-9326 doi:10.1088/1748-9326/11/11/115002 1748-9326 https://doaj.org/article/b58c1b6780be4de3b0e55da155e27605 |
op_doi |
https://doi.org/10.1088/1748-9326/11/11/115002 |
container_title |
Environmental Research Letters |
container_volume |
11 |
container_issue |
11 |
container_start_page |
115002 |
_version_ |
1776204401476632576 |