Climate change is enforcing physiological changes in Arctic Ecosystems
Remote sensing and site-level observations have shown unprecedented changes in Arctic ecosystems owing to climate warming. These observations include greening and browning trends in Arctic vegetation as well as changes in species composition both in the tundra and the boreal forests. Here, we levera...
Published in: | Environmental Research Letters |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
IOP Publishing
2023
|
Subjects: | |
Online Access: | https://doi.org/10.1088/1748-9326/acde92 https://doaj.org/article/6349b62700ea43ebb6b0d81ea5a3f527 |
id |
ftdoajarticles:oai:doaj.org/article:6349b62700ea43ebb6b0d81ea5a3f527 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:6349b62700ea43ebb6b0d81ea5a3f527 2023-09-05T13:16:11+02:00 Climate change is enforcing physiological changes in Arctic Ecosystems Nima Madani Nicholas C Parazoo Charles E Miller 2023-01-01T00:00:00Z https://doi.org/10.1088/1748-9326/acde92 https://doaj.org/article/6349b62700ea43ebb6b0d81ea5a3f527 EN eng IOP Publishing https://doi.org/10.1088/1748-9326/acde92 https://doaj.org/toc/1748-9326 doi:10.1088/1748-9326/acde92 1748-9326 https://doaj.org/article/6349b62700ea43ebb6b0d81ea5a3f527 Environmental Research Letters, Vol 18, Iss 7, p 074027 (2023) Arctic climate change carbon dynamics Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 article 2023 ftdoajarticles https://doi.org/10.1088/1748-9326/acde92 2023-08-13T00:36:51Z Remote sensing and site-level observations have shown unprecedented changes in Arctic ecosystems owing to climate warming. These observations include greening and browning trends in Arctic vegetation as well as changes in species composition both in the tundra and the boreal forests. Here, we leveraged solar induced chlorophyll fluorescence (SIF) to study changes in ecosystem phenology across the pan-Arctic domain from 2000 to 2020. Ecoregions, as a proxy for plants’ functional traits, were the single most important variable to explain the spatial and phenological heterogeneity in observed SIF trends. We observed unique regional trends in ecosystems responses to climate change affecting the timing of spring photosynthesis onset, magnitude of peak productivity during the growing season (GS) and fall senescence. While, Photosynthetic activity in the early GS showed increasing trends across the vast majority of the pan-Arctic, it tends to decline at the end of the season for nearly half of the land area, including parts of North America but more significantly in central Siberia. The observed changes in phenology highlight the role of biodiversity in regional climate sensitivity and emphasizes the need for better representations of sub-biomes to community level information in Arctic ecosystem process models and projections. These results also highlight the importance of phenology information in ecosystem models for better understanding of the timing and magnitude of carbon uptake in the Arctic domain with accelerated changes in climate. Article in Journal/Newspaper Arctic Climate change Tundra Siberia Directory of Open Access Journals: DOAJ Articles Arctic Browning ENVELOPE(164.050,164.050,-74.617,-74.617) Environmental Research Letters 18 7 074027 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Arctic climate change carbon dynamics Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 |
spellingShingle |
Arctic climate change carbon dynamics Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 Nima Madani Nicholas C Parazoo Charles E Miller Climate change is enforcing physiological changes in Arctic Ecosystems |
topic_facet |
Arctic climate change carbon dynamics Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 |
description |
Remote sensing and site-level observations have shown unprecedented changes in Arctic ecosystems owing to climate warming. These observations include greening and browning trends in Arctic vegetation as well as changes in species composition both in the tundra and the boreal forests. Here, we leveraged solar induced chlorophyll fluorescence (SIF) to study changes in ecosystem phenology across the pan-Arctic domain from 2000 to 2020. Ecoregions, as a proxy for plants’ functional traits, were the single most important variable to explain the spatial and phenological heterogeneity in observed SIF trends. We observed unique regional trends in ecosystems responses to climate change affecting the timing of spring photosynthesis onset, magnitude of peak productivity during the growing season (GS) and fall senescence. While, Photosynthetic activity in the early GS showed increasing trends across the vast majority of the pan-Arctic, it tends to decline at the end of the season for nearly half of the land area, including parts of North America but more significantly in central Siberia. The observed changes in phenology highlight the role of biodiversity in regional climate sensitivity and emphasizes the need for better representations of sub-biomes to community level information in Arctic ecosystem process models and projections. These results also highlight the importance of phenology information in ecosystem models for better understanding of the timing and magnitude of carbon uptake in the Arctic domain with accelerated changes in climate. |
format |
Article in Journal/Newspaper |
author |
Nima Madani Nicholas C Parazoo Charles E Miller |
author_facet |
Nima Madani Nicholas C Parazoo Charles E Miller |
author_sort |
Nima Madani |
title |
Climate change is enforcing physiological changes in Arctic Ecosystems |
title_short |
Climate change is enforcing physiological changes in Arctic Ecosystems |
title_full |
Climate change is enforcing physiological changes in Arctic Ecosystems |
title_fullStr |
Climate change is enforcing physiological changes in Arctic Ecosystems |
title_full_unstemmed |
Climate change is enforcing physiological changes in Arctic Ecosystems |
title_sort |
climate change is enforcing physiological changes in arctic ecosystems |
publisher |
IOP Publishing |
publishDate |
2023 |
url |
https://doi.org/10.1088/1748-9326/acde92 https://doaj.org/article/6349b62700ea43ebb6b0d81ea5a3f527 |
long_lat |
ENVELOPE(164.050,164.050,-74.617,-74.617) |
geographic |
Arctic Browning |
geographic_facet |
Arctic Browning |
genre |
Arctic Climate change Tundra Siberia |
genre_facet |
Arctic Climate change Tundra Siberia |
op_source |
Environmental Research Letters, Vol 18, Iss 7, p 074027 (2023) |
op_relation |
https://doi.org/10.1088/1748-9326/acde92 https://doaj.org/toc/1748-9326 doi:10.1088/1748-9326/acde92 1748-9326 https://doaj.org/article/6349b62700ea43ebb6b0d81ea5a3f527 |
op_doi |
https://doi.org/10.1088/1748-9326/acde92 |
container_title |
Environmental Research Letters |
container_volume |
18 |
container_issue |
7 |
container_start_page |
074027 |
_version_ |
1776197861693718528 |