The response of boreal peatland community composition and NDVI to hydrologic change, warming, and elevated carbon dioxide
Abstract Widespread changes in arctic and boreal Normalized Difference Vegetation Index ( NDVI ) values captured by satellite platforms indicate that northern ecosystems are experiencing rapid ecological change in response to climate warming. Increasing temperatures and altered hydrology are driving...
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Online Access: | http://dx.doi.org/10.1111/gcb.14465 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fgcb.14465 https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.14465 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/gcb.14465 https://onlinelibrary.wiley.com/doi/am-pdf/10.1111/gcb.14465 |
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crwiley:10.1111/gcb.14465 2024-09-30T14:31:39+00:00 The response of boreal peatland community composition and NDVI to hydrologic change, warming, and elevated carbon dioxide McPartland, Mara Y. Kane, Evan S. Falkowski, Michael J. Kolka, Randy Turetsky, Merritt R. Palik, Brian Montgomery, Rebecca A. U.S. Forest Service Oak Ridge National Laboratory National Aeronautics and Space Administration University of Minnesota National Science Foundation 2018 http://dx.doi.org/10.1111/gcb.14465 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fgcb.14465 https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.14465 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/gcb.14465 https://onlinelibrary.wiley.com/doi/am-pdf/10.1111/gcb.14465 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#am http://onlinelibrary.wiley.com/termsAndConditions#vor Global Change Biology volume 25, issue 1, page 93-107 ISSN 1354-1013 1365-2486 journal-article 2018 crwiley https://doi.org/10.1111/gcb.14465 2024-09-17T04:45:00Z Abstract Widespread changes in arctic and boreal Normalized Difference Vegetation Index ( NDVI ) values captured by satellite platforms indicate that northern ecosystems are experiencing rapid ecological change in response to climate warming. Increasing temperatures and altered hydrology are driving shifts in ecosystem biophysical properties that, observed by satellites, manifest as long‐term changes in regional NDVI . In an effort to examine the underlying ecological drivers of these changes, we used field‐scale remote sensing of NDVI to track peatland vegetation in experiments that manipulated hydrology, temperature, and carbon dioxide ( CO 2 ) levels. In addition to NDVI , we measured percent cover by species and leaf area index ( LAI ). We monitored two peatland types broadly representative of the boreal region. One site was a rich fen located near Fairbanks, Alaska, at the Alaska Peatland Experiment ( APEX ), and the second site was a nutrient‐poor bog located in Northern Minnesota within the Spruce and Peatland Responses Under Changing Environments ( SPRUCE ) experiment. We found that NDVI decreased with long‐term reductions in soil moisture at the APEX site, coincident with a decrease in photosynthetic leaf area and the relative abundance of sedges. We observed increasing NDVI with elevated temperature at the SPRUCE site, associated with an increase in the relative abundance of shrubs and a decrease in forb cover. Warming treatments at the SPRUCE site also led to increases in the LAI of the shrub layer. We found no strong effects of elevated CO 2 on community composition. Our findings support recent studies suggesting that changes in NDVI observed from satellite platforms may be the result of changes in community composition and ecosystem structure in response to climate warming. Article in Journal/Newspaper Arctic Alaska Wiley Online Library Arctic Fairbanks Global Change Biology 25 1 93 107 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Widespread changes in arctic and boreal Normalized Difference Vegetation Index ( NDVI ) values captured by satellite platforms indicate that northern ecosystems are experiencing rapid ecological change in response to climate warming. Increasing temperatures and altered hydrology are driving shifts in ecosystem biophysical properties that, observed by satellites, manifest as long‐term changes in regional NDVI . In an effort to examine the underlying ecological drivers of these changes, we used field‐scale remote sensing of NDVI to track peatland vegetation in experiments that manipulated hydrology, temperature, and carbon dioxide ( CO 2 ) levels. In addition to NDVI , we measured percent cover by species and leaf area index ( LAI ). We monitored two peatland types broadly representative of the boreal region. One site was a rich fen located near Fairbanks, Alaska, at the Alaska Peatland Experiment ( APEX ), and the second site was a nutrient‐poor bog located in Northern Minnesota within the Spruce and Peatland Responses Under Changing Environments ( SPRUCE ) experiment. We found that NDVI decreased with long‐term reductions in soil moisture at the APEX site, coincident with a decrease in photosynthetic leaf area and the relative abundance of sedges. We observed increasing NDVI with elevated temperature at the SPRUCE site, associated with an increase in the relative abundance of shrubs and a decrease in forb cover. Warming treatments at the SPRUCE site also led to increases in the LAI of the shrub layer. We found no strong effects of elevated CO 2 on community composition. Our findings support recent studies suggesting that changes in NDVI observed from satellite platforms may be the result of changes in community composition and ecosystem structure in response to climate warming. |
author2 |
U.S. Forest Service Oak Ridge National Laboratory National Aeronautics and Space Administration University of Minnesota National Science Foundation |
format |
Article in Journal/Newspaper |
author |
McPartland, Mara Y. Kane, Evan S. Falkowski, Michael J. Kolka, Randy Turetsky, Merritt R. Palik, Brian Montgomery, Rebecca A. |
spellingShingle |
McPartland, Mara Y. Kane, Evan S. Falkowski, Michael J. Kolka, Randy Turetsky, Merritt R. Palik, Brian Montgomery, Rebecca A. The response of boreal peatland community composition and NDVI to hydrologic change, warming, and elevated carbon dioxide |
author_facet |
McPartland, Mara Y. Kane, Evan S. Falkowski, Michael J. Kolka, Randy Turetsky, Merritt R. Palik, Brian Montgomery, Rebecca A. |
author_sort |
McPartland, Mara Y. |
title |
The response of boreal peatland community composition and NDVI to hydrologic change, warming, and elevated carbon dioxide |
title_short |
The response of boreal peatland community composition and NDVI to hydrologic change, warming, and elevated carbon dioxide |
title_full |
The response of boreal peatland community composition and NDVI to hydrologic change, warming, and elevated carbon dioxide |
title_fullStr |
The response of boreal peatland community composition and NDVI to hydrologic change, warming, and elevated carbon dioxide |
title_full_unstemmed |
The response of boreal peatland community composition and NDVI to hydrologic change, warming, and elevated carbon dioxide |
title_sort |
response of boreal peatland community composition and ndvi to hydrologic change, warming, and elevated carbon dioxide |
publisher |
Wiley |
publishDate |
2018 |
url |
http://dx.doi.org/10.1111/gcb.14465 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fgcb.14465 https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.14465 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/gcb.14465 https://onlinelibrary.wiley.com/doi/am-pdf/10.1111/gcb.14465 |
geographic |
Arctic Fairbanks |
geographic_facet |
Arctic Fairbanks |
genre |
Arctic Alaska |
genre_facet |
Arctic Alaska |
op_source |
Global Change Biology volume 25, issue 1, page 93-107 ISSN 1354-1013 1365-2486 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#am http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/gcb.14465 |
container_title |
Global Change Biology |
container_volume |
25 |
container_issue |
1 |
container_start_page |
93 |
op_container_end_page |
107 |
_version_ |
1811636092358623232 |