Shrub ring-width measurements of Alnus viridis var. crispa located on a slope over a small hill near the ‘Ice Cut’ at Dalton Highway in Alaska, 1920 - 2010
Warming in recent decades has triggered shrub expansion in arctic and alpine tundra, which is transforming these temperature-limited ecosystems and altering carbon and nutrient cycles, fire regimes, permafrost stability, land-surface climate-feedbacks, and wildlife habitat. Where and when Arctic shr...
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Arctic Data Center
2020
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dataone:doi:10.18739/A24T6F404 2024-06-03T18:46:41+00:00 Shrub ring-width measurements of Alnus viridis var. crispa located on a slope over a small hill near the ‘Ice Cut’ at Dalton Highway in Alaska, 1920 - 2010 Laia Andreu-Hayles Kevin J. Anchukaitis Rosanne D'Arrigo J. Martin-Fernández located on a slope over a small hill near the ‘Ice Cut’ at Dalton Highway, Alaska ENVELOPE(-148.8,-148.8,69.0,69.0) BEGINDATE: 1920-01-01T00:00:00Z ENDDATE: 2010-01-01T00:00:00Z 2020-01-01T00:00:00Z https://doi.org/10.18739/A24T6F404 unknown Arctic Data Center Earth Science > Climate Indicators > Paleoclimate Indicators > Biological Records > Tree Rings Earth Science > Paleoclimate > Land Records > Tree Rings earth science > paleoclimate > tree ring earth science > paleoclimate > tree-ring > width Continent > North America > United States Of America > Alaska> Ice Cut Dalton Highway > LATITUDE 69 > LONGITUDE -148.8 American green alder ALCR geoscientificInformation Alnus viridis var. crispa Dataset 2020 dataone:urn:node:ARCTIC https://doi.org/10.18739/A24T6F404 2024-06-03T18:16:30Z Warming in recent decades has triggered shrub expansion in arctic and alpine tundra, which is transforming these temperature-limited ecosystems and altering carbon and nutrient cycles, fire regimes, permafrost stability, land-surface climate-feedbacks, and wildlife habitat. Where and when Arctic shrub expansion happens in the future will depend in part on how different shrub communities respond to warming air temperatures. Here, we analyze a shrub ring-width network of 18 sites consisting of Salix spp. and Alnus viridis growing across the North Slope of Alaska (68-71 North; 164-149 West) to assess shrub temperature sensitivity and compare radial growth patterns with satellite NDVI (normalized difference vegetation index) data since 1982. All shrub sites and species shared a common year-to-year growth variability despite site differences and had a positive response, ~67% of which were significant (P less than 0.05), to daily maximum air temperatures (Tmax) from ca. May 31 (i.e. Tmax ~6 Celsius (C)) to early July (i.e. Tmax ~12 C). Thus, the month of June had the highest shrub growth-temperature sensitivity and this period coincides with the seasonal increase in temperature and an green-up of tundra indicated by both field observations and the seasonal cycle of NDVI (~photosynthetic activity). Nearly all of the sampled shrubs (98%) initiated their growth after 1960, with 74% initiated since 1980. This post-1980 shrub-recruitment pulse coincided with ~2 C warmer June temperatures compared to prior periods and positive trends in shrub basal area increments (BAI) and peak summer NDVI. Significant correlations between shrub growth and peak summer NDVI indicate these radial growth patterns in shrubs reflect a broader trend of enhanced tundra productivity across the North Slope of Alaska. This archived Paleoclimatology Study is available from the NOAA National Centers for Environmental Information (NCEI), under the World Data Service (WDS) for Paleoclimatology. The associated NCEI study type is Tree Ring. The data include parameters of tree ring with a geographic location of Alaska, United States Of America. The time period coverage is from -27 to -60 in calendar years before present (BP). See metadata information for parameter and study location details. Please cite this study when using the data. Dataset Arctic Ice north slope permafrost Tundra Alaska Arctic Data Center (via DataONE) Arctic ENVELOPE(-148.8,-148.8,69.0,69.0) |
institution |
Open Polar |
collection |
Arctic Data Center (via DataONE) |
op_collection_id |
dataone:urn:node:ARCTIC |
language |
unknown |
topic |
Earth Science > Climate Indicators > Paleoclimate Indicators > Biological Records > Tree Rings Earth Science > Paleoclimate > Land Records > Tree Rings earth science > paleoclimate > tree ring earth science > paleoclimate > tree-ring > width Continent > North America > United States Of America > Alaska> Ice Cut Dalton Highway > LATITUDE 69 > LONGITUDE -148.8 American green alder ALCR geoscientificInformation Alnus viridis var. crispa |
spellingShingle |
Earth Science > Climate Indicators > Paleoclimate Indicators > Biological Records > Tree Rings Earth Science > Paleoclimate > Land Records > Tree Rings earth science > paleoclimate > tree ring earth science > paleoclimate > tree-ring > width Continent > North America > United States Of America > Alaska> Ice Cut Dalton Highway > LATITUDE 69 > LONGITUDE -148.8 American green alder ALCR geoscientificInformation Alnus viridis var. crispa Laia Andreu-Hayles Kevin J. Anchukaitis Rosanne D'Arrigo J. Martin-Fernández Shrub ring-width measurements of Alnus viridis var. crispa located on a slope over a small hill near the ‘Ice Cut’ at Dalton Highway in Alaska, 1920 - 2010 |
topic_facet |
Earth Science > Climate Indicators > Paleoclimate Indicators > Biological Records > Tree Rings Earth Science > Paleoclimate > Land Records > Tree Rings earth science > paleoclimate > tree ring earth science > paleoclimate > tree-ring > width Continent > North America > United States Of America > Alaska> Ice Cut Dalton Highway > LATITUDE 69 > LONGITUDE -148.8 American green alder ALCR geoscientificInformation Alnus viridis var. crispa |
description |
Warming in recent decades has triggered shrub expansion in arctic and alpine tundra, which is transforming these temperature-limited ecosystems and altering carbon and nutrient cycles, fire regimes, permafrost stability, land-surface climate-feedbacks, and wildlife habitat. Where and when Arctic shrub expansion happens in the future will depend in part on how different shrub communities respond to warming air temperatures. Here, we analyze a shrub ring-width network of 18 sites consisting of Salix spp. and Alnus viridis growing across the North Slope of Alaska (68-71 North; 164-149 West) to assess shrub temperature sensitivity and compare radial growth patterns with satellite NDVI (normalized difference vegetation index) data since 1982. All shrub sites and species shared a common year-to-year growth variability despite site differences and had a positive response, ~67% of which were significant (P less than 0.05), to daily maximum air temperatures (Tmax) from ca. May 31 (i.e. Tmax ~6 Celsius (C)) to early July (i.e. Tmax ~12 C). Thus, the month of June had the highest shrub growth-temperature sensitivity and this period coincides with the seasonal increase in temperature and an green-up of tundra indicated by both field observations and the seasonal cycle of NDVI (~photosynthetic activity). Nearly all of the sampled shrubs (98%) initiated their growth after 1960, with 74% initiated since 1980. This post-1980 shrub-recruitment pulse coincided with ~2 C warmer June temperatures compared to prior periods and positive trends in shrub basal area increments (BAI) and peak summer NDVI. Significant correlations between shrub growth and peak summer NDVI indicate these radial growth patterns in shrubs reflect a broader trend of enhanced tundra productivity across the North Slope of Alaska. This archived Paleoclimatology Study is available from the NOAA National Centers for Environmental Information (NCEI), under the World Data Service (WDS) for Paleoclimatology. The associated NCEI study type is Tree Ring. The data include parameters of tree ring with a geographic location of Alaska, United States Of America. The time period coverage is from -27 to -60 in calendar years before present (BP). See metadata information for parameter and study location details. Please cite this study when using the data. |
format |
Dataset |
author |
Laia Andreu-Hayles Kevin J. Anchukaitis Rosanne D'Arrigo J. Martin-Fernández |
author_facet |
Laia Andreu-Hayles Kevin J. Anchukaitis Rosanne D'Arrigo J. Martin-Fernández |
author_sort |
Laia Andreu-Hayles |
title |
Shrub ring-width measurements of Alnus viridis var. crispa located on a slope over a small hill near the ‘Ice Cut’ at Dalton Highway in Alaska, 1920 - 2010 |
title_short |
Shrub ring-width measurements of Alnus viridis var. crispa located on a slope over a small hill near the ‘Ice Cut’ at Dalton Highway in Alaska, 1920 - 2010 |
title_full |
Shrub ring-width measurements of Alnus viridis var. crispa located on a slope over a small hill near the ‘Ice Cut’ at Dalton Highway in Alaska, 1920 - 2010 |
title_fullStr |
Shrub ring-width measurements of Alnus viridis var. crispa located on a slope over a small hill near the ‘Ice Cut’ at Dalton Highway in Alaska, 1920 - 2010 |
title_full_unstemmed |
Shrub ring-width measurements of Alnus viridis var. crispa located on a slope over a small hill near the ‘Ice Cut’ at Dalton Highway in Alaska, 1920 - 2010 |
title_sort |
shrub ring-width measurements of alnus viridis var. crispa located on a slope over a small hill near the ‘ice cut’ at dalton highway in alaska, 1920 - 2010 |
publisher |
Arctic Data Center |
publishDate |
2020 |
url |
https://doi.org/10.18739/A24T6F404 |
op_coverage |
located on a slope over a small hill near the ‘Ice Cut’ at Dalton Highway, Alaska ENVELOPE(-148.8,-148.8,69.0,69.0) BEGINDATE: 1920-01-01T00:00:00Z ENDDATE: 2010-01-01T00:00:00Z |
long_lat |
ENVELOPE(-148.8,-148.8,69.0,69.0) |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Ice north slope permafrost Tundra Alaska |
genre_facet |
Arctic Ice north slope permafrost Tundra Alaska |
op_doi |
https://doi.org/10.18739/A24T6F404 |
_version_ |
1800869680529801216 |