Carbon balance of the taiga forest within Alaska: present and future
Forest biomass, rates of production, and carbon dynamics are a function of climate, plant species present, and the structure of the soil organic and mineral layers. Inventory data from the U.S. Forest Service (USFS) Inventory Analysis Unit was used to develop estimates of the land area represented b...
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crcansciencepubl:10.1139/x01-075 2024-05-19T07:49:22+00:00 Carbon balance of the taiga forest within Alaska: present and future Yarie, John Billings, Sharon 2002 http://dx.doi.org/10.1139/x01-075 http://www.nrcresearchpress.com/doi/pdf/10.1139/x01-075 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Forest Research volume 32, issue 5, page 757-767 ISSN 0045-5067 1208-6037 journal-article 2002 crcansciencepubl https://doi.org/10.1139/x01-075 2024-05-02T06:51:24Z Forest biomass, rates of production, and carbon dynamics are a function of climate, plant species present, and the structure of the soil organic and mineral layers. Inventory data from the U.S. Forest Service (USFS) Inventory Analysis Unit was used to develop estimates of the land area represented by the major overstory species at various age-classes. The CENTURY model was then used to develop an estimate of carbon dynamics throughout the age sequence of forest development for the major ecosystem types. The estimated boreal forest area in Alaska, based on USFS inventory data is 17 244 098 ha. The total aboveground biomass within the Alaska boreal forest was estimated to be 815 330 000 Mg. The CENTURY model estimated maximum net ecosystem production (NEP) at 137, 88, 152, 99, and 65 g·m 2 ·year 1 for quaking aspen (Populus tremuloides Michx.), paper birch (Betula papyrifera Marsh.), balsam poplar (Populus balsamifera L.), white spruce (Picea glauca (Moench) Voss), and black spruce (Picea mariana (Mill.) BSP) forest stands, respectively. These values were predicted at stand ages of 80, 60, 41, 68, and 100 years, respectively. The minimum values of NEP for aspen, paper birch, balsam poplar, white spruce, and black spruce were 171, 166, 240, 300, and 61 g·m 2 ·year 1 at the ages of 1, 1, 1, 1, and 12, respectively. NEP became positive at the ages of 14, 19, 16, 13, and 34 for aspen, birch, balsam poplar, white spruce, and black spruce ecosystems, respectively. A 5°C increase in mean annual temperature resulted in a higher amount of predicted production and decomposition in all ecosystems, resulting in an increase of NEP. We estimate that the current vegetation absorbs approximately 9.65 Tg of carbon per year within the boreal forest of the state. If there is a 5°C increase in the mean annual temperature with no change in precipitation we estimated that NEP for the boreal forest in Alaska would increase to 16.95 Tg of carbon per year. Article in Journal/Newspaper taiga Alaska Canadian Science Publishing Canadian Journal of Forest Research 32 5 757 767 |
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Open Polar |
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Canadian Science Publishing |
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crcansciencepubl |
language |
English |
description |
Forest biomass, rates of production, and carbon dynamics are a function of climate, plant species present, and the structure of the soil organic and mineral layers. Inventory data from the U.S. Forest Service (USFS) Inventory Analysis Unit was used to develop estimates of the land area represented by the major overstory species at various age-classes. The CENTURY model was then used to develop an estimate of carbon dynamics throughout the age sequence of forest development for the major ecosystem types. The estimated boreal forest area in Alaska, based on USFS inventory data is 17 244 098 ha. The total aboveground biomass within the Alaska boreal forest was estimated to be 815 330 000 Mg. The CENTURY model estimated maximum net ecosystem production (NEP) at 137, 88, 152, 99, and 65 g·m 2 ·year 1 for quaking aspen (Populus tremuloides Michx.), paper birch (Betula papyrifera Marsh.), balsam poplar (Populus balsamifera L.), white spruce (Picea glauca (Moench) Voss), and black spruce (Picea mariana (Mill.) BSP) forest stands, respectively. These values were predicted at stand ages of 80, 60, 41, 68, and 100 years, respectively. The minimum values of NEP for aspen, paper birch, balsam poplar, white spruce, and black spruce were 171, 166, 240, 300, and 61 g·m 2 ·year 1 at the ages of 1, 1, 1, 1, and 12, respectively. NEP became positive at the ages of 14, 19, 16, 13, and 34 for aspen, birch, balsam poplar, white spruce, and black spruce ecosystems, respectively. A 5°C increase in mean annual temperature resulted in a higher amount of predicted production and decomposition in all ecosystems, resulting in an increase of NEP. We estimate that the current vegetation absorbs approximately 9.65 Tg of carbon per year within the boreal forest of the state. If there is a 5°C increase in the mean annual temperature with no change in precipitation we estimated that NEP for the boreal forest in Alaska would increase to 16.95 Tg of carbon per year. |
format |
Article in Journal/Newspaper |
author |
Yarie, John Billings, Sharon |
spellingShingle |
Yarie, John Billings, Sharon Carbon balance of the taiga forest within Alaska: present and future |
author_facet |
Yarie, John Billings, Sharon |
author_sort |
Yarie, John |
title |
Carbon balance of the taiga forest within Alaska: present and future |
title_short |
Carbon balance of the taiga forest within Alaska: present and future |
title_full |
Carbon balance of the taiga forest within Alaska: present and future |
title_fullStr |
Carbon balance of the taiga forest within Alaska: present and future |
title_full_unstemmed |
Carbon balance of the taiga forest within Alaska: present and future |
title_sort |
carbon balance of the taiga forest within alaska: present and future |
publisher |
Canadian Science Publishing |
publishDate |
2002 |
url |
http://dx.doi.org/10.1139/x01-075 http://www.nrcresearchpress.com/doi/pdf/10.1139/x01-075 |
genre |
taiga Alaska |
genre_facet |
taiga Alaska |
op_source |
Canadian Journal of Forest Research volume 32, issue 5, page 757-767 ISSN 0045-5067 1208-6037 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/x01-075 |
container_title |
Canadian Journal of Forest Research |
container_volume |
32 |
container_issue |
5 |
container_start_page |
757 |
op_container_end_page |
767 |
_version_ |
1799467866064420864 |