The Sensitivity of Ecosystem CO2 Flux in the Boreal Forests of Interior Alaska to Climatic Parameters
An ecophysiological model of carbon uptake and release was used to examine C02 fluxes in 17 mature forests near Fairbanks, Alaska. Under extant climatic conditions, ecosystem C02 flux ranged from a loss of 212 g C02 m-2 yr-1 in a black spruce stand to an uptake of 2882 g C02 m-2 yr-1 in a birch stan...
Main Author: | |
---|---|
Other Authors: | |
Format: | Text |
Language: | English |
Published: |
1992
|
Subjects: | |
Online Access: | http://www.dtic.mil/docs/citations/ADP007314 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADP007314 |
id |
ftdtic:ADP007314 |
---|---|
record_format |
openpolar |
spelling |
ftdtic:ADP007314 2023-05-15T15:07:06+02:00 The Sensitivity of Ecosystem CO2 Flux in the Boreal Forests of Interior Alaska to Climatic Parameters Bonan, Gordon B. NATIONAL CENTER FOR ATMOSPHERIC RESEARCH BOULDER CO 1992-03 text/html http://www.dtic.mil/docs/citations/ADP007314 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADP007314 en eng http://www.dtic.mil/docs/citations/ADP007314 APPROVED FOR PUBLIC RELEASE DTIC AND NTIS Ecology Forestry Inorganic Chemistry Meteorology *ALASKA *ECOSYSTEMS *CARBON DIOXIDE *CLIMATE *FLUX(RATE) AIR AVAILABILITY CARBON FORESTS TUNDRA ARCTIC REGIONS MODELS NETS NUTRIENTS RELEASE SOILS TEMPERATURE TREES SYMPOSIA PARAMETERS Component Reports *Boreal forests Soil warning Spruce trees Birch trees Text 1992 ftdtic 2016-02-19T17:39:36Z An ecophysiological model of carbon uptake and release was used to examine C02 fluxes in 17 mature forests near Fairbanks, Alaska. Under extant climatic conditions, ecosystem C02 flux ranged from a loss of 212 g C02 m-2 yr-1 in a black spruce stand to an uptake of 2882 g C02 m-2 yr-1 in a birch stand. Increased air temperature resulted in substantial soil warming. Without concomitant increases in nutrient availability, large climatic warming reduced ecosystem C02 uptake in all forests. Deciduous and white spruce stands were still a sink for C02, but black spruce stands became, on average, a net source Of CO2- With increased nutrient availability that might accompany soil warming, enhanced tree growth increased C02 uptake in conifer stands. This article is from 'Proceedings of the International Conference on the Role of the Polar Regions in Global Change Held in Fairbanks, Alaska on 11-15 June 990. Volume 2', AD-A253 028, p391-395. See also Volume 1, AD-A253 027. Text Arctic Tundra Alaska Defense Technical Information Center: DTIC Technical Reports database Arctic Fairbanks |
institution |
Open Polar |
collection |
Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
Ecology Forestry Inorganic Chemistry Meteorology *ALASKA *ECOSYSTEMS *CARBON DIOXIDE *CLIMATE *FLUX(RATE) AIR AVAILABILITY CARBON FORESTS TUNDRA ARCTIC REGIONS MODELS NETS NUTRIENTS RELEASE SOILS TEMPERATURE TREES SYMPOSIA PARAMETERS Component Reports *Boreal forests Soil warning Spruce trees Birch trees |
spellingShingle |
Ecology Forestry Inorganic Chemistry Meteorology *ALASKA *ECOSYSTEMS *CARBON DIOXIDE *CLIMATE *FLUX(RATE) AIR AVAILABILITY CARBON FORESTS TUNDRA ARCTIC REGIONS MODELS NETS NUTRIENTS RELEASE SOILS TEMPERATURE TREES SYMPOSIA PARAMETERS Component Reports *Boreal forests Soil warning Spruce trees Birch trees Bonan, Gordon B. The Sensitivity of Ecosystem CO2 Flux in the Boreal Forests of Interior Alaska to Climatic Parameters |
topic_facet |
Ecology Forestry Inorganic Chemistry Meteorology *ALASKA *ECOSYSTEMS *CARBON DIOXIDE *CLIMATE *FLUX(RATE) AIR AVAILABILITY CARBON FORESTS TUNDRA ARCTIC REGIONS MODELS NETS NUTRIENTS RELEASE SOILS TEMPERATURE TREES SYMPOSIA PARAMETERS Component Reports *Boreal forests Soil warning Spruce trees Birch trees |
description |
An ecophysiological model of carbon uptake and release was used to examine C02 fluxes in 17 mature forests near Fairbanks, Alaska. Under extant climatic conditions, ecosystem C02 flux ranged from a loss of 212 g C02 m-2 yr-1 in a black spruce stand to an uptake of 2882 g C02 m-2 yr-1 in a birch stand. Increased air temperature resulted in substantial soil warming. Without concomitant increases in nutrient availability, large climatic warming reduced ecosystem C02 uptake in all forests. Deciduous and white spruce stands were still a sink for C02, but black spruce stands became, on average, a net source Of CO2- With increased nutrient availability that might accompany soil warming, enhanced tree growth increased C02 uptake in conifer stands. This article is from 'Proceedings of the International Conference on the Role of the Polar Regions in Global Change Held in Fairbanks, Alaska on 11-15 June 990. Volume 2', AD-A253 028, p391-395. See also Volume 1, AD-A253 027. |
author2 |
NATIONAL CENTER FOR ATMOSPHERIC RESEARCH BOULDER CO |
format |
Text |
author |
Bonan, Gordon B. |
author_facet |
Bonan, Gordon B. |
author_sort |
Bonan, Gordon B. |
title |
The Sensitivity of Ecosystem CO2 Flux in the Boreal Forests of Interior Alaska to Climatic Parameters |
title_short |
The Sensitivity of Ecosystem CO2 Flux in the Boreal Forests of Interior Alaska to Climatic Parameters |
title_full |
The Sensitivity of Ecosystem CO2 Flux in the Boreal Forests of Interior Alaska to Climatic Parameters |
title_fullStr |
The Sensitivity of Ecosystem CO2 Flux in the Boreal Forests of Interior Alaska to Climatic Parameters |
title_full_unstemmed |
The Sensitivity of Ecosystem CO2 Flux in the Boreal Forests of Interior Alaska to Climatic Parameters |
title_sort |
sensitivity of ecosystem co2 flux in the boreal forests of interior alaska to climatic parameters |
publishDate |
1992 |
url |
http://www.dtic.mil/docs/citations/ADP007314 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADP007314 |
geographic |
Arctic Fairbanks |
geographic_facet |
Arctic Fairbanks |
genre |
Arctic Tundra Alaska |
genre_facet |
Arctic Tundra Alaska |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/ADP007314 |
op_rights |
APPROVED FOR PUBLIC RELEASE |
_version_ |
1766338662094602240 |