scholarly journals Fire as the dominant driver of central Canadian boreal forest carbon balance

Nature ◽  
2007 ◽  
Vol 450 (7166) ◽  
pp. 89-92 ◽  
Author(s):  
Ben Bond-Lamberty ◽  
Scott D. Peckham ◽  
Douglas E. Ahl ◽  
Stith T. Gower
Keyword(s):  
Boreal Forest ◽  
Carbon Balance ◽  
Forest Carbon ◽  
Canadian Boreal Forest

scholarly journals Sensitivity of Boreal Forest Carbon Balance to Soil Thaw

Science ◽  
1998 ◽  
Vol 279 (5348) ◽  
pp. 214-217 ◽  
Author(s):  
M. L. Goulden ◽  
S. C. Wofsy ◽  
J. W. Harden ◽  
S. E. Trumbore ◽  
P. M. Crill ◽  
...  
Keyword(s):  
Boreal Forest ◽  
Carbon Balance ◽  
Forest Carbon

scholarly journals Footprint of temperature changes in the temperate and boreal forest carbon balance

2009 ◽  
Vol 36 (7) ◽  
pp. n/a-n/a ◽  
Author(s):  
Shilong Piao ◽  
Pierre Friedlingstein ◽  
Philippe Ciais ◽  
Philippe Peylin ◽  
Biao Zhu ◽  
...  
Keyword(s):  
Boreal Forest ◽  
Carbon Balance ◽  
Forest Carbon ◽  
Temperature Changes

scholarly journals Simulating boreal forest carbon dynamics after stand-replacing fire disturbance: insights from a global process-based vegetation model

2013 ◽  
Vol 10 (12) ◽  
pp. 8233-8252 ◽  
Author(s):  
C. Yue ◽  
P. Ciais ◽  
S. Luyssaert ◽  
P. Cadule ◽  
J. Harden ◽  
...  
Keyword(s):  
Boreal Forest ◽  
Boreal Forests ◽  
Carbon Balance ◽  
Carbon Stock ◽  
Forest Carbon ◽  
Biomass Carbon ◽  
Co2 Fluxes ◽  
Vegetation Model ◽  
Area Index ◽  
Simulation Results

Abstract. Stand-replacing fires are the dominant fire type in North American boreal forests. They leave a historical legacy of a mosaic landscape of different aged forest cohorts. This forest age dynamics must be included in vegetation models to accurately quantify the role of fire in the historical and current regional forest carbon balance. The present study adapted the global process-based vegetation model ORCHIDEE to simulate the CO2 emissions from boreal forest fire and the subsequent recovery after a stand-replacing fire; the model represents postfire new cohort establishment, forest stand structure and the self-thinning process. Simulation results are evaluated against observations of three clusters of postfire forest chronosequences in Canada and Alaska. The variables evaluated include: fire carbon emissions, CO2 fluxes (gross primary production, total ecosystem respiration and net ecosystem exchange), leaf area index, and biometric measurements (aboveground biomass carbon, forest floor carbon, woody debris carbon, stand individual density, stand basal area, and mean diameter at breast height). When forced by local climate and the atmospheric CO2 history at each chronosequence site, the model simulations generally match the observed CO2 fluxes and carbon stock data well, with model-measurement mean square root of deviation comparable with the measurement accuracy (for CO2 flux ~100 g C m−2 yr−1, for biomass carbon ~1000 g C m−2 and for soil carbon ~2000 g C m−2). We find that the current postfire forest carbon sink at the evaluation sites, as observed by chronosequence methods, is mainly due to a combination of historical CO2 increase and forest succession. Climate change and variability during this period offsets some of these expected carbon gains. The negative impacts of climate were a likely consequence of increasing water stress caused by significant temperature increases that were not matched by concurrent increases in precipitation. Our simulation results demonstrate that a global vegetation model such as ORCHIDEE is able to capture the essential ecosystem processes in fire-disturbed boreal forests and produces satisfactory results in terms of both carbon fluxes and carbon-stock evolution after fire. This makes the model suitable for regional simulations in boreal regions where fire regimes play a key role in the ecosystem carbon balance.

scholarly journals Simulating boreal forest carbon dynamics after stand-replacing fire disturbance: insights from a global process-based vegetation model

2013 ◽  
Vol 10 (4) ◽  
pp. 7299-7366 ◽  
Author(s):  
C. Yue ◽  
P. Ciais ◽  
S. Luyssaert ◽  
P. Cadule ◽  
J. Harden ◽  
...  
Keyword(s):  
Boreal Forest ◽  
Carbon Balance ◽  
Carbon Dynamics ◽  
Forest Carbon ◽  
Atmospheric Co2 ◽  
Fire Disturbance ◽  
Biomass Carbon ◽  
Co2 Fluxes ◽  
Vegetation Model ◽  
Simulation Results

Abstract. Stand-replacing fires are the dominant fire type in North American boreal forest and leave a historical legacy of a mosaic landscape of different aged forest cohorts. To accurately quantify the role of fire in historical and current regional forest carbon balance using models, one needs to explicitly simulate the new forest cohort that is established after fire. The present study adapted the global process-based vegetation model ORCHIDEE to simulate boreal forest fire CO2 emissions and follow-up recovery after a stand-replacing fire, with representation of postfire new cohort establishment, forest stand structure and the following self-thinning process. Simulation results are evaluated against three clusters of postfire forest chronosequence observations in Canada and Alaska. Evaluation variables for simulated postfire carbon dynamics include: fire carbon emissions, CO2 fluxes (gross primary production, total ecosystem respiration and net ecosystem exchange), leaf area index (LAI), and biometric measurements (aboveground biomass carbon, forest floor carbon, woody debris carbon, stand individual density, stand basal area, and mean diameter at breast height). The model simulation results, when forced by local climate and the atmospheric CO2 history on each chronosequence site, generally match the observed CO2 fluxes and carbon stock data well, with model-measurement mean square root of deviation comparable with measurement accuracy (for CO2 flux ~100 g C m−2 yr−1, for biomass carbon ~1000 g C m−2 and for soil carbon ~2000 g C m−2). We find that current postfire forest carbon sink on evaluation sites observed by chronosequence methods is mainly driven by historical atmospheric CO2 increase when forests recover from fire disturbance. Historical climate generally exerts a negative effect, probably due to increasing water stress caused by significant temperature increase without sufficient increase in precipitation. Our simulation results demonstrate that a global vegetation model such as ORCHIDEE is able to capture the essential ecosystem processes in fire-disturbed boreal forests and produces satisfactory results in terms of both carbon fluxes and carbon stocks evolution after fire, making it suitable for regional simulations in boreal regions where fire regimes play a key role on ecosystem carbon balance.

scholarly journals Forest bioenergy harvesting changes carbon balance and risks biodiversity in boreal forest landscapes

2020 ◽  
Vol 50 (11) ◽  
pp. 1184-1193
Author(s):  
Anna Repo ◽  
Kyle Eyvindson ◽  
Panu Halme ◽  
Mikko Mönkkönen
Keyword(s):  
Boreal Forest ◽  
Carbon Balance ◽  
Species Conservation ◽  
Carbon Stocks ◽  
Habitat Associations ◽  
Forest Carbon ◽  
Modeling Framework ◽  
Potential Conflict ◽  
Forest Residue ◽  
Forest Residue Harvesting

Climate solutions relying on forest bioenergy may be in conflict with carbon sequestration and storage by forests as well as conservation of biodiversity. We quantified effects of forest-residue harvesting for bioenergy on both forest carbon balance and biodiversity in a boreal forest landscape. Through a modeling framework, we simulated forest development in four real watersheds with three scenarios: (i) with and (ii) without forest-residue harvesting and (iii) set aside to study the conservation potential of these landscapes in the future without management. We simulated changes in the forest carbon stocks and in the quality and quantity of deadwood resources for 100 years and combined this information with the information on species habitat associations based on expert judgements. In this study, current practices of slash and stump harvesting reduced forest carbon stocks and deadwood volumes at the landscape scale and, consequently, halved the emissions savings that can be obtained with bioenergy. In addition, logging-residue harvesting reduced 15%–21% of the combined species conservation capacity of the landscape for red-listed, saproxylic species compared with forest management without bioenergy harvesting. Furthermore, the results indicated a potential conflict between areas of high bioenergy potential and high conservation potential.

scholarly journals Addendum: Nutrient availability as the key regulator of global forest carbon balance

2014 ◽  
Vol 4 (7) ◽  
pp. 643-643 ◽  
Author(s):  
M. Fernández-Martínez ◽  
S. Vicca ◽  
I. A. Janssens ◽  
J. Sardans ◽  
S. Luyssaert ◽  
...  
Keyword(s):  
Nutrient Availability ◽  
Carbon Balance ◽  
Forest Carbon

Two new species of Oidiodendron from boreal forest soils

1968 ◽  
Vol 46 (3) ◽  
pp. 203-206 ◽  
Author(s):  
R. A. A. Morrall
Keyword(s):  
New Species ◽  
Boreal Forest ◽  
Forest Soils ◽  
Nomen Dubium ◽  
Two New Species ◽  
Canadian Boreal Forest

Oidiodendron periconioides Morrall sp. nov. and O. chlamydosporicum Morrall sp. nov. are described from Canadian boreal forest soils. O. gracile Zhdanova is considered to be a nomen dubium.

Fungi of the Canadian boreal forest region: Catulus aquilonius gen. et sp.nov., a hyperparasite on Seuratia millardetii

1978 ◽  
Vol 56 (19) ◽  
pp. 2344-2347 ◽  
Author(s):  
D. Malloch ◽  
C. T. Rogerson
Keyword(s):  
Boreal Forest ◽  
New Genus ◽  
New Genus And Species ◽  
Forest Region ◽  
Canadian Boreal Forest ◽  
Boreal Forest Region

A new genus and species of ascomycetes, Catulus aquilonius, is described, illustrated, and tentatively assigned to the Mycosphaerellaceae. It grows as a parasite on stromata of Seuratia millardetii (Raciborski) Meeker and is characterized by two-celled, setulose ascospores.

Sign in / Sign up

Export Citation Format

Share Document