Simulating carbon dynamics of the boreal forest in Pukaskwa National Park

1995 ◽  
Vol 82 (1-2) ◽  
pp. 283-298 ◽  
Author(s):  
I. A. Nalder ◽  
H. G. Merriam
Keyword(s):  
Boreal Forest ◽  
National Park ◽  
Carbon Dynamics ◽  
Pukaskwa National Park

scholarly journals Nitrogen alters carbon dynamics during early succession in boreal forest

2010 ◽  
Vol 42 (7) ◽  
pp. 1157-1164 ◽  
Author(s):  
Steven D. Allison ◽  
Tracy B. Gartner ◽  
Michelle C. Mack ◽  
Krista McGuire ◽  
Kathleen Treseder
Keyword(s):  
Boreal Forest ◽  
Carbon Dynamics ◽  
Early Succession

Carbon balance of the taiga forest within Alaska: present and future

2002 ◽  
Vol 32 (5) ◽  
pp. 757-767 ◽  
Author(s):  
John Yarie ◽  
Sharon Billings
Keyword(s):  
Boreal Forest ◽  
Black Spruce ◽  
White Spruce ◽  
Carbon Dynamics ◽  
Mean Annual Temperature ◽  
Century Model ◽  
Inventory Data ◽  
Balsam Poplar ◽  
Taiga Forest ◽  
Paper Birch

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.

Relations between tree-ring widths, climate, and annual area burned in the boreal forest of Alberta

1995 ◽  
Vol 25 (11) ◽  
pp. 1746-1755 ◽  
Author(s):  
C.P.S. Larsen ◽  
G.M. MacDonald
Keyword(s):  
Boreal Forest ◽  
Tree Ring ◽  
National Park ◽  
Ring Width ◽  
Weather Conditions ◽  
Fire Weather ◽  
Severity Rating ◽  
Area Burned ◽  
Positive Correlations ◽  
Wood Buffalo National Park

Ring-width chronologies from three white spruce (Piceaglauca (Moench) Voss) and two jack pine (Pinusbanksiana Lamb.) sites in the boreal forest of northern Alberta were constructed to determine whether they could provide proxy records of monthly weather, summer fire weather, and the annual area burned by wildfires in Wood Buffalo National Park. All but one of the standard and residual chronologies exhibited significant positive correlations with June precipitation in the growth year, and all but three of the chronologies exhibited positive correlations with precipitation in June, July, or August of the previous year. Three of the residual chronologies also exhibited negative correlations with June temperature in the growth year. Four of the standard and residual chronologies exhibited significant correlations with the Seasonal Severity Rating fire weather variable from Fort Smith, N.W.T. Four of the standard chronologies and three of the residual chronologies exhibited significant correlations with the annual area burned in Wood Buffalo National Park. Significant correlations were also found for some of the standard and residual chronologies with fire weather and annual area burned in the previous year. These results suggest that ring widths and annual area burned in this portion of the boreal forest are sensitive to similar weather conditions. Tree-ring records may therefore provide a useful means of examining decadal to centennial length relations between climate and annual area burned in the boreal forest.

scholarly journals Simulating carbon dynamics along the Boreal Forest Transect Case Study (BFTCS) in central Canada: 1. Model testing

1998 ◽  
Vol 12 (2) ◽  
pp. 381-392 ◽  
Author(s):  
Changhui Peng ◽  
Michael J. Apps ◽  
David T. Price ◽  
Ian A. Nalder ◽  
David H. Halliwell
Keyword(s):  
Boreal Forest ◽  
Carbon Dynamics ◽  
Model Testing ◽  
Central Canada ◽  
Forest Transect

Boreal Vegetation and Soil Carbon Dynamics in Response to a Changing Climate and Soil Variables

2021 ◽  
Author(s):  
John Galbraith ◽  
Pavel Krasilnikov ◽  
Cornelia Rumpel
Keyword(s):  
Boreal Forest ◽  
Vegetation Change ◽  
Precipitation Amount ◽  
Carbon Dynamics ◽  
The Arctic ◽  
Higher Plant ◽  
Rock Fragments ◽  
Changing Climate ◽  
Soil Variables ◽  
Air Temperatures

<p>Many soils in the Boreal forest regions of the Arctic store very large amounts of carbon in the active layer above permafrost, and store significant amounts of carbon within the permafrost. Soils that are well drained, high in rock fragments, shallow to rock or rubble, or covered with ice are exceptions. No other region on Earth stores more carbon on average than the Arctic regions, especially in wetlands. However, changes in vegetation and soil are expected under warming climates. Research questions have arisen about future changes in vegetation and net carbon flux as soil and air temperatures climb, as precipitation amount and type changes, and as the growing season lengthens. A review of recent literature will be conducted to look at effects of vegetation change and annual carbon dynamics in Boreal forest and wetland soils under warming climates. Environmental variables such as soil temperature, hydrology, microbial and higher plant growth, digestibility of young and old carbon, fire, location zone, extent and type of permafrost thaw slow vs sudden collapse), and N and P nutrient balances will affect carbon stocks in addition to changing climate.</p>

Sign in / Sign up

Export Citation Format

Share Document