scholarly journals Spatiotemporal analysis of black spruce forest soils and implications for the fate of C

2012 ◽  
Vol 117 (G1) ◽  
Author(s):  
Jennifer W. Harden ◽  
Kristen L. Manies ◽  
Jonathan O'Donnell ◽  
Kristofer Johnson ◽  
Steve Frolking ◽  
...  
Keyword(s):  
Forest Soils ◽  
Black Spruce ◽  
Spatiotemporal Analysis ◽  
Spruce Forest

scholarly journals Priming Effects in Boreal Black Spruce Forest Soils: Quantitative Evaluation and Sensitivity Analysis

PLoS ONE ◽  
2013 ◽  
Vol 8 (10) ◽  
pp. e77880 ◽  
Author(s):  
Zhaosheng Fan ◽  
Julie D. Jastrow ◽  
Chao Liang ◽  
Roser Matamala ◽  
Raymond Michael Miller
Keyword(s):  
Sensitivity Analysis ◽  
Quantitative Evaluation ◽  
Forest Soils ◽  
Black Spruce ◽  
Spruce Forest ◽  
Priming Effects

Topographic controls on black carbon accumulation in Alaskan black spruce forest soils: implications for organic matter dynamics

2010 ◽  
Vol 100 (1-3) ◽  
pp. 39-56 ◽  
Author(s):  
E. S. Kane ◽  
W. C. Hockaday ◽  
M. R. Turetsky ◽  
C. A. Masiello ◽  
D. W. Valentine ◽  
...  
Keyword(s):  
Organic Matter ◽  
Black Carbon ◽  
Forest Soils ◽  
Black Spruce ◽  
Carbon Accumulation ◽  
Spruce Forest ◽  
Topographic Controls ◽  
Organic Matter Dynamics

Greenhouse gas fluxes from boreal forest soils during the snow-free period in Quebec, Canada

2009 ◽  
Vol 39 (3) ◽  
pp. 666-680 ◽  
Author(s):  
Sami Ullah ◽  
Rebeccah Frasier ◽  
Luc Pelletier ◽  
Tim R. Moore
Keyword(s):  
Forest Soil ◽  
Forest Soils ◽  
Pinus Banksiana ◽  
Deciduous Forest ◽  
Black Spruce ◽  
Jack Pine ◽  
Wetland Soil ◽  
Spruce Forest ◽  
Soil N Mineralization ◽  
Aspen Forest

This paper presents soil fluxes of methane (CH4), nitrous oxide (N2O), and carbon dioxide (CO2) from 12 sites located in four major forest types, black spruce ( Picea mariana (Mill.) BSP), jack pine ( Pinus banksiana Lamb.), aspen ( Populus spp.), and alder ( Alnus spp.) stands, in the Eastmain and Chibougamau regions of Quebec. Fluxes were determined with closed chambers during the snow-free period from May to October 2007. Well-drained black spruce, jack pine, and aspen forest soils were net sinks of atmospheric CH4 (–0.33 ± 0.11 mg·m–2·day–1), while alder-dominated wetland soils were sources of CH4 (0.45 ± 0.12 mg·m–2·day–1). The cut-over alder wetland soil produced 131 times more CH4 than the undisturbed wetland soil. Soil moisture and temperature mainly regulated CH4 fluxes. N2O fluxes from these forest soils were highly variable and smaller (1.6 ± 0.33 µg N·m–2·h–1) than those from deciduous forest soils. N2O emission from the cut-over black spruce forest soil was 2.7 times greater than that from the mature black spruce forest soil. Large C/N ratios (27 to 78) and slow soil N mineralization and nitrification rates in these forest soils may have led to small N2O fluxes. CO2 emissions from these forest soils, ranging from 0.20 to 2.7 g·m–2·day–1, were mainly controlled by soil temperature.

Potential leaching of elements in three Danish Spruce forest soils

1986 ◽  
Vol 31 (1-2) ◽  
pp. 377-383 ◽  
Author(s):  
Lennart Rasmussen
Keyword(s):  
Forest Soils ◽  
Spruce Forest

scholarly journals A long-term record of carbon exchange in a boreal black spruce forest: means, responses to interannual variability, and decadal trends

2007 ◽  
Vol 13 (3) ◽  
pp. 577-590 ◽  
Author(s):  
ALLISON L. DUNN ◽  
CAROL C. BARFORD ◽  
STEVEN C. WOFSY ◽  
MICHAEL L. GOULDEN ◽  
BRUCE C. DAUBE
Keyword(s):  
Interannual Variability ◽  
Black Spruce ◽  
Spruce Forest ◽  
Carbon Exchange

Net Ecosystem Production of Two Contrasting Boreal Black Spruce Forest Communities

Ecosystems ◽  
2003 ◽  
Vol 6 (3) ◽  
pp. 248-260 ◽  
Author(s):  
Kari E. B. O'Connell ◽  
Stith T. Gower ◽  
John M. Norman
Keyword(s):  
Black Spruce ◽  
Net Ecosystem Production ◽  
Spruce Forest ◽  
Forest Communities ◽  
Ecosystem Production

Simulated Responses of Red Spruce Forest Soils to Reduced Sulfur and Nitrogen Deposition

1996 ◽  
Vol 25 (6) ◽  
pp. 1300-1309 ◽  
Author(s):  
D. W. Johnson ◽  
R. B. Susfalk ◽  
P. F. Brewer
Keyword(s):  
Nitrogen Deposition ◽  
Forest Soils ◽  
Red Spruce ◽  
Spruce Forest ◽  
Reduced Sulfur

scholarly journals Study of Fuel-Smoke Dynamics in a Prescribed Fire of Boreal Black Spruce Forest through Field-Deployable Micro Sensor Systems

Fire ◽  
2020 ◽  
Vol 3 (3) ◽  
pp. 30
Author(s):  
Quamrul Huda ◽  
David Lyder ◽  
Marty Collins ◽  
Dave Schroeder ◽  
Dan K. Thompson ◽  
...  
Keyword(s):  
Prescribed Fire ◽  
Half Life ◽  
Black Spruce ◽  
Wildland Fire ◽  
Near Field ◽  
Balance Model ◽  
Sensor Systems ◽  
Spruce Forest ◽  
Combustion Dynamics ◽  
Micro Sensor

Understanding the combustion dynamics of fuels, and the generation and propagation of smoke in a wildland fire, can inform short-range and long-range pollutant transport models, and help address and mitigate air quality concerns in communities. Smoldering smoke can cause health issues in nearby valley bottoms, and can create hazardous road conditions due to low-visibility. We studied near-field smoke dynamics in a prescribed fire of 3.4 hectares of land in a boreal black spruce forest in central Alberta. Smoke generated from the fire was monitored through a network of five field-deployable micro sensor systems. Sensors were placed within 500–1000 m of the fire area at various angles in downwind. Smoke generated from flaming and smoldering combustions showed distinct characteristics. The propagation rates of flaming and smoldering smoke, based on the fine particulate (PM2.5) component, were 0.8 and 0.2 m/s, respectively. The flaming smoke was characterized by sharp rise of PM2.5 in air with concentrations of up to 940 µg/m3, followed by an exponential decay with a half-life of ~10 min. Smoldering combustion related smoke contributed to PM2.5 concentrations above 1000 µg/m3 with slower decay half-life of ~18 min. PM2.5 emissions from the burn area during flaming and smoldering phases, integrated over the combustion duration of 2.5 h, were ~15 and ~16 kilograms, respectively, as estimated by our mass balance model.

Sign in / Sign up

Export Citation Format

Share Document