Wildfire effects on forest carbon and nutrient budgets

Johnson, Dale W.; Murphy, James D.; Walker, R. F.; Glass, Dallas W.; Miller, W. W.

doi:10.1016/j.ecoleng.2007.03.003

Cited by 104 publications

(81 citation statements)

References 23 publications

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“…Minimum mapped BAER polygon was 50 acres whereas treatment areas are 10 to 15 acres [45]. Losses of woody fuels (>1 cm diameter) due to fire are from Homann et al [23]. Unburned Unthinned ACC 0 7 n/a n/a Thinned ATN 0 8 n/a n/a …”

Section: Experimental Designmentioning

confidence: 99%

“…Direct measurements of pre-and post-wildfire samples render assumptions concerning pre-fire conditions unnecessary. Studies in which soil C measurements are available before and after wildfires are rare and lack mention of the presence or absence of charcoal [21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

“…These goals were met by assessment of pre and post-fire soils and woody fuels of the Siskiyou LTEP study [21][22][23].…”

Section: Introductionmentioning

confidence: 99%

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Long and Short-Term Effects of Fire on Soil Charcoal of a Conifer Forest in Southwest Oregon

Pingree

Homann

Morrissette

et al. 2012

Forests

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Abstract:In 2002, the Biscuit Wildfire burned a portion of the previously established, replicated conifer unthinned and thinned experimental units of the Siskiyou Long-Term Ecosystem Productivity (LTEP) experiment, southwest Oregon. Charcoal C in pre and post-fire O horizon and mineral soil was quantified by physical separation and a peroxide-acid digestion method. The abrupt, short-term fire event caused O horizon charcoal C to increase by a factor of ten to >200 kg C ha −1

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Section: Experimental Designmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Long and Short-Term Effects of Fire on Soil Charcoal of a Conifer Forest in Southwest Oregon

Pingree

Homann

Morrissette

et al. 2012

Forests

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“…The site receives most of its 87 cm of mean annual precipitation as snow and has a mean annual temperature of 6.7 • C. The study area is underlain by granitic parent material and is a part of the Cagwin-Rock Outcrop. Soils of the study area are classified as coarse, loamy sand, mixed Typic Cryopsamments Johnson et al, 2007). The dominant vegetation in the area includes white fir (Abies concolor), Jeffery pine (Pinus jeffreyi), and Sugar pine (Pinus lambertianna) in the overstory; and Sierra chinquapin (Castanopsis sempervirens), currant (Ribes spp.…”

Section: Site Descriptionmentioning

confidence: 99%

Post-wildfire Erosion in Mountainous Terrain Leads to Rapid and Major Redistribution of Soil Organic Carbon

et al. 2017

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“…Although soils store 67% of forest carbon (C) [3], the effect of disturbance on mineral soil C in forests is poorly understood [4,5]. Studies have found that impacts of both wildfire and logging on soil organic matter are highly variable, largely related to disturbance severity but also varying geographically and with soil order [4,[6][7][8][9][10][11]. Fire-related losses of carbon from mineral soil are greater in the Pacific Northwest than in other regions of the USA [11], and carbon losses related to logging are greater on Ultisols and Inceptisols [10], both of which occur extensively in the Northwest [12].…”

Section: Introductionmentioning

confidence: 99%

Abiotic and Biotic Soil Characteristics in Old Growth Forests and Thinned or Unthinned Mature Stands in Three Regions of Oregon

et al. 2012

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Abstract:We compared forest floor depth, soil organic matter, soil moisture, anaerobic mineralizable nitrogen (a measure of microbial biomass), denitrification potential, and soil/litter arthropod communities among old growth, unthinned mature stands, and thinned mature stands at nine sites (each with all three stand types) distributed among three regions of Oregon. Mineral soil measurements were restricted to the top 10 cm. Data were analyzed with both multivariate and univariate analyses of variance. Multivariate analyses were conducted with and without soil mesofauna or forest floor mesofauna, as data for those taxa were not collected on some sites. In multivariate analysis with soil mesofauna, the model giving the strongest separation among stand types (P = 0.019) included abundance and richness of soil mesofauna and anaerobic mineralizable nitrogen. The best model with forest floor mesofauna (P = 0.010) included anaerobic mineralizable nitrogen, soil moisture content, and richness of forest floor mesofauna. Old growth had the highest mean values for all variables, and in both models differed significantly from mature stands, while the latter did not differ. Old growth also averaged higher percent soil organic matter, and analysis including that variable was significant but not as strong as without it. Results of the multivariate analyses were mostly supported by univariate analyses, but there were some differences. In univariate analysis, the difference in percent soil organic matter between old growth and thinned mature was due to a single site in which the old growth had exceptionally high soil organic matter; without that site, percent soil organic matter did OPEN ACCESSDiversity 2012, 4 335 not differ between old growth and thinned mature, and a multivariate model containing soil organic matter was not statistically significant. In univariate analyses soil mesofauna had to be compared nonparametrically (because of heavy left-tails) and differed only in the Siskiyou Mountains, where they were most abundant and species rich in old growth forests. Species richness of mineral soil mesofauna correlated significantly (+) with percent soil organic matter and soil moisture, while richness of forest floor mesofauna correlated (+) with depth of the forest floor. Composition of forest floor and soil mesofauna suggest the two groups represent a single community. Soil moisture correlated highly with percent soil organic matter, with no evidence for drying in sites that were sampled relatively late in the summer drought, suggesting losses of surface soil moisture were at least partially replaced by hydraulic lift (which has been demonstrated in other forests of the region).

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Wildfire effects on forest carbon and nutrient budgets

Cited by 104 publications

References 23 publications

Long and Short-Term Effects of Fire on Soil Charcoal of a Conifer Forest in Southwest Oregon

Long and Short-Term Effects of Fire on Soil Charcoal of a Conifer Forest in Southwest Oregon

Post-wildfire Erosion in Mountainous Terrain Leads to Rapid and Major Redistribution of Soil Organic Carbon

Abiotic and Biotic Soil Characteristics in Old Growth Forests and Thinned or Unthinned Mature Stands in Three Regions of Oregon

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