Immediate Effects of Prescribed Burning on Mineral Soil Nitrogen in Ponderosa Pine of New Mexico

Kovacic, David A.; Swift, David M.; Ellis, James E.; Hakonson, T. E.

doi:10.1097/00010694-198601000-00011

Cited by 57 publications

(40 citation statements)

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“…Nutrient transformations occur when excessive heat is applied to soils. The effects on ammonium and nitrate concentrations are variable (13,29,33), while concentrations of phosphorus, potassium, and magnesium are reported to increase (46). Finally, most studies report an increase in soil pH following fires, due to the release of basic cations during combustion and their deposition on the soil surface (2,40).…”

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confidence: 99%

Effects of Wildfire and Harvest Disturbances on Forest Soil Bacterial Communities

Smith

Kishchuk

Mohn

2008

Appl Environ Microbiol

137

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Wildfires and harvesting are important disturbances to forest ecosystems, but their effects on soil microbial communities are not well characterized and have not previously been compared directly. This study was conducted at sites with similar soil, climatic, and other properties in a spruce-dominated boreal forest near Chisholm, Alberta, Canada. Soil microbial communities were assessed following four treatments: control, harvest, burn, and burn plus timber salvage (burn-salvage). Burn treatments were at sites affected by a large wildfire in May 2001, and the communities were sampled 1 year after the fire. Microbial biomass carbon decreased 18%, 74%, and 53% in the harvest, burn, and burn-salvage treatments, respectively. Microbial biomass nitrogen decreased 25% in the harvest treatment, but increased in the burn treatments, probably because of microbial assimilation of the increased amounts of available NH 4 ؉ and NO 3 ؊ due to burning. Bacterial community composition was analyzed by nonparametric ordination of molecular fingerprint data of 119 samples from both ribosomal intergenic spacer analysis (RISA) and rRNA gene denaturing gradient gel electrophoresis. On the basis of multiresponse permutation procedures, community composition was significantly different among all treatments, with the greatest differences between the two burned treatments versus the two unburned treatments. The sequencing of DNA bands from RISA fingerprints revealed distinct distributions of bacterial divisions among the treatments. Gamma-and Alphaproteobacteria were highly characteristic of the unburned treatments, while Betaproteobacteria and members of Bacillus were highly characteristic of the burned treatments. Wildfire had distinct and more pronounced effects on the soil microbial community than did harvesting.

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Effects of Wildfire and Harvest Disturbances on Forest Soil Bacterial Communities

Smith

Kishchuk

Mohn

2008

Appl Environ Microbiol

137

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“…However, many of the studies on burning were carried out in the laboratory, while studies in situ have tended to focus on the N dynamics or mineralization process from several months to several years after burning. There are a few studies (Kovacic et al 1986;Su et al 1996) related to the immediate effects of burning on soil N dynamics and microbes in situ.…”

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Effect of burning on soil organic matter content and N mineralization under shifting cultivation system of Karen people in Northern Thailand

Tanaka

Ando

Funakawa

et al. 2001

Soil Science and Plant Nutrition

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“…Fulé et al (2002) found that thinning reduced canopy fuels and modeled fi re severity. Kovacic et al 1986, Landsberg et al 1984, Sackett and Haase 1998, and Sweeney and Biswell 1961 Cavity and foliar nesting bird species used trees that were larger in diameter than the stand average, regardless of treatment, suggesting that management activities that promote larger trees will favor these species.…”

Section: Southeast Plainsmentioning

confidence: 99%

Principal short-term findings of the National Fire and Fire Surrogate study

McIver¹,

Erickson²,

Youngblood³

2012

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Immediate Effects of Prescribed Burning on Mineral Soil Nitrogen in Ponderosa Pine of New Mexico

Cited by 57 publications

References 0 publications

Effects of Wildfire and Harvest Disturbances on Forest Soil Bacterial Communities

Effects of Wildfire and Harvest Disturbances on Forest Soil Bacterial Communities

Effect of burning on soil organic matter content and N mineralization under shifting cultivation system of Karen people in Northern Thailand

Principal short-term findings of the National Fire and Fire Surrogate study

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