Restoration treatments in a Montana ponderosa pine forest: Effects on soil physical, chemical and biological properties

Gundale, Michael J.; DeLuca, Thomas H.; Fiedler, Carl E.; Ramsey, Philip W.; Harrington, Michael G.; Gannon, James E.

doi:10.1016/j.foreco.2005.03.015

Cited by 118 publications

(154 citation statements)

References 40 publications

(54 reference statements)

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“…This indicated that only very frequent annual or biannual burning of the understory litter and shrubs in these forests caused appreciable change in these soil characteristics. This result was consistent with studies in southern loblolly pine forests (Richter, 1982;Binkley, 1982), ponderosa pine forests (Covington and Sackett, 1986;Wright and Hart, 1997;Gundale et al, 2005;Hatten et al, 2005) and oak forests (Boerner et al, 1988;Ferran et al, 2005), all of which showed no or relatively little change in soil pH, cation or total soil C and N in response to single or repeated burning. In New Jersey pine-oak woodlands, Burns (1952) found fire rotations of 4 years increased extractable base cations only slightly.…”

Section: Discussionsupporting

confidence: 90%

Responses of soil carbon, nitrogen and cations to the frequency and seasonality of prescribed burning in a Cape Cod oak-pine forest

Neill

Patterson

Crary

2007

Forest Ecology and Management

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Fire is an important component of the historic disturbance regime of oak and pine forests that occupy sandy soils of the coastal outwash plain of the northeastern U.S. Today prescribed fire is used for fuel reduction and for restoration and maintenance of habitat for rare plant, animal and insect species. We evaluated the effects of the frequency and seasonality of prescribed burning on the soils of a Cape Cod, Massachusetts coastal oak-pine forest. We compared soil bulk density, pH and acidity, total extractable cations and total soil C and N in unburned plots and in plots burned over a 12-year period, along a gradient of frequency (every 1-

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Section: Discussionsupporting

confidence: 90%

Responses of soil carbon, nitrogen and cations to the frequency and seasonality of prescribed burning in a Cape Cod oak-pine forest

Neill

Patterson

Crary

2007

Forest Ecology and Management

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“…Other studies have found fire altered ECM community structure in Douglasfir (Kennedy and Egger 2010 ), ponderosa pine (Gundale et al 2005 ), and spruce (Mah et al 2001 ) forests, without necessarily causing large changes in diversity or biomass, while a study on Scots pine forests in Sweden did not find any consistent change in ECM richness or composition following wildfire (Jonsson et al 1999 ). These varying responses of ECM to fire may indicate that local conditions (such as moisture in our study) can strongly influence the response of ECM to wildfire.…”

Section: Discussioncontrasting

confidence: 63%

“…Fire has been demonstrated to alter the community structure of both soil fungi (Cairney and Bastias 2007 ) and ECM fungi (Stendell et al 1999; Mah et al 2001; Dahlberg et al 2001; Smith et al 2005; Gundale et al 2005; Rincón and Pueyo 2010; Kennedy and Egger 2010; Buscardo et al 2012; Barker et al 2013). In addition, disturbance by MPB has been documented to increase fire severity (Turner et al 1999; Page et al 2012, with MPBattacked (red) stands experiencing higher severities of crown fire than might otherwise be expected (S. Taylor, CFS Forestry Officer, pers.…”

Section: Introductionmentioning

confidence: 99%

Site properties have a stronger influence than fire severity on ectomycorrhizal fungi and associated N-cycling bacteria in regenerating post-beetle-killed lodgepole pine forests

et al. 2014

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Following a pine beetle epidemic in British Columbia, Canada, we investigated the effect of fire severity on rhizosphere soil chemistry and ectomycorrhizal fungi (ECM) and associated denitrifying and nitrogen (N)fixing bacteria in the root systems of regenerating lodgepole pine seedlings at two site types (wet and dry) and three fire severities (low, moderate, and high). The site type was found to have a much larger impact on all measurements than fire severity. Wet and dry sites differed significantly for almost all soil properties measured, with higher values identified from wet types, except for pH and percent sand that were greater on dry sites. Fire severity caused few changes in soil chemical status. Generally, bacterial communities differed little, whereas ECM morphotype analysis revealed ectomycorrhizal diversity was lower on dry sites, with a corresponding division in community structure between wet and dry sites. Molecular profiling of the fungal ITS region confirmed these results, with a clear difference in community structure seen between wet and dry sites. The ability of ECM fungi to colonize seedlings growing in both wet and dry soils may positively contribute to subsequent regeneration. We conclude that despite consecutive landscape disturbances (mountain pine beetle infestation followed by wildfire), the "signature" of moisture on chemistry and ECM community structure remained pronounced. Electronic supplementary materialThe online version of this article

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“…Selective harvesting of overstory trees alters microclimatic conditions at the soil surface, often increasing soil temperatures, and thus can change microbial communities, speed decomposition, and increase nutrient cycling and losses in the short-term when plant uptake is reduced (Kaye and Hart, 1998). However, some studies suggest these effects are subtle or absent after the harvesting event (Dannenmann et al, 2007;Feller et al, 2000;Ganjegunte et al, 2004;Gundale et al, 2005Gundale et al, , 2006, and others show they are transient (Dannenmann et al, 2006). Results also vary in the long-term as some ecosystems support altered rates of microbial activity and soil properties for years following thinning Grady and Hart, 2006;Jonard et al, 2006;Maassen et al, 2006), while other ecosystems show few long-term differences from reference conditions (Gundersen et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

Effects of stand density on ecosystem properties of subalpine forests in the southern Rocky Mountains, USA

Hall¹,

Marchand²

2010

Ann. For. Sci.

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Abstract• Mixed coniferous, subalpine forest communities in the Rocky Mountains are historically dense and have experienced infrequent, high-severity fire. However, many of these high-elevation stands are thinned for a number of perceived benefits.• We explored the effects of forest stand density on ecosystem properties in subalpine forests in Colorado, USA, 17-18 y after forests were managed for timber.• Forest structure significantly altered the composition and chemical signature of plant communities. Previously managed stands contained lower density of overstory trees and higher ground cover compared to paired reference stands. Foliar phenolic concentration of several species was negatively related to basal area of overstory trees. Furthermore, reductions in stand density increased total foliar phenolic:nitrogen ratios in some species, suggesting that gap formation may drive long-term changes in litter quality. Despite significant changes in forest structure, reductions in stand density did not leave a strong legacy in surface soil properties, likely due to the integrity of soil organic matter reserves.• Changes in forest structure associated with past management has left a long-term impact on plant communities but has only subtly altered soil nutrient cycling, possibly due to trade offs between litter decomposability and microclimate associated with reductions in canopy cover. Mots-clés :chimie foliaire / composés phénoliques / cycle de l'azote du sol / densité du peuplement / biogéochimie Résumé -Effets de la densité du peuplement sur les propriétés des écosystèmes des forêts subalpines dans le sud des Montagnes Rocheuses aux USA.• Les communautés subalpines de forêts mixtes de conifères dans les Montagnes Rocheuses sont historiquement denses et ont peu connu de feux très sévères. Cependant, beaucoup de ces peuplements de haute altitude sont éclaircis pour de nombreux profits.• Nous avons étudié les effets de la densité des peuplements forestiers sur les propriétés des éco-systèmes dans les forêts subalpines du Colorado (USA), 17-18 ans après que les forêts aient été exploitées pour le bois.• La structure de la forêt a considérablement modifié la composition et la signature chimique des communautés végétales. Auparavant les peuplements exploités renfermaient une plus faible densité d'arbres de l'étage dominant et une couverture du sol plus importante par rapport aux peuplements de référence correspondants. La concentration des composés phénoliques foliaires de plusieurs espèces a été liée négativement à la surface terrière des arbres dominants. En outre, les réductions de la densité du peuplement ont augmenté les rapports composés phénoliques foliaires totaux : azote chez certaines espèces, ce qui suggère que la formation de trouée peut conduire à des changements à long terme de la qualité de la litière. Malgré d'importants changements dans la structure forestière, la réduction de la densité du peuplement n'a pas laissé un héritage solide dans les propriétés de surface du sol, probablement à cause de l'inté...

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Restoration treatments in a Montana ponderosa pine forest: Effects on soil physical, chemical and biological properties

Cited by 118 publications

References 40 publications

Responses of soil carbon, nitrogen and cations to the frequency and seasonality of prescribed burning in a Cape Cod oak-pine forest

Responses of soil carbon, nitrogen and cations to the frequency and seasonality of prescribed burning in a Cape Cod oak-pine forest

Site properties have a stronger influence than fire severity on ectomycorrhizal fungi and associated N-cycling bacteria in regenerating post-beetle-killed lodgepole pine forests

Effects of stand density on ecosystem properties of subalpine forests in the southern Rocky Mountains, USA

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