BradleyTitusHogg2001

Référence

Bradley, R.L., Titus, B.D. and Hogg, K. (2001) Does shelterwood harvesting have less impact on forest floor nutrient availability and microbial properties than clearcutting? Biology and Fertility of Soils, 34(3):162-169.

Résumé

Chemical and microbial properties of the forest floor were measured in 4-year-old shelterwood treatment plots in the montane coastal western hemlock biogeoclimatic zone of British Columbia, Canada, and compared to those in adjacent old-growth and 4-year-old clearcut plots. Forest floor pH, exchangeable Mg, total C and total N concentrations were similar in all three treatments. Bray-extractable P was significantly lower in humus from shelterwood plots, exchangeable Ca was significantly lower in humus from clearcut plots, and exchangeable K was significantly higher in humus from old-growth plots. Indices of available C (basal respiration rate, microbial biomass and metabolic quotient) were significantly higher in old-growth plots than in the two harvested treatment plots. The relative increase in maximum microbial metabolic rate due to the addition of organic nutrients was significantly greater in clearcut plots. Principal component analysis (PCA) ordination of humus samples based on C source utilization patterns of microbial communities (i.e., Biolog assay) showed distinctive clustering by treatment, although indices of substrate richness, evenness and diversity were the same in all three treatments. The relative utilization rates of substrates with the highest factor loadings on PCA axes 1 and 2 were dissimilar in each treatment. We conclude that forest floors can develop under shelterwood harvested stands to exhibit chemical and microbial properties atypical of either clearcut or old-growth plots.

Format EndNote

Vous pouvez importer cette référence dans EndNote.

Format BibTeX-CSV

Vous pouvez importer cette référence en format BibTeX-CSV.

Format BibTeX

Vous pouvez copier l'entrée BibTeX de cette référence ci-bas, ou l'importer directement dans un logiciel tel que JabRef .

@ARTICLE { BradleyTitusHogg2001,
    AUTHOR = { Bradley, R.L. and Titus, B.D. and Hogg, K. },
    TITLE = { Does shelterwood harvesting have less impact on forest floor nutrient availability and microbial properties than clearcutting? },
    JOURNAL = { Biology and Fertility of Soils },
    YEAR = { 2001 },
    VOLUME = { 34 },
    PAGES = { 162-169 },
    NUMBER = { 3 },
    NOTE = { 01782762 (ISSN) Cited By (since 1996): 8 Export Date: 26 April 2007 Source: Scopus CODEN: BFSOE doi: 10.1007/s003740100389 Language of Original Document: English Correspondence Address: Bradley, R.L.; De?partement de Biologie; Faculte? des Sciences; Universite? de Sherbrooke Sherbrooke, Que. J1K 2R1, Canada; email: robert.bradley@courrier.usherb.ca References: Adams, P.W., Flint, A.L., Fredriksen, R.L., Long-term patterns in soil moisture and revegetation after a clearcut of a Douglas-fir forest in Oregon (1991) For Ecol Manage, 41, pp. 249-263; Anderson, T.H., Domsch, K.H., A physiological method for the quantitative measurement of microbial biomass in soil (1978) Soil Biol Biochem, 10, pp. 215-221; Anderson, T.H., Domsch, K.H., Application of eco-physiological quotients (qCO2 and qD) on microbial biomasses from soils of different cropping histories (1990) Soil Biol Biochem, 22, pp. 251-255; Anderson, T.H., Domsch, K.H., The metabolic quotient for CO2 (qCO2) as a specific activity parameter to assess the effects of environmental conditions, such as pH, on the microbial biomass of forest soils (1993) Soil Biol Biochem, 25, pp. 393-395; Arnott, J.T., Neese, W.J., Mitchell, A.K., Peterson, J., Montane alternative silvicultural systems (MASS) (1995) Proceedings of the MASS workshop, , 7-8 June 1995, Courtenay, BC. FRDA report 238. Canadian Forest Service, Victoria, BC; Attiwill, P.M., Adams, M.A., Nutrient cycling in forests (1993) New Phytol, 124, pp. 561-582; Beare, M.H., Neely, C.L., Coleman, D.C., Hargrove, W.L., A substrate-induced respiration (SIR) method for measurement of fungal and bacterial biomass on plant residues (1990) Soil Biol Biochem, 22, pp. 585-594; Binkley, D., Does forest removal increase rates of decomposition and nitrogen release? (1984) For Ecol Manage, 8, pp. 229-233; Bradley, R.L., Fyles, J.W., Growth of paper birch (Betula papyrifera) seedlings increases soil available C and microbial acquisition of soil nutrients (1995) Soil Biol Biochem, 27, pp. 1565-1571; Bradley, R.L., Fyles, J.W., A kinetic parameter describing soil available carbon and its relationship to rate increase in C mineralisation (1995) Soil Biol Biochem, 27, pp. 167-172; Bradley, R.L., Fyles, J.W., Interactions between tree seedling roots and humus forms in the control of soil C and N cycling (1996) Biol Fertil Soils, 23, pp. 70-79; Bradley, R.L., Titus, B.D., Hogg, K., Preston, C., Prescott, C.E., Kimmins, J.P., Assessing the controls on soil mineral-N cycling rates in managed CWH ecosystems of British Columbia (2000) J Sust For, 10, pp. 213-219; Bradley, R.L., Titus, B.D., Preston, C.P., Changes to mineral N cycling and microbial communities in black spruce humus after additions of (NH4)2SO4 and condensed tannins extracted from Kalmia angustifolia and balsam fir (2000) Soil Biol Biochem, 32, pp. 1227-1240; (1979) The canadian system of soil classification, pp. 7-20. , Bentley CF (ed) Photographs and descriptions of some Canadian soils. Publication no B 79-1. University of Alberta. Edmonton; Chang, S.X., Trofymow, J.A., Microbial respiration and biomass (substrate-induced respiration) in soils of old-growth and regenerating forests on northern Vancouver Island, British Columbia (1996) Biol Fertil Soils, 23, pp. 145-152; Colores, G.M., Schmidt, S.K., Fisk, M.C., Estimating the biomass of microbial functional groups using rates of growth-related soil respiration (1996) Soil Biol Biochem, 28, pp. 1569-1577; Durall, D.M., Jones, M.D., Wright, E.F., Kroeger, P., Coates, K.D., Species richness of ectomycorrhizal fungi in cutblocks of different sizes in the interior cedar-hemlock forests of northwestern British Columbia: Sporocarps and ectomycorrhizae (1999) Can J For Res, 29, pp. 1322-1332; Gadgil, R.L., Gadgil, P.D., Suppression of litter decomposition by mycorrhizal roots of Pinus radiata (1975) N Z J For Sci, 8, pp. 213-224; Garland, J.L., Patterns of potential C source utilization by rhizosphere communities (1996) Soil Biol Biochem, 28, pp. 223-230; Goodfriend, W.L., Microbial community patterns of potential substrate utilization: A comparison of salt marsh, sand dune, and seawater-irrigated agronomic systems (1998) Soil Biol Biochem, 30, pp. 1169-1176; Gross, K.L., Pregitzer, K.S., Burton, A.J., Spatial variation in nitrogen availability in three successional plant communities (1995) J Ecol, 83, pp. 357-367; Hagerman, S.M., Jones, M.D., Bradfield, G.E., Gillespie, M., Durall, D.M., Effects of clearcutting on the diversity and persistence of ectomycorrhizae at a subalpine forest (1999) Can J For Res, 29, pp. 124-134; Insam, H., Haselwandter, K., Metabolic quotient of the soil microflora in relation to plant succession (1989) Oecologia, 79, pp. 174-178; Jonassen, S., Michelson, A., Schmidt, I.K., Nielsen, E.V., Responses in microbes and plants to changed temperature, nutrient, and light regimes in the Arctic (1999) Ecology, 80, pp. 1828-1843; Keenan, R.J., Prescott, C.E., Kimmins, J.P., MASS and nutrient content of woody debris and forest floor in western red cedar and western hemlock forests on northern Vancouver-Island (1993) Can J For Res, 23, pp. 1052-1059; Lytle, D.E., Cronan, C.S., Comparative soil CO2 evolution, litter decay, and root dynamics in clearcut and uncut spruce-fir forest (1998) For Ecol Manage, 103, pp. 121-128; Martens, R., Current methods for estimating microbial biomass in soil: Potentials and limitations (1995) Biol Fertil Soils, 19, pp. 87-99; Martin, W.L., (1985) Post-clearcutting nitrogen dynamics and regeneration response in the coastal western hemlock wet subzone, , PhD thesis. Department of Forest Science, University of British Columbia, Vancouver; Martin, W.L., Bradley, R., Kimmins, J.P., Post-clearcutting forest floor N-dynamics in the CWH wet subzone: A chronosequence study (1998) N W Sci, 72, pp. 71-73; Pietika?inen, J., Vaija?rvi, E., Ilvesniemi, H., Fritze, H., Westman, C.J., Carbon storage of microbes and roots and the flux of CO2 across a moisture gradient (1999) Can J For Res, 29, pp. 1197-1203; Prescott, C.E., Effects of clearcutting and alternative silvicultural systems on rates of decomposition and nitrogen mineralization in a coastal coniferous forest (1997) For Ecol Manage, 95, pp. 253-260; Titus, B.D., Malcolm, D.C., The long-term decomposition of Sitka spruce needles in brash (1999) Forestry, 72, pp. 207-221; Wardle, D.A., Ghani, A., A critique of the microbial metabolic quotient (qCO2) as a bioindicator of disturbance and ecosystem development (1995) Soil Biol Biochem, 27, pp. 1601-1610; Wolters, V., Biological processes in two beech forest soils treated with simulated acid rain - A laboratory experiment with Isotoma tigrina (Insecta, Collembola) (1991) Soil Biol Biochem, 23, pp. 381-390; Zak, J.C., Willig, M.R., Moorhead, D.L., Wildman, H.G., Functional diversity of microbial communities: A quantitative approach (1994) Soil Biol Biochem, 26, pp. 1101-1108. },
    ABSTRACT = { Chemical and microbial properties of the forest floor were measured in 4-year-old shelterwood treatment plots in the montane coastal western hemlock biogeoclimatic zone of British Columbia, Canada, and compared to those in adjacent old-growth and 4-year-old clearcut plots. Forest floor pH, exchangeable Mg, total C and total N concentrations were similar in all three treatments. Bray-extractable P was significantly lower in humus from shelterwood plots, exchangeable Ca was significantly lower in humus from clearcut plots, and exchangeable K was significantly higher in humus from old-growth plots. Indices of available C (basal respiration rate, microbial biomass and metabolic quotient) were significantly higher in old-growth plots than in the two harvested treatment plots. The relative increase in maximum microbial metabolic rate due to the addition of organic nutrients was significantly greater in clearcut plots. Principal component analysis (PCA) ordination of humus samples based on C source utilization patterns of microbial communities (i.e., Biolog assay) showed distinctive clustering by treatment, although indices of substrate richness, evenness and diversity were the same in all three treatments. The relative utilization rates of substrates with the highest factor loadings on PCA axes 1 and 2 were dissimilar in each treatment. We conclude that forest floors can develop under shelterwood harvested stands to exhibit chemical and microbial properties atypical of either clearcut or old-growth plots. },
    KEYWORDS = { Clearcutting Forest floor Microbial diversity Shelterwood harvesting Substrate-induced respirometry nutrient availability clearcutting forest floor harvesting nutrient availability shelterbelt soil microorganism soil nutrient Canada },
    OWNER = { brugerolles },
    TIMESTAMP = { 2007.12.05 },
}

********************************************************** ***************** Facebook Twitter *********************** **********************************************************

Abonnez-vous à
l'Infolettre du CEF!

********************************************************** ************* Écoles d'été et formation **************************** **********************************************************

Écoles d'été et formations

********************************************************** ***************** Pub - Symphonies_Boreales ****************** **********************************************************

********************************************************** ***************** Boîte à trucs *************** **********************************************************

CEF-Référence
La référence vedette !

Jérémie Alluard (2016) Les statistiques au moments de la rédaction 

  • Ce document a pour but de guider les étudiants à intégrer de manière appropriée une analyse statistique dans leur rapport de recherche.

Voir les autres...