CharronGreene2002

Référence

Charron, I. and Greene, D.F. (2002) Post-wildfire seedbeds and tree establishment in the southern mixedwood boreal forest. Canadian Journal of Forest Research, 32(9):1607-1615.

Résumé

We studied the post-wildfire establishment of jack pine (Pinus banksiana Lamb.), black spruce (Picea mariana (Mill.) BSP), and white spruce (Picea glauca (Moench) Voss) in the southern mixedwood boreal forest of Saskatchewan, Canada. The major objective of the study was to determine the influence of post-wildfire seedbed types on the juvenile survivorship of trees. Through a combination of permanent plots and sowing experiments, we demonstrated that mineral soil, thin Polytrichum Hedw. moss, and humus are much more favorable than the organic fermentation (Of) and litter seedbeds. We also show that differences among seedbeds are significantly more important than differences among species. In addition, the first year of a cohort has the highest rate of mortality, about 85% on mineral and humus seedbeds and 98% on Of seedbeds; differences in age-specific survivorship between seedbeds become muted by the end of the second year, and survivorship rates approach 1 by the end of the third summer. Finally, age structures showed that germination rates of black spruce and jack pine were very low the initial summer of the fire; that there was a peak in recruitment in the first post-fire summer; and that by the fourth year the recruitment declined to nearly zero.

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@ARTICLE { CharronGreene2002,
    AUTHOR = { Charron, I. and Greene, D.F. },
    TITLE = { Post-wildfire seedbeds and tree establishment in the southern mixedwood boreal forest },
    JOURNAL = { Canadian Journal of Forest Research },
    YEAR = { 2002 },
    VOLUME = { 32 },
    PAGES = { 1607-1615 },
    NUMBER = { 9 },
    NOTE = { 00455067 (ISSN) Cited By (since 1996): 24 Export Date: 27 April 2007 Source: Scopus CODEN: CJFRA doi: 10.1139/x02-085 Language of Original Document: English Correspondence Address: Charron, I.; Department of Biological Sciences; University of Calgary Calgary, Alta. T2N 1N4, Canada; email: icharron@ucalgary.ca References: Bridge, S., Johnson, E.A., Geomorphic principles of terrain organization and vegetation gradients (2000) J. Veg. Sci., 11, pp. 57-70; Cayford, J.H., Some factors influencing jack pine regeneration after fire in southeastern Manitoba (1963) Can. Dep. For. Publ. 1017; Cayford, J.H., Some factors influencing jack pine regeneration on a lowland cutover site in southeastern Manitoba (1964) Can. Dep. For. Publ. 1016; Charron, I., (1998) Sexual Recruitment of Trees Following Fire in the Southern Mixedwood Boreal Forest of Canada, , M.Sc. thesis, Department of Biology, Concordia University, Montre?al, Que; Clayton, J.S., Ehrlich, W.A., Cann, D.B., Day, J.H., Marshall, I.B., (1977) Soils of Canada. Vol. 1. Soil report, 1. , Research Branch, Canada Department of Agriculture, Ottawa, Ont; Crossley, D.I., Survival of white spruce reproduction resulting from various methods of forest soil scarfication (1955) Can. Dep. North. Affairs Nat. Res. For. Branch For. Res. Div. Tech. Note 10; DesRochers, A., Gagnon, R., Is ring count at ground level a good estimation of black spruce age? (1997) Can. J. For. Res., 27, pp. 1263-1267; Duchesne, S., Sirois, L., Phase initial de re?ge?ne?ration apre?s feu des populations conife?riennes subarctiques (1995) Can. J. For. Res., 25, pp. 307-318; Fleming, R.L., Mossa, D.S., Direct seeding of black spruce in northwestern Ontario: Temporal changes in seedbed coverage and receptivity (1995) For. Chron., 71, pp. 219-227; Fleming, R.L., Mossa, D.S., Seed release from black spruce cones in logging slash (1996) Can. J. For. Res., 26, pp. 266-276; Greene, D.F., Johnson, E.A., Estimating the mean annual seed production of trees (1994) Ecology, 75, pp. 642-647; Greene, D.F., Johnson, E.A., Seed mass and early survivorship of tree species in upland clearings and shelterwoods (1998) Can. J. For. Res., 28, pp. 1307-1316; Greene, D.F., Johnson, E.A., Modeling of Populus tremuloides, Pinus banksiana, and Picea mariana following fire in the mixedwood boreal forest (1999) Can. J. For. Res., 29, pp. 462-473; Greene, D.F., Zasada, J.H., Sirois, L., Morin, H., Kneeshaw, D., Charron, I., Simard, M.-J., A review of the recruitment dynamics of boreal forest trees (1999) Can. J. For. Res., 29, pp. 824-839; Heinselman, M., Fire and succession in the conifer forests of western North America (1981) Forest Succession: Concepts, and Applications, pp. 374-405. , Edited by D.C. West, H.H. Shugart, and D.B. Botkin. Springer-Verlag, New York; Horton, K.W., McCormick, R.J., Economical spot seeding and planting methods for pines on sand plains (1961) For. Res. Branch. Tech. Note 100; Jarvis, J.M., Seeding white spruce, black spruce, and jack pine on burned seedbeds in Manitoba (1966) Can. Dep. For. Publ. 1166; Leiffers, V.J., Stadt, K.J., Naratil, S., Age structure and growth of understory white spruce under aspen (1996) Can. J. For. Res., 26, pp. 1002-1007; Payette, S., Bhiry, N., Delwaide, A., Simard, M., Origin of the lichen woodland at its southern range limit in eastern Canada: The catastrophic impact of insect defoliation and fire on the spruce-moss forest (2000) Can. J. For. Res., 30, pp. 288-305; Radvani, A., Seed losses to small mammals and birds (1974) Can. For. Serv. Publ. 1339, pp. 67-75. , Direct Seeding Symposium, 11-13 Sept. 1973, Timmins, Ont. Edited by J.H. Cayford; Rowe, J.S., Forest regions of Canada (1972) Can. For. Serv. Publ. 1300; Sims, H.P., Germination and survival of jack pine on three prepared cutover sites (1970) Dep. Fish. For. Can. For. Serv. Publ. 1283; Sirois, L., Payette, S., Postfire black spruce establishment in subarctic and boreal Quebec (1989) Can. J. For. Res., 19, pp. 1571-1580; St-Pierre, H., Gagnon, R., Bellefleur, P., Distribution spatiale de la re?g?ne?ration apre?s feu de l'e?pinette noire (Picea mariana) et du pin gris (Pinus banksiana) dans la fore?t bore?ale, Re?serve faunique Ashuapmushan, Que?bec (1991) Can. J. Bot., 69, pp. 717-721; St-Pierre, H., Gagnon, R., Bellefleur, P., Re?ge?ne?ration apre?s feu de l'e?pinette noire (Picea mariana) et du pin gris (Pinus banksiana) de la fore?t bore?ale, Que?bec (1992) Can. J. For. Res., 22, pp. 474-481; Walker, L.R., Zasada, J.C., Chapin F.C. III, The role of life history processes in primary succession on river floodplains in interior Alaska (1986) Ecology, 67, pp. 1243-1253; Weir, J.H., Johnson, E.A., Effects of escaped settlement fires and logging on forest composition in the mixedwood boreal forest (1998) Can. J. For. Res., 28, pp. 459-467; Zar, J.H., (1999) Biostatistical Analysis, , Prentice-Hall, Englewood Cliffs, N.J. },
    ABSTRACT = { We studied the post-wildfire establishment of jack pine (Pinus banksiana Lamb.), black spruce (Picea mariana (Mill.) BSP), and white spruce (Picea glauca (Moench) Voss) in the southern mixedwood boreal forest of Saskatchewan, Canada. The major objective of the study was to determine the influence of post-wildfire seedbed types on the juvenile survivorship of trees. Through a combination of permanent plots and sowing experiments, we demonstrated that mineral soil, thin Polytrichum Hedw. moss, and humus are much more favorable than the organic fermentation (Of) and litter seedbeds. We also show that differences among seedbeds are significantly more important than differences among species. In addition, the first year of a cohort has the highest rate of mortality, about 85% on mineral and humus seedbeds and 98% on Of seedbeds; differences in age-specific survivorship between seedbeds become muted by the end of the second year, and survivorship rates approach 1 by the end of the third summer. Finally, age structures showed that germination rates of black spruce and jack pine were very low the initial summer of the fire; that there was a peak in recruitment in the first post-fire summer; and that by the fourth year the recruitment declined to nearly zero. },
    KEYWORDS = { Biodiversity Fermentation Minerals Seed Soils Germination rates Forestry boreal forest mixed farming recruitment wildfire seedling establishment taiga tree Canada Bryophyta lamb Paragnetina Picea Picea glauca Picea mariana Pinus banksiana Polytrichum },
    OWNER = { brugerolles },
    TIMESTAMP = { 2007.12.05 },
}

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