FIRE REGIMES ON ANDESITIC MOUNTAIN TERRAIN IN NORTHEASTERN YELLOWSTONE-NATIONAL-PARK, WYOMING

被引:36
作者
BARRETT, SW
机构
[1] Systems for Environmental Management, Kalispell, MT, 59807
关键词
FIRE HISTORY; YELLOWSTONE-NATIONAL-PARK; PINUS-CONTORTA; PINUS-ALBICAULIS; PSEUDOTSUGA-MENZIESII;
D O I
10.1071/WF9940065
中图分类号
S7 [林业];
学科分类号
0829 ; 0907 ;
摘要
A fire history investigation was conducted for three forest community types in the Absaroka Mountains of Yellowstone National Park, Wyoming. Master fire chronologies were based on fire-initiated age classes and tree fire scars. The area's major forest type, lodgepole pine (Pinus contorta Dougl. var. latifolia) ecosystems, revealed a predominant pattern of stand replacing fires with a 200 year mean interval-nearly half the length estimated in previous studies of lodgepole pine on less productive subalpine plateaus in YNP. High elevation whitebark pine (P. albicaulis Engelm.) forests had primarily stand replacing fires with >350 year mean intervals, but some stands near timberline also occasionally experienced mixed severity- or non-lethal underburns. Before nearly a century of effective fire suppression in Yellowstone's northern range, lower elevation Douglas-fir (Pseudotsuga menziesii [Mirb.] Franco.) communities adjacent to Artemesia tridentata (Nutt.) grasslands experienced primarily non-lethal underburns at 30 year mean intervals. While short interval fire regimes have been altered by longterm fire suppression, fire exclusion apparently had only limited influence on the area's infrequently burned ecosystems prior to widespread stand replacement burning in 1988.
引用
收藏
页码:65 / 76
页数:12
相关论文
共 40 条
[1]  
Amo S.F., Forest fire history in the Northern Rockies, Journal of Forestry, 78, 8, pp. 460-465, (1980)
[2]  
Amo S.F., Gruell G.E., Fire history at the forest- grassland ecotone in southwestern Montana, Journal of Range Management, 36, 3, pp. 332-336, (1983)
[3]  
Amo S.F., Gruell G.E., Douglas-fir encroachment into mountain grasslands in southwestern Montana, Journal of Range Management, 39, 3, pp. 272-276, (1986)
[4]  
Amo S.F., Hoff R.J., Silvics of whitebark pine (Firms albicaulis). General Technical Report INT-253. Odgen, Utah: United States Department of Agriculture, (1989)
[5]  
Amo S.F., Sneck K.M., A method for determining fire history in coniferous forests of the mountain west General Technical Report INT-42, Ogden, Utah: United States Department of Agriculture, (1977)
[6]  
Balling R.C., Meyer G.A., Weus S.G., Climatic change in Yellowstone National Park: Is the drought related risk of wildfires increasing?, Climatic Change, 22, pp. 35-45, (1992)
[7]  
Barrett S.W., Fire history of Tenderfoot Creek Experimental Forest, Lewis and Clark National Forest, Unpublished Final Report, Research Joint Venture Agreement Inr-92679-Rjva. Copy on File at United States Department of Agriculture, Forest Service, Intermountain Research Station, (1993)
[8]  
Barrett S.W., Fire history of southeastwn Glacier National Park: Missouri River Drainage, Unpublished Final Report, Purchase Order PX1430-2, (1993)
[9]  
Barrett S.W., Amo S.F., Indian fires as an ecological influence in the Northern Rockies, Journal of Forestry, 80, pp. 647-651, (1982)
[10]  
Barrett S.W., Amo S.F., Increment Borer Methods for Determining Fire History in Coniferous Forests. General Technical Report INT-244. Ogden, Utah: United States Departmentof Agriculture, (1988)