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Author : Walter E. Cole
Publisher : Unknown
Page : 8 pages
File Size : 54,7 Mb
Release : 1973
Category : Lodgepole pine
ISBN : UIUC:30112104066326
Author : Walter E. Cole
Publisher : Unknown
Page : 52 pages
File Size : 48,6 Mb
Release : 1980
Category : Lodgepole pine
ISBN : IND:30000098225042
Author : Dale L. Bartos
Publisher : Unknown
Page : 12 pages
File Size : 47,6 Mb
Release : 1994
Category : Forest thinning
ISBN : MINN:31951D029884989
Author : Gene D. Amman
Publisher : Unknown
Page : 68 pages
File Size : 41,7 Mb
Release : 1983
Category : Lodgepole pine
ISBN : MINN:31951D03001364O
Author : S. A. Mata
Publisher : Unknown
Page : 24 pages
File Size : 51,6 Mb
Release : 2003
Category : Forests and forestry
ISBN : MINN:31951D03001922G
Periodic diameter and basal area growth were determined for partially cut stands of lodgepole pine at five locations over approximately 10 year periods. After cutting, average diameters in the partially cut plots generally increased by 0.8 inches or more, while average diameter in the uncut controls increased by 0.6 inches or less. Diameter growth in the partially cut plots was generally significantly greater than diameter growth in the controls. Individual tree growth is discussed in relation to potential susceptibility to mountain pine beetle infestation. Basal area decreased in three of the four GSL (growing stock level) 40 stands because of windthrow. Basal area generally increased >1.0 ft 2 / acre/year in partially cut plots except in the GSL 40 stands with substantial windthrow and one GSL 100 with an Armillaria infection pocket. Basal area increases in the control plots ranged from 0.2 to 1.1 ft 2 /acre/year, although the one control with a BA growth rate of 1.1 ft 2 /acre/year had a relatively low initial BA. Data from the stands are employed in the susceptibility rating methods of Amman et al.(1977), Shore and Safranyik (1992),and Anhold et al. (1996 to determine stand susceptibility and the results discussed in terms of general applicability of these methods to partially cut stands. Basal area growth is used to estimate the length of time required for various stand densities to reach specific susceptibility thresholds for mountain pine beetle infestation. Several of the GSL 40 stands are not projected to reach the susceptibility thresholds in 100 years because of windthrow. Barring mortality 1%,GSL 80 stands are estimated to reach the basal area threshold of 120 ft 2 per acre in
Author : Walter E. Cole
Publisher : Unknown
Page : 128 pages
File Size : 47,8 Mb
Release : 1980
Category : Lodgepole pine
ISBN : OCLC:7223012
Author : Gene D. Amman
Publisher : Unknown
Page : 59 pages
File Size : 46,5 Mb
Release : 1983
Category : Lodgepole pine
ISBN : OCLC:1037772187
Author : Walter E. Cole,Gene D. Amman
Publisher : Unknown
Page : 64 pages
File Size : 47,9 Mb
Release : 1980
Category : Insect pests
ISBN : MINN:31951D03001275N
Author : Anonim
Publisher : Unknown
Page : 9 pages
File Size : 41,6 Mb
Release : 1994
Category : Forest thinning
ISBN : OCLC:32303572
Author : Pamela Dykstra,T. F. Braumandl,Hawkes, B. C. (Brad C.),Pacific Forestry Centre
Publisher : Unknown
Page : 92 pages
File Size : 43,9 Mb
Release : 2006
Category : Ecological disturbances
ISBN : MINN:31951D02376322W
The Canadian government announced the Mountain Pine Beetle Initiative (MPBI) in 2002 to address the socio-economic and ecological consequences of an epidemic of mountain pine beetle (Dendroctonus ponderosae Hopkins). The objective of this study was to establish baseline information on the ecological characteristics that occur at different stages of succession, resulting from mountain pine beetle disturbance at different time intervals. Key issues addressed by this study were: the post-beetle ecological character of stands; the ecological legacies that should be sought post-beetle; maintenance of ecological integrity in beetle-damaged landscapes; and the impacts of beetles on regeneration. This paper presents a study of stand conditions following two historic mountain pine beetle outbreaks events in the 1940s and 1980s. The study quantified structural and species composition of stands at different stages of succession (25 years and 65 years), and quantified the differences that occur in forest development between stands with and without disturbance by the beetle. It concludes with several recommendations for management of post-disturbance landscapes.
Author : Pacific Forestry Centre,Mountain Pine Beetle Initiative (Canada)
Publisher : Unknown
Page : 308 pages
File Size : 40,7 Mb
Release : 2004
Category : Nature
ISBN : CORNELL:31924101517682
The S2Mountain Pine Beetle Symposium: Challenges and SolutionsS3 was held in Kelowna, British Columbia, Canada on October 30-31, 2003. This meeting was organized by Natural Resources Canada, Canadian Forest Service, Pacific Forestry Centre and funded through the Government of Canada Mountain Pine Beetle Initiative. Approximately 250 people representing the forest industry, consultants, universities, provincial and federal government agencies, First Nations, and the general public, from both Canada and the United States attended the meeting. Thirty presentations were given describing the current mountain pine beetle situation (in British Columbia, Alberta and the western United States) and its management and economic implications. Researchers presented the latest information on remote sensing, decision support systems, impacts on stand dynamics and wildlife, phytosanitary risks, climate change effects and preventive management as they relate to mountain pine beetle.
Author : K. Dave Coates,T. Glover,B. Henderson
Publisher : Unknown
Page : 52 pages
File Size : 48,9 Mb
Release : 2009
Category : Conifers
ISBN : MINN:31951D03026081Z
"Mountain Pine Beetle Program Project # 7.22".
Author : Walter E. Cole
Publisher : Unknown
Page : 636 pages
File Size : 43,6 Mb
Release : 1980
Category : Conifers
ISBN : OSU:32435055890503
Author : Gene D. Amman
Publisher : Unknown
Page : 22 pages
File Size : 51,8 Mb
Release : 1974
Category : Mountain pine beetle
ISBN : UIUC:30112104128811
Author : K. Runzer
Publisher : Unknown
Page : 80 pages
File Size : 43,6 Mb
Release : 2008
Category : Nature
ISBN : UIUC:30112101885363
"A recent survey of mountain pine beetle (MPB) attack in mature and immature pine leading stands indicated that attack rate was a function of tree size, age and stand density. However, the temporal dynamics of MPB attack in mature and immature stands, as well as the release of the regeneration layer or secondary structure under a dying canopy, are poorly understood. The primary objectives of this study were to i) investigate temporal and spatial aspects of MPB attack, ii) investigate regeneration dynamics (mortality and growth) of post-beetle attack, iii) model growth and yield with actual mortality and regeneration metrics, iv) describe economic opportunities of harvest scheduling with respect to post-MPB stand structure and v) develop improved management and regeneration options."--Document.