Download or read book Lodgepole Pine Survival and Growth 20 Years After Site Preparation at a Sub boreal Site written by Jacob Otchere-Boateng and published by . This book was released on 2011 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lodgepole Pine Responses to Mechanical Site Preparation and Burning in Sub boreal British Columbia written by John McClarnon and published by . This book was released on 2016 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1988, three studies were established as part of Experimental Project 995 to study lodgepole pine (Pinus contorta var. latifolia) survival and growth responses to site preparation in the Sub-Boreal Spruce zone of north-central British Columbia. The project examines the effectiveness of several mechanical treatments and localized high-intensity burning, with a focus on disc trenching, which is the most commonly used mechanical site preparation technique in this region. The importance of disc trench orientation, planting aspect, and planting position were investigated, as well as potential interactions between broadcast burning and disc trenching. This report presents 25-year results for the Bednesti North and Bednesti South experiments, and 19-year results for the Tanli experiment. Treatment effects are discussed in relation to: lodgepole pine establishment (survival and early growth to age 5); performance at approximately free-growing age (9 years); and early mid-term growth, stand volume, and site index (as measured at age 25). Of the mechanical treatments tested, coarse mixing was the most effective, resulting in approximately 1-m gains in lodgepole pine height over the control at age 25. This treatment is not practical from an operational perspective, however, and the more common technique of disc trenching with trees planted at the hinge produced the second greatest gains. In contrast, pine planted in trench furrows showed a trend of reduced growth relative to the control. Trench orientation was relatively unimportant, but there was a slight advantage to avoiding north-aspect planting positions. Although broadcast burning alone did not have a significant effect on pine growth, it consistently interacted with disc trenching to produce a mild magnification of responses to that treatment. Pine planted in long, narrow, intensely burned windrow strips were consistently larger than control pine throughout the 25-year assessment period, but they had poor form due to being essentially open-grown.
Download or read book Condition Growth and Projected Yield of Lodgepole Pine and Interior Spruce 20 Years After Rehabilitation of an Understocked Site in North central British Columbia written by Roger J. Whitehead and published by . This book was released on 2011 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Stony Lake trial was established in 1987 to benchmark growth performance of interior spruce and lodgepole pine planted into 12 treatment regimes for rehabilitating an understocked sub-boreal spruce site. All combinations of three options for primary site clearing treatments (burn, spray and burn, or windrow), two options for secondary site preparation treatments (disc-trenching or no disc-trenching), and two options for tertiary weeding treatments (broadcast application of herbicide three years after planting or no treatment) were tested. The objectives of this report were to 1) document the status of interior spruce and lodgepole pine trees planted into the 12 treatment regimes at the Stony Lake long-term research trial and 2) use these early growth data to customize Tree and Stand Simulator (TASS) runs to project potential impact on yield and expected value at rotation.--Includes text from document.
Download or read book Early Survival and Height Growth of Douglas fir and Lodgepole Pine Seedlings and Variations in Site Factors Following Treatment of Logging Residues written by W. Lopushinsky and published by . This book was released on 1992 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Long term Results from EP841 written by Teresa A. Newsome and published by . This book was released on 2016 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Site Preparation for Establishing Lodgepole Pine on Backlog Sites in the Sub boreal Spruce Zone written by British Columbia. Forest Site Management Section and published by . This book was released on 2001 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Initial Germination and Survival of Lodgepole Pine on Prepared Seedbeds written by James E. Lotan (Forester) and published by . This book was released on 1964 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effects of Mechanical and Chemical Site Preparation on Ponderosa Pine Pinus Ponderosa Dougl Ex Laws and Lodgepole Pine Pinus Contorta Dougl Ex Loud Performance Associated Vegetation and Soil Properties in Southcentral Oregon Eight Years After Planting written by Darrell W. Ross and published by . This book was released on 1985 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effects of six alternative site preparation treatments were compared at three different sites in southcentral Oregon. Treatments included a logged-only control, ripping, brushblading, disking, chemical, and chemical followed by disking. Subplots containing ponderosa pine bareroot (2+0) and containerized (1+0) and lodgepole pine containerized (1+0) seedlings were also included in the experiment. The study involved the remeasurement of the plots eight growing seasons after establishment. The treatments were evaluated based on changes in selected soil chemical and physical properties, the response of non-conifer vegetation, and the survival and growth of the planted pines. Soil samples were analyzed for total N, total S, total C, and extractable phosphorus. Bulk density was also determined for each sample. In general, the brushblade and chemical/disk treatments caused the greatest reduction in nutrient levels and the greatest increase in bulk density compared to the control arid other treatments. The greatest differences in the amount of non-conifer vegetation among site preparation treatments were observed at the low elevation site (East Aspen), which supported an established shrub community prior to treatment. Total aboveground biomass of shrubs was highest on the control plot. Ripping had the second highest shrub biomass, followed by the disk, brushblade, chemical, and chemical/disk treatments. Plant communities at the higher elevation sites (Swede Cabin and Camp Nine) were primarily composed of grass, sedge, and forb species with scattered shrubs. In general, the control and rip plots had the highest canopy coverage of herbaceous vegetation at these sites, followed by the brushblade, disk, chemical/disk, and chemical treatments. Pine survival was satisfactory for all treatments except the rip and control plots at East Aspen and Swede Cabin. Survival was low for all treatments at Camp Nine. The greatest differences in conifer height growth among site preparation treatments occurred at East Aspen. At this site, the chemical/disk and chemical treatments resulted in a substantial increase in height growth compared to the control. Disking, brushblading, and ripping also increased height growth, but to a lesser extent. All of the treatments except ripping were equally effective at Swede Cabin in increasing height growth compared to the control. At Camp Nine, the effect of treatments with respect to height growth was the same as that at East Aspen, although the magnitude of the differences was less. The results of this study indicate the importance of controlling competing vegetation in order to achieve maximum survival and early growth of planted pines in southcentral Oregon.
Download or read book Ten year Effect of Six Site preparation Treatments on Piedmont Loblolly Pine Survival and Growth written by M. Boyd Edwards and published by . This book was released on 1994 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Early Developmental Differences Among Five Lodgepole Pine Provenances Planted on a Subalpine Site in Montana written by Dennis M. Cole and published by . This book was released on 1984 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Climate and Its Relevance to Lodgepole Pine Performance at the Sub boreal Bednesti Research Site Over a 30 year Period EP0995 written by Robert Matthew Sagar and published by . This book was released on 2019 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fifth year Seed written by James E. Lotan and published by . This book was released on 1977 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Natural Regeneration of Lodgepole Pine in South central Oregon written by P. H. Cochran and published by . This book was released on 1973 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: A sequence of events is necessary for natural regeneration in the pumice soil region: Adequate seed must be probed and distributed over the area, germination must be favored by warm and moist surface soils, daily surface temperature variation must be moderate, seedlings must survive summer drought, and weather conditions must prevent severe frost heaving the fall after germination and the next spring. This sequence does not always occur within a reasonable time after cutting, and natural regeneration is often delayed. Four possibilities are open to the land manager: (1) declare as noncommercial some severe sites such as lodgepole pine/needlegrass and lodgepole pine/bitterbrush/needlegrass plant communities on flat or basin topography; (2) depend more on a planting program; (3) leave a light slash cover on the surface after shelterwood or narrow strip cutting; and (4) leave a shelterwood on the area after a more thorough slash treatment and be willing to wait much longer than 5 years for natural regeneration. Some problems now exist in obtaining good lodgepole planting stock. Also the slash cover does not guarantee success of natural regeneration and option 3 might turn into option 4.
Download or read book Site Preparation for Establishing Lodgepole Pine on Backlog Sites in the Sub boreal Spruce Zone written by Macadam, A. (Anne) and published by Silviculture Practices Section. This book was released on 2001 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Site Index for Lodgepole Pine written by Joseph V. Basile and published by . This book was released on 1971 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Management of Lodgepole Pine in Even aged Stands in the Central Rocky Mountains written by Robert R. Alexander and published by . This book was released on 1981 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Site Indexes for Lodgepole Pine with Corrections for Stand Density written by Robert R. Alexander and published by . This book was released on 1967 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
