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 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 Tree Growth and Water Use Response to Thinning in a 47 year old Lodgepole Pine Stand written by Walter G. Dahms and published by . This book was released on 1973 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Watering Shading and Size of Stock on Survival of Planted Lodgepole Pine written by Norman Baer and published by . This book was released on 1977 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Thinning Pole sized Lodgepole Pine on Understory Vegetation and Large Herbivore Activity in Central Colorado written by Glenn LeRoy Crouch and published by . This book was released on 1986 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 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 Relationship of Seed Microsite to Germination and Survival of Lodgepole Pine on High elevation Clearcuts in Northeastern Utah written by and published by . This book was released on 2002 with total page 8 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 A Climate sensitive Analysis of Lodgepole Pine Site Index in Alberta written by Xiaojing Guo and published by . This book was released on 2005 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Growth and yield models in forest management are derived from past observations, assuming implicitly that future growth conditions will be similar. Local observations of apparent changes in site index (SI: defined as the top height at 50 years breast height age) of lodgepole pine in Alberta during the 20th century raise serious questions about validity of this assumption. As part of a joint program on climate change in Alberta by Canadian Forest Service and Laval University, this thesis aims at investigating the impacts from climate change on the site index based on a process-based forest growth model, StandLEAP. Data processing techniques, nonlinear regression and time series analysis are conducted to obtain the necessary models. The research involves the calibration of a climate-sensitive site index model. This model is then used to explain Sl variability between 1901 and 2000 for each plot. A significant SI increment of 4 mm/year appears on average. This change is significant over 100 to 200 years, the time period used to check that the projected cut can be sustained by the forest over the long term. Over this time period, stand SI will change from .4 to .8 m, more than half of a site index class. The results suggest that climate is an important factor affecting lodgepole pine productivity in Alberta, and have implications for future forest management under a warmer climate.
Download or read book Regeneration and Early Growth on Strip Clearcuts in Lodgepole Pine bitterbrush Habitat Type written by David A. Perry and published by . This book was released on 1977 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Problems in Lodgepole Pine Thinnings written by Dennis M. Cole and published by . This book was released on 1993 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Climate sensitive Analysis of Lodgepole Pine Site Index in Alberta written by Xiao Jing Guo and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Attrition of lodgepole pine snags on the Sleeping Child Burn Montana written by L. Jack Lyon and published by . This book was released on 1977 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Growth simulation Model for Lodgepole Pine in Central Oregon written by Walter G. Dahms and published by . This book was released on 1983 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Intensive Fertilization on the Foliar Nutrition and Growth of Young Lodgepole Pine Forests in the British Columbia Interior written by Robert Peter Brockley and published by . This book was released on 2010 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Beginning in 1992, the British Columbia Ministry of Forests established a small network of lodgepole pine and interior spruce nutrient optimization research installations on representative sites within three major biogeoclimatic (BEC) zones in the British Columbia Interior. The objectives of the long-term "maximum productivity" study are to (1) compare the effects of different regimes and frequencies of repeated fertilization on the foliar nutrition, growth, and development of young interior forests, and (2) determine the effects of large nutrient additions on above- and below-ground timber and non-timber resources. This report examines the effects of repeated fertilization on foliar nutrition and tree- and stand-level growth and development over 12 years at the five lodgepole pine study sites.--Document.
Download or read book Use of Site Factors to Predict Lodgepole Pine and Interior Spruce Site Index in the Sub boreal Spruce Zone written by and published by . This book was released on 1994 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Site index is the measure of a given tree species' productivity. Relationships between site index & ecological site quality have been the focus of recent research efforts in British Columbia that have used categorical measures of ecological site quality to explain the variation in site index of major tree species. This report describes a study that expands these efforts to lodgepole pine & interior spruce. To establish a link between ecological site quality & forest productivity in the sub-boreal spruce zone of the Prince Rupert Forest Region, site index & site data were obtained from 93 lodgepole pine stands and 77 interior spruce stands distributed across two climatic regimes, eight soil moisture regimes, and five soil nutrient regimes. These regimes were used as categorical variables to stratify the stands and in the subsequent regression analysis of the data. Six types of regression models were developed and one model, which showed strong relationships between site index & some ecological parameters, was used to draft site index isolines which were then superimposed onto edatopic grids. The results test the capability of estimates of soil moisture & soil nutrient regimes as predictors of pine & spruce site index.
