Download or read book Regenerating Quaking Aspen written by Peter C. Bates and published by . This book was released on 1991 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Regeneration Dynamics of Persistent Quaking Aspen Populus Tremuloides in Western Colorado written by Brian Paul Kurzel and published by . This book was released on 2004 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Regeneration of Aspen by Suckering on Burned Sites in Western Wyoming written by Dale L. Bartos and published by . This book was released on 1991 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Regeneration of Quaking Aspen by Root Suckering written by Dixon Sandberg and published by . This book was released on 1951 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Factors Affecting the Regeneration of Quaking Aspen written by Peter C. Bates and published by . This book was released on 1988 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Regeneration and Productivity of Aspen Grown on Repeated Short Rotations written by Donald A. Perala and published by . This book was released on 1979 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Initial Growth Development and Clonal Dynamics of Regenerated Aspen in the Rocky Mountains written by Wayne D. Shepperd 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 Response of Aspen Root Suckers to Regeneration Methods and Post harvest Protection written by Wayne D. Shepperd and published by . This book was released on 1996 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Quaking Aspen Regeneration in Northern Minnesota written by Peter Caldwell Bates and published by . This book was released on 1990 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Impacts of Harvesting on Regeneration Productivity and Floristic Diversity of Quaking Aspen and Northern Hardwood Ecosystems written by Minnesota Forest Resources Council and published by . This book was released on 2001 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aspen Regeneration in 6 to 10 year old Clearcuts in Southwestern Colorado written by Glenn LeRoy Crouch and published by . This book was released on 1986 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Regeneration on an Aspen Clearcut in Arizona written by John Robert Jones and published by . This book was released on 1975 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Influence of Silvicultural Treatments Overstory and Understory Vegetation on Quaking Aspen Populus Tremuloides Regeneration in Southeastern Idaho written by Bethany L. Muñoz and published by . This book was released on 2013 with total page 81 pages. Available in PDF, EPUB and Kindle. Book excerpt: Quaking aspen (Populus tremuloides Michx.) is known to be a widely distributed, shade-intolerant and short-lived hardwood found in both seral, even-aged and stable, uneven aged stands. There have been reports of extensive aspen mortality, crown thinning, and branch dieback across North America that have been linked to the occurrence of severe droughts since 2001-2002. Because of reports of low aspen regeneration across the Intermountain West, as well as predictions of increases in aspen regeneration in the Northeastern US, researchers and land managers have now focused on managing aspen stands under the assumption that there are multiple aspen types. They have focused on improving resilience within quaking aspen stands with changing ecological conditions. For this thesis I focused on a project the Bureau of Land Management (BLM), Pocatello Field Office initiated in part to improve aspen restoration and resilience of stands in Soda Springs, ID. The BLM conducted two mechanical removal treatments: cut and pile, and slash/lop and scatter. In addition several sites were broadcast burned to reduce fuel loads and conifer density, to enhance aspen regeneration and improve aspen stand resilience. According to the Soda Springs Hills Fuels Reduction and Ecosystem Restoration Environmental Assessment (EA), the BLM aimed to meet the objective of 2500 quaking aspen suckers per ha (1000 suckers per ac) within the two years following treatment, an index of treatment adequacy. My primary objective for this thesis was to assess the influence of each silvicultural treatment, including the change in overstory and understory vegetation, on regeneration of aspen. Mean aspen regeneration two growing seasons after treatment was 11,532 suckers/ha on sites that received slash/lop and scatter treatment, followed by broadcast burning. With these high levels of suckering, there were also low densities of residual overstory conifers (d"4 trees/ha with a basal area d"2 m2/ha). In comparison, sites that received the cut and pile treatment followed by a broadcast burn had a mean aspen regeneration of 44 suckers/ha, with higher densities of overstory conifers (e"32 trees/ha with a basal area e"26 m2/ha). In slash/lop and scatter treatments without burning, sucker densities were as high as 1117 suckers/ha with low densities of conifers (0 trees/ha). In comparison, the site that received the cut and pile treatment without burning had an aspen regeneration of 0 suckers/ha, with a high density of conifers (36 trees/ha with a basal area of 47 m2/ha). Overall, sites with low residual overstory cover of large conifer trees (4 trees/ha), regardless of the treatment, had higher sucker densities two growing seasons after treatment (6244 suckers/ha, on average) than those seen in sites with a remnant overstory of16 trees/ha (29 suckers/ha, on average). Also, sites that were burned, regardless of the mechanical treatment used, had higher sucker densities (11,244 suckers/ha) than those seen in sites that were not burned (576 suckers/ha). When comparing aspen sucker densities to competing understory woody cover following mechanical treatment, aspen sucker density was lowest (411 suckers/ha) on the site where both tree and shrub percent cover were highest (10 and 16%, respectively). Suckering appeared to be positively correlated with grass cover, however, with as high as 1117 suckers/ha growing with a high percentage of grass cover (e"26 %), on sites measured for change in understory following mechanical treatment. Results were collected on a small number of sites and thus have limited statistical significance. However, we are confident that observed trends have values for managers. We suggest that transects should continue to be monitored to observe the long-term effects of silvicultural treatments on overstory and understory vegetation, which are likely to be influenced by climate variability and other disturbances into the future.
Download or read book Mixed Conifer and Aspen Regeneration in Small Clearcuts Within a Partially Harvested Arizona Mixed Conifer Forest written by Peter F. Ffolliott and published by . This book was released on 1991 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Production Soil Disturbance and Regeneration of Wide tire Skidder Harvests of Quaking Aspen Stands in East central Minnesota written by Mathew Frank Smidt and published by . This book was released on 1996 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Small Openings in Trembling Aspen Forest written by Arthur Groot and published by Sault Ste. Marie, Ont. : Great Lakes Forestry Centre. This book was released on 1997 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes a study of a 40-year-old trembling aspen stand to examine how microclimate influences the regeneration of white spruce and trembling aspen. In the study, openings of various sizes were created in the stand and measurements were made of microclimatological parameters and tree growth parameters. Results presented include solar radiation, soil and air temperature, humidity, and soil moisture in the various types of openings; seedling-water relationships; first- and second-year establishment ratios; effectiveness of vegetation control treatments; daytime patterns in stomatal conductance and transpiration; height and diameter growth; leaf area index; and differences in height between trees with pruned and unpruned roots.
Download or read book Quaking Aspen written by Kenneth A. Brinkman and published by . This book was released on 1975 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
