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Full-Text Articles in Life Sciences
Restoration Of Aspen-Dominated Ecosystems In The Lake States, Douglas M. Stone, John D. Elioff, Donald V. Potter, Donald B. Peterson, Robert Wagner
Restoration Of Aspen-Dominated Ecosystems In The Lake States, Douglas M. Stone, John D. Elioff, Donald V. Potter, Donald B. Peterson, Robert Wagner
Aspen Bibliography
A reserve tree method (RTM) of harvesting was installed in six 70 to 75 year old aspen dominated stands to determine if retaining 10 to 15 dominant aspen per acre would decrease sucker density to facilitate restoration of a conifer component. A reserve shelterwood cut was applied to three additional stands to evaluate performance of white pine planted under 50% crown cover. After the first full growing season following harvest, 96% of the RTM harvested areas were stocked; sucker density averaged 27000 per acre versus 38.2 k per acre on a clearcut control, 41% greater. Basal diameter of dominant suckers …
Quaking Aspen And The Human Experience: Dimensions, Issues, And Challenges, Stephen F. Mccool
Quaking Aspen And The Human Experience: Dimensions, Issues, And Challenges, Stephen F. Mccool
Aspen Bibliography
Humans assign four types of meanings to aspen landscapes: (1) instrumen- tal meanings dealing with the attainment of a goal—such as production of pulp or provision of recreation opportunities; (2) aesthetic meanings; (3) cultural/symbolic meanings dealing with spiritual and social attachments to landscapes; and (4) individual/expressive meanings derived out of interactions with aspen landscapes at the personal level. The amount of knowledge available for each meaning varies, with most knowledge developed for instrumental meanings. Management of aspen occurs within a dynamic social and political context, with greater emphasis being placed on the latter two meanings, but without the empirical, positivist …
Aspen Restoration In The Blue Mountains Of Northeast Oregon, D.M. Shirley, V. Erickson
Aspen Restoration In The Blue Mountains Of Northeast Oregon, D.M. Shirley, V. Erickson
Aspen Bibliography
No abstract provided.
Aspen's Ecological Role In The West, William H. Romme, Lisa Floyd-Hanna, David D. Hanna, Elisabeth Bartlett
Aspen's Ecological Role In The West, William H. Romme, Lisa Floyd-Hanna, David D. Hanna, Elisabeth Bartlett
Aspen Bibliography
Aspen exhibits a variety of ecological roles. In southern Colorado, the 1880 landscape mosaic contained a range of stand ages, of which half were >70 years old and half were younger. Pure aspen stands in southern Colorado are widespread and may result from previous short fire intervals that eliminated local conifer seed sources. Aspen regeneration in northern Yellowstone Park is controlled by ungulate browsing pressure and fire, so it has been limited since 1920. However, an episode of aspen seedling establishment occurred after the 1988 fires. We urgently need additional detailed, local case studies of aspen ecology to inform management …