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Full-Text Articles in Life Sciences
Vegetative And Edaphic Responses In A Northern Mixed Conifer Forest Three Decades After Harvest And Fire: Implications For Managing Regeneration And Carbon And Nitrogen Pools, R. Kasten Dumroese, Martin Jurgensen, Deborah S. Page-Dumroese
Vegetative And Edaphic Responses In A Northern Mixed Conifer Forest Three Decades After Harvest And Fire: Implications For Managing Regeneration And Carbon And Nitrogen Pools, R. Kasten Dumroese, Martin Jurgensen, Deborah S. Page-Dumroese
Michigan Tech Publications
Research Highlights: This experiment compares a range of combinations of harvest, prescribed fire, and wildfire. Leveraging a 30-year-old forest management-driven experiment, we explored the recovery of woody species composition, regeneration of the charismatic forest tree species Larix occidentalis Nutt., and vegetation and soil carbon (C) and nitrogen (N) pools. Background and Objectives: Initiated in 1967, this experiment intended to explore combinations of habitat type phases and prescribed fire severity toward supporting regeneration of L. occidentalis. At onset of the experiment, a wildfire affected a portion of the 60 research plots, allowing for additional study. Our objective was to better understand …
Suckering Response Of Aspen To Traffic-Induced-Root Wounding And The Barrier-Effect Of Log Storage, Kevin N. Renkema, Simon M. Landhausser, Victor J. Lieffers
Suckering Response Of Aspen To Traffic-Induced-Root Wounding And The Barrier-Effect Of Log Storage, Kevin N. Renkema, Simon M. Landhausser, Victor J. Lieffers
Aspen Bibliography
In a growth chamber, we tested how the seasonal timing of placing a physical barrier (simulating a possible effect of log storage) and inflicting root damage impacted aspen (Populus tremuloides Michx.) root systems and their suckering capability. Roots from 4-year-old saplings were used, and one half of these root systems had the above-ground portion cut in the winter (dormant) while the other half was cut during the growing season in the summer. Damage was inflicted to the roots by driving a large farm tractor over them, and a covering treatment was applied using a polystyrene board to prevent suckers from …
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 …
Hydrologic Recovery Of Aspen Clearcuts In Northwestern Alberta, R H. Swanson, R L. Rothwell
Hydrologic Recovery Of Aspen Clearcuts In Northwestern Alberta, R H. Swanson, R L. Rothwell
Aspen Bibliography
A 3-year study of evapotranspiration from aspen clearcuts 1 to 14 years of age indicated the following: (1) The annual evapotranspiration from 1- to 5-year-old clearcuts ranges from 0 to 143 mm less than a mature forest on the same site. Evapotranspiration is highly dependent upon the amount of precipitation. (2) These effects can vanish in as few as 2 years with low precipitation (300 mm) or persist for 40 to 45 years with high precipitation (600 mm). These results were confirmed by data from the Spring Creek experimental watershed. Simulated water yield increase from the harvested catchment averaged 16 …
Logging In Alaska's Boreal Forest: Creation Of Grasslands Or Enhancement Of Moose Habitat, William B. Collins, Charles C. Schwartz
Logging In Alaska's Boreal Forest: Creation Of Grasslands Or Enhancement Of Moose Habitat, William B. Collins, Charles C. Schwartz
Aspen Bibliography
Timber harvest in Alaska’s boreal forest can greatly enhance or severely reduce moose (Alces alces) habitat quality, depending on forest management objectives, timing and methods of harvest, and post-logging site preparation. Overstory removal associated with timely exposure of mineral soil favors establishment of early successional hardwoods important as moose browse. A combination of clear-cutting and soil scarification on mesic sites mimics fire, windfall, and fluvial erosion, important natural forces that drive regeneration of the boreal forest. When cut during dormancy, aspen (Populus tremuloides) and balsam poplar (P. balsamifera) Regenerate prolifically by root and stump …
Soil Nitrogen Dynamics Following Harvesting And Conversion Of Red Alder And Douglas-Fir Stands, H. Van Miegroet, P. S. Homann, D. W. Cole
Soil Nitrogen Dynamics Following Harvesting And Conversion Of Red Alder And Douglas-Fir Stands, H. Van Miegroet, P. S. Homann, D. W. Cole
Watershed Sciences Faculty Publications
Drastic reductions in NO3- leaching have been observed after harvesting of mature red alder (Alnus rubra Bong.) stands. Our objective was to examine whether these reduction were linked to changes in soil N dynamics. Adjacent alder and Douglas fir [Pseudotsuga menziessii (Mirbel.) Franco] stands on young glacial soils (Alderwood; a loamy-skeletal, mixed, mesic, ortstein Aquic Haplorthod) in western Washington were harvested and replanted with either alder or Douglas fir seedlings; reference plots were established in nearby undisturbed stands. Three years after site conversion, when NO3- leaching declined most drastically in the harvested alder plots, net N mineralization and net nitrification …
Aspen Management For The 21st Century: Proceedings Of A Symposium, S. Navratil, P.B. Chapman
Aspen Management For The 21st Century: Proceedings Of A Symposium, S. Navratil, P.B. Chapman
Aspen Bibliography
No abstract provided.
The Impact Of Aspen Harvesting On Site Productivity, David H. Alban
The Impact Of Aspen Harvesting On Site Productivity, David H. Alban
Aspen Bibliography
Aspen management can affect site productivity in two major ways: First, aspen accumulates large amounts of nutrients (especially Ca) in its biomass. Harvesting removes these nutrients from the site and, in the long run, site quality will decline if these nutrients are not replenished. Second, the harvesting operation itself can cause site quality loss through soil physical disturbance or through accelerated soil organic matter decomposition and nutrient leaching losses. Our understanding of the processes controlling site productivity is very weak, therefore our ability to predict the consequences of management activities on site productivity is very limited. Current research will help …
A Survey Of The Harvesting Histories Of Some Poorly Regenerated Aspen Stands In Northern Minnesota, P.C. Bates, C.R. Blinn, A.A. Alm
A Survey Of The Harvesting Histories Of Some Poorly Regenerated Aspen Stands In Northern Minnesota, P.C. Bates, C.R. Blinn, A.A. Alm
Aspen Bibliography
No abstract provided.
Ecosystem Carbon Following Aspen Harvesting In The Upper Great Lakes, David H. Alban, D.A. Perala
Ecosystem Carbon Following Aspen Harvesting In The Upper Great Lakes, David H. Alban, D.A. Perala
Aspen Bibliography
No abstract provided.
Aspen Stand Development In Beltrami County, Minnesota, G.P. Hove, C.R. Blinn
Aspen Stand Development In Beltrami County, Minnesota, G.P. Hove, C.R. Blinn
Aspen Bibliography
No abstract provided.
The Lake States' Aspen Resource Revisited: Mid-1960s-1987, J.S. Spencer Jr., E.C. Leatherberry, N.P. Kingsley
The Lake States' Aspen Resource Revisited: Mid-1960s-1987, J.S. Spencer Jr., E.C. Leatherberry, N.P. Kingsley
Aspen Bibliography
No abstract provided.
Utilization And Marketing As Tools For Aspen Management In The Rocky Mountains, D.L. Hessel, D.R. Betters, T.J. Loring, L.D. Porter, J.E. Bennett
Utilization And Marketing As Tools For Aspen Management In The Rocky Mountains, D.L. Hessel, D.R. Betters, T.J. Loring, L.D. Porter, J.E. Bennett
Aspen Bibliography
No abstract provided.
Applying Research Information To Aspen Management Decisions--National Forests, David L. Hessel
Applying Research Information To Aspen Management Decisions--National Forests, David L. Hessel
Aspen Bibliography
No abstract provided.