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Full-Text Articles in Life Sciences
Pine Reproduction In Itasca State Park: Analysis In Moisture-Nutrient Coordinates, Vilis Kurmis, Henry L. Hansen
Pine Reproduction In Itasca State Park: Analysis In Moisture-Nutrient Coordinates, Vilis Kurmis, Henry L. Hansen
Journal of the Minnesota Academy of Science
Natural pine reproduction was studied in 36 forest communities representing the range of ecological variability of the upland forest in Itasca Park, Minnesota. The method of synecological coordinates was used to evaluate reproduction in relation to stand and site conditions. In the absence of fire, predominantly medium to nutrient-rich forest soils favor the growth of herbs, shrubs, and hardwoods under the open canopies of pine and aspen stands. There are very few red pine (Pinus resinosa Ait.) and jack pine (Pinus banksiana Lamb.) seedlings under these conditions, and growth of white pine (Pinus strobus L.) seedlings is severely restricted.
Mature Pine Forests In Duluth Harbor Area, Donald W. Davidson, John B. Bernard
Mature Pine Forests In Duluth Harbor Area, Donald W. Davidson, John B. Bernard
Journal of the Minnesota Academy of Science
Quantitative and qualitative studies have been made on mature pine forests of selected areas on Minnesota Point and Wisconsin Point in the Duluth-Superior Harbor area. The forests were sampled by the point quarters method. The leading dominant in the Minnesota forest was Pinus resinosa, while the leading dominant in the Wisconsin forest was Pinus strobus. Trees up to 173 years of age were found on Minnesota Point, while the maximum age of the trees sampled on Wisconsin Point was 142 years. A total of 87 species of vascular plants were identified in the two areas.
An Analysis Of Selected Red Pine Stands In Itasca State Park, Minnesota, Roy K. Blowers
An Analysis Of Selected Red Pine Stands In Itasca State Park, Minnesota, Roy K. Blowers
Journal of the Minnesota Academy of Science
No abstract provided.
A Study To Determine Optimum Plot Size For Progeny Testing Red Pine, George M. Blake
A Study To Determine Optimum Plot Size For Progeny Testing Red Pine, George M. Blake
Journal of the Minnesota Academy of Science
No abstract provided.
The Control Pollination Of Slash Pine, James T. Greene
The Control Pollination Of Slash Pine, James T. Greene
Journal of the Minnesota Academy of Science
No abstract provided.
Geographic Distribution Of Jack Pine, Pinus Banksiana, In Minnesota And Some Observations On Genetic Variations, Thomas D. Rudolph
Geographic Distribution Of Jack Pine, Pinus Banksiana, In Minnesota And Some Observations On Genetic Variations, Thomas D. Rudolph
Journal of the Minnesota Academy of Science
No abstract provided.
An Ecological Study Of The Upland Conifers Of Itasca State Park, Vernance Beste
An Ecological Study Of The Upland Conifers Of Itasca State Park, Vernance Beste
Journal of the Minnesota Academy of Science
No abstract provided.
Some Observations In Progeny Tests Of Slash Pine In Georgia, John C. Barber
Some Observations In Progeny Tests Of Slash Pine In Georgia, John C. Barber
Journal of the Minnesota Academy of Science
No abstract provided.
Winter Damage And Seed Source Of Planted Pines In Northern Minnesota, Paul O. Rudolf
Winter Damage And Seed Source Of Planted Pines In Northern Minnesota, Paul O. Rudolf
Journal of the Minnesota Academy of Science
No abstract provided.