Life Sciences Commons^™

Comparing Economic Returns Of Red Pine Plantation Thinning Scenarios Using Forest Vegetation Simulator (Fvs), Curtis L. Vanderschaaf, Gordon Holley, Andrew Arends, Joshua Adams, Donald Deckard

Journal of the Minnesota Academy of Science

Red pine (Pinus resinosa Ait) plantations are an important cover type of Department of Natural Resources (DNR) lands because of relatively high yields and economic value. Out of the approximate 400,000 acres of Minnesota red pine plantations one-fifth of the acreage is managed by the DNR. The DNR recently established a policy to rescind purposeful management to manage all red pine plantations to extended rotation ages, or rotation ages beyond those maximizing economic returns or biological yields. With recent state budget issues, DNR management is under greater scrutiny by the public, particularly on School Trust lands. Hence, most red pine …

Protecting Biological Diversity: A Major Challenge For Minnesota Forestry In The 1990s, David C. Zumeta

Journal of the Minnesota Academy of Science

One of the most significant challenges to Minnesota forestry in the 1990s will be responding to growing public concern about relationships between forestry in Minnesota and global and national environmental issues (e.g., protecting biological diversity, tropical deforestation). Influential citizens and public interest groups are asking penetrating questions about the effects of forest management and timber harvesting on biological diversity, and about parallels between tropical deforestation and timber harvesting in Minnesota.

This article examines some of the relationships between Minnesota forestry and biological diversity. It also describes what is being done, and what needs to be done, to protect biological diversity. …

Direct Impact Of Forest Harvesting In Northeastern Minnesota, Philip L. Friest

Journal of the Minnesota Academy of Science

Direct impact of harvesting operations is examined as one segment in a survey of interrelationships between elements of the primary forest products industry in northeastern Minnesota, an area known popularly as the Arrowhead Region. This study follows classifications used in collection of data for 1977 from seven Minnesota counties. Information is based largely on responses from companies involved. An Input-Output model was employed in the study for assessing expenditures by loggers for wage payments, purchase of timber stumpage, vehicles and equipment operation, financial services, and employee benefits (FICA, etc.). Comparisons of relative proportions of expenditures by loggers within the study …

Distribution In Minnesota Of Acer Saccharum, Tilia Americana And Betula Lutea, Edward Flaccus

Journal of the Minnesota Academy of Science

The distribution in Minnesota of three tree species (Acer saccharum, Betula lutea and Tilia americana) of the northern hardwood type have been plotted, using data from the Third Forest Inventory of the Lake States' Forest Experiment Station, herbaria records and records of occurrence from personal and other's field work. Maps are presented that give more detailed distributions than have heretofore been available. All three species show concentration in a belt along the North Shore of Lake Superior. Acer saccharum and Tilia Americana show the expected close correspondence of distribution in this belt and in a broad extension westward, almost to …

Some Interpretations Of A Map On Minnesota Sawmilling, Lyda Belthuis

Journal of the Minnesota Academy of Science

Sawmilling in Minnesota started about the time of settlement and, until 1870, mainly consisted of small mills located in the southern half of the state. Mills along the Mississippi River were mainly in urban centers while the remainder were scattered and associated with the clearing of the land and the meeting of the needs of local communities. After 1870, mills become larger. Many were constructed in northern Minnesota. All used forests in the northern port of the state and reduced them so greatly that, by 1920, the mills closed and were replaced by portable sawmills.

A Study Of The Northern Upland Forest On The Islands Of The Whitefish Lake Chain, Minnesota, Roy K. Blowers

Journal of the Minnesota Academy of Science

During an investigation of the area of the Whitefish Lakes, it was noted that two definite types of forest communities existed, a conifer forest and a hardwood forest. It was also noted that each type appeared on different parent soil materials. The problem was actually divided into four parts as follows: How well did the vegetation and the parent material correlate? What was the plant succession in the area? How was the plant succession affected by the parent material? And, how was the resulting soil affected by the vegetation?

It was decided that a forest study of islands would give …

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.

Structural Organization Of Forest Ecosystems, Egolfs V. Bakuzis

Journal of the Minnesota Academy of Science

No abstract provided.

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

Journal of the Minnesota Academy of Science

No abstract provided.

Photosynthesis In Aspen Bark During Winter Months, L. C. Pearson, Donald B. Lawrence

Journal of the Minnesota Academy of Science

No abstract provided.

A Basis For Forest Tree Seed Collection Zones In The Lake States, Paul O. Rudolf

Journal of the Minnesota Academy of Science

No abstract provided.

Tree Planting In Lower Michigan Sandblows, Paul O. Rudolf

Journal of the Minnesota Academy of Science

No abstract provided.

Tree-Ring Dating, Waldo S. Glock

Journal of the Minnesota Academy of Science

No abstract provided.

Indicator Value Of Plants In Jack Pine Stands, Henry L. Hansen

Journal of the Minnesota Academy of Science

No abstract provided.

The Development Of The Cedar Creek Forest Natural History Area, Arthur N. Wilcox

Journal of the Minnesota Academy of Science

No abstract provided.

Winter Damage And Seed Source Of Planted Pines In Northern Minnesota, Paul O. Rudolf

Journal of the Minnesota Academy of Science

No abstract provided.

Rafting Days On The Mississippi, Bernhardt J. Kleven

Journal of the Minnesota Academy of Science

No abstract provided.

Alkali Tolerance Of Drought-Hardy Trees And Shrubs In The Seed And Seedling Stage, Joseph H. Stoeckeler

Journal of the Minnesota Academy of Science

No abstract provided.

Hardiness Of Woody Plants In Minnesota, H. E. Stork

Journal of the Minnesota Academy of Science

No abstract provided.

Longevity Of Red Pine Seed, Eugene I. Roe

Journal of the Minnesota Academy of Science

No abstract provided.

The Role Of Forest Fires In The Reproduction Of Black Spruce, R. K. Lebarron

Journal of the Minnesota Academy of Science

No abstract provided.

The Comparative Permeability Of Woods To Liquids, Harvey D. Erickson

Journal of the Minnesota Academy of Science

No abstract provided.

The Shelterbelt Project, J. M. Aikman

Journal of the Minnesota Academy of Science

No abstract provided.

Forests And Glaciers Of Southern Alaska, William S. Cooper

Journal of the Minnesota Academy of Science

No abstract provided.

Will Pine Or Aspen Dominate Minnesota Forests?, Hardy L. Shirley

Journal of the Minnesota Academy of Science

No abstract provided.

Drought Resistance Of Green Ash As Affected By Geographic Origin, L. J. Meuli

Journal of the Minnesota Academy of Science

No abstract provided.

The Interrelationships Of Bark Beetles And Blue-Staining Fungi In Felled Norway Pine Timber, J. G. Leach, L. W. Orr, Clyde Christensen

Journal of the Minnesota Academy of Science

A study of two species of bark beetle (lps pini Say and I. grandicollis Eichh.) and the fungi associated with them has been made as the first part of a general investigation of the interrelations of insects and fungi in the deterioration of felled logs of Norway pine.

Conservation Of The Future Lumber Supply, T. B. Walker

Journal of the Minnesota Academy of Science

No abstract provided.

Notes On The Forest Region Of Northern Idaho, John B. Leiberg

Journal of the Minnesota Academy of Science

No abstract provided.