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Download or read book Research Natural Area Needs in the Pacific Northwest written by C. T. Dyrness and published by . This book was released on 1975 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research Natural Areas are examples of typical and distinctive natural ecosystems and habitats reserved for scientific and educational use. This outline of the minimal Research Natural Area system needed to provide adequate field laboratories for ecological, environmental, and land management research was developed by an interinstitutional, interdisciplinary working group. Natural area needs were first described on the basis of individual organisms, habitats, or ecosystems which should be represented. These "cells," the basic building blocks in defining the total scope of the system, considered terrestrial and aquatic environments as well as rare and endangered species. Identified cells were matched against existing Research Natural Areas to determine which were already filled. The remaining, unfilled cells were then tentatively grouped as units which were listed as Research Natural Area needs. A minimal Research Natural Area system for Oregon and Washington requires approximately 360 tracts which, in turn, incorporate over 770 individual cells (ecosystems, habitats, or organisms). Since 60 Research Natural Areas are already established, about 300 additional areas are needed. These remaining needs were assigned a priority (low, medium, or high) based on importance and degree to which they are endangered, as well as identified as to the Federal, State, or private agency or institution most likely to be able to provide a tract of that type. The purpose of Research Natural Areas, their place in land planning, history of Research Natural Area activities in the Pacific Northwest, and general observations and recommendations on unresolved problems are also outlined.
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Download or read book Geologic Hazards of the Bull Run Watershed Multnomah and Clackamas Counties Oregon written by John D. Beaulieu and published by . This book was released on 1974 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Download or read book Final Environmental Statement written by United States. Forest Service. Pacific Northwest Region and published by . This book was released on 1977 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Download or read book Department of the Interior and Related Agencies Appropriations for Fiscal Year 2007 written by United States. Congress. Senate. Committee on Appropriations. Subcommittee on the Department of the Interior and Related Agencies and published by . This book was released on 2006 with total page 1884 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Department of the Interior and Related Agencies Appropriations for written by United States. Congress. Senate. Committee on Appropriations and published by . This book was released on 2007 with total page 1880 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Download or read book Interior Environment and Related Agencies Appropriations for 2016 written by United States. Congress. House. Committee on Appropriations. Subcommittee on Interior, Environment, and Related Agencies and published by . This book was released on 2015 with total page 904 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Regional Drinking Water Supplies written by United States. Congress. House. Committee on Small Business. Subcommittee on Regulation, Business Opportunities, and Energy and published by . This book was released on 1991 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Interior Environment and Related Agencies Appropriations for 2010 written by United States. Congress. House. Committee on Appropriations. Subcommittee on Interior, Environment, and Related Agencies and published by . This book was released on 2009 with total page 1238 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geohydrology and Susceptibility of Major Aquifers to Surface Contamination in Alabama written by Rick D. Castleberry and published by . This book was released on 1989 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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