Shenandoah National Park Long-term Ecological Monitoring System User Manuals PDF Download

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Category : Environmental monitoring
Languages : en
Pages : 322

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Author: F. William Ravlin
Publisher: Forgotten Books
ISBN: 9780266951933
Category : Business & Economics
Languages : en
Pages : 324

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Excerpt from Shenandoah National Park Long-Term Ecological Monitoring System User Manuals The concept of ecosystem management has been suggested recently as the most effective means for appropriate stewardship of national parks (johnson and Agee 1988, Agee and Johnson They explain this strategy as follows. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

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Category : Environmental monitoring
Languages : en
Pages : 0

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Author: J. R. Voshell Jr.
Publisher: Forgotten Books
ISBN: 9780266879954
Category : Technology & Engineering
Languages : en
Pages : 136

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Excerpt from Shenandoah National Park Long-Term Ecological Monitoring System: Section III., Aquatic Component User Manual Geological formations were selected as the sec ond level of classification because the snp has a uniquely diverse geology and resulting water chemis try, particularly alkalinity. There are great differences among watersheds, and often between adjacent watersheds. Alkalinity and related water chemistry are probably significant factors affecting the distribu tion of the aquatic biota. Information on geological formations and alkalinity can be obtained from Gathright (1976) and Dise respectively. Streams in the snp seldom have their watersheds entirely within a single geological formation. An effort should be made to establish stream sites in watersheds which have at least 75% of their area within one of the geological formation categories. Elevation affects the distribution of aquatic biota indirectly because of factors such as stream width, depth, current velocity, valley shading and tempera ture. The snp is located entirely within the northern section of the Blue Ridge physiographic province, which is the narrow (about 8 km) mountainous area between the low-lying Piedmont province to the east and the Ridge and Valley province to the west (hoffman 1969, Gathright Because of the narrow moun tainous, characteristics of the Blue Ridge, drainage basins in this province typically have a steep gradient. Drainage basins on the west slope follow -a trellis pattern, in which the small streams flowing down the mountains are parallel and join the main stream in the valley (shenandoah River) at right angles (reid and Wood Those on the east slope follow a den dritic pattern, so-called because of the resemblance to tree roots (reid and Wood The criterion of m (1800 ft) for distinguishing upper and lower sites was selected because field observations indi cated that streams in the snp tended to become very narrow and shallow (several m wide and less than knee deep) approximately above that elevation. This delimitation is somewhat arbitrary and can be varied within reason when it is desirable to have both an upper and lower site on the same stream. Elevation is best determined from the Potomac Appalachian Trail Club maps (scale The usgs min topographic maps are not as useful because they are not as accurate regarding trails, fire roads, and stream permanency. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

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Category : Conservation of natural resources
Languages : en
Pages : 30

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Author: Caryl L. Elzinga
Publisher: DIANE Publishing
ISBN: 9780788148378
Category :
Languages : en
Pages : 190

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This annotated bibliography documents literature addressing the design and implementation of vegetation monitoring. It provides resources managers, ecologists, and scientists access to the great volume of literature addressing many aspects of vegetation monitoring: planning and objective setting, choosing vegetation attributes to measure, sampling design, sampling methods, statistical and graphical analysis, and communication of results. Over half of the 1400 references have been annotated. Keywords pertaining to the type of monitoring or method are included with each bibliographic entry. Keyword index.

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Category : Forests and forestry
Languages : en
Pages : 278

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Author: Society for Ecological Restoration. Conference
Publisher:
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Category : Fire ecology
Languages : en
Pages : 804

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Category :
Languages : en
Pages : 166

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Category : Government publications
Languages : en
Pages : 1508

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