How To Interpret Tree Mortality On Large Scale Color Aerial Photographs
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How To Interpret Tree Mortality On Large Scale Color Aerial Photographs
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Author : Frank C. Croft
language : en
Publisher:
Release Date : 1982
How To Interpret Tree Mortality On Large Scale Color Aerial Photographs written by Frank C. Croft and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1982 with Aerial photography in forestry categories.
How To Interpret Tree Mortality On Large Scale Color Aerial Photographs
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Author :
language : en
Publisher:
Release Date : 1982
How To Interpret Tree Mortality On Large Scale Color Aerial Photographs written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1982 with categories.
Large Scale Color Aerial Photography As A Tool In Sampling For Mortality Rates
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Author : David Arthur Hamilton
language : en
Publisher:
Release Date : 1981
Large Scale Color Aerial Photography As A Tool In Sampling For Mortality Rates written by David Arthur Hamilton and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1981 with Aerial photography in forestry categories.
Large Scale Color Aerial Photography As A Tool In Sampling For Mortality Rates Classic Reprint
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Author : David Alexander Hamilton Jr
language : en
Publisher: Forgotten Books
Release Date : 2018-03-17
Large Scale Color Aerial Photography As A Tool In Sampling For Mortality Rates Classic Reprint written by David Alexander Hamilton Jr and has been published by Forgotten Books this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-03-17 with categories.
Excerpt from Large-Scale Color Aerial Photography as a Tool in Sampling for Mortality Rates Mortality rates, diameter increment rates, and height increment rates are the key components of all yield predictions. Mortality rates are the weakest of the three components. Information on diameter and height increment rates is readily available from silvicultural research plots where scientists have studied growth under a wide array of environmental conditions and management strategies. In addition, in most forest survey or management planning inventories, information on current diameter and height increment rates is collected. Where such data are not readily avail able, diameter and height increment can be ob served ln a single visit to the plot. Annual rings and nodal scars provide the time scale that makes these measurements possible on many species growing in temperate forests. There is no com parable time scale for easily and accurately post dating mortality. Thus, data describing the occur rence of mortality is more difficult to obtain. Silvicultural research plots on which individual trees have been measured for many years provide a potential source of data for estimating relation ships between stand and tree characteristics and mortality rates. However, use of such data is severely weakened by the common practice of deleting plots containing heavier than average mortality from the experiment. Further, such data are not available for all species and localities and do not provide measures of current levels of mortality. Many mortality surveys estimate the amount of dead timber in a population by counting dead trees, measuring the volume of dead trees, or measuring the number of acres that contain a substantial number of dead trees. Such informa tion is of little value in predicting future mortality. 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.
Identification Of Tree Species On Large Scale Panchromatic And Color Aerial Photographs
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Author : Robert Chester Heller
language : en
Publisher:
Release Date : 1964
Identification Of Tree Species On Large Scale Panchromatic And Color Aerial Photographs written by Robert Chester Heller and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1964 with Aerial photography in forestry categories.
Mapping Pine Mortality By Aerial Photography Umstead State Park North Carolina
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Author : Clarence J. DeMars
language : en
Publisher:
Release Date : 1982
Mapping Pine Mortality By Aerial Photography Umstead State Park North Carolina written by Clarence J. DeMars and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1982 with Forest mapping categories.
In 1975-1976, pine trees killed by the southern pine beetle (Dendroctonus frontalis Zimm.) in a 2170-hectare (5362-acre) area at the William B. Umstead State Park in central North Carolina, were monitored by sequential color infrared aerial photography. From 1973 through summer 1975, beetles in 350 infestation spots killed more than 20,500 pines on 137 hectares (339 acres). From October 1975 to July 1976, an additional 301 dead pines were detected at 146 tree mortality centers. Southern pine beetles were associated with 98 percent of these dead trees. Pine mortality dropped rapidly from 248 trees killed in fall and winter at 120 spots to 9 trees killed in July at six spots. The volume of timber killed during the outbreak exceeded 16,000 m3 (7500 cords) of roundwood valued at more than $240,000. Strictly speaking, this is not an economic loss because the Park's management goal is to maintain a "natural forest."
Impacts Of Backcountry Recreation
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Author : David N. Cole
language : en
Publisher:
Release Date : 1981
Impacts Of Backcountry Recreation written by David N. Cole and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1981 with Aerial photography in forestry categories.
General Technical Report Int
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Author :
language : en
Publisher:
Release Date : 1982
General Technical Report Int written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1982 with Forests and forestry categories.
Interpretation Of Aerial Photography Of Colorado S Forest Health Monitoring Plots 1992 1995
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Author : Erik Johnson
language : en
Publisher:
Release Date : 1997
Interpretation Of Aerial Photography Of Colorado S Forest Health Monitoring Plots 1992 1995 written by Erik Johnson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Aerial photography in forestry categories.
Research Paper Int
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Author :
language : en
Publisher:
Release Date : 1981
Research Paper Int written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1981 with Forests and forestry categories.