Proceedings of Symposium on Remote Sensing and Photo Interpretation: Proceedings of Symposium on Remote Sensing and Photo Interpretation

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Multivolume work

Persistent identifier:: 842147969

Title:: Proceedings of Symposium on Remote Sensing and Photo Interpretation

Sub title:: October 7 - 11, 1974, Banff, Alberta, Canada

Year of publication:: 1974

Place of publication:: Ottawa, Ontario

Publisher of the original:: Canadian Inst. of Surveying

Identifier (digital):: 842147969

Language:: German

Other Title:: Nebentitel: Proceedings : Symposium on Remote Sensing and Photo Interpretation

Corporations:: Symposium on Remote Sensing and Photo Interpretation, 1974, Banff, Alberta; International Society for Photogrammetry, Commission Interpretation of Data; Canadian Institute of Surveying

Adapter:: Symposium on Remote Sensing and Photo Interpretation, 1974, Banff, Alberta; International Society for Photogrammetry, Commission Interpretation of Data; Canadian Institute of Surveying

Founder of work:: Symposium on Remote Sensing and Photo Interpretation, 1974, Banff, Alberta; International Society for Photogrammetry, Commission Interpretation of Data; Canadian Institute of Surveying

Other corporate:: Symposium on Remote Sensing and Photo Interpretation, 1974, Banff, Alberta; International Society for Photogrammetry, Commission Interpretation of Data; Canadian Institute of Surveying

Document type:: Multivolume work

Volume

Persistent identifier:: 84214806X

Title:: Proceedings of Symposium on Remote Sensing and Photo Interpretation

Sub title:: October 7 - 11, 1974, Banff, Alberta, Canada

Scope:: VII, 465 Seiten

Year of publication:: 1974

Place of publication:: Ottawa, Ontario

Publisher of the original:: Canadian Inst. of Surveying

Identifier (digital):: 84214806X

Illustration:: Illustration, Diagramme, Karten

Signature of the source:: T 15 B 1305

Language:: German

Usage licence:: Attribution 4.0 International (CC BY 4.0)

Corporations:: Symposium on Remote Sensing and Photo Interpretation, 1974, Banff, Alberta; International Society for Photogrammetry, Commission Interpretation of Data; Canadian Institute of Surveying

Adapter:: Symposium on Remote Sensing and Photo Interpretation, 1974, Banff, Alberta; International Society for Photogrammetry, Commission Interpretation of Data; Canadian Institute of Surveying

Founder of work:: Symposium on Remote Sensing and Photo Interpretation, 1974, Banff, Alberta; International Society for Photogrammetry, Commission Interpretation of Data; Canadian Institute of Surveying

Other corporate:: Symposium on Remote Sensing and Photo Interpretation, 1974, Banff, Alberta; International Society for Photogrammetry, Commission Interpretation of Data; Canadian Institute of Surveying

Publisher of the digital copy:: Technische Informationsbibliothek Hannover

Place of publication of the digital copy:: Hannover

Year of publication of the original:: 2015

Document type:: Volume

Collection:: Earth sciences

Chapter

Title:: VEGETATION DAMAGE CHAIRMAN. - A. REINHOLD

Document type:: Multivolume work

Structure type:: Chapter

Chapter

Title:: INTERPRETATION OF VEGETATION DAMAGE, EXTENSIVELY MANAGED LANDS. Peter A. Murtha

Document type:: Multivolume work

Structure type:: Chapter

INTRODUCTION Extensively managed lands are those lands whose vastness precludes intensive managements. Such lands,' exclusive of agriculture crops, are usually open to forest exploitation, or grazing by wild mammals or domestic livestock. In rare instances some areas have been reserved as "wilderness" and eliminated from aspects of commercial exploitation. Across all these lands a need resides to monitor the "health" of the vegetation since poor health means "damaged" vegetation, and damaged vegetation usually means a loss of potentially commer cial or recreational values. Over forested lands this is caused by either insect or disease damage, air pollution, wind storms, or fire. Over range lands, the damage is caused by drought, fire, insects or overgrazing. This paper reports on the present capability to monitor vegetation for indications of damage through, remote sensing and interpretation techniques, as indicated by published reports in the literature known to the author. Future needs are speculated upon. RECENT LITERATURE In 1971, Heller, in a general paper on interpretation of color and false-color photographs, outlined the state of photo interpretation for forest vegetation damage interpretation. Some of the points made in the paper are viewed in retrospect and commented upon here: 1. The usefulness of various photographic scales using either color or color-infrared film had either not been tested or was considered not useful. For example, delineation of spruce budworm ( Choristo- neura fumiferana Clem.) defoliation on color-infrared photos had not been tested, and only large-scale (1:600 to 1:2,000) color photos were considered good for damage delineation. At photographic scales smaller than 1:15,840, both color and color-infrared photos were considered not useful for oxidant air-pollution interpretation, oak wilt interpretation, and balsam woolly aphid ( Adelqes pioea (Ratz.) damage. 2. The use of normal-color air photos had not been tested for either dwarf mistletoe ( Avouethobium spp.) or the ubiquitous Dutch elm disease (i Ceratocystis ulmi (Buism) C. Moreau). But studies had been done on oak wilt ( Ceratooystis fagacearum (Bretz) Hunt) and small scale (1:15,840 or smaller) photos were considered not useful. 3. Photo interpretation of forest damage was being done on a piecemeal basis according to the "classical textbook" breakdown of insect and diseases into bark beetles, sucking insects, defoliators, terminal feeders, air pollution, Dutch elm disease, oak wilt, etc. It is now apparent that a) each bark beetle seemed to be listed separately and special studies designed for that particular insect; b) very little emphasis was given to the final appearance of the damage syndrome, and c) such a piecemeal approach to individual insects and diseases

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