Vil 
FOREWORD 
The technical program of the Symposium concentrated on the 
application of photo interpretation and remote sensing to resource 
inventories and environmental studies. The Working Groups and Project Teams 
of Commission VII were the foci for exchanges on these and related topics. 
The papers in the Proceedings are grouped under the following 
topics: Land Use, Resource Inventories, Water and Wetlands, Environmental 
Monitoring, Vegetation Damage, Special Applications, Geology, and 
Interpretation and Analysis. 
The Proceedings include papers presented at the Symposium and those 
read by title only. 
The papers were, with a few exceptions, reproduced as received from 
the authors without major editing and retyping. Papers and abstracts written 
in German and French were, in most cases, left unchanged. Abstracts that 
were not incorporated in the text were placed at the end of the paper to 
which it belonged. Accordingly, some lack of uniformity in type, format and 
style will be noted but, in such a rapidly moving field, it seemed important 
to delay publication as little as possible. 
Commission VII would like to thank all those who have contributed 
manuscripts. 
Secretary Commission VII 
Copies of the Proceedings may be obtained for $15 eg.ch from the 
Canadian Institute of Surveying, 512 Rochester Street, Ottawa, Ontario.