Airphoto assessment of changes in aquatic vegetationLarge scale, multiyear, color and color infrared aerial photographs were used to evaluate changes in aquatic vegetation that have accompanied a reduction in phosphorus inputs to a phosphorus-limited, eutrophic lake in New York State. The study showed that the distribution of emergent, floating and submersed vegetation could be determined with little or no concurrent ground data; that various emergent and floating types could be separated and, with limited field checks, identified; and that different submersed types are generally not separable. Major vegetative types are characterized by spectral and nonspectral features, and a classification is developed for compiling time-sequential vegetation maps.
Document ID
19770045000
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Markham, B. L. (Cornell Univ. Ithaca, NY, United States)
Philipson, W. R. (Cornell Univ. Ithaca, NY, United States)
Russel, A. E. (Cornell University Ithaca, N.Y., United States)
Date Acquired
August 8, 2013
Publication Date
January 1, 1977
Subject Category
Environment Pollution
Report/Patent Number
ASP 77-162
Meeting Information
Meeting: Annual Meeting of the American Society of Photogrammetry