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We use ten classifications
of land use types, which were adapted from past Colby studies of other lakes
in the area. In some of the
land use analyses, we used exceptions to these classifications.
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For the 2002 map, mature
and transitional forest were grouped into a single category of forest. This is because the photographs were
taken in April, at which time no leaves were on the trees, and it was therefore
impossible to distinguish mature from transitional forest.
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For the land use change
map, the classifications were grouped into other broader categories to
enable comparisons between the two maps. For example, old field and cleared land were group into a
disturbed forest category; cropland, hayland, and pasture were grouped into
the category of agriculture; and the residential and commercial/municipal
classifications were grouped into developed land.
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