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High‐altitude Photography in the Development of a Generalized Soil Map
Author(s) -
Rust R. H.,
Finney H. R.,
Hanson L. D.,
Wright H. E.
Publication year - 1976
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1976.03615995004000030028x
Subject(s) - usda soil taxonomy , soil water , panchromatic film , soil survey , soil map , altitude (triangle) , physical geography , pedology , taxonomy (biology) , legend , soil series , geography , aerial photography , geology , cartography , soil science , soil classification , archaeology , remote sensing , ecology , mathematics , biology , geometry , multispectral image
State‐wide panchromatic photography of Minnesota was obtained at a contact scale of 1:90,000 and used for compiling a series of generalized soil maps. The taxonomic legend used was developed from selected concepts in Soil Taxonomy, generally at the subgroup level. The mapping rate is about one township per day with maximum use of stereo‐interpretation. Maps are compiled on composites of the U.S. Geological Survey 1:250,000 quadrangles. A concept of geomorphic regions is used to identify and isolate distinctive parent materials and topography. About 75 such regions are delineated. A concept of soil landscape units (SLU) was developed for mineral soils. These are viewed as collections of soil bodies having broad similarity in particlesize class of the control section and of material below the control section; in position and duration of the water table; and in the presence or absence of a mollic epipedon. For areas of organic soils, a taxonomic legend using suborder concepts was developed.