MORPHOMETRIC COMPARISON OF HAYDEN PRAIRIE AND ADJACENT CULTIVATED AREA

Abstract

Morphometric study of a virgin prairie area and adjacent cultivated farm land reveals no statistical difference in the slopes of the two areas. However, analysis by use of an elevation-percent area curve provides evidence that the landscape has been lowered about 0.132 feet in the last 100 years. Calculations of erosion rates using this curve are of the same order of magnitude as erosion rates calculated from sediment yield data. The erosion rates of individual basins are inversely proportional to the stream gradients in the basins. This observation is in accord with the equilibrium theory of drainage basin development and suggests that the erosion resistance of the glacial till varies between first order basins.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1966
Accession Number
AD0633120

Entities

People

  • Keith W. Anderson
  • R. A. Lohnes

Organizations

  • Iowa State University

Tags

Communities of Interest

  • Cyber

DTIC Thesaurus Topics

  • Analysis Of Variance
  • Civil Engineering
  • Commerce
  • Drainage Basins
  • Elevation
  • Engineering
  • Engineers
  • Erosion
  • Erosion Resistance
  • Maps
  • Measurement
  • Resistance
  • Sediments
  • Soil Surveys
  • Surveys
  • Topographic Maps
  • Valleys

Fields of Study

  • Geology

Readers

  • Coastal and Marine Engineering/Sediment Transport/Hydraulic Engineering
  • Mathematics or Statistics
  • Wetland-Land-Environmental Management.