HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Smart, M. M. Articles by Sebaugh, J. L. Search for Related Content PubMed Articles by Smart, M. M. Articles by Sebaugh, J. L. Agricola Articles by Smart, M. M. Articles by Sebaugh, J. L.

Stream-Watershed Relations in the Missouri Ozark Plateau Province¹

ABSTRACT

Water chemistry and algal chlorophyll values in Missouri Ozark streams were more strongly related to land-use practices on the watershed than bedrock geology or soil association. In general, concentrations of nutrients, chlorophyll, and most major ions were lowest in streams draining forests, intermediate in streams draining pastures, and highest in streams draining urban areas. In streams draining both forest and pasture areas, there was an exponential increase in the concentration of total P, total N, NO₃^–-N, Na⁺, Cl^–, and suspended chlorophyll a with an increase in percent pasture area on the watershed. These relations help identify the relative importance of land use on water chemistry and algal chlorophyll values, explain differences among streams in the region and enable us to approximate the impact of forest-pasture conversion on streams not yet affected.

Key Words: land use • water chemistry • algal chlorophyll

¹ Contribution from the Missouri Agric. Exp. Stn. Journal Series no. 8646, Univ. of Missouri, Columbia, MO 65211. This research was supported by the Missouri Water Resour. Res. Center, Dep. of the Interior (Project no. A-111, MO), Missouri Agric. Exp. Stn. (Project no. 175), the Missouri Dep. of Conserv. and the Missouri Coop. Fishery Res. Unit.

² Graduate research assistant, professor of fisheries and wildlife, and statistician, Agric. Exp. Stn., Univ. of Missouri, Columbia, respectiely. Current address of senior author is River Studies Center, Cowley Hall, Univ. of Wisconsin, La Crosse, WI 54601. Current address of last author is Statistical Reporting Service, USDA, Federal Building, Columbia, MO 65201.

Received for publication August 1, 1983.