Prescribed fire effects on erosion parameters in a perennial grassland

M. E. O'Dea, D. Phillip Guertin

Research output: Contribution to journalArticle

17 Scopus citations

Abstract

A 2-year field experiment was undertaken to quantify the interacting effects of a late-spring prescribed burn and summer rainfall on seasonal runoff and erosion in a southern Arizona grassland. Six blocks with walled subplots (n = 24) were installed on a hillslope to measure changes to plant, soil, and hydrologic variables in response to treatments. Increased bulk density, erosion, and runoff volumes; and lowered plant cover and water intake rates were observed within the burned plots following the first summer season. In the second year, higher bulk density, runoff volumes, and erosion measures were again observed within the burned plots, as well as lower plant cover, aggregate stability, and water intake rates. The results of this study indicate that following late-spring burning, semi-desert grasslands are susceptible to greater summer runoff and erosion compared to unburned grasslands.

Original languageEnglish (US)
Pages (from-to)27-32
Number of pages6
JournalJournal of Range Management
Volume56
Issue number1
DOIs
StatePublished - Jan 2003

Keywords

  • Arizona
  • Sediment yield
  • Summer rainfall

ASJC Scopus subject areas

  • Ecology
  • Animal Science and Zoology

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