Using backcast land-use change and groundwater travel-time models to generate land-use legacy maps for watershed management

Bryan Pijanowski, Deepak K. Ray, Anthony D. Kendall, Jonah M. Duckles, David W. Hyndman

Research output: Contribution to journalArticlepeer-review

35 Scopus citations

Abstract

We couple two spatial-temporal models, a backcast land-use change model and a groundwater flow model, to develop what we call "land-use legacy maps." We quantify how a land-use legacy map, created from maps of past land use and groundwater travel times, differs from a current land-use map. We show how these map differences can affect land-use planning and watershed management decisions at a variety of spatial and temporal scales. Our approach demonstrates that land-use legacy maps provide a more accurate representation of the linkage between land use/cover and current water quality compared to the current land-use map. We believe that the historical signatures of land-use impacts on current water quality should be considered in land-use planning and watershed management.

Original languageEnglish (US)
Article number25
JournalEcology and Society
Volume12
Issue number2
DOIs
StatePublished - 2007
Externally publishedYes

Keywords

  • Backcast land change model
  • Groundwater travel times
  • Land use
  • Legacy maps

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