Abstract

Searching for Historical Wetlands in the Ballona Watershed, Los Angeles
Track: Environmental Management
Authors: Shawna Dark, Danielle Bram

The extent of South Coast wetlands has been dramatically reduced over the past 150 years, and remaining wetlands are heavily altered. Decisions about design and prioritization of coastal wetland restoration should be informed by an understanding of historical wetland distribution. As a first step toward achieving this understanding, this study analyzed the patterns and distributions of historical wetlands within the Ballona watershed. Analysis was based on the application of GIS to develop a body of evidence using historical records ranging from maps to textual citations. Using a spatial synthesis approach, we were able to develop a discreet look into the past to develop an understanding of historical wetlands within the watershed. This presentation will provide insight into the power of GIS in understanding environmental history and human impact.