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Tamworth/Sandwich subcommittee plans GIS co-occurrence mapping to identify high-priority lands
Summary
The Conservation Land Review Committee set a goal to use GIS co-occurrence mapping and simple scoring to prioritize land conservation across Tamworth and Sandwich, noting data limitations and planning a comparison of existing regional resources before deciding whether to adopt outside work or update local efforts.
The Conservation Land Review Committee updated its goal at the March 17 meeting to use GIS co-occurrence mapping to identify lands most critical for protection of natural resources and ecological services across Tamworth and Sandwich. The minutes record: "Use GIS mapping to identify lands most critical for protection of natural resources & ecological services." The committee emphasized keeping the approach simple and tailored to the two towns rather than attempting a broad regional effort.
Members discussed options for the next steps: adopt priorities from recent work by the Upper Saco Valley Land Trust (USVLT) or the Lakes Region Conservation Plan, update Tamworth's 2000s effort, or combine approaches. David Little noted data-quality issues: "some data layers are not very good: Tamworth & Sandwich conserved-land layers is missing parcels, and floodplain maps are not accurate." Nancy Walser and Dylan Alden will create a comparison table of co-occurrence layers and identified priorities; the committee discussed hiring a consultant later to compile and check data layers.
