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ESValue-SWF Valuing Ecosystem Services on Public Lands in Southwest Florida

ESValue-SWF Valuing Ecosystem Services on Public Lands in Southwest Florida. Project Scope. Develop a valuation framework for the Ecosystem Services provided by District land: Use available GIS data Develop screening-level estimate of value Consider baseline and alternative land uses

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ESValue-SWF Valuing Ecosystem Services on Public Lands in Southwest Florida

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  1. ESValue-SWFValuing Ecosystem Services on Public Lands in Southwest Florida

  2. Project Scope • Develop a valuation framework for the Ecosystem Services provided by District land: • Use available GIS data • Develop screening-level estimate of value • Consider baseline and alternative land uses • Develop estimates according to four mission areas

  3. ESValue-SWF Basic Framework Land Values Group 2 Human Use Group 3 Revenue Producing Group 4 Economic Impact Group 1 Core Mission Group 1 Core Mission Water Supply Water Quality Flood Protection Natural Systems Group 2 Human Use Group 4 Economic Impact Group 3 Revenue Producing Jobs Output Taxes (Indirect) Timber Recreation Cattle Leases Special Events Tax Revenue Direct Hunting Property value is a composite good

  4. Ecosystem Services Valuation Approach • Ecological structure and function • Soil type • Recharge • Nutrient cycling • Water storage Baseline level of services and benefit provided • Land conversion scenarios • None • Agriculture • Residential Change in service and value with and without District regulations Identify land uses and ecosystem types • Geographic attributes • Proximity to receiving waters • Adjacent land uses

  5. Quantity – Production Function • Applied to ¾ core mission areas • Water supply • Water quality • Flood control • SCS curve method to compute rainfall excess and potential runoff • Water Quality – changes in nutrient concentration and mass load • Water Supply – changes in infiltration and recharge • Flood control – changes in peak flow and associated costs Image credit: The Economist. 2005. "Rescuing Environmentalism." http://www.economist.com/node/3888006?story_id=3888006.

  6. Price – Economic Value Function Replacement cost or avoided cost Replace baseline value with structural/engineered solution Water quality – Cost of BMPs and untreated nutrients Water supply – replacement costs for water supply development Flood control – cost of storage to match pre- and post-hydrology Image credit. Clever Green. 2011. "Water Tariff Soars by 38%." http://www.clevergreen.co.za/2011/05/25/water-tariff-soars-by-38/.

  7. Natural Systems • Non-priced services: • Biodiversity • Unique natural communities • Landscape connectivity Images. 1.) National Forest Foundation. "Longleaf Pine Forest." http://www.nationalforests.org/conserve/programs/conservation/ocala; 2.) The Resilient Earth.com "The Endangered Florida Panther." http://www.theresilientearth.com/?q=content/biodiversity; 3.) Summit County Citizen’s Voice. “A Young Alligator floats in the Myakka river estuary in southwest Florida.” http://summitcountyvoice.com/2011/06/25/biodiversity-gators-a-key-link-between-between-ecoystems.

  8. Tradeoff Analysis - Example Which Property Will Best Meet the District's Core Objectives ? B is Better than A A is Much Better than B A is Better than B B is Much Better than A Neither

  9. Preliminary Results

  10. Input

  11. Output

  12. Next Steps • Develop pilot application • Uncertainty and Sensitivity • Are more complex production functions warranted?

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