Watershed Conservation Auction 2D: Payments for Ecosystem Services

This is the 2D top-down companion to the 3D watershed PES auction simulator. Payments for Ecosystem Services schemes pay landowners to protect the natural capital their land provides — clean water, pollination, carbon storage — following the valuation logic laid out by the TEEB framework. This view focuses on the same cost-effectiveness reverse auction for a fixed watershed conservation budget: eighty-one upstream parcels, each with a private opportunity cost and a public water-quality service value that decays with distance from the river band at the top of the plot. Run the auction in targeted mode to enroll the cheapest, highest-value parcels first, or switch to random enrollment to see the same budget buy far less water-quality improvement. Drag to pan and scroll to zoom the grid.