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Presentations & Videos about EAP

Early outcomes of ‘Ecological Accounting Process’ showcased at Blue Ecology Workshop (November 2017) – “This unique approach accounts for the ecological services made possible by watershed hydrology,” said Tim Pringle, EAP Chair


“Initially, we saw EAP as a tool (i.e. ‘the protocol’) that would help practitioners calculate the opportunity cost of balancing ecological services with drainage infrastructure. However, our thinking has evolved over the past year. Testing the approach through two demonstration applications has resulted in this defining conclusion: EAP is a process, not a protocol. Thus, we are rebranding EAP as the Ecological Accounting Process,” stated Tim Pringle.

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“The Ecological Accounting Protocol is the lynch-pin for achieving Sustainable Watershed Systems through a whole-system, water balance approach,” stated Kim Stephens at a meeting of Metro Vancouver’s Stormwater Interagency Liaison Group (Nov 2016)


“The emphasis in using the Ecological Accounting Protocol (EAP) would be on adaptive management design, rather than a prescriptive approach,” stated Kim Stephens. “The essence of EAP is that ‘Optimum Infrastructure Design = Watershed Health’. Optimum implies preserving hydrologic integrity plus achieving best opportunity-cost outcomes in the long-term. The watershed defines what goes into EAP.”

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ECOLOGICAL ACCOUNTING PROTOCOL: “To protect watershed health, engineered infrastructure ought to fit into natural systems, rather than the other way around,” stated Tim Pringle at the FLOWnGROW workshop (Nov 2016)


The Protocol is an economic tool to make real the notion of ‘watersheds as infrastructure assets’. “There are some philosophical principles that guide us,” stated Tim Pringle. “Foremost is that water is an ecosystem. It supports all of the living ecology that we treasure. The other principle is that we know that practitioners have knowledge and ability to do things on the ground in a more successful, sustainable way than we often see.”

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