A method to assess the relative environmental benefit of complementary measures: a scoping report and proof-of-concept

[摘要] The Murray-Darling Basin Authority (MDBA) has requested CSIRO to lead the development of a method, underpinned by a conceptual framework, for assessing the environmental effects (benefits and dis-benefits) of complementary measures (CMs) in supporting the achievement of the Basin Plan’s environmental outcomes. This interim report provides a preliminary framework for a method to assess the relative environmental benefits of CMs.The report addresses Tasks 3-5 in the Terms of Reference for this project. In brief, these tasks require the development of method that is capable of assessing the relative environmental benefits of CMs, with a focus on demonstrating feasibility rather than providing finished methods. Specifically, this requires a preliminary framework/conceptual models which outline how CMs influence the environmental objectives/outcomes of the Basin Plan (Task 3); a pilot study for assessing the benefit of fishways that demonstrates that the method is feasible (Task 4); and a report documenting progress towards Tasks 3 and 4 (Task 5). This report is intended to inform the MDBA of the status of the proposed method and the feasibility of the proposed approach, providing a basis for discussion. The method will be further refined in a more detailed report to be provided to the MDBA at the end of June 2017. The report details a framework for assessing the relative environmental benefits of CMs that meets the needs outlined in the Terms of Reference document. The proposed method has two, and possibly three, parts. The first part is a method to develop and document the knowledge base to support estimation of benefits associated with complementary measures. This consists of developing conceptual models that link CMs and environmental outcomes and documenting the strength of knowledge about the environmental benefits of CMs using a rapid evidence synthesis literature review. The second part is an expert-elicitation approach to estimate the relative environmental benefits of CMs across the Basin Plan themes of native fish, waterbirds, vegetation and connectivity. Benefits will be estimated using a cause-and-effect network approach. The third part (need yet to be confirmed) is the overarching framework to support the ranking process.

[发布日期] 2017-04-13 [发布机构] CSIRO

[效力级别] Freshwater Ecology [学科分类] 地球科学(综合)