A systematic scoping review of the collaborative governance of environmental and cultural flows

This study systematically reviews English-language papers about the collaborative governance of environmental and cultural flows. With mixed-methods analyses, we illustrate that the determination of environmental flow needs is common, with authors in 42 countries across 112 watersheds describing their management. In contrast, cultural flows (characterized by attention to both ecological and non-ecological needs, decision-making authority of Indigenous Nations, and Indigenous rights) were reported only in papers by authors in commonwealth, colonial countries: Australia, Canada, and New Zealand. Evaluated against the Organisation for Economic Co-operation and Development's Water Governance Principles, we found that the literature reported efforts that considered appropriate local and regional scales, information and data, regulatory frameworks, and capacity building of communities and authorities engaged in environmental and cultural flow initiatives. However, there was limited consideration of the roles of communities in policymaking, which was more common in jurisdictions with decentralized governance. In jurisdictions with democratic community-based initiatives, environmental and cultural flows have not been approached in merely technical processes to communicate hydro-social-ecological information to decision-makers. Instead, the initiatives have created the context for evaluating new developments at the watershed level in light of communities' social and ecological water goals, collaborating during unique drought and flooding conditions, working to rebalance power in decision-making through water justice, creating ecological and Indigenous reserved water rights, granting legal personhood for rivers, and protecting water for the environment and dependent people in water markets. Going forward, we identify a need for greater attention to community roles in environmental and cultural flows protection in water governance, including policy creation and evaluation, regulatory initiatives, strategic planning, and impact assessments.