Economic aspects

This guide illustrates the potential for using valuation as a tool for diversifying the funding structure for protected areas and for providing information about stakeholders which is crucial for effective management.

The Pangani River Basin covers an area of about 43,650 km2, mostly in Tanzania with approximately 5% in Kenya. The Basin contains a wide array of resources of which water and arable land are arguably the most important to its 3.7 million Tanzanian inhabitants. There is a diversity of interests in the Basin, and these are able to wield various degrees of power as they seek to lay claim to its resources.

This book tells the story of times past, when wetlands were considered as wastelands and decision makers and managers were unaware of their benefits, a time when the adverse impacts of hydropower and irrigation schemes on ecosystems and people downstream seemed unimportant. Today wetland ecosystems are viewed as essential elements in integrated river basin planning, which draws upon the most appropriate modern science and traditional knowledge.

An environmental flow is the water regime provided within a river, wetland or coastal zone to maintain ecosystems and their benefits where there are competing water uses and where flows are regulated. Pioneering efforts in South Africa, Australia and the United States have shown that the process to establish them poses great challenges.