Multiple and Integrated Water Resource Utilization
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This chapter discusses multiple and integrated water resource utilization in the Philippines. Multiple use can be provided by multipurpose water systems such as reservoirs for domestic water supply, irrigation, hydropower generation, and flood control function, including water quality control function. To discuss the status, issues and problems of multiple use water system, four systems in the Philippines are showcased, namely: the Angat and San Roque Reservoirs as well as the Laguna Lake and Agusan River systems. Being multiple use, some of these water resource systems may have competing or conflicting water uses due to differing socio-economic objectives (e.g., Laguna Lake and Angat Reservoir) and even due to the physical configuration of the components of the system (e.g., hydropower plants in the Angat Reservoir). On the other hand, complementary water use occurs such as the case of hydropower generation when the same irrigation or domestic water supply releases passes through hydropower plants such as in San Roque and Angat Reservoirs. At the end of this chapter, suggestions and recommendations for harmonizing or complementing multiple water resource utilization together with land use management are described in terms of policies and management strategies to achieve effective multiple and integrated water resource utilization.
KeywordsMultiple water use Integrated water resource use Complementary water use Reservoir River systems
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