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Asia-Pacific Network for Global Change Research

Asia-Pacific Network for Global Change Research

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Project final report: CRRP2018-01MY-Shrestha

Groundwater is ideally depicted as world’s real hidden treasure, and it constitute 94% of the freshwater resources. Groundwater is the most desirable source of water supply, and it is less vulnerable to quality degradation and drought than surface water. Groundwater plays an important role in the sustainable development of major cities in Asia (Bangkok and its vicinity, Ho Chi Minh City, Lahore, and Kathmandu Valley). Importance of groundwater for the city’s water supply will probably intensify under climate change and human development (population growth, urbanization) in the future. Therefore, it is imperative to assess the resiliency of groundwater under climate change and human development for strategic planning and management of water resources in urban areas. Mapping groundwater resilience to climate change and human development in Asian cities can be the efficient tools to analyse the area where the preventive measures are urgent and to understand the behaviour of groundwater system which ultimately helps in the management and protection of groundwater resources as
well as to develop strategies for sustainable use. This study focusses on analysing the impact of climate change and human development (land-use change, population growth, change in abstraction) on groundwater resources and accessing the groundwater resiliency of Asian cities. This project first aims to develop robust framework to access the resiliency of groundwater system. The framework was developed using several parameters of resiliency. Then the framework was applied in four Asian cities (Bangkok and its vicinity, Ho Chi Minh City, Lahore, and Kathmandu Valley) to assess the resiliency of groundwater to climate change and human development.