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Village irrigation systems (ViSs) are vital in rural livelihood, food, and water security. VISs include small (minor) tanks and diversions (anicuts). The hydrologically linked tanks with natural drainage patterns form cascades, and beyond food and water security, they play a significant role in mitigating flood and drought impacts on communities in river basins. With anthropogenic changes, many cascades are in depilated states now. This paper finds that policy support with legal recognition to cascade-based community-level institutions promote bottom-up water and natural resources management approaches. They also facilitate investigations of ill-defined subject areas in cascade management and complex socio-political and economic issues and challenges constraining sustainable cascade based VISs operations.
Mohamed Aheeyar, International Water Management Institute, Colombo, Sri Lanka Nilanthi Jayathilake, International Water Management Institute, Colombo, Sri Lanka Camelia Bucatariu, Food and Agricultural Organization of the United Nations, Rome, Italy Maren Reitemeier, International Water Management Institute, Colombo, Sri Lanka Ayomi Bandara, International Water Management Institute, Colombo, Sri Lanka Felix Thiel, International Water Management Institute, Colombo, Sri Lanka Pay Drechsel, International Water Management Institute, Colombo, Sri Lanka
Mapping stakeholders and their potential roles for prevention and reduction of food waste (FW) supports a coherent, coordinated and complementary approach to quantification, causes identification, and scaling up of feasible solutions for significant returns on investment. State and non-state stakeholders were mapped in selected municipalities: Colombo metropolitan area (Colombo, Sri Jayewardenepura-Kotte, Negombo, Kaduwela, and Moratuwa Municipal council areas), Jaffna, Kandy, Batticoloa, Kurunegala, and Galle. Stakeholders were grouped into four clusters: producers, enterprises/food business operators, private/public/civil society organizations, and households. The stakeholders’ maps guid...
This book presents recent findings from the South Asian region (SA), broadly including groundwater studies on (a) quantity, (b) exploration, (c) quality and pollution, (d) economics, management and policies, (e) groundwater and society, and (f) sustainable sources. It offers a compilation of compelling, authentic insights into groundwater scenarios throughout the water-stressed South Asia region. Comprising Afghanistan, Bangladesh, Bhutan, India, Myanmar, Nepal, Pakistan, and Sri Lanka, it is the most densely populated region in the world: It occupies approximately 4% of the global land area but supports more than 25% of the global population. The SA region now faces an acute shortage of fresh water due to a rapid rise in water demand and changes in societal water-use patterns. Combining essential advances and perspectives, this book offers a valuable resource for all scientists, planners and policymakers who are interested in understanding and developing the SA and other related areas.