Sanjiv de Silva
International Water Management Institute
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Featured researches published by Sanjiv de Silva.
International Journal of Sustainable Development and World Ecology | 2011
Sonali Senaratna Sellamuttu; Sanjiv de Silva; Sophie Nguyen-Khoa
It is well known that whilst wetlands deliver a wide range of services vital for human well-being, they are being rapidly degraded and lost. Losses tend to be higher where human populations are increasing most and demands for economic development are greatest. Multidisciplinary management approaches that integrate conservation and development objectives in wetlands are therefore urgently requested for by the Ramsar Convention on Wetlands. This paper describes the evaluation of 10 wetland management case studies from Asia, Africa and South America that adopted such an integrated approach. The evaluation assessed the outcomes of these integrated initiatives to identify conditions and processes for linking conservation and poverty reduction objectives in wetlands. The findings are also compared with other assessments of integrated approaches, particularly in terms of their effectiveness in optimizing conservation and poverty reduction outcomes. The results from our studies suggest an ongoing evolution of such integrated interventions, which also implies cycles of learning from past mistakes. Overall, our results highlight the significant variation between wetlands in types and quantities of services they provide and emphasize the need to view many ecological issues as social challenges for equitable solutions to both wetlands and people. The analysis further shows that the positive on-ground results owe much to the interdisciplinary problem analysis, whereby interventions can move from treating symptoms to addressing root causes. while no blueprint emerged on how to successfully integrate conservation and poverty reduction in wetlands, important lessons for future interventions were drawn.
Journal of International Wildlife Law & Policy | 2012
Sonali Senaratna Sellamuttu; Sanjiv de Silva; Nidhi Nagabhatla; C. Max Finlayson; Chiranjibi Pattanaik; Narendra Prasad
The Ramsar Conventions Wise Use Concept in Theory and Practice: An Inter-Disciplinary Investigation of Practice in Kolleru Lake, India Sonali Senaratna Sellamuttu a , Sanjiv de Silva b , Nidhi Nagabhatla c , C. Max Finlayson d , Chiranjibi Pattanaik e & Narendra Prasad e a International Water Management Institute (IWMI) b Institutional and Policy Analysis, International Water Management Institute (IWMI) c APEC Climate Centre d Institute for Land, Water and Society, Charles Sturt University e Salim Ali Centre for Ornithology and Natural History (SACON)
Archive | 2018
Sanjiv de Silva; Mohamed Aheeyar; Indika Arulingam; Herath Manthrithilake
Overall high annual precipitation in Sri Lanka belies significant spatial and temporal variation in surface water availability. The ‘dry zone’ comprising two-third of Sri Lanka’s land area receives significantly less rainfall and has high precipitation rates and a five-month dry season. Nevertheless, these regions account for the majority of rice production, the staple crop, thanks largely to the ancient hydraulic civilization based on networks of rainwater harvesting (irrigation) tanks. This manipulation of surface water resources including modern surface irrigation schemes continues to form the backbone of dry zone farming. Groundwater irrigation has remained in the shadows except in the North where surface flows are absent. This scenario is now changing as population growth; poorly maintained infrastructure; commercial agriculture; sectoral competition for water and climate change combine to exert severe pressure on surface water resources. Since the dry zone is also home to a large number of Sri Lanka’s poor households, and a close association exists between high poverty clusters and access to irrigation, the implications of water insecurity for a range of poverty indicators are clear. Not surprisingly, these pressures have prompted an increasing recourse to groundwater in several parts of the dry zone, as governments and farmers recognize the imperative to increase agriculture output, promote crop diversification, and improve agrarian incomes. Yet, with limited groundwater potential, limited detailed knowledge of this resource, and under-developed groundwater-oriented institutions, it is far from certain whether future groundwater exploitation can steer away from anarchy.
Natural Resources Forum | 2011
Jonathan Lautze; Sanjiv de Silva; Mark Giordano; Luke Sanford
Research Report. International Water Management Institute | 2010
Matthew P. McCartney; Lisa-Maria Rebelo; Sonali Senaratna Sellamuttu; Sanjiv de Silva
IWMI Books, Reports | 2014
Matthew P. McCartney; Max Finlayson; Sanjiv de Silva; Priyanie H. Amerasinghe; Vladimir U. Smakhtin
IWMI Books, Reports | 2013
Sanjiv de Silva; Robyn Johnston; Sonali Senaratna Sellamuttu
Journal of International Wildlife Law & Policy | 2011
Matthew P. McCartney; Lisa-Maria Rebelo; Everisto Mapedza; Sanjiv de Silva; C. Max Finlayson
Archive | 2014
Matthew P. McCartney; Colin Finlayson; Sanjiv de Silva; Priyanie H. Amerasinghe; Vladimir U. Smakhtin
Archive | 2013
Sanjiv de Silva; Robyn Johnston; T. Try