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Keeping rivers healthy in an era of climate change

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Information about Keeping rivers healthy in an era of climate change
Business & Mgmt

Published on January 21, 2014

Author: IWMI_Media

Source: slideshare.net

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by Nishadi Eriyagama
January 17, 2014
Colombo, Sri Lanka
International Water Management Institute (IWMI)
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Keeping rivers healthy in an era of climate change Photo: Sanjini de Silva/IWMI Nishadi Eriyagama January 17, 2014 Colombo, Sri Lanka A water-secure world www.iwmi.org

Observed climatic changes Temperature Rainfall Highest temperature increase in agricultural areas Change in distribution of annual rainfall Northeast monsoon: reduced and variability increased (Maha) Dry Zone Anuradhapura Badulla Southwest monsoon: Stable (Yala) Source: Zubair et al. 2005 A water-secure world www.iwmi.org Wet Zone Intermediate Zone

Climate change vulnerability ‘hot spots’ Vulnerability index Highly vulnerable areas are: • • Anuradhapura Nuwara Eliya Primary food-producing areas - rely heavily on water availability for agriculture Mapping method developed by IWMI shared with partners and used to create the Sri Lanka National Climate Change Adaptation Strategy 2011-2016 • Currently studying how best to use the ancient tank system to adapt to climate change • Providing capacity building and expert advice to the Ministry of Environment and Renewable Energy Ratnapura A water-secure world www.iwmi.org

Climate change will affect our rivers The Sri Lanka Environmental Flow Calculator (SLEFC) is a software package to estimate how much water should be left in rivers to ensure they remain healthy This methodology is being used by the Dam Safety and Water Resources Planning Project (DSWRPP) in the National Water Resources Master Plan and the Mahaweli and Mundeni Aru Basin development plans A water-secure world www.iwmi.org

For a climate resilient Sri Lanka ස ස ස ස ස ස ස ස Thank you A water-secure world www.iwmi.org

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