RBMA Block 4: Circular and Ecosystem-Based Planning

4.2 – Building with Nature in River Basin

Understanding natural mechanism and Welang river dynamics. Some lessons learned from the lecture:

• Rivers seek an equilibrium: rivers become unstable if you change a parameter
• Restoring balance, therefore, requires a good understanding of river dynamics, sedimentation and erosion processes
• Good monitoring after completion of works is required as the river may continue to be unstable and additional works may be necessary
• Bringing down flood levels is safer than building dikes
• Upstream is about retaining water, while downstream is about draining water

Part 1

Part 2

Part 3

Part 4

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