Modernization of Irrigation
- Modern irrigation schemes have largely replaced the traditional tank-based systems.
- These modern schemes feature centralized management and are highly productive, efficiently meeting the demands of growing populations and economic growth.
- However, they are optimized and vulnerable to failure when faced with changes in climate and ecosystem conditions.
- In the pursuit of productivity, these systems have often resulted in the loss of social harmony, the coexistence of humans and nature, and system resilience.
- A notable example highlighting the contrast between modern and ancient systems is the approach taken in irrigation feeder canals.
Feeder Canals the modern and the ancient
A comparison between a recent feeder canal (top) and an ancient feeder canal (bottom) reveals distinct differences. The recent construction features a higher velocity and is accompanied by elevated embankments, creating isolation from intermediate runoff. In contrast, the ancient canal follows the natural contours, with an embankment only on the lower side, allowing it to effectively capture intermediate inflow.
