The presentation discussed the objectives of ancient water management in Sri Lanka as:
1. Irrigation for food production
2. Human needs (settlement, drinking water, bathing, domestic needs etc.)
3. Rainwater harvesting systems
4. Environmental existence (flora, fauna etc.)
5. Building cities (Anuradhapura, Sigiriya etc.)
6. Urban planning
7. Basis for administrative boundaries
8. Mitigation of natural disasters (drought, flood, cyclone, epidemics etc.)
40. VARIATION OF RAINFALL AND IRRIGATION USE
WITH CULTIVATION TIME
0
200
400
600
800
1000
1200
OCTOBER NOVEMBER DECEMBER JANUARY
MONTH
WATER
USE
(MM)
Irrigation requirement
Rainfall use
51. Sri Lanka has a recorded history since 543 B.C. Although records are not
found of civilizations before 543 B.C., historical facts reveal that a
civilization existed even long before from Rawana Times.
It's believed that an Expelled prince Vijaya to be the first Aryan King of
Sri Lanka. Since then many Kings Ruled Sri Lanka Till 1815.