Como o Sri Lanka Transformou a Zona Mais Seca em Celeiro Nacional com 18 Mil Reservatórios
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There's a fascinating contradiction in Sri Lanka that defies all logic: the driest part of this small Asian island feeds almost the entire population, while the rainiest area fails to do the same. How is this possible?
Sri Lanka, a country smaller than Ireland but with 22 million inhabitants (more than three times the Irish population), hides one of the most impressive hydraulic engineering secrets in human history. In two-thirds of the island, in the Anuradhapura and Polonnaruwa regions, rain falls only during two short periods of the year. For months, the soil hardens and the streams are reduced to sand. These are the driest, hottest, and least generous lands in the country.
However, it is precisely this dry zone that produces most of the rice that feeds the entire nation.
The answer becomes visible when observing the landscape from the air: the dry zone is dotted with hundreds of bodies of water. Some the size of a football field, others the size of a small inland sea. They look like natural lakes, but they are not. None of them. Sri Lanka has approximately 18,000 artificial reservoirs, the highest density of water storage tanks on the planet in proportion to its land area. On average, there are approximately 230 hectares of stored water for every 100 square kilometers of land. Ten thousand of these reservoirs continue to be used daily by farmers.
The most impressive thing? Fifteen thousand of these reservoirs were excavated before the year 1300. We are talking about a millennia-old hydraulic infrastructure that remains functional to this day.
This video explores the mystery of this ancient engineering: where does all this water come from in the driest part of the island? Who built this extraordinary system? How did the ancient Sinhalese engineers manage to create such an efficient irrigation network that transforms desert into a granary?
We will discover how an ancient civilization mastered water management so masterfully that it still feeds millions of people today, transforming arid lands into productive rice fields through hydraulic knowledge passed down through centuries.
A story of human ingenuity, long-term planning, and harmony with natural cycles that deserves to be known.
Como o Sri Lanka Transformou a Zona Mais Seca em Celeiro Nacional com 18 Mil Reservatórios
Mundo no Mapa
94 views
There's a fascinating contradiction in Sri Lanka that defies all logic: the driest part of this small Asian island feeds almost the entire population, while the rainiest area fails to do the same. How is this possible?
Sri Lanka, a country smaller than Ireland but with 22 million inhabitants (more than three times the Irish population), hides one of the most impressive hydraulic engineering secrets in human history. In two-thirds of the island, in the Anuradhapura and Polonnaruwa regions, rain falls only during two short periods of the year. For months, the soil hardens and the streams are reduced to sand. These are the driest, hottest, and least generous lands in the country.
However, it is precisely this dry zone that produces most of the rice that feeds the entire nation.
The answer becomes visible when observing the landscape from the air: the dry zone is dotted with hundreds of bodies of water. Some the size of a football field, others the size of a small inland sea. They look like natural lakes, but they are not. None of them. Sri Lanka has approximately 18,000 artificial reservoirs, the highest density of water storage tanks on the planet in proportion to its land area. On average, there are approximately 230 hectares of stored water for every 100 square kilometers of land. Ten thousand of these reservoirs continue to be used daily by farmers.
The most impressive thing? Fifteen thousand of these reservoirs were excavated before the year 1300. We are talking about a millennia-old hydraulic infrastructure that remains functional to this day.
This video explores the mystery of this ancient engineering: where does all this water come from in the driest part of the island? Who built this extraordinary system? How did the ancient Sinhalese engineers manage to create such an efficient irrigation network that transforms desert into a granary?
We will discover how an ancient civilization mastered water management so masterfully that it still feeds millions of people today, transforming arid lands into productive rice fields through hydraulic knowledge passed down through centuries.
A story of human ingenuity, long-term planning, and harmony with natural cycles that deserves to be known.