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  2. Tank cascade system - Wikipedia

    en.wikipedia.org/wiki/Tank_cascade_system

    Rain clouds over a tank in Sri Lanka The tank cascade system ( Sinhala : එල්ලංගාව , romanized: ellaṅgāva ) is an ancient irrigation system spanning the island of Sri Lanka . It is a network of thousands of small irrigation tanks ( Sinhala : වැව , romanized: wewa ) draining to large reservoirs that store rainwater and ...

  3. Irrigation tank - Wikipedia

    en.wikipedia.org/wiki/Irrigation_tank

    In countries like Sri Lanka and India they are part of historic methods of harvesting and preserving rainwater, critical in regions without perennial water resources. A tank is often an earthen bund (embankment or levee) constructed across a long slope to collect and store surface water from the above catchment and by taking advantage of local ...

  4. Sri Lankan irrigation network - Wikipedia

    en.wikipedia.org/wiki/Sri_Lankan_irrigation_network

    The earliest examples of irrigation works in Sri Lanka date from about 430 BCE, during the reign of King Pandukabhaya, and were under continuous development for the next thousand years. In addition to constructing underground canals , the Sinhalese were the first to build completely artificial reservoirs to store water , referred to as tanks ...

  5. Rainwater harvesting - Wikipedia

    en.wikipedia.org/wiki/Rainwater_harvesting

    configuration of domestic rainwater harvesting system in Uganda. [1]Rainwater harvesting (RWH) is the collection and storage of rain, rather than allowing it to run off.. Rainwater is collected from a roof-like surface and redirected to a tank, cistern, deep pit (well, shaft, or borehole), aquifer, or a reservoir with percolation, so that it seeps down and restores the ground w

  6. Iranamadu Tank - Wikipedia

    en.wikipedia.org/wiki/Iranamadu_Tank

    In 1902 the Director of Irrigation H. T. S. Ward came up with proposals for building a new irrigation tank on the Kanakarayan Aru in northern Ceylon. [4] Work in the tank, which had a catchment area of 227 sq mi (588 km 2) and was to hold 26 ft (8 m) [a] of water, began in July 1902 [b] but was delayed by the World War I.

  7. Irrigation - Wikipedia

    en.wikipedia.org/wiki/Irrigation

    While floodwater harvesting belongs to the accepted irrigation methods, rainwater harvesting is usually not considered as a form of irrigation. Rainwater harvesting is the collection of runoff water from roofs or unused land and the concentration of this.

  8. Sri Lanka lowland rain forests - Wikipedia

    en.wikipedia.org/wiki/Sri_Lanka_lowland_rain_forests

    The lowland rain forests accounts for 2.14 percent of Sri Lanka's land area. [3] This ecoregion is the home of the jungle shrew, a small endemic mammal of Sri Lanka. [4] Sri Lanka has the highest density of amphibian species worldwide. [2] Many of these, including 250 species of tree frogs, live in these rain forests.

  9. Ministry of Irrigation and Water Resources Management

    en.wikipedia.org/wiki/Ministry_of_Irrigation_and...

    Sri Lanka Freedom Party: 22 March 2015 – 12 August 2020 Ministry of Irrigation and Water Resources Management Chamal Rajapaksa: Sri Lanka Podujana Peramuna: 12 August 2020 - Gotabaya Rajapaksa: Ministry of Irrigation Roshan Ranasinghe: Sri Lanka Podujana Peramuna: 23 May 2022 - Present: Gotabaya Rajapaksa: Ministry of Irrigation