Chianan Irrigation
system of irrigation from Chinian Plain, Taiwan
Chianan Irrigation (Chinese and Japanese: 嘉南大圳; pinyin: Jianán Dàzùn; rōmaji: Kanan Taishū; lit. 'Chianan Great Ditch'), also known as the Kanan Irrigation System, was built to support agricultural production in the Chianan Plain of Taiwan. The name "chia-nan" was derived from two place names within its surrounding area called Chiayi and Tainan. Although it includes some other facilities, such as the Wusanto Reservoir, the term "Chianan Canal", in a narrow sense, would only mean the canals of this system.
The main designer of the Chianan Canal is Yoichi Hatta, a civil engineer of the Japanese government. Its main streams pass through today's Tainan, Chiayi and Yunlin, formerly parts of Tainan Prefecture. The architectural work of canal was launched in 1920 and completed in 1930, during Japanese rule. The canal improved the plantable area for rice from 5000 to 150,000 hectares, and made the rice crops in its irrigated area able to be harvested three times annually.
In 2009 it was listed as a potential World Heritage Site.
The public source identifies “Chianan Irrigation” as system of irrigation from Chinian Plain, Taiwan. This brief keeps that definition visible, then builds a research path around Chianan, Irrigation and system.
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Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Jun 28, 2026. The linked authority identifier is Q31069. Authority coordinates are 23.596, 120.359. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1920, 1930 and 2009.
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This entry incorporates text from “Chianan Irrigation” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.