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Hydrology Balance in Sustainable Land Development

Authors
  • Rasyidin, A
Type
Published Article
Journal
IOP Conference Series Earth and Environmental Science
Publisher
IOP Publishing
Publication Date
Mar 01, 2024
Volume
1306
Issue
1
Identifiers
DOI: 10.1088/1755-1315/1306/1/012019
Source
ioppublishing
Keywords
Disciplines
  • Paper
License
Unknown

Abstract

Several cities in West Sumatra are in an alluvial system formation even though they are at an altitude above 350 m msl, for example, Kota Solok 350 m, Bukittinggi 900 m, and Padang 25 m msl. The growth of this city was initially safe from floods, but lately, it has often experienced flood disasters or disturbed the hydrological balance. This is presumably due to changes in land use. The city of Solok has lost 385 ha of rice fields so far, the city of Padang has lost 35 ha of rice fields/year, and Bukittinggi has lost nearly 200 ha of its total rice field area. When there is a land use change to a settlement, the amount of water required during rice cultivation becomes water that has to be disposed of, and this should affect the expansion of the drainage channel. If the water requirement for one growing season is at a value of 1,300 mm, with a length of time from soil processing to harvesting is 4 months, meaning that every month the rice fields need water as much as 1,251,250 m3, which is equivalent to 0.48m3/sec.

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