Open AccessGrand Design for Merapi Irrigation Channel System Using Watershed and River Region Approaches based on Community Development in Yogyakarta, Indonesia
Author(s) -
Slamet Suprayogi,
Wikan Jaya Prihantarto,
Totok Gunawan,
Sigit Heru Murti,
Masrur Alatas
Publication year - 2022
Publication title -
asean journal on science and technology for development/asean journal on science and technology for development
Language(s) - English
Resource type - Journals
eISSN - 2224-9028
pISSN - 0217-5460
DOI - 10.29037/ajstd.740
Subject(s) - watershed , irrigation , channel (broadcasting) , water resource management , hydrology (agriculture) , resource (disambiguation) , geography , geographic information system , sustainability , environmental science , environmental resource management , remote sensing , engineering , computer science , telecommunications , ecology , computer network , geotechnical engineering , machine learning , biology
This paper proposes a grand design plan for Mataram Channel II, an irrigation channel system spanning from Turi to Cangkringan District in Yogyakarta, Indonesia. It is based on research aiming to assess the system’s feasibility from two aspects: geophysics using site selection approaches (watershed and river region) and community aspirations, analyze potential water resource availability to support its sustainability, and construct a grand design plan. Primary data acquired from IKONOS image interpretation were used to collect geophysical and field data for parameter mapping, and spatial data were modeled using Geographic Information System technology to determine paths, directions, and routes. Community aspirations were obtained by structured interviews with key informants and focus group discussions with community groups in village units. The results showed that, geophysically, the land carrying capacity allowed Krasak-Bedog rivers as permanent discharge of 123.78 m3/s of water, in line with community aspirations for higher irrigation water discharge in traversed districts. In total, 19 rivers and nine artificial retention in the channel system produced maximum discharges of 123.78 m3/s and 12 m3/s. Based on geophysical characteristics and community aspirations, the grand design plan included constructing 41km-long Mataram Channel II from Turi (specifically Wonokerto Village) at 500 msal to Cangkringan (Glagaharjo) at 450 masl.