Identifying Issues in the Katingan I Swamp Irrigation Area Through Field Survey and Monitoring ApproachesSiswoyo Hadi, Endita Prima Ari Pratiwi and Budi Santoso WignyosukartoE3S Web of Conf., 517 (2024) 04005DOI: https://doi.org/10.1051/e3sconf/202451704005