Simulating the impact of climate and land cover changes on river discharge in the Maros watershed

Abstract

INRODUCTIONSince the 1980s, Mamminasata, which includes Makassar city, Maros Regency, Gowa Regency, and Takalar Regency, has transformed into a metropolitan area in Eastern Indonesia (Sulmiah et al., 2019).Makassar serves as the main growth hub (metropolitan core), with its influence extending to the surrounding regions.Maros Regency, as one of the buffer regencies (metropolitan periphery) in the Mamminasata area, contributed to the highest economic growth of the other regencies, with a primary economy of 25.33% (agricultural), a secondary economy of 20.15% (industrial management activities), and a tertiary economy of 54.50% (trade and provision of services) from 2015-2020(Yanuar et al., 2023)).This economic growth cannot be separated from the role of its natural landfill, namely, the Maros watershed, which functions as a critical ecological and economic support system, supplying water for domestic consumption, industrial operations, transportation infrastructure (National Strategic Project/PSN of the Makassar-Parepare Railway and Sultan

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