Land Use Transformation Impacting Water Sustainbility in Indonesian Watershed Systems

Asikin Muchtar

doi:10.55927/fjst.v4i11.306

Authors

Asikin Muchtar Universitas Indonesia Timur

DOI:

https://doi.org/10.55927/fjst.v4i11.306

Keywords:

Land Use Transformation, Water Sustainability, Indonesian Watershed Systems

Abstract

This study analyzes how land-use transformation affects water sustainability in the Tallo watershed of Makassar City, South Sulawesi. Using a descriptive quantitative approach with multi-temporal Landsat imagery (2000–2024) and secondary hydrological data, the research examines changes in land cover and their relationship to water availability and quality. GIS and correlation analyses show a significant decline in vegetated areas and expansion of built-up land, which are associated with reduced infiltration, increased runoff, and higher levels of total suspended solids and biochemical oxygen demand. The findings indicate that uncontrolled land-use change has weakened the ecological resilience of the Tallo watershed and threatens urban water sustainability. The study highlights the need for integrated land and water management strategies that align spatial planning with watershed conservation to support sustainable urban development.

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