Study of Agricultural Land-Use Change in Nagari Harau, Harau Subdistrict, Lima Puluh Kota Regency, West Sumatra
DOI:
https://doi.org/10.25077/jijcs.v8i3.248Keywords:
Agricultural Conversion, Dryland Expansion, Ecosystem sustainability, GIS, West SumatraAbstract
Land-use change in rural agricultural landscapes represents a critical challenge for environmental sustainability and food security, particularly in areas experiencing tourism-driven development. This study aims to analyze the spatial and temporal dynamics of agricultural land-use change in Nagari Harau, Harau Subdistrict, Lima Puluh Kota Regency, West Sumatra, Indonesia, during the 2014–2024 period. A descriptive quantitative approach was applied using remote sensing and Geographic Information Systems (GIS). Multi-temporal Sentinel-2 imagery was interpreted and analyzed using ArcGIS, Google Earth Engine, and supporting spatial datasets. Land Change Rate (LCR) analysis was employed to quantify annual conversion trends. The results indicate a significant structural transformation of land use. Forest area declined by 11.81% (−1.18% per year), while paddy fields decreased by 10.55% (−1.05% per year), suggesting gradual but persistent conversion. In contrast, dry fields expanded sharply by 1,788.64% (+178.86% per year), accompanied by a 304.07% increase in shrubland (+30.47% per year). Settlement expansion was relatively minor (3.27%), indicating that agricultural restructuring rather than urbanization was the dominant driver of land transformation. The observed pattern reflects a transition from irrigated rice systems toward dryland agriculture and transitional land cover, influenced by biophysical constraints, irrigation limitations, market orientation, and spatial planning implementation challenges. These changes have important ecological implications, including increased erosion risk, altered hydrological regulation, and potential threats to long-term food production sustainability. The findings highlight the need for spatially explicit land management strategies to balance agricultural productivity, ecosystem stability, and tourism development in rural landscapes.
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