DPSIR1 model approach to address land-use changes in Deli Serdang District, North Sumatera Province

Abstract

Abstract Deli Serdang Regency is bordered by Medan City, Langkat, Karo, Simalungun, and Serdang Bedagai Districts, North Sumatra Province. This study aimed to analyze land-use changes during ten years period in Deli Serdang District. Land-use changes were spatially analyzed using Geographic Information System (GIS). The factors causing land-use changes, the Driving Force, Pressure, State, Impact and Response (DPSIR) models were used. The results showed that within an interval of ten years (2009-2019) there were land-use changes in Deli Serdang. The area of land use had increased, including: Mangrove forest (4,589.56 ha to 5,645.23 ha), industry (2,470.52 ha to 3,316.39 ha), open land (361.11 ha to 1,451.04 ha), Plantation (80,649.32 ha to 88,411.56 ha), settlement (21,596.50 ha to 23,581.43 ha) and shrubs (2,332.16 ha to 3,013.33 ha). The area of land use that were reduced include dryland forests, mixed gardens, cultivation, paddy fields and ponds. The increasing open land and industry, the reduction in the vegetation area, especially forests, are the important issues in climate change because forests acts as carbon absorber. Based on the DPSIR analysis, population increase is a trigger factor for land–use changes in Deli Serdang Regency.