Analysis of Coastal Environmental Dynamic Using the DPSIR Framework (Driving Force, Pressures, State, Impacts, and Responses) in Subang Regency, West Java, Indonesia
DOI:
https://doi.org/10.64137/3108088X/IJAES-V2I3P105Keywords:
DPSIR, Coastal, Environmental, Dynamics, Mangrove, Shoreline Change, Erosion, AccretionAbstract
The coastal area of Subang Regency is an ecologically and economically important region, yet it is simultaneously exposed to pressures arising from land-use change, pond development, mangrove degradation, coastal development, and shoreline dynamics. This study aims to analyse the coastal environmental dynamics of Subang Regency using the Drivers, Pressures, State, Impacts, Responses (DPSIR) framework based on secondary data. The data were obtained from the Geospatial Information Agency (BIG), scientific journals, and official government reports. The data were analysed using a descriptive-spatial approach by grouping information into the five DPSIR components. Drivers include changes in spatial utilisation and socio-economic activities, while pressures comprise land-use change, mangrove conversion, pond development, and coastal development. State is represented by mangrove conditions and shoreline dynamics, whereas impacts include coastal erosion, land loss, tidal flooding, and declining coastal ecological functions. Responses include mangrove rehabilitation, silvofishery, coastal protection, and spatial management. The results indicate that coastal changes in Subang are spatially heterogeneous. Previous studies reported shoreline changes of 8.17 km during 1988–2013, with the highest sedimentation occurring in Pusakanagara and Blanakan and the highest erosion in Legonkulon. More recent research has also documented extreme dynamics in Pusakanagara, with a maximum accretion rate of 123.49 m/year and a maximum erosion rate of 126.84 m/year. Meanwhile, the mangrove area reportedly declined from 639 ha in 1992 to 261 ha in 2025. These findings indicate that coastal problems in Subang result from interactions between anthropogenic pressures and natural processes. Therefore, management requires a spatial approach that takes into account the characteristics of individual coastal segments.
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