Alfin Afridha Alfiana, 22314445 (2026) ANALISIS PERUBAHAN PENGGUNAAN AKIBAT ABRASI DI WILAYAH PESISIR LAUT JAWA STUDI KASUS: KECAMATAN SAYUNG, KABUPATEN DEMAK. Diploma thesis, Politeknik Agraria STPN.
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Abstract
The coastal area of Sayung Subdistrict, Demak Regency particularly Bedono, Timbulsloko, and Sriwulan Villages experiences intense coastal dynamics caused by abrasion, tidal flooding (rob), sea-level rise, and land subsidence. These conditions have reduced the land area, altered land-use functions, and produced areas indicated as vanished land. This study aims to analyze land-use change during the 2015–2025 period, to compare actual land use with the spatial-pattern directions of the Demak Regency Regional Spatial Plan (RTRW), and to assess the socio-economic conditions of the affected communities. This study employs a descriptive qualitative method with a spatial approach. Land-use data for 2015, 2020, and 2025 were obtained through remote-sensing image interpretation, analyzed for change, and overlaid with the RTRW spatial- pattern map to assess conformity, while shoreline comparison was used to confirm land dynamics. Socio-economic data were collected through interviews, observation, and document review, and then analyzed descriptively to explain the impact of coastal physical change on community livelihoods. The results show that the classified land-use area decreased from 1,761.84 ha in 2015 to 654.93 ha in 2025, a reduction of about 1,106.91 ha (62.8%) due to abrasion, tidal flooding, and permanent inundation. Fishponds, previously dominant (1,531.89 ha; 86.95%), experienced the largest net decline of 1,198.38 ha, whereas mangrove was the only class that consistently increased, reaching 153.73 ha (23.47%). The overlay analysis revealed very high non-conformity with the RTRW directions, about 99.0% in 2015, 97.7% in 2020, and 97.8% in 2025; the Industrial Allocation Zone was never actually dominated by industrial use, persisting instead as fishpond and mangrove areas. Socio-economically, the loss of fishpond land forced communities to shift from land-based primary sectors to informal and service sectors, accompanied by declining economic stability, changing settlement patterns, and weakening social cohesion, thus forming a feedback loop between physical degradation and socio-economic vulnerability. Keywords: land use, vanished land, coastal abrasion, tidal flooding, Regional Spatial Plan.
| Item Type: | Thesis (Diploma) |
|---|---|
| Subjects: | H Social Sciences > HD Industries. Land use. Labor > HD29 Pertanahan |
| Divisions: | Prodi Diploma IV Pertanahan |
| Depositing User: | yosep ka perpus |
| Date Deposited: | 08 Oct 2026 02:23 |
| Last Modified: | 08 Oct 2026 02:23 |
| URI: | http://repository.stpn.ac.id/id/eprint/5186 |
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