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All Journal Journal of Degraded and Mining Lands Management Jurnal Linears Jurnal Peweka Tadulako JURNAL SAINS GEOGRAFI Jurnal Geosaintek
Sakti, Harry Hardian
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Engineering Environmental Science

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Analisis Spasial Daya Dukung Lahan Permukiman Di Kota Sentani Sakti, Harry Hardian; Despry Nur Annisa Ahmad; Nurul Wahyuni; Farhan Aldiansyah
Jurnal Sains Geografi Vol 3 No 1 (2025): JURNAL SAINS GEOGRAFI
Publisher : Fakultas Ilmu Sosial dan Hukum, Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/JSG.v3i1.05

Abstract

Pertumbuhan penduduk perkotaan yang terus meningkat menimbulkan dampak spasial yang serius bagi kehidupan kota, terutama dengan meningkatnya kebutuhan akan tempat tinggal atau permukiman, yang berpotensi terjadinya ketidakseimbangan kemampuan lahan permukiman. Penelitian ini bertujuan untuk menganalisis spasial daya dukung lahan permukiman di Kota Sentani dengan mengukur besaran luas lahan permukiman dan data jumlah penduduk. Hasil penelitian menunjukkan bahwa luas lahan permukiman di Kota Sentani pada tahun 2023 mencapai 704.874,57 m², sementara jumlah penduduk sebanyak 73.927 jiwa. Nilai Daya Dukung Lahan Permukiman (DDPm) yang diperoleh sebesar 0,36 m²/kapita, yang menunjukkan bahwa daya dukung lahan di Kota Sentani tergolong rendah dan tidak mampu menampung kebutuhan penduduk dengan layak. Faktor utama yang memengaruhi kondisi ini adalah alih fungsi lahan yang tidak terkendali, distribusi infrastruktur yang tidak merata, serta keterbatasan lahan akibat kawasan konservasi Pegunungan Cycloop dan Danau Sentani. Hasil penelitian ini diharapkan dapat mendukung perencanaan tata ruang berbasis daya dukung lahan secara berkelanjutan dan mencegah dampak negatif pembangunan, seperti degradasi lingkungan dan risiko bencana. Dengan demikian, hasil penelitian ini diharapkan dapat menjadi dasar kebijakan dalam pengelolaan dan pengembangan wilayah Kota Sentani secara bijaksana dan berkelanjutan.
Rekonstruksi Ruang Peri-Urban: Interaksi Sosial-Ekonomi Dalam Dinamika Kutub Pertumbuhan dan Proses Gentrifikasi di Kawasan Perkotaan Bulukumba Isra, Muhammad; Sakti, Harry Hardian; Radhinal, Yan; Ahmad, Despry Nur Annisa
Jurnal Peweka Tadulako Vol. 4 No. 1 (2025): Jurnal PeWeKa Tadulako
Publisher : Prodi PWK Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/peweka.v4i1.47

Abstract

The urban development of Bulukumba Regency exhibits a spatial expansion trend toward peri-urban areas, historically marked by the emergence of new growth poles. This phenomenon reflects ongoing urbanization and generates complex social dynamics through population migration from both rural and urban regions. Migration is driven by the pursuit of economic opportunities, more affordable housing, and lifestyle shifts increasingly oriented toward urban preferences. This study aims to analyze the influence of growth poles on morphological changes and to explore the role of gentrification in shaping socio-economic interaction patterns. A quantitative approach is employed, utilizing spatial analysis, correlation testing, and grounded theory to examine the phenomenon holistically. The findings indicate that both physical and non-physical factors are influenced by fragmented growth patterns, often concentrated around economic potential and high accessibility. The formation of growth poles is seen as a consequence of leapfrogging centrifugal urban expansion, whereby central urban development stimulates the emergence of new development clusters in peri-urban zones. These zones act as transitional spaces offering economic opportunities with lower living costs, making them attractive destinations for urban migrants facing socio-economic pressures in their places of origin. Gentrification is not merely a physical revitalization process but also functions as a socio-economic filtering mechanism that reconstructs cultural identity and values within industrialized spaces. The shift from an agrarian to an urban economy marks a structural transformation shaped by market efficiency, competitiveness, and the rationality of spatial capitalism.
The modeling of earthquake disaster mitigation in Bulukumba Regency: A stakeholder approach Ahmad, Despry Nur Annisa; Tarigan, Suria Darma; Tjahjono, Boedi; Sitanggang, Imas Sukaesih; Sakti, Harry Hardian
Journal of Degraded and Mining Lands Management Vol. 12 No. 4 (2025)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2025.124.8247

Abstract

Bulukumba Regency, located along the Walanae Fault and within a seismic gap zone, indicates the potential for future earthquake recurrence. However, the regional and community capacity to address earthquake hazards remains weak, as evidenced by the lack of regulations accommodating earthquake studies in Bulukumba. This study aimed to design an earthquake mitigation model based on a stakeholder approach in Bulukumba Regency. The methodology employed MACTOR (Matrix of Alternatives for Choice and Trade-Offs), utilizing survey and questionnaire data. The output is a framework for policymakers in earthquake mitigation activities. The results suggested two effective alternative models: (i) a stakeholder formulation model based on role capacity and (ii) a time segmentation model for stakeholder involvement in earthquake mitigation. Based on these two models, it is essential to establish strong coordination and collaboration among these actors in order to minimize the impact of disasters on both the community and the environment.
Penaksiran Risiko Bencana Gempa Bumi Di Kecamatan Bonto Bahari Kabupaten Bulukumba Sakti, Harry Hardian; Asman, Andi Idham; Ahmad, Despry Nur Annisa; Fakhruddin, Muhammad; Isra, Muhammad
Jurnal Geosaintek Vol. 8 No. 3 (2022)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The location of Bonto Bahari district on the fault of Walanae implicates a potential earthquake disaster. Bonto Bahari District on the spatial plan of Bulukumba in the year of 2012-2032 is set as a Regency Special Economic Zones (SEZs) for Marine tourism. Justifying the stipulation of the rules, it should be integrated into geological risk in order for sustainable development of tourist activities in the Bonto Bahari District. The purpose of this study are: (1) analyzing the hazard of an earthquake in Bonto Bahari district; (2) analyzing the vulnerability of earthquakes in Bonto Bahari district; and (3) analyzing the risk of earthquakes in Bonto Bahari district. The methods used are quantitative-qualitative and spatial analysis. Research shows maps of the hazard levels of earthquakes, maps of earthquake vulnerabilities, and maps of earthquake risk levels. The research is expected to provide input to local governments on taking early preparedness measures in response to the threat of an earthquake disaster in the Bonto Bahari district.
Pengaruh Perubahan Lahan Terhadap Suhu Iklim Mikro Urban Heat Island (UHI) di Kawasan Perkotaan Kabupaten Bulukumba Kausar, Aksar; Ahmad, Despry Nur Annisa; Radhinal, Yan; Asman, Andi Idham; Sakti, Harry Hardian
Jurnal Peweka Tadulako Vol. 4 No. 2 (2025): Jurnal PeWeKa Tadulako
Publisher : Prodi PWK Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/peweka.v4i2.81

Abstract

Climate change and global warming have caused widespread environmental degradation. These impacts are directly experienced in Indonesia, particularly in the urban area of Bulukumba Regency, specifically in Ujung Bulu District. The increase in land use changes toward built-up areas has influenced the intensity of the Urban Heat Island (UHI) phenomenon. This study aims to analyze the effect of land use change on the Urban Heat Island (UHI) phenomenon in Bulukumba Regency during the periods of 2014, 2019, and 2024. A quantitative method was employed through satellite image interpretation to identify land use changes and analyze surface temperature using Landsat 8 Band 10 imagery data. The results indicate an increase in surface temperature in the urban area of Bulukumba Regency throughout the 2014–2024 period. The simple linear regression analysis shows a significant positive correlation between land use change and surface temperature increase, with a regression coefficient (r = 0.734) and a coefficient of determination (R² = 0.81), which falls into the high category. Furthermore, areas with high surface temperatures tend to follow the spatial pattern of densely built-up land use.
Spatial Planning for Coastal Area Based on Tsunami Hazard in Bulukumba Regency Sakti, Harry Hardian; Radhinal, Yan; Ahmad, Despry Nur Annisa; Aldiansyah, Farhan
Jurnal Linears Vol. 8 No. 2 (2025): Jurnal LINEARS
Publisher : Universitas Muhammadiyah Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26618/7knf3639

Abstract

ABSTRACT:  The record of disasters in coastal areas that have occurred in Bulukumba Regency is the tsunami event due to an earthquake on December 29, 1820. The epicenter in the Flores Sea and the death toll in Bulukumba Regency at that time reached around 500 people. This event needs to be an early preparedness because tectonic disasters have the potential for a period of repetition. The purpose of this study is to analyze the tsunami hazard level and formulate coastal spatial planning policies based on the potential tsunami hazard of Bulukumba Regency. The methods used are statistical, descriptive qualitative, and spatial analysis approaches. The parameters used in determining the tsunami hazard level are earthquake hazard level, land elevation, slope slope, distance from rivers, and morphology. The results show that the coastal area is predominantly classified into low- and medium-hazard categories. Low-hazard zones occupy the largest spatial extent (notably Gantarang: 16,659.42 ha; Ujung Loe: 14,535.05 ha), while medium-hazard zones are more spatially limited but concentrated in critical locations (e.g., Bonto Bahari: 732.35 ha; Kajang: 423.06 ha; Herlang: 365.75 ha). Under a worst-case seismic scenario (7.0–7.5 Mw), the potentially affected area is estimated at 19,784 ha (25.85% of the coastal land area), with an exposure of >67,000 buildings, predominantly in Ujung Bulu (42,213 buildings). These findings have direct implications for the Regional Spatial Plan (RTRW). We recommend (1) restricting new development in identified medium-/high-exposure coastal segments, (2) designating Temporary Evacuation Sites (TES) on topographically safe locations (slope > 2%), and (3) integrating evacuation routes with the existing urban road network to ensure rapid accessibility. By providing quantitative hazard maps and concrete policy recommendations, this study fills a critical gap between tsunami hazard assessment and coastal spatial planning in Bulukumba, offering an evidence base for resilience-building and further risk-focused research.
Co-Authors Aldiansyah, Farhan Andi Idham Asman Boedi Tjahjono Despry Nur Annisa Ahmad, Despry Nur Annisa Farhan Aldiansyah Imas Sukaesih Sitanggang Isra, Muhammad Kausar, Aksar Muhammad Fakhruddin Muhammad Isra NURUL WAHYUNI Suria Darma Tarigan Yan Radhinal