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All Journal Geosfera: Jurnal Penelitian Geografi
Gita Sukma Irvi Lestari
Program Studi Geografi, Fakultas Ilmu Sosial dan Hukum, Universitas Negeri Jakarta
Earth & Planetary Sciences Education Environmental Science Social Sciences

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Pemetaan Daerah Rawan Erosi di Kecamatan Purwosari, Kabupaten Gunungkidul Berbasis Model USLE Deyan Arum Sitaresmi; Virsha Shofiyani; Aisahrul Hutami; Ashila Fitria Zahra; Muhamad Imron Rosadi; Gita Sukma Irvi Lestari; Wandi Tri Januar
Geosfera: Jurnal Penelitian Geografi Vol 4, No 2 (2025): Geosfera : Jurnal Penelitian Geografi
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/geojpg.v4i2.35368

Abstract

This study aims to map the erosion hazard levels in Purwosari District, Gunungkidul Regency, Special Region of Yogyakarta, by integrating the Universal Soil Loss Equation (USLE) model with Geographic Information Systems (GIS). The study is motivated by the geomorphological conditions of the karst area, which are inherently susceptible to erosion, coupled with predominant land use in the form of rainfed fields and paddies with minimal vegetation cover. The methodology employs a quantitative descriptive-analytical approach consisting of four main stages: land cover classification, calculation of USLE parameters (R, K, LS, C, and P), spatial overlay to generate the erosion hazard level map, and field validation through observations and interviews with local farmers. The results indicate that approximately 80% of Purwosari District falls within the very low to low erosion hazard categories, while 18.74% is classified as moderate, and the remaining, albeit very small portion, is categorized as high to very high, predominantly in areas with steep slopes and limited vegetation. These findings underscore the need for implementing soil conservation strategies tailored to local characteristics to mitigate the rate of erosion, particularly in highly vulnerable areas. This research is expected to serve as a reference for formulating sustainable land resource management policies in karst regions.
Pemetaan Sebaran Objek Wisata di Kawasan Pantai Indah Kapuk (PIK) Menggunakan Sistem Informasi Geografis Ashila Fitria Zahra; Leysha Adinda Citra; Gita Sukma Irvi Lestari; Rizqa Rahmawati; Raihan Ali Ertono; Ahman Sya
Geosfera: Jurnal Penelitian Geografi Vol 4, No 2 (2025): Geosfera : Jurnal Penelitian Geografi
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/geojpg.v4i2.36199

Abstract

Pantai Indah Kapuk (PIK) area has transformed into an integrated urban tourism destination, yet its development lacks comprehensive spatial analysis regarding the distribution pattern of its tourist attractions. This study aims to map and analyze the distribution of tourism objects in the PIK area using a Geographic Information Systems (GIS) approach. The method used is spatial descriptive with coordinate data from satellite imagery, which is then analyzed to identify distribution patterns and clustering. The results show that tourism objects are concentrated unevenly, forming function-based clusters along the reclaimed coastal corridor, dominated by culinary, recreation, and shopping tourism. Key findings reveal spatial utilization disparities, a clear waterfront-oriented development pattern, and governance complexity due to the area being divided into three different administrative regions. The study concludes that this GIS mapping provides a critical spatial database for spatial planning and more integrated, sustainable tourism development that can address policy fragmentation across regional boundaries.
Co-Authors Ahman Sya Aisahrul Hutami Ashila Fitria Zahra Deyan Arum Sitaresmi Leysha Adinda Citra Muhamad Imron Rosadi Raihan Ali Ertono Rizqa Rahmawati Virsha Shofiyani Wandi Tri Januar