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All Journal Jurnal Pendidikan Geografi Undiksha Jurnal ENMAP
Mardiana, Oriza
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Analisis Spasial Kerapatan Vegetasi di Kabupaten Tabanan Luh Gede Sri Utami; Dwipayana, Made; Sumadyanti, Umi Varica; Mardiana, Oriza
Jurnal ENMAP (Environment and Mapping) Vol. 6 No. 01 (2025): Maret 2025, Jurnal ENMAP
Publisher : Universitas Pendidikan Ganesha

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Abstract

This study aims to analyze vegetation density in Tabanan Regency spatially using the NDVI (Normalized Difference Vegetation Index) method derived from Landsat 8 satellite imagery. The analysis process was carried out by processing band 4 (Red) and band 5 (NIR) to generate NDVI values, which were then classified into six vegetation density categories: non-vegetated, very sparse, sparse, moderate, dense, and very dense. The results showed that vegetation in the very dense category dominates most areas, particularly in highland sub-districts such as Pupuan, Penebel, and Selemadeg Barat. Conversely, lowland areas such as Kediri, Tabanan, and Marga showed lower vegetation density due to intensive human activities, such as settlements and agriculture. This study emphasizes the importance of protecting densely vegetated areas as conservation zones and highlights the need for reforestation and proper spatial planning efforts to maintain ecosystem balance and ensure environmental sustainability in Tabanan Regency.
Proyeksi Kerentanan Banjir Bandang pada Tahun 2045 di Kecamatan Baturiti Kabupaten Tabanan Provinsi Bali Mardiana, Oriza; Atmaja, Dewa Made; Budiarta, I Gede; Jayantara, I Gst Ngr Yoga; Kurniawan, Wayan Damar Windu
Jurnal Pendidikan Geografi Undiksha Vol. 13 No. 2 (2025): Jurnal Pendidikan Geografi Undiksha
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jjpg.v13i2.78387

Abstract

The Baturiti District is a district that often experiences flash floods, causing vulnerability in the affected areas. The vulnerability caused by these flash floods includes social vulnerability, physical vulnerability, economic vulnerability, and environmental vulnerability. Therefore, there is a need to project the vulnerability to flash floods in order to minimize the impact in the coming years. This research aims to determine the extent and location of potential flash flood vulnerability in the Baturiti District in the year 2045. The method used in this research is Multi Criteria Decision Analysis (MCDA) according to Regulation No. 2 of 2012 by the National Disaster Management Agency (BNPB). Each parameter is given its respective weight and will be classified using fuzzy logic approach, and for projection, arithmetic growth method and forecast method are used. The results of this research show that the projection of flash flood vulnerability in the Baturiti District in the year 2045 covers an area of 966 hectares. The location with the highest vulnerability area is in the villages of Angseri, Candikuning, Bangli, and Baturiti.
Co-Authors Dewa Made Atmaja Dwipayana, Made I Gede Budiarta I Gst Ngr Yoga Jayantara Luh Gede Sri Utami Sumadyanti, Umi Varica Wayan Damar Windu Kurniawan