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

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/enmap.v6i01.93387

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.
Dinamika Ketersediaan dan Kebutuhan Pangan Sumba Timur: Implikasi terhadap Ketahanan Pangan Daerah Ni Putu Setita Praena Widiantini; Wayan Damar Windu Kurniawan; I Gede Putu Eka Suryana; Umi Varica Sumadyanti; Oriza Mardiana
Jurnal ENMAP (Environment and Mapping) Vol. 6 No. 01 (2025): Maret 2025, Jurnal ENMAP
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/enmap.v6i01.94117

Abstract

East Sumba Regency faces challenges to food security due to geographical conditions, a dry climate, and socio-economic dynamics. This study aims to analyze the changes in food availability and demand between 2023 and 2029. A descriptive quantitative approach was employed, utilizing data on food production, population, and regional characteristics. The results show that although a food surplus existed in 2023, it is projected to decline by 2029 due to land degradation, climate change, population growth, and land-use change. Geographical factors such as topography, soil type, and water distribution significantly influence food production. In conclusion, strategies including the protection of productive land, the strengthening of irrigation systems, crop diversification, and the adoption of adaptive technologies are essential to enhance food security in the future.
Co-Authors I Gede Putu Eka Suryana Luh Gede Sri Utami Made Dwipayana Ni Putu Setita Praena Widiantini Oriza Mardiana Wayan Damar Windu Kurniawan