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All Journal Eco Forest Journal Jurnal Penelitian Pengelolaan Daerah Aliran Sungai (Journal of Watershed Management Research)
Ummu Kultsum
Universitas Indonesia Timur
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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Analisis Spasial Perubahan Tutupan Lahan Pada Sub Das Bulan Das Jeneberang Tahun 2018 dan 2025: Spatial Analysis of Land Cover Change in the Bulan Sub-Watershed in 2018 and 2025 Ummu Kultsum; Asikin Muchtar
Jurnal Kehutanan dan Lingkungan Vol. 3 No. 1 (2026): Mei
Publisher : Program Studi Kehutanan Fakultas Pertanian Universitas Islam Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59638/ecoforest.v3i1.122

Abstract

This study aims to analyze changes in land cover between 2018 and 2025 in the Bulan Sub-Watershed of the Jeneberang Watershed. The study was conducted from March to April 2026. The method used involved analyzing 2025 Google Earth imagery using ArcGIS 10.8 software. Meanwhile, land cover/land use data for 2018 was obtained from literature using Spot 6 and 7 imagery from 2018 for the same location. After analyzing the imagery, an overall accuracy assessment was conducted to verify the land cover/land use data directly in the field. The research results indicate the area of pine plantation forests in 2018 was 723.02 ha (40.78%) and decreased to 676.78 ha (38.17%) in 2025. Meanwhile, one land cover type that experienced a significant increase was dryland agriculture, which expanded from 240.96 ha (13.59%) in 2018 to 368.95 ha (20.81%) in 2025. 2. Forest cover area decreased from 42.50% in 2018 to 39.34% of the Sub-Watershed’s total area of 1,772.87 ha by 2025. In contrast, non-forest land cover in the Bulan Sub-Watershed has increased, rising by three percentage points from 57.50% in 2018 to 60.66%.
Faktor-Faktor yang Mempengaruhi Keberhasilan Pertumbuhan Tanaman Rehabilitasi Hutan dan Lahan Periode 2019-2024 Di DAS Saddang (Factors Influencing The Success of Plant Growth in Forest and Land Rehabilitation in the Saddang Watershed from 2019 to 2024) : - Asikin Muchtar; Muh Bismar WWS; Wahyullah; Abd Kadir; Mahmud; Ummu Kultsum
Jurnal Penelitian Pengelolaan Daerah Aliran Sungai (Journal of Watershed Management Research) Vol 9 No 2 (2025): Jurnal Penelitian Pengelolaan Daerah Aliran Sungai (Journal of Watershed Manageme
Publisher : Asosiasi Peneliti dan Teknisi Kehutanan dan Lingkungan Hidup Indonesia (APTKLHI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59465/jppdas.2025.9.2.223-244

Abstract

Forest and land rehabilitation is carried out annually to restore watershed conditions. In 2019, the BPDAS Jeneberang Saddang planted pine, candlenut, and sugar palm trees in Block 1 and 2, which cover ​​50 hectares each, in Rosoan Village, Enrekang District, Enrekang Regency, South Sulawesi Province. This study aims to determine the success rate and factors influencing the growth success of Forest and Land Rehabilitation (RHL) plant planted in 2019, and to determine the factors influencing their success. This study was a survei study. Data were collected through observations, interviews, and documentation. Data analysis were carried out using multiple linear regression with three independent variables: soil physical factors, soil chemistry, and socio-economic conditions. The results showed that the growth rate of pine (Pinus mercusii) was 36.36% (very low)  or 432 trees/ha, candlenut (Aleurites moluccana) was 42.7% (very low) or 470 trees/ha, and sugar palm (Arenga pinnata) was 39.2% (very low) or 400 trees/ha. Soil physical factors such as clay texture (68.13%), and the solum depth of 20–25 cm have a significant effect on plant growth (F count 14.866 > 2.810; t count 3.856 > 1.679; sig. 0.000). Additionally, soil chemical factors (F count 7.940; sig. 0.007) and community socio-economic factors (F count 18.143; sig. 0.000) also showed a significant effect. This study recommended that BPDAS actively involve the surrounding community in intensive maintenance and budget for plant maintenance cost to optimize plant growth.
Co-Authors Abd Kadir Asikin Muchtar Mahmud Muh Bismar WWS Wahyullah