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Andi irmayanti idris
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Jl. Prof. Dr. Baharuddin Lopa, S.H. Talumung, Majene, Sulawesi Barat. Kode Pos 91412, Kab. Majene, Sulawesi Barat 91412
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INDONESIA
Pangale Journal of Forestry and Environment
Published by Universitas Sulawesi Barat
ISSN : 27977390     EISSN : 28277732     DOI : https://doi.org/10.31605/pangale
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Analisis Kebijakan, Catatan Lapangan maupun Review Buku yang berkaitan dengan isu kehutanan dan lingkungan.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Kehutanan
Articles 56 Documents
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Analisis Laju Debit Sesaat di DAS Tubo Bagian Hilir Rosmaeni; Aldi; Demma Semu, Yulsan
Pangale Journal of Forestry and Environment Vol 5 No 2 (2025): Pangale
Publisher : Program Studi Kehutanan Fakultas Pertanian dan Kehutanan Universitas Sulawesi Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31605/pangale.v5i2.6018

Abstract

The discharge of a river basin is influenced by several factors such as rainfall, land use or vegetation conditions, soil type, and topography. This study was conducted to determine the magnitude of the instantaneous flow rate of the Tubo River Basin in the downstream section. The instantaneous flow rate was determined using the floatation method. The floatation method is the simplest method that can be done to measure the flow rate by flowing an object that can float on the water surface. This study used a ping pong ball with a distance of 10 m. Discharge (m3/s) can be determined by the formula of the river cross-sectional area (m2) multiplied by the river water flow rate (m/s). The river cross-sectional area is determined by measuring the river width multiplied by the average water depth. Meanwhile, the flow velocity can be determined by calculating the path length divided by the average travel time of the ping pong ball. Measurements were carried out on a straight section of the river and were carried out 10 times in the morning and afternoon. The results showed that the average flow discharge of the Tubo River Basin in the downstream section was 28.18 m3/s. The use of forest land of 15.15 ha is smaller than non-forest land of 249.66 ha, which has an impact on the small discharge rate. Land cover characteristics and low rainfall factors influence the discharge rate.
Penerapan Sistem Silvikultur pada Hutan Kemasyarakatan di Desa Alu Kecamatan Alu Kabupaten Polewali Mandar Syaifullah; Ritabulan; Idris, Andi Irmayanti
Pangale Journal of Forestry and Environment Vol 5 No 2 (2025): Pangale
Publisher : Program Studi Kehutanan Fakultas Pertanian dan Kehutanan Universitas Sulawesi Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31605/pangale.v5i2.6115

Abstract

Silvicultural systems play a vital role in the implementation of social forestry programs; however, their application at the community level continues to face various challenges. This study aims to describe silvicultural practices implemented by local communities within the Community Forest (Hutan Kemasyarakatan/HKm) program and to identify the limiting factors influencing their application. The research employed a descriptive qualitative approach, with data collected through observation, interviews, questionnaires, and document analysis. The results indicate that the community of Alu Village has applied a range of silvicultural practices, despite most respondents being unfamiliar with the technical term “silviculture.” Agroforestry is the predominant system adopted, integrating forest tree species such as teak, mahogany, and gmelina with plantation crops including cocoa, coffee, and candlenut, as well as food crops (maize and chili) and fruit trees (durian, rambutan, and nutmeg). Community knowledge related to silvicultural management is largely derived from intergenerational experience, while access to formal extension services remains limited. Constraints affecting the implementation of silvicultural practices can be categorized into technical and non-technical factors. Technical constraints include difficulties in seedling preparation and transportation, limited road access, and unpredictable weather conditions. Non-technical constraints involve limited financial resources, inadequate training opportunities, and insufficient support from relevant institutions.
Analisis Laju Infiltrasi pada Hutan Pinus (Pinus merkusii) dan Hutan Primer di Kabupaten Mamasa Yogi Andrianto; Nurmaranti Alim; Muhammad Fahyu Sanjaya; Dirhana Purnama; Imanuel Jaya Lihu
Pangale Journal of Forestry and Environment Vol. 6 No. 1 (2026): Pangale
Publisher : Program Studi Kehutanan Fakultas Pertanian dan Kehutanan Universitas Sulawesi Barat

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Abstract

Changes in vegetation cover due to human activities and forest management practices can significantly affect hydrological processes, particularly soil infiltration. Infiltration plays a vital role in maintaining groundwater availability, controlling surface runoff, and preventing erosion. A decline in infiltration capacity may reduce groundwater recharge and increase flood risk in upstream areas. This study aims to analyze and compare the infiltration rates between Pine Forests (Pinus merkusii) and Primary Forests in Mamasa Regency, West Sulawesi, which serves as an important water catchment area in the mountainous region. This research employed a comparative descriptive approach using field observation methods. Infiltration was measured using a Double Ring Infiltrometer at three observation points in each forest type. Measurements were recorded every five minutes for one hour to determine the initial (f0) and constant infiltration rates (fc) using the Horton (1940) equation. The average infiltration rates between the two forest types were then compared statistically. The results showed that the average infiltration rate in the Primary Forest was 95.7 mm/hour, whereas in the Pine Forest it was only 46.8 mm/hour, indicating a significant difference (p < 0.05). The higher infiltration rate in the primary forest is attributed to its looser soil structure, higher organic matter content, and greater soil biota activity, in contrast to the pine forest which has a thick layer of slowly decomposing litter that limits water percolation. It can be concluded that vegetation cover significantly influences soil infiltration capacity. The primary forest demonstrates a better water absorption capacity compared to the pine forest, thus playing a crucial role in maintaining hydrological balance and groundwater conservation in the mountainous areas of Mamasa Regency.
Serangga Predator pada Tanaman Kopi Tim-Tim di Desa Rusip Antara Kabupaten Aceh Tengah Muhammad Fikri Al Munawar; Saniar Fauza; Diah Fridayati
Pangale Journal of Forestry and Environment Vol. 6 No. 1 (2026): Pangale
Publisher : Program Studi Kehutanan Fakultas Pertanian dan Kehutanan Universitas Sulawesi Barat

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Abstract

Coffee (Coffea spp.) is a major agricultural commodity in Indonesia, particularly the Tim-Tim variety cultivated in the highlands of Aceh Tengah. Pest attacks pose a significant threat to coffee production, making the presence of natural enemies essential. This study aimed to identify predatory insects in Tim-Tim coffee plantations in Rusip Antara Village, Aceh Tengah Regency. Sampling was conducted using three trap types: light traps, yellow pan traps, and malaise traps, with three replications over three months. A total of 154 individuals belonging to 11 families were collected. The Shannon-Wiener diversity index (H’) ranged from 3.27 to 3.36, indicating high diversity across all trap types. The evenness index was very high (E = 0.97–1.00), showing no dominant family. Mantidae and Carabidae were the most abundant families. These findings suggest that Tim-Tim coffee agroecosystems in Rusip Antara support high natural biological control potential, reinforced by semi-organic management and shade-grown practices.
Debit Air Daerah Aliran Sungai Mallusetasi pada Tahun 2022 Menggunakan Model SWAT Zulkifli Wahda; Wahyuni Wahyuni
Pangale Journal of Forestry and Environment Vol. 6 No. 1 (2026): Pangale
Publisher : Program Studi Kehutanan Fakultas Pertanian dan Kehutanan Universitas Sulawesi Barat

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Abstract

River discharge characteristics in a watershed are strongly influenced by two important factors, namely the physical conditions and rainfall on catchment area. The Mallusetasi watershed is one of the watersheds in Barru Regency that frequently experiences flooding. This study aimed to analyze the factor affecting river discharge and the flow regime coeeficient in the Mallusetasi Watershed. The research employed a quantitative descriptive method. Data collection was carried out by downloading several satellite imagery and climate datasets, followed by field observations. The obtained data were analyzed using the Soil and Water Assessment Tool (SWAT) model. The results showed that the main factors influencing discharge in the Mallusetasi Watershed were topography and soil characteristics. The watershed is predominantly characterized by steep slope classes covering a total area of 4,422.51 ha, while the soil texture is dominated by clay loam covering 6,412.59 ha. These conditions resulted in very high Flow Regime Coefficient (FRC) values in the Mallusetasi Watershed. Sub-watershed 1 had an FRC value of 155.40, Sub-watershed 2 had an FRC value of 133.24, and Sub-watershed 3 had an FRC value of 180.82. All sub-watersheds recorded FRC values greater than 110, which are classified as very high. The high FRC values indicate that the hydrological conditions of the Mallusetasi sub-watersheds are poor.
Serangga Parasitoid pada Tanaman Kopi Varietas Tim-Tim (Coffea arabica x Coffea canephora) di Kabupaten Rusip Antara Aceh Tengah Arini; Marlina; Aidil Amar
Pangale Journal of Forestry and Environment Vol. 6 No. 1 (2026): Pangale
Publisher : Program Studi Kehutanan Fakultas Pertanian dan Kehutanan Universitas Sulawesi Barat

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Abstract

This study aimed to identify the composition, diversity, and evenness of parasitoid insects in the Tim-Tim coffee variety plantation ecosystem in Pilar Village, Rusip Antara District, Central Aceh Regency, as a basis for biological pest control. Data were collected using a purposive sampling survey method with three types of traps (light traps, yellow plate traps, and malaise traps), then analyzed using the Shannon-Wiener diversity index (H') and Pielou's evenness index (E). The results showed that 54 parasitoid individuals from 10 families were obtained, with Ichneumonidae as the dominant family. Light traps were the most effective in capturing parasitoids (25 individuals), followed by yellow plate traps (22 individuals) and malaise traps (7 individuals). The H' values ranged from 2.27–2.72 (moderate category), while the E values ranged from 0.96–1.00 (high category). It is concluded that the parasitoid community in the Tim-Tim coffee ecosystem has moderate diversity but high evenness, reflecting a stable community structure with potential to support sustainable biological control of coffee pests.  

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