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INDONESIA
Jurnal Sylva Lestari
Published by Universitas Lampung
ISSN : 23390913     EISSN : 25495747     DOI : https://doi.org/10.23960
Core Subject : Science, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Energy Environmental Science Materials Science & Nanotechnology
Jurnal Sylva Lestari (JSL) [P-ISSN 2339-0913 | E-ISSN 2549-5747] publishes original research articles related to all aspects of forestry and environmental sciences which includes, but not limited to the following topics: forest and natural resources management, biodiversity conservation and management, wood science and timber technology, agroforestry and social forestry, forest products and services, and socio-economics of natural resources. It is primarily a medium for disseminating original theoretical and experimental researches, as well as technical reviews. This journal issues one volume annually consist of three issues that delivered every January, May, and September.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Kehutanan
Articles 15 Documents
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Search results for , issue "Vol. 11 No. 3 (2023): September" : 15 Documents clear
Growth and Morpho-Stomatal Response of Kenaf (Hibiscus cannabinus) to Varying Water, Light, and Soil Conditions Jonathan Ogayon Hernandez; Leah Grace Abalos Manese; Hazelyn Lacasa Lalog; Vrenissa Jane Valenzuela Herradura; Willie Payawan Abasolo; Lerma San Jose Maldia
Jurnal Sylva Lestari Vol. 11 No. 3 (2023): September
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v11i3.757

Abstract

This study investigated the stomatal responses of kenaf (Hibiscus cannabinus) to varying water, light, and soil conditions to explain how the species acclimatize to the changes in growing conditions. Seedlings were subjected to different watering regimes (daily – CON, 2 days interval – W2, 3 days interval – W3), light intensities (high, moderate, low), and soil conditions (garden soil – GS, Mt Makiling soil – MAK, UP Land Grant soil – UPL). The biomass, stomatal density (SD), epidermal cell density (ECD), stomatal index (SI), stomatal aperture length (SAL), guard cell length (GCL), stomatal area (SA), and potential conductance index (PCI) were measured across treatments. Water and light treatments had significant effects, but soil treatment did not affect most of the parameters measured. CON and/or W2 and high light intensity resulted in a higher SD, SI, SAL, and GCL, which resulted in a higher PCI, compared with the other water and light treatments. Contrarily, W3-treated seedlings had lower SD but significantly lower SAL, GCL, PCI, and aboveground biomass, compared to CON and W2-treated ones. Biomass allocation to root was also significantly higher in W3-treated seedlings. Therefore, kenaf seedlings exhibited a degree of stomatal plasticity in response to contrasting water, light, and soil conditions. Keywords: biomass allocation, potential conductance index, shade tolerance, stomatal index, water stress
Ultrasound-Assisted Extraction of Antimalarial Compounds from the Bidara Laut (Strychnos ligustrina) Heartwood Sri Familasari; Rita Kartika Sari; Wasrin Syafii; Anne Carolina; Umi Cahyaningsih; Siti Sa'diah
Jurnal Sylva Lestari Vol. 11 No. 3 (2023): September
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v11i3.682

Abstract

The aqueous wood extract of bidara laut (Strychnos ligustrina) from maceration demonstrated the greatest antimalarial activity against Plasmodium falciparum strain 3D7. However, this method has several limitations, including a lengthy extraction time, which allows for microorganism contamination. The aim of this study was to quantify the yield, evaluate the antimalarial effectiveness of the P. falciparum growth in-vitro, and analyze the aqueous bidara laut heartwood extracts phytochemical composition from the two different extraction methods,  namely the method of maceration extraction for 24 hours and the ultrasound-assisted extraction (UAE) for 30 (UAE30), 45 (UAE45), and 60 (UAE60) minutes. The bidara laut heartwood extract from the UAE60 method had relatively similar yield and antimalarial activity with the bidara laut heartwood extract from the UAE45 method. However, these extracts had higher yield and antimalarial activity than the extracts from the maceration and the UAE30 methods. The results of LC-MS/MS analysis revealed that the main compounds in the UAE45 and UAE60 extracts were strychnine, quinaprilat, and 3,4-bis-cyclobut-3-ene-1,2-dione, which has potent antimalarial properties. Keywords: antimalarial activity, Plasmodium falciparum, quinaprilat, strychnine, Strychnos ligustrina
Implications of Forest Policy Changes on Investment Program Strengthening Forest Management Unit in Central Sulawesi Sudirman Daeng Massiri
Jurnal Sylva Lestari Vol. 11 No. 3 (2023): September
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v11i3.709

Abstract

The forest investment program, supported by foreign funding, aims to promote the strengthening of Forest Management Units (FMUs) in implementing decentralized forest management in Indonesia. Ten FMUs have received funding from the forest investment program since 2017, one of which is FMU Dampelas Tinombo of Central Sulawesi. This program exited in 2022. During its implementation project, Indonesia’s forestry policy is changing, as are the primary tasks and functions of FMUs. This study examined the implication of forest policy changes on the sustainability of the FMU strengthening investment program in FMU Dampelas Tinombo of Central Sulawesi Province. This study was conducted from July to September 2022. Data was collected through interviews and focused group discussions with FMU managers and stakeholders. This study showed that the forest investment program to strengthen the FMU in Central Sulawesi had been effectively implemented but had not significantly affected decentralized forest management practices. Changes in forestry policy brought about by the amendment of the Job Creation Law and its subsidiary regulations have significantly affected the program’s performance and sustainability. The business development program promoting FMU independence must be discontinued because it contradicted the FMUS’ constitutionally mandated primary responsibilities and duties. FMU should optimize the governance function in achieving community-based forest management, which includes forest planning, facilitation, and technical guidance. Keywords: Forest management unit, forest policy change, governance, performance, sustainability
Analysis of Stakeholders’ Interest and Influence in Non-Timber Forest Products Marketing: A Case Study in the Forest Management Unit Batutegi, Lampung Dwi Kurniati; Hardjanto; Soni Trison
Jurnal Sylva Lestari Vol. 11 No. 3 (2023): September
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v11i3.718

Abstract

Stakeholders are involved in the management of the Forest Management Unit (FMU) Batutegi, including the marketing of non-timber forest products (NTFP). The performance of NTFP marketing in the FMU Batutegi currently has not provided optimal benefits, especially for forest farmers. Stakeholders have divergent interests and influence in NTFP marketing. The research aimed to analyze the interests and influence of each stakeholder and the relationship between stakeholders in the marketing of NTFP. Data collection was carried out through observation and interviews. Interviews were conducted with informants and stakeholders. The scoring method was used in this study. Data and information were analyzed qualitatively. The study results showed that the marketing of NTFP in the FMU Batutegi involves 15 stakeholders. There are 11 parties with moderately high interest and 8 parties with moderately high influence. FMU Batutegi is the most responsible party or central actor in NTFP marketing because it has relationships with important stakeholders, has the most relationships, and can control the flow of information in the network. The method’s usefulness for understanding stakeholders’ position in NTFP marketing. The study result is expected to be utilized by policymakers to facilitate cooperation between stakeholders to achieve optimal NTFP marketing performance. Keywords: FMU Batutegi, marketing, non-timber forest products, stakeholders
Revealing the Tree Species Diversity within Koto Mahligai Temple Ruin, Muaro Jambi Rizmoon Nurul Zulkarnaen; Muhammad Rifqi Hariri; Lutfi Rahmaningtyas; Wahyu Adi Nugroho
Jurnal Sylva Lestari Vol. 11 No. 3 (2023): September
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v11i3.724

Abstract

Koto Mahligai Temple is a cultural heritage site in the Muaro Jambi Regency. Environmental disturbances, especially plant-related ones, are rare at this precious shrine. As a result, plant diversity is still sustained. The research aimed to evaluate the plant diversity and general vegetation condition in the Koto Mahligai Temple. The method used was the comprehensive inventory approach, focusing on woody plants through the census sampling method. Vital data were meticulously collected for each tree, including height, diameter, and morphological characteristics. The result found 246 trees from 26 species in the vicinity, including native and introduced species. Local plants that are infrequently seen in urban areas, such as Bouea macrophylla, Canthiumera robusta, Dillenia sumatrana, Flacourtia rukam, and Semecarpus heterophyllus, are among these species. The result suggested that the Koto Mahligai Temple could be well developed into a public site for stakeholders interested in studying plant diversity in Muaro Jambi Regency, owing to the variety and distinctiveness of its plants. Furthermore, the cultural significance of these plants is tied to the Koto Mahligai Temple, which attracts tourists. The study emphasizes the need for future strategies that harmonize plant preservation, archaeological exploration, and temple restoration efforts. Keywords: diversity, enigmatic species, Koto Mahligai, native plant, Sumatra
Forest Farmer Group Development Model for Sustainable Well-Being in Kampar Regency Gandhiko Mohta; Leti Sundawati; Budi Kuncahyo
Jurnal Sylva Lestari Vol. 11 No. 3 (2023): September
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v11i3.748

Abstract

Sustainable forest resource utilization can alleviate poverty in developing countries, including Indonesia, mainly by rural community groups like forest farmer groups (KTH). However, the capacity of KTH to manage forest resources is still low, leading to a decline in their well-being, exemplified in KTH in Kampar Regency. Unlike previous studies, this research focuses on developing KTH based on institutional, area management, and business aspects. The objective of the study is to analyze the factors influencing KTH’s well-being and build a development model for KTH. The research was conducted in Kampar Regency with 193 respondents using a census method. Data analysis used the Partial Least Squares-Structural Equation Modeling (PLS-SEM) technique. The study’s findings reveal that business management significantly influences KTH’s well-being in Kampar Regency, followed by institutional and area management aspects. The development model for KTH involves enhancing key indicators in each aspect, such as KTH’s involvement in government/non-government organizations/other institution programs, appropriate area utilization, and increased business capital, as key steps to achieve a productive, self-reliant, prosperous, and sustainable management. Keywords: area, business development, forest farmer group, institutional, Poverty alleviation
The Patterns of Agroforestry and Its Contribution to the Community Income Emi Roslinda; Fransiska Wiwi Prisila; Yeni Mariani
Jurnal Sylva Lestari Vol. 11 No. 3 (2023): September
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v11i3.749

Abstract

Farmers choose an agroforestry pattern to fulfill various objectives, including obtaining their income. The diversity of fruit plants chosen by the Nanga Menterap village community as a component of the agroforestry system has the potential to contribute significantly as a source of community income. This research aimed to describe the agroforestry patterns and calculate the contribution of agroforestry patterns to the income of the people of Nanga Menterap Village, West Kalimantan Province, Indonesia. The research used a survey method by census. Data collection techniques included observation, questionnaires, and interviews with the Nanga Menterap Village community with agroforestry land. The agroforestry pattern in Nanga Menterap Village can be classified into two types: the agrisilvicultural and the agrosilvopastural. Farmers in Nanga Menterap Village apply a random mixture planting form in which crops and trees are planted irregularly. The agroforestry plants combined in the forestry component include durian (Durio zibethinus), aren (Arenga pinnata), tengkawang (Shorea stenoptera), mango (Mangifera indica), jackfruit (Artocarpus heterophyllus), and petai (Parkia speciosa). The agricultural component includes chili (Capsicum annuum), cocoa (Theobroma cacao), corn (Zea mays), coconut (Cocos nucifera), coffee (Coffea robusta), banana (Musa sp.), cassava (Manihot esculenta), long bean (Vigna unguiculata), ginger (Zingiber officinale), turmeric (Curcuma longa Linn. syn. Curcuma domestica Val.), eggplant (Solanum melongena), and tomatoes (Solanum lycopersicum), while the types of livestock such as pigs, domestic chickens, cows, and goats. The contribution of agroforestry to community income in Nanga Menterap Village is 82.74%. From these contributions, the agroforestry system is the right choice for the community and government to manage land. The governments should be able to facilitate and determine specific and targeted activity programs to improve the cultivation capabilities and welfare of farmers. Keywords: agroforestry, community, contribution, income
Chemical Constituent of Acacia auriculiformis Wood Extractives and Their Antioxidant Activity Yanico Hadi Prayogo; Irmanida Batubara; Rita Kartika Sari; Saat Egra; Kosei Yamauchi; Tohru Mitsunaga; Wasrin Syafii
Jurnal Sylva Lestari Vol. 11 No. 3 (2023): September
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v11i3.753

Abstract

Acacia auriculiformis showed good potential to be developed as a raw material for bioactive compounds. The heartwood of A. auriculiformis is still rarely explored. The purpose of this study was to identify the bioactive components of the heartwood. Six compounds were identified from the heartwood through nuclear magnetic resonance and mass spectroscopy, namely the C-3,4',7,8 hydroxyl substituted flavonoids and chalcone. Two methylated teracacidins and chalcone-like teracacidin were identified for the first time in the A. auriculiformis heartwood, along with three known compounds. These compounds showed good radical scavenging and reduction activity, compared to crude extract and ascorbic acid, using three different antioxidant assays. The molecular structure-dependent activity was observed to affect the trend of the different antioxidant activities. This finding shows good potential for further development of plant parts of A. auriculiformis from Indonesia as new raw materials for medicines. Keywords: Acacia auriculiformis, antioxidant, chalcone, flavonoid, heartwood
Heavy Metal Concentration in Mangrove Soils under Sonneratia caseolaris Trees: The Case of Kampung Kuantan Fireflies Park Laurna Nyangon; Seca Gandaseca; Samsuri Abdul Wahid Wahid; Mohamad Azani Alias
Jurnal Sylva Lestari Vol. 11 No. 3 (2023): September
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v11i3.754

Abstract

The local ecosystem potentiality is pressurized by the getting up heavy metal concentrations, especially in Kampung Kuantan Fireflies Park. This mangrove forest park, which is dominated by Sonneratia caseolaris, is a well-known place to visit for people who like nature in Kuala Selangor Peninsular Malaysia. However, the investigations on heavy metal concentration in mangrove soils under S. caseolaris are still limited.  This study aims to find out the concentration of heavy metal in mangrove soil under S. caseolaris.  The soil samples were taken from under S. caseolaris trees zone. Five plots were built up on mangrove soils through the Selangor River. Five sub-plots, each measuring 2 m ´ 2 m, were made for sample collection in each plot. The heavy metal contents and the geo-accumulation index (I-geo) were evaluated. As the results, the concentration of heavy metals on soils such as zinc (Zn), copper (Cu), lead (Pb), chromium (Cr), and cadmium (Cd) under the S. caseolaris trees of 240.24 mg/kg, 6.89 mg/kg, 25.46 mg/kg, 34.88 mg/kg, and 0.14 mg/kg, respectively.  The I-geo ratio indicated that the soils have low heavy metal deposits, with Cd having the lowest concentration and Zn having the highest. There is a significant difference between Zn and Cr concentrations on the soils in five plots, but there are no significant differences for Cu, Pb, and Cd. In general, the heavy metal contents throughout the sampling area were considered not polluted, since the amount of trace elements in the soil was relatively low compared to the average limit. Keywords: heavy metal, Kampung Kuantan Fireflies Park, Kuala Selangor, mangrove, Sonneratia caseolaris
The Physical and Magnetic Properties of Sengon (Falcataria moluccana Miq.) Impregnated with Synthesized Magnetite Nanoparticles Saviska Luqyana Fadia; Istie Sekartining Rahayu; Deded Sarip Nawawi; Rohmat Ismail; Esti Prihatini
Jurnal Sylva Lestari Vol. 11 No. 3 (2023): September
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v11i3.761

Abstract

Sengon is one of the fast-growing wood that dominates Indonesian plantation forests and has been used as industrial raw material, fuel, and construction material. To enhance the physical characteristics of sengon wood, it needs technology of wood quality improvement, such as impregnation method by using Fe3O4 nanoparticles. Beside to enhance the quality of sengon wood, this technology can also expand the utilization of fast-growing wood. The presented research aims to examine the effects on physical and magnetic properties of sengon wood after being treated by magnetite nanoparticles impregnation. Magnetite nanoparticles were prepared by coprecipitation method with a precursor solution of iron ions mixture and weak base (NH4OH). The treatments of the magnetic wood consisted of 3 different concentrations that is untreated, 1% and 5% magnetite nanoparticles impregnation solution with demineralized water as a dispersant. Dimensional stability parameters, such as weight percentage growth, bulking impact, and effectiveness against swelling are increasing along the increase of concentration. Characterization tests such as SEM–EDX analysis showed the existence of Fe deposition in the wood cell membranes and pores of the wood. XRD analysis showed the appearance of magnetic peaks in the diffractogram in accordance with the decreased of crystallinity while the concentration increased and FTIR analysis showed Fe-O functional groups. Sengon wood magnetic was identified based on the VSM study, as a superparamagnetic components with mild magnetic characteristics.

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