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All Journal Indonesian Journal of Geography Jurnal Penelitian Pendidikan IPA (JPPIPA) Agrienvi : Jurnal Ilmu Pertanian Jurnal Hutan Tropika
Afentina, Afentina
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Education Materials Science & Nanotechnology Physics

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KUALITAS PELET KAYU PADA BERBAGAI KOMPOSISI BAHAN DARI LIMBAH SERBUK KAYU BANGKIRAI DAN MERANTI MERAH Indrayanti, Lies; Afentina, Afentina; Yanarita, Yanarita; Pidjath, Chartina
Agrienvi: Jurnal Ilmu Pertanian Vol. 18 No. 1 (2024): Juni 2024: Journal Agrienvi
Publisher : Agrienvi: Jurnal Ilmu Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/aev.v18i1.15257

Abstract

Penelitian ini dilakukan untuk menguji kualitas pelet kayu dengan komposisi campuran limbah serbuk kayu Bangkirai berbanding Meranti Merah. Perbandingan komposisi berturut-turut yaitu 100:0, 75:25, 50:50, 25:75 dan 0:100, masing-masing tiga kali pengulangan. Hasil penelitian menunjukkan nilai kadar air, kadar abu, kadar zat mudah menguap, kadar karbon terikat dan nilai kalor masuk dalam standar SNI untuk semua perlakuan, kecuali nilai kerapatan. Nilai kadar abu dan nilai kalor masuk dalam standart Prancis (ITEBE), kecuali kadar air dan kerapatan. Pada standar Swedia nilai kerapatan, kadar abu dan nilai kalor memenuhi standar, kecuali nilai kadar air. Hasil analisis ragam perlakuan komposisi serbuk kayu menunjukkan perbedaan yang nyata hanya pada nilai kerapatan dan nilai kalor. Kerapatan dan nilai kalor terbaik pada komposisi Bangkirai dan Meranti Merah 100:0, diikuti dengan komposisi 75:25. Perbandingan komposisi bahan ternyata tidak mempengaruhi kualitas pelet, karena perlakuan terbaik pada komposisi 100% kayu Bangkirai. Pemanfaatan limbah Kayu Bangkirai prospektif untuk dijadikan pelet kayu dari segi kualitas, baik untuk konsumsi dalam negeri maupun ekspor, namun perlu perhatian dalam penanganan serbuk kayu untuk menurunkan kadar air, sehingga dapat meningkatkan nilai kerapatan.
Deforestation Characteristics between 2006 and 2020 over Tropical Forest in Central Kalimantan, Indonesia Segah, Hendrik; Afentina, Afentina; Fatkhurohman, Fatkhurohman; Aguswan, Yusuf
Indonesian Journal of Geography Vol 57, No 1 (2025): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijg.90049

Abstract

Deforestation is reported to possess a vast and detrimental impact on the environment, economy, and social aspects of the community. In this context, the phenomenon should be assessed and analyzed to inform the decision-maker overseeing issued policy and development strategies. Therefore, this research aimed to characterize deforestation in Central Kalimantan between 2006 – 2020 using land cover map issued by the Indonesian Ministry of Environment and Forestry. Changes in natural forest cover were calculated and analyzed using the Remote Sensing and Geographical Information System (GIS) to determine trend, location, and land cover replacement of deforestation, reforestation, and degradation in Central Kalimantan Province, Indonesia. A series of Landsat images from 2000 to 2020 was used with a spatial resolution (30 m) and frequent revisit cycles. Additionally, the levels of forest loss, restoration, and degradation were accurately mapped by analyzing spectral bands and vegetation indices, providing valuable information for conservation efforts and other land-based policies. The results showed that Central Kalimantan lost 1.5 million ha of natural forest with a rate of deforestation of 117,000 ha/year from 2006 to 2020. Deforestation showed a decreasing trend and fluctuation in secondary swamps and dry forests located in the southern part of the island. This research could be used as a base to determine the target location for rehabilitation strategy to prevent further deforestation.Received: 2023-10-23 Revised: 2024-01-11 Accepted:  2025-01-24 Published: 2025-02-12
Uji Kualitas Log Kayu Kawui (Vernonia arborea Burch Ham) Setelah Masa Simpan Lima Tahun: Kawui Wood Quality Test after Five Years Storage Indrayanti, Lies; Siska, Grace; Afentina, Afentina; Wardhani, Isna
HUTAN TROPIKA Vol 19 No 2 (2024): Volume 19 Nomor 2 Tahun 2024
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v19i2.18592

Abstract

This study aims to understand physical and mechanical traits of kawui wood after storage period of five years. Further, this study aims to understand how the five years storage period influence the quality of kawui wood, and thus, it ensures the expected standard quality of the wood after longer term of storage. The method used in this study is Complete Randomized Design factorial, whereby the first factor is tree. The second factor is the year which are year 1 (2019) and year 2 (2024). Each of the factor is executed within tree repetition. The making of test samples followed the DIN 52-183 and 52 182 standards. The results show that for the density, MoR and MoE parameters of kawui wood with a storage period of five years is a significant effect except for the water content parameter. The average water content value of the research results was 14%, still within the reference design value of SNI 7973: 2013 which sets the water content at 19%. The decrease in density values showed the same tendency as the decrease in MoR and MoE values. The decrease in MoR value with a storage period of five years ranged from 12.5-25%., while the decrease in MoE value with a storage period of 5 years ranged from 3-6% and was included in the E8 quality of SNI 7973: 2013 regulations
Kearifan Lokal Masyarakat Dayak Ngaju Dari Sistem Pertanian Tradisional Untuk Pendapatan Keluarga di Buntut Bali Kabupaten Katingan Kalimantan Tengah: Local Wisdom of the Dayak Ngaju Community from Traditional Agricultural Systems for Family Income in Buntut Bali, Katingan Regency, Central Kalimantan Yanarita, Yanarita; Tanduh, Yusintha; Silvianingsih, Yosefin Ari; Pidjath, Chartina; Madiyawati, Milad; Sudomo, Muhammad Fadhil Amiruddin; Afentina, Afentina
HUTAN TROPIKA Vol 19 No 2 (2024): Volume 19 Nomor 2 Tahun 2024
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v19i2.18627

Abstract

Local wisdom is knowledge and practices passed down by a group that serves as an identity and strategy carried out in meeting the needs of daily life. This research highlights the local wisdom of the Dayak Ngaju people of Buntut Bali village, Katingan, who use traditional farming systems for their livelihoods. This traditional farming system can not only be adapted to local conditions, but more importantly is able to contribute to food security and local ecological sustainability. The research methodology used was descriptive qualitative method with a field approach through observation and in-depth interviews with farmers who are members of the “Pamaran” farmer group. Data collected included crop types, cropping patterns and constraints faced by farmers. The results revealed that the Ngaju-Dayak community's cropping pattern is a polyculture farming system consisting of annual and seasonal crops. There are 15 types of annual plants dominated by durian and banana. While 14 types of annual crops are managed in rotation and intermittently, according to soil conditions and seasons. Simple economic formulas about the income obtained from the application of traditional agriculture show that crop yields cannot be guaranteed to be profitable, because the results are influenced by how many trees bear fruit that are seasonal, such as durian, langsat and rambutan. In traditional farming systems, there are also often wild plants that are used by the community that cannot be planted but are very popular as vegetables, such as: teken parei. Local wisdom in traditional farming systems needs to be maintained for the preservation of local species and increased innovation in the maintenance and improvement of crop products, especially fruits
Mata Pencaharian Berkelanjutan: Kajian Ekonomi Hasil Hutan Bukan Kayu Pada Hutan Rakyat Di Desa Buntoi Kalimantan Tengah: Sustainable Livelihood: Economic Study Of Non-Timber Forest Product in Community Forest in Buntoi Village Central Kalimantan Afentina, Afentina; Dulamin, Jumri; Sigalingging, Nico Fransiskus; Indrayanti, Lies; Yanarita, Yanarita
HUTAN TROPIKA Vol 20 No 1 (2025): Volume 20 Nomor 1 Tahun 2025
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v20i1.19817

Abstract

Community forests are one of sustainable development strategies that provides a variety of environmental services, especially to meet subsistence needs and provide community income. The important value of community forests can be seen from the contribution of non-timber forest products (NTFPs) to community's income. Therefore, it is important to conduct studies to create programs for the development of community forests. This research aims to identify various types of NTFPs in the Buntoi Village Community Forest, Central Kalimantan and their economic contribution to community income. This research uses a case study approach by combining qualitative and quantitative methods. Data was collected through field observations and interviews with respondents selected purposively. This research found 14 types of NTFPs and a contribution of Rp. 29,247,097/year/respondent or Rp. 2,437,258/respondent/month. The conclusion that can be drawn is that community forests are able to provide a significant contribution to income so they need to be developed further so that they can support increased community welfare.
Eksplorasi Pewarna Alami Di Vegetasi Hutan Resort Habaring Hurung Taman Nasional Sebangau Dengan Menggunakan Teknik Ecoprint: Exploration of Natural Dyes in the Forest Vegetation of Habaring Hurung Resort, Sebangau National Park, Using the Ecoprint Technique Damanik, Mei Cintya Angelia; Tanduh, Yusintha; Misrita, Misrita; Afentina, Afentina; Koroh, Desy Natalia
HUTAN TROPIKA Vol 20 No 1 (2025): Volume 20 Nomor 1 Tahun 2025
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v20i1.20686

Abstract

This study aims to identify vegetation species with potential as natural dyes and to describe the color direction, motif quality, and color fastness of ecoprint results using vegetation from the Habaring Hurung Forest Resort, Sebangau National Park. The research background is based on the biodiversity richness of peat swamp forests that has not been optimally utilized as a source of natural dyes in local wisdom-based creative industries. The ecoprint technique was selected for its eco-friendly nature and its ability to directly transfer the shape and natural color of leaves onto fabric. This research used a qualitative exploratory approach through field observation, interviews, documentation, and laboratory experiments. Vegetation sampling was conducted using a transect method covering an area of 0.4 hectares. The ecoprint process included mordanting, pounding, steaming, fixation, and color fastness testing. Color analysis referred to the Asianpaints color catalog, while motif quality was evaluated based on the visibility of leaf venation. The results identified 15 vegetation species with potential as natural dyes, including Tagula (Litsea sp.), Sepat (Macaranga trichocarpa), Mahang Kirik (Macaranga mauritia), and Kopi Himba (Coffea sp.). The dominant color directions produced were green, gray, and blue. The highest motif quality was found in Mahang Kirik, with clearly defined leaf veins, while the color fastness of most ecoprint fabrics remained stable after two washes. This indicates that the mordanting and fixation processes using iron mordant (tunjung) were effective in preserving color intensity. In conclusion, the peat forest vegetation in this area holds great potential as a source of natural dye for ecoprinting. These findings are expected to support the development of non-timber forest product (NTFP)–based crafts that promote forest conservation and empower surrounding communities.
Biodiversity of Medicinal Plants in The Central Kalimantan Forest Indonesia: A Call for Conservation Programs Afentina, Afentina; Yanarita, Yanarita; Indrayanti, Lies; Pidjath, Chartina; Putir, Patricia; Tanduh, Yusinta; Madiyawati, Milad; Siska, Grace
Jurnal Penelitian Pendidikan IPA Vol 11 No 11 (2025): November: In Progress
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i11.12856

Abstract

Medicinal plants are one of the essential ecosystem services provided by Indonesia's tropical forests. However, threats such as deforestation, forest degradation, climate change, and overharvesting jeopardize the existence of medicinal plants. This study aims to examine the diversity of medicinal plant species in three village forests in Central Kalimantan. The identification of medicinal plant species, including their local names, growth forms, and the number of individuals, was conducted using observation plots. Analysis was performed by calculating the Species Diversity Index, Species Richness Index, and Species Evenness Index. This research identified 69 species and 650 medicinal plant individuals. The study found that the diversity, species richness, and evenness of medicinal plant types varied across locations. Two villages exhibited medium diversity and richness index values (H’= 2.47 – 2.87; R= 3.82 – 4.48), while only one village was classified as having high values (H’=3.07; R=6.81). The species evenness index in all three locations showed a high category (E=6.69 – 11.54). The medicinal plants utilized by the community were predominantly climbers, herbs, and trees. High diversity of medicinal plant species was found in forest areas protected by customary regulations. This research conclude that di diversity of medicinal plant categorized as medium-high, and there are sign of declining biodiversity. Therefore, conservation program is urgently needed and encourage relevant stakeholders to participate.
Co-Authors Damanik, Mei Cintya Angelia Dulamin, Jumri Fatkhurohman Fatkhurohman Hendrik Segah, Hendrik Indrayanti, Lies Koroh, Desy Natalia Madiyawati, Milad Misrita, Misrita Muhammad Fadhil Amiruddin Sudomo Pidjath, Chartina Putir, Patricia Sigalingging, Nico Fransiskus Silvianingsih, Yosefin Ari Siska, Grace Tanduh, Yusinta Tanduh, Yusintha Wardhani, Isna Yanarita, Yanarita Yusuf Aguswan