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Ahmad Yamani
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ANALISIS KESESUAIAN LAHAN TANAMAN AGROFORESTRY DI KAWASAN HUTAN DENGAN TUJUAN KHUSUS (KHDTK) UNIVERSITAS LAMBUNG MANGKURAT Yamani, Ahmad; Rudy, Gusti Seransyah; Agustina R., Arfa; Radam, Rosidah R.
Jurnal Hutan Tropis Vol 13, No 1 (2025): Jurnal Hutan Tropis Volume 13 Nomer 1 Edisi Maret 2025
Publisher : Lambung Mangkurat University-Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jht.v13i1.22186

Abstract

The failure of forest and land rehabilitation activities has often been attributed to fires; however, this is not always the case. It may also be due to the recommended plant species being unsuitable for the habitat or lacking a scientific basis. To ensure the success of forest and land rehabilitation activities and achieve their goals, the paradigm must shift. Specifically, the selection or recommendation of plant species should align with the characteristics of the land and involve local communities, as such initiatives often fail without their participation. For this reason, an agroforestry system—rehabilitating forest areas by planting forestry and agricultural crops with local farmers—needs to be implemented. This study aims to analyze the land suitability classes for Candlenut (Aleurites moluccana WILLD) and Corn (Zea mays) as agroforestry crops in the Special Purpose Forest Area (KHDTK) of Lambung Mangkurat University. The significance of this research lies in providing solutions to prevent forest and land fires while addressing critical land issues in KHDTK ULM. In principle, land suitability classification is conducted by integrating the plant's growth requirements with the land's characteristics. Hence, this classification is often referred to as the "matching method." The research results indicate that, for candlenut plants, all observed land units fall into the "moderately suitable" actual land suitability class, limited by base saturation factors (S2nr), except for UL3, which falls under the "marginally suitable" class, also limited by base saturation (S3nr). In contrast, UL4 is classified as "highly suitable" (S1). If improvements are made, all observed land units could potentially be classified as "highly suitable" (S1), except for UL3, which would remain "moderately suitable" due to base saturation limitations (S2nr). For corn plants, land units UL1, UL2, and UL6 are classified as "moderately suitable," limited by temperature and base saturation factors (S2tc,nr). UL3 falls under the "marginally suitable" class, limited by temperature and base saturation (S3tc,nr), while UL5 is classified as "marginally suitable," limited by texture (S3rc). UL4, meanwhile, is "moderately suitable" with a temperature limitation (S2tc). With improvements, the potential land suitability for UL1, UL2, and UL4 would be "moderately suitable," limited by temperature (S2tc), while UL3 and UL5 would remain in the "marginally suitable" category, limited by texture (S3rc).
Peran Pendamping Usaha Terhadap Resiliensi UMKM Melalui Legalitas Usaha Pasca Covid-19 Sampurnawati, Sampurnawati; Dodik Jatmika; Ahmad Yamani; Mahyudiansyah, Mahyudiansyah
Edunomics Journal Vol. 6 No. 2 (2025): Edunomics Journal
Publisher : FKIP, Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37304/ej.v6i2.22528

Abstract

This study aims to analyze the role of business mentoring in shaping the resilience of Micro, Small, and Medium Enterprises (MSMEs) in South Kalimantan after the COVID-19 pandemic, with business legality serving as a moderating variable. The pandemic has tested the endurance of the informal sector, particularly MSMEs lacking formal legal status. Using a quantitative approach, data were collected from 250 MSME actors in South Kalimantan through questionnaires and analyzed using SmartPLS software. The findings indicate that business legality—such as ownership of a Business Identification Number (NIB) or Micro and Small Business License (IUMK), P-IRT/BPOM certification, Intellectual Property Rights (trademark), and halal certification—has a positive and significant effect on MSME resilience. These legal recognitions serve as gateways to accessing financial support, ensuring operational sustainability, and creating partnership opportunities, among others. This study recommends strengthening MSME legalization programs as a strategic effort to enhance local economic resilience, emphasizing the critical role of human resources who provide mentoring to build the capacity of MSME actors in South Kalimantan
ANALISIS TINGKAT KESUBURAN TANAH AREA REHABILITASI DAS DI DESA ASAM RANDAH KECAMATAN HATUNGUN KABUPATEN TAPIN Annisa Anindya; Yusanto Nugroho; Ahmad Yamani; Yusuf Yuliadi
Jurnal Sylva Scienteae Vol 9, No 3 (2026): Jurnal Sylva Scienteae Vol 9 No 3 Edisi Juni 2026
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jss.v9i3.19751

Abstract

The objective of this study is to analyze the soil fertility level of the watershed rehabilitation area (DAS) in Asam Randah Village. Determination of the place of data sampling using purposive sampling, the use of purposive sampling techniques because not all samples have criteria that match the phenomenon under study. This research was carried out by soil fertility analysis with reference to the soil fertility table from the Bogor Soil Research Center, 1995. Knowing the level of soil fertility status requires analysis of KTK parameters, alkaline saturation, P2O5, K2O, and C-organic soil. Whole soil sampling is carried out at the soil surface of about 0-20 cm using a sample ring to analyze the physical properties of the soil (texture). Soil fertility status is categorized in medium, low, very low, and high classes determined by a combination of these parameter data. Based on the results of the laboratory analysis of soil texture, soil fertility in the Acid Randah Village Watershed Rehabilitation Area block IV has three soil fertility statuses, namely, low, medium, high assessment of land fertility status DAS Rehabilitation PT.Borneo Indobara Desa Asam Randah Blok IV fertility status is relatively low, low soil fertility occurs due to high rainfall in the area causing soil erosion, nutrient leaching and other biological conditions. The washing of nutrients causes the nutrients in the soil to decrease, this washing increases the concentration of hydrogen ions relative to alkaline ions, thus lowering the pH of the soil
STATUS KESUBURAN TANAH DI TAMAN HUTAN HUJAN TROPIS INDONESIA (TH2TI) BANJARBARU KALIMANTAN SELATAN Asmaul Zanah; Ahmad Yamani; Susilawati Susilawati
Jurnal Sylva Scienteae Vol 9, No 3 (2026): Jurnal Sylva Scienteae Vol 9 No 3 Edisi Juni 2026
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jss.v9i3.19742

Abstract

The purpose of this study was to identify and analyze the status of soil fertility levels in the Tropical Rainfall Park of Indonesia (TH2TI) Banjarbaru, South Kalimantan. Data from land units that became observation points, showed different land cover and area. Land unit 1 and land unit 3 with sengon land cover vegetation have an area of 0.49 ha and 0.43 ha respectively. Land unit 2 with jabon land cover vegetation has an area of 0.49 ha, and land unit 4 with mahogany land cover vegetation has an area of 1.00 ha. Soil fertility at the research site per land unit has a low level of soil fertility. The low soil fertility status at the research site is caused by low base saturation and the soil type which is dominated by yellow red podzolic soil, where this soil has relatively low fertility, then experiences leaching caused by high rainfall.
Carbon Stock and Sink Economic Values of Forest Ecosystem in the Suwangi Island Nature Park, Tanah Bumbu Regency, South Kalimantan, Indonesia Arfa Agustina Rezekiah; Abdi Fithria; Ahmad Yamani; Rosidah; Gt Syeransyah Rudy; Syam’ani D Ali; Yashinta Nur Shiba
Reinwardtia Vol. 25 No. 1 (2026): Reinwardtia
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/reinwardtia.2026.623

Abstract

REZEKIAH, A. A., FITHRIA, A., YAMANI, A., ROSIDAH, RUDY, G. S., ALI, S. D. & SHIBA, Y. N. 2026. Carbon stock and carbon economic value of forest ecosystem in the Suwangi Island Nature Park, Tanah Bumbu Regency, South Kalimantan, Indonesia. Reinwardtia 25(1): 1‒11. — The forests on Suwangi Island are currently facing significant challenges arising from human activities, land degradation, and potential land-use conflicts, all of which critically undermine their capacity to absorb and store carbon. The purpose of this study was to analyze the carbon stock value and economic value of carbon stored in Suwangi Island Nature Park. The allometric method was employed to calculate carbon stocks, with sampling locations determined using purposive sampling. The carbon stock results were subsequently converted to estimate the economic value of carbon. The land cover types identified in Suwangi Island Nature Park include primary forest, secondary forest, plantation, medium-density mangrove forest, and high-density mangrove forest. The analysis revealed that the highest biomass was stored in the primary forest and the lowest in the medium-density mangrove forest. The total carbon that can be stored at the research site is 80,45554667 tons/ha, and the resulting carbon economic value is IDR 2,851,347,872.68. These findings highlight the significant variation in carbon storage across different land cover types and underscore the critical role of primary forests as major carbon sinks. The novelty of this study lies in the integration of spatial (ArcGIS), ecological (allometric), and economic approaches within a single analytical framework, which remains rarely applied. The practical implications of this research emphasize the importance of management strategies based on carbon economic valuation and the potential utilization of carbon trading schemes, such as REDD+, to enhance conservation incentives and ensure the sustainability of Suwangi Island Nature Park management.  
INVENTARISASI JENIS TUMBUHAN ANGGREK (Orchidaceae) DI KAWASAN LEMBAH KAHUNG KABUPATEN BANJAR KALIMANTAN SELATAN Diana Febriani; Ahmad Yamani; Rina Kanti
Jurnal Sylva Scienteae Vol 9, No 2 (2026): Jurnal Sylva Scienteae Vol 9 No 2 Edisi APRIL 2026
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jss.v9i2.18941

Abstract

Penelitian ini bertujuan untuk menginventarisasi jenis anggrek, menganalisis sebaran, serta menilai keanekaragaman dan keseragaman anggrek di Lembah Kahung, Desa Belangian, Kabupaten Banjar, Kalimantan Selatan. Penelitian dilaksanakan dari Juni hingga November 2024 di Desa Belangian, Kecamatan Aranio. Objek yang diamati meliputi jenis anggrek dan pohon inangnya. Peta tematik habitat anggrek dibuat menggunakan data spasial yang diklasifikasi berdasarkan Normalized Difference Vegetation Index (NDVI). Jumlah sampel plot ditentukan dengan Intensitas Sampling (IS) sebesar 0,01% dari luas wilayah berkerapatan sangat rapat yang mewakili habitat anggrek. Plot ditentukan dengan metode purposive sampling dengan menyusuri jalur pendakian. Jika ditemukan anggrek, dibuat plot berukuran 20 m x 20 m. Data yang dikumpulkan meliputi jenis anggrek, jumlah, habitat (epifit atau terestrial), dan jenis pohon inangnya. Hasil penelitian menemukan 16 jenis anggrek, terdiri dari 15 jenis epifit dari 11 genus dan 1 jenis terestrial. Anggrek-anggrek ini tumbuh pada 10 jenis pohon inang. Pola sebaran anggrek di Lembah Kahung sebagian besar acak (14 jenis), sedangkan pola berkelompok dan seragam masing-masing ditunjukkan oleh 1 jenis anggrek. Indeks keanekaragaman anggrek termasuk sedang, sedangkan indeks keseragaman tinggi, yang menunjukkan distribusi jenis anggrek cukup merata di kawasan tersebut.
IDENTIFIKASI KESEHATAN TANAMAN OBAT NON ENDEMIK DI KEBUN RAYA BANUA KALIMANTAN SELATAN Eben Haezer Ginting; Normela Rachmawati; Ahmad Yamani
Jurnal Sylva Scienteae Vol 9, No 2 (2026): Jurnal Sylva Scienteae Vol 9 No 2 Edisi APRIL 2026
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jss.v9i2.18943

Abstract

Kesehatan tanaman menjadi aspek krusial dalam menjaga keberlangsungan ekosistem dan keseimbangan lingkungan. Penelitian ini bertujuan untuk mengidentifikasi kesehatan, tipe, dan tingkat kerusakan tanaman obat non-endemik di Kebun Raya Banua, Kalimantan Selatan. Metode pengukuran menggunakan Nilai Indeks Kerusakan (NIK) dengan kriteria nilai 0-5 untuk menentukan tingkat kesehatan tanaman. Hasil penelitian menunjukkan bahwa tanaman obat non-endemik di Kebun Raya Banua umumnya memiliki tingkat kesehatan yang baik dengan NIK berkisar antara 0-5. Hasil Penelitian identifikasi kerusakan menunjukkan bahwa kerusakan tertinggi terjadi pada bagian daun (72%), dengan tipe kerusakan utama adalah perubahan warna daun (53%) dan tingkat keparahan terbesar berkisar antara 01-19% (64%).  Identifikasi kerusakan menunjukkan bahwa kerusakan terutama terjadi pada bagian daun, dengan tipe kerusakan dominan berupa perubahan warna. Tingkat keparahan kerusakan cenderung ringan hingga sedang, dengan persentase kerusakan sebesar 01-19%. Penelitian ini memiliki manfaat signifikan dalam memberikan informasi mengenai kondisi kesehatan dan kerusakan tanaman obat non-endemik, yang dapat digunakan sebagai dasar untuk merancang strategi pengendalian dan pencegahan kerusakan tanaman. Upaya-upaya ini penting untuk menjaga keberlanjutan kebun raya dan ketersediaan sumber daya tanaman obat yang berkelanjutan.
ANALISIS SIFAT FISIK TANAH BERDASARKAN TUTUPAN LAHAN DI KAWASAN HUTAN DENGAN TUJUAN KHUSUS UNIVERSITAS LAMBUNG MANGKURAT Pani Akbar; Eny Dwi Pujawati; Ahmad Yamani
Jurnal Sylva Scienteae Vol 9, No 4 (2026): Jurnal Sylva Scienteae Vol 9 No 4 Edisi Agustus 2026
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jss.v9i4.20710

Abstract

Penelitian ini bertujuan untuk menganalisis pengaruh tutupan lahan terhadap sifat fisik tanah di Kawasan Hutan Dengan Tujuan Khusus (KHDTK) Universitas Lambung Mangkurat. Studi ini mencakup tiga jenis tutupan lahan, yaitu hutan sekunder, semak belukar, dan lahan terbuka. Pengumpulan data dilakukan melalui metode purposive sampling dengan uji sifat fisik tanah yang mencakup analisis tekstur, struktur, Bulk Density, Particle Density, porositas, kadar air, dan warna tanah. Hasil penelitian menunjukkan bahwa sifat fisik tanah pada hutan sekunder memiliki tekstur lempung liat berpasir dengan struktur granular, Bulk Density rata-rata 0,98 g/cm³, Particle Density 2,78 g/cm³, porositas 64,64%, kadar air 33,16%, dan warna tanah coklat kemerahan tua. Pada semak belukar, tekstur tanah serupa tetapi dengan Bulk Density 1,04 g/cm³, Particle Density 2,76 g/cm³, porositas 62,07%, kadar air 25,30%, dan warna tanah coklat kemerahan. Lahan terbuka menunjukkan degradasi fisik tanah yang signifikan, dengan tekstur pasir berlempung, Bulk Density 1,47 g/cm³, Particle Density 2,86 g/cm³, porositas 48,36%, kadar air 11,20%, dan warna coklat muda kemerahan.
STUDI POPULASI DAN DENSITAS BEKANTAN (Nasalis larvatus) DI KAWASAN CAGAR ALAM GUNUNG KENTAWAN KECAMATAN LOKSADO KABUPATEN HULU SUNGAI SELATAN Muhammad Imbron; Ahmad Yamani; Badaruddin Badaruddin
Jurnal Sylva Scienteae Vol 9, No 4 (2026): Jurnal Sylva Scienteae Vol 9 No 4 Edisi Agustus 2026
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jss.v9i4.20707

Abstract

Bekantan adalah salah satu dari jenis primata dengan keberadaanya populasi menyeluruh di seluruh pulau Kalimantan. Tujuan penelitian ini adalah mengetahui populasi saat ini ada berapa ekor bekantan yang berada di Kawasan Cagar Alam Gunung Kentawan, menganalisa berapa jumlah nisbah kelamin (sex ratio) bekantan di Kawasan Cagar Alam Gunung Kentawan, menganalisis berapa densitas atau kepadatan bekantan dikawasan Cagar Alam Gunung Kentawan, mengetahui faktor yang mempengaruhi dari trend atau naik turunnya pada populasi bekantan yang berada di Kawasan Cagar Alam Gunung Kentawan.
Co-Authors Abdi Fithria Agustina R., Arfa Annisa Anindya Arfa Agustina Rezekiah Ari Wahyudi Ashari, Fahrizal Asmaul Zanah Badaruddin Badaruddin Damaris Payung Diana Febriani Dodik Jatmika Eben Haezer Ginting Eny Dwi Pujawati Fitri Kurnia Wulandari Gt Syeransyah Rudy Gusti AR Thamrin Gusti Seransyah Rudy Iim Fahimah Kissinger Kissinger Kissinger Kissinger Mahyudiansyah, Mahyudiansyah Muhammad Imbron Muhayyah, Rina Normela Rachmawati Oktaviani, Fajar Nor Pani Akbar Rina Kanti Rina Muhayyah Rosidah Rosidah R. Radam Rudy, Gusti Seransyah Sampurnawati Sampurnawati Setia Budi Peran siti rahmah Sunarno Basuki Syam’ani D Ali Tazki Amalia Thamrin, Gusti AR Wachid Pramono Yashinta Nur Shiba Yusanto Nugroho Yusuf Yuliadi