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All Journal Otus Education Jurnal Biologi dan Pendidikan Biologi Bioindikator: Jurnal Biologi dan Pendidikan Biologi
Alfian Pujian Hadi
Doktoral Ilmu Pertanian, Fakultas Pertanian, Universitas Brawijaya, Malang, Jawa Timur, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Education Energy Environmental Science Immunology & microbiology Medicine & Pharmacology

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Kajian Alternatif Proyeksi Jaringan Jalan Hutan untuk Perencanaan Pemanenan Kayu di PT Inhutani I Labanan, Propinsi Jawa Barat Muamar Kadafin; Alfian Pujian Hadi; Akbar Al Imam
Otus Education: Jurnal Biologi dan Pendidikan Biologi Vol. 2 No. 1 (2024): April 2024
Publisher : Otus Edu Journal Prodi Tadris IPA Biologi UIN Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62588/otusedu.2024.v2i1.0100

Abstract

Forests are one of the natural resources that can be utilized in the form of both wood and non-wood forest products. Harvesting carried out to extract wood results in negative impacts such as soil damage and damage to standing stands. The negative impacts of wood harvesting can be reduced by planning in advance, such as creating a forest road network. The research was carried out in the mahogany room, utilization division, forest management department, while the assessment of the forest road network used the case study of PT Inhutani I Lebanan. The aim of the research is to examine the planning and selection of the best alternative forest road network for harvesting wood using multi-criteria decision making techniques. The research will be carried out in March 2023. The research stage begins with sketching the road network; assess road networks using economic, ecological and technical criteria; as well as conducting literature studies from various sources. The research results show that there are six alternative forest road networks for harvesting wood. This is based on forest road network assessment parameters that the best alternative road network in the PT Inhutani I Labanan road scheme is the 6th road network alternative. Sustainable management of forest resources can be achieved through a well-planned road network. The highest total utility value (rank 1) is found on the 6th road network which is the best alternative forest road network to be implemented at PT Inhutani Labanan I both in terms of technical aspects, ecological aspects and economic aspects.
Analisis Limbah Tambang Emas Konvensional Di Kecamatan Sekotong Kabupaten Lombok Barat Lalu Kinayung Purbajati; Anis Syakiratur Rizki; Heri Murtawan; Samsul Bahri; Alfian Pujian Hadi
Bioindikator: Jurnal Biologi dan Pendidikan Biologi Vol. 1 No. 2 (2024): Desember 2024
Publisher : Yayasan Tajuk Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.71024/bioindikator/2024/v1i2/78

Abstract

Gold mining in Sekotong District has raised concerns among the government. This gold mining should not be allowed to continue continuously, because it can disrupt the continuity of the ecosystem. One of the main problems is the disposal of mining waste which has damaged the environment. This article was written using the library research method, namely by codifying scientific sources from various journals and articles with the same data and then combining them to obtain information about the impact of gold mining waste in the Sekotong area, West Lombok, West Nusa Tenggara. The wide distribution of mercury and cyanide is due to the fact that these two chemicals are very efficient in processing gold ore. However, both of them are also chemicals that are very dangerous for the environment. In addition, the distribution of heavy metals resulting from waste from traditional gold mining is greatly influenced by soil conditions, such as temperature and rock disintegration. Various biological and microbiological processes can concentrate metals in the soil, and heavy metal contamination usually accumulates at depths of up to 75 cm above the soil surface. Mercury and manganese waste resulting from gold processing can enter river ecosystems, dissolve in the water, and sink to the bottom of the water, where they will accumulate in sediment. This waste not only settles in sediment, but some of it will also enter the body tissues of biota that live in river waters.
Co-Authors Akbar Al Imam Anis Syakiratur Rizki Heri Murtawan Lalu Kinayung Purbajati Muamar Kadafin Samsul Bahri