Judul: Analisis Kelayakan Usaha dan Strategi Pengelolaan Agroforestri (Studi Kasus KTH Margo Rukun II Provinsi Lampung)
Abstrak: Kabupaten Tanggamus memiliki potensi untuk ditanami Multipurpose Tree Species (MPTS) yang dapat memberikan nilai ekonomi dan ekologi terhadap masyarakat. Tujuan penelitian ini yaitu mengidentifikasi pengelolaan HHBK pada lahan agroforestri, menganalisis kelayakan usaha agroforestri, dan merancang strategi pengelolaan usaha agroforestri tingkat Kelompok Tani Hutan (KTH). Pengambilan data dilakukan dengan metode wawancara dan Focus Group Discussion (FGD). Berdasarkan perhitungan analisis finansial yang dilakukan menggunakan metode cost-benefit analysis, usaha dengan pola agroforestri kopi robusta, cabai rawit, alpukat, pisang, lada, kacang merah dan nangka merupakan usaha yang menguntungkan. Usaha agroforestri KTH Margo Rukun II lebih sensitif terhadap penurunan pendapatan daripada kenaikan biaya. Berdasarkan hasil evaluasi analisis faktor internal dan eksternal menggunakan analisis Strength Weakness Opportunity Threat (SWOT), KTH Margo Rukun II berada pada posisi kuadran I (strategi S-O) yang dimana posisi tersebut menunjukan organisasi memiliki kondisi yang baik untuk melanjutkan usaha., Tanggamus Regency has the potential to be planted with MPTS which can provide economic and ecological value to the community. The purpose of this research is to identify the management of NTFPs on agroforestry land, to analyze the feasibility of agroforestry businesses, and to design KTH-level agroforestry business management strategies. Data collection was carried out using interviews and FGD methods. Based on financial analysis calculations carried out using the cost-benefit analysis method, a business with an agroforestry pattern of robusta coffee, cayenne pepper, avocado, banana, pepper, red bean, and jackfruit is a profitable business. KTH Margo Rukun II agroforestry business is more sensitive to decreased income than to increased costs. Based on the results of the evaluation of internal and external factor analysis using SWOT analysis, KTH Margo Rukun II is in quadrant I (S-O strategy) where this position shows that the organization has good conditions to continue the business.
Keyword: Agroforestri, Analisi finansial, Analisis SWOT, Hasil Hutan Bukan Kayu, Kelompok Tani Hutan

Judul: Comparative Feasibility Study of Rubber Agroforestry Business in Pelaihari Unit, Tanah Laut Regency, South Kalimantan
Abstrak: Pembangunan agroforestri sudah cukup lama dilaksanakan di Indonesia. Namun, sampai saat ini masih banyak tantangan pengelolaannya, salah satunya informasi skema agroforestri terbaik pada hutan tanaman industri yang masih terbatas. Pemanfaatan hutan karet di Unit Pelaihari Kabupaten Tanah Laut, Kalimantan Selatan milik PT. Inhutani III dikelola oleh dua perusahaan dengan skema agroforestri. Untuk itu, penelitian ini bertujuan menganalisis kelayakan finansial skema agroforestri yang telah dipraktikkan tersebut. Berdasarkan perhitungan analisis finansial, pengelolaan agroforestri karet, baik dengan tanaman sela singkong ataupun jagung adalah layak diusahakan. Namun, pada perbandingan per hektar usaha agroforestri karet, tanaman singkong memberikan nilai NPV, IRR, dan jangka waktu pengembalian (payback period) yang lebih baik dibanding tanaman jagung. Untuk itu, skema agroforestri karet layak diusahakan untuk pengembangan usaha, terutama dengan tanaman sela singkong. Manfaat yang didapat dari tumpangsari tidak hanya sebagai tanaman menghasilkan disaat tanaman utama belum menghasilkan, tetapi dapat meningkatkan pendapatan maksimum., Agroforestry development has been implemented in Indonesia for quite a long time. However, there are still many management challenges, one is the lack of information on the best agroforestry schemes in industrial plantation forests. PT. Inhutani III, in the Pelaihari Unit of Tanah Laut Regency, South Kalimantan, cooperates with two companies to utilize rubber forests under agroforestry schemes. In response, this study aimed to analyze the financial feasibility of the agroforestry scheme that has been practiced. Based on financial analysis, the management of rubber agroforestry with cassava or corn intercropping was feasible. However, in the ratio per hectare of rubber agroforestry business, cassava crops provided better NPV, IRR, and payback period values than corn crops. For this reason, the rubber agroforestry scheme is worth striving for business development, especially with cassava intercropping. The benefits derived from intercropping are not only as a yielding crop when the main crop is not yet harvested but can increase maximum income.
Keyword: agroforestry, financial analysis, plantation forest

Judul: Approximation of the Median of Poisson Distribution Using the Relation of Poisson-Gamma Distribution
Abstrak: A major drawback of median is that median cannot usually be defined in closed form, even in the cases where their distribution functions are known. This study gives an approximation of the closed form for the median of the Poisson distribution by using the relation of Poisson-Gamma distribution. The approximation uses elementary techniques based on the monotonicity of certain sequences involving tail probabilities of the Poisson distribution and the Central Limit Theorem. Furthermore, a closed form expression for the mean absolute deviation 􀜧|􀜰􀰒 􀵆 􀜯􀝁􀝀􁈺􀜰􀰒􁈻| is also studied. The median is relevant because of the fact that it minimizes the mean absolute deviation of a Poisson random variable (􀜰􀰒􁈻 by considering median as central tendency.
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