Agriculture, Plantation and Forestry Commodities are the main sectors supporting household daily needs and people's income for improving the economy. District of Marangkayu is located in Kutai Kartanegara area, East Kalimantan Province, where geographical condition consists of the terrain of hilly steeps surrounding the lake of Kutai Kartanegara. The geographical contours make the sector of agriculture, plantation and forestry the people's primary choice to meet the needs of household as well as increase the standard of economy of the people. In order to maintain the stability of price and production of agricultural commodities, Commodity Information System is required to provide information of the location, coordinate of positions, area of production, as well as presenting information of prices, price fluctuations and changes, along with a display of information over the accumulation of agricultural commodity production of the Kutai Kartanegara area, with additional features of appropriate distribution and production thereof. Therefore, it is necessary to develop the Web-Based Geographic Information System (GIS) for Agricultural Commodity, Plantation and Forestry of Marangkayu Area. GIS application is built using the Rapid Application Development (RAD) method, which consists of the phase of Requirements planning, User design phase, Construction phase and Cut-over phase. Database for the implementation uses PostgreSQL and PostGIS extensions. Programming language uses PHP, JavaScript, and HTML. The interface implementation is built using Bootstrap. The testing of the application uses the Black box testing method. The results of the test show that the Web-Based GIS Application has met the needs of the requirement system and the problems.

<p><span lang="EN">The growth-site quality is one of the essential information needed to support sustainable forest management particularly in forestry planning. This paper describes the development of a site-quality class of Nypa vegetation by considering the biological and physical factors. The main objective of this study is to develop a discriminant model and to find out major factors that may be used to predict the quality of Nypa growth-sites.</span><span lang="EN">The model was developed using variables either measured on UAV images or from field measurement, namely soil texture (X₁), water salinity (X₂), water pH (X₃), crown closure (X₄) and stand density (N) measured on the UAV image (X₅). The study found that the site quality of Nypa could be indicated by the variation of its biomass content. Then, it was concluded that the major factors that affect the site quality are the soil texture (X₁),</span><span lang="EN">water salinity (X₂),</span><span lang="EN">and water pH (X₃</span>) <span lang="EN">with 78.3% of overall accuracy.</span></p>

Pemetaan esktraterestris dengan teknologi satelit penginderaan jauh memberikan kemudahan klasifikasi land use land cover (LULC) pada area yang luas secara multitemporal dengan keunggulan meminimalisir waktu dan biaya. Penelitian ini bertujuan untuk mengkaji updating peta status tutupan lahan mangrove berupa sebaran, luasan, dan tingkat kerapatan kanopi menggunakan algoritma machine learning dan indeks vegetasi di wilayah pesisir Kecamatan Pulau Derawan Kabupaten Berau sebagai daerah pendukung program blue carbon. Area studi penelitian ini menggunakan data Citra Sentinel 2B multitemporal untuk memperoleh informasi peta LULC, perubahan perkembangan lahan, dan ekosistem mangrove. Hasil pemetaan LULC menggunakan reflektan multispektral Sentinel menunjukkan akurasi minimum pada tingkat OA = 81% dan kappa = 2.00. Adapun  tingkat kerapatan hasil algoritma GNDVI keseluruhan dengan nilai kerapatan berkisar antara 1 - 9 Nilai tersebut dibagi kedalam 1 kelas non vegetasi (≤ 3) dan 4 kelas kerapatan vegetasi yang bervariasi dengan status tingkat kerapatan jarang (≤ 5), sedang (≤ 7), lebat (≤ 8), dan sangat lebat (≤ 9). Perkembangan DUDI (Dunia Usaha dan Dunia Industri) dalam sektor perkebunan maupun tambak di Kecamatan Pulau Derawan membuat perubahan signifikan terhadap LULC dan sebaran mangrove. Dari tahun 2018 hingga 2022, terdapat 15.21% lahan mangrove menjadi lahan tanaman dan lahan basah, 6.25% lahan tanaman dan 8.30% lahan basah menjadi lahan kering, 34.24% lahan kering menjadi lahan tanaman, sedangkan lahan terbangun mengalami kenaikan 114.57%. Penurunan yang luar biasa dari hutan mangrove dapat terjadi di tanah pedalaman sepanjang wilayah pesisir yang dikonversi menjadi lahan perkebunan sawit.

Jeneberang watershed is one of the watersheds in the MAMMINASATA area (Maros, Makassar, Sungguminasa and Takalar). The watershed, upstream, is now in a critical condition. This study aims to identify and map land use patterns, carbon stock emissions, both in the present condition and after rehabilitation condition. The data and information used in this research are Landsat 7 ETM+ in 2006 and 2010, the Jeneberang watershed boundary map, critical land map, forest area map, rainfall data, population data, and land capability class map. The method used is the interpretation of land use or land cover, biomass calculation, and analysis with REDD ABACUS. The results showed that land use was dominated by plantations and then followed by low density forest, agricultural dry land, rice fields, water bodies, plantation forests, vacant land, shrubs, settlements, high density forests, and savannas. The direction of land cover/land use that can increase carbon sequestration is the conversion of barren land, shrubs and savannas into plantation forests and agroforestry. Potential carbon stocks for plantations, dry land agriculture and rice fields will increase to 2.295.626,32 tons in 2026.

Jamur tiram coklat (Pleurotus cystidiosus L) tudung buah berwarna coklat, teksturnya tebal, begizi tinggi, berkhasiat obat.Prospek yang baik untuk dikembangkan, namun ketersediaan bibit unggul susah didapatkan. Permasalahan dalam pembuatan biakan murni (F0) dengan media PDA adalah terkontaminasi dengan organisme lain. Penelitian ini membuat bibit biakan murni jamur P. cystidiosus L dengan media campuran jagung dan dedak dan dengan media PDA.  Tujuan penelitian ini untuk  mengetahui persentase tumbuh dan laju pertumbuhan miselium jamur P. cystidiosus L pada media campuran jagung dan dedak dan media PDA. Prosedur biakan murni (FO): penyiapan media, sterilisasi, inokulasi, inkubasi, pengumpulan dan perhitungan data. Hasil penelitian: (1) Persentase  tumbuh miselium jamur P. cystidiosus L dengan  media campuran jagung dan dedak sebesar 100%, media PDA sebesar 60% (2) Laju pertumbuhan miselium jamur P. cystidiosus L pada media campuran jagung dan dedak lebih rendah dari media PDA, namun demikian fakta ini dapat menjadi petunjuk bahwa tahapan pembuatan bibit biakan murni (F0) dapat ditumbuhkan langsung pada  media biji-bijian seperti campuran jagung dan dedak tanpa melalui media PDA.