No abstract

Knowledge of natural disasters is a science that everyone should have. This led the government to take policy by incorporating disaster mitigation materials into the school learning curriculum.  Natural disaster mitigation modules based on science, technology, engineering and mathematics (STEM) are considered to support learning that can encourage students to be active, creative, innovative in doing group work and completing experimental projects that can solve real problems because it contains STEM-based worksheets to help students to understand the material more quickly. The purpose of this study was to determine the process of developing a STEM-based natural disaster mitigation learning module and the learning outcomes of class XI SMA / MA students in the city of Banda Aceh. The research method used in this research is research and development with a development model of analysis, design, development, implementation, and evaluation (ADDIE). In this study, several data collection was carried out starting with the needs analysis data, STEM based module validation data, response data, and student learning outcomes. The validation of module evaluation used Aiken's V test. T-test results for the experimental class showed a significant difference in the student learning outcomes of SMA/ MA in Banda Aceh after learning natural disaster mitigation using STEM-based modules.

Sigli City Sub District is one of the Sub Districts affected by the 2004 tsunami. At that time, the community did not understand the danger of the tsunami and did not understand how to save themselves. The purpose of this study was to identify and to map out effective tsunami evacuation locations and routes in Sigli City Sub District using Dijkstra algorithm. Primary data (tsunami inundation) for this study were obtained from interviews with community representatives involving 32 people in 16 villages. Administrative map, topographic map, population density map, contour map and land use map (secondary data) were obtained from relevant institutions. The results of the study indicate that horizontal evacuation can be done through available paved road living the coastal area towads 4 recommended locations based on the physical feasibility of the land. For vertical evacuation, 24 buildings available in 7 villages can be recommended, on the condition that their structural feasibility and access standard are met.

Fungi mikoriza arbuskula (FMA) memiliki simbiosis mutualisme dengan lebih dari 80% spesies tumbuhan terestrial. Material pembawa yang sering dilaporkan efektif digunakan sebagai bahan pembawa inokulan FMA adalah zeolit. Akan tetapi, zeolit harganya lebih mahal dibandingkan material pembawa lain seperti pasir dan arang sekam. Upaya yang dapat dilakukan untuk perbanyakan spora dan mengurangi penggunaan zeolit yaitu mengombinasikan zeolit dengan material pembawa lain berbasis bahan baku lokal dan ekonomis. Penelitian ini menggunakan Rancangan Acak Kelompok (RAK) yang terdiri atas dua faktor (komposisi material pembawa dan jenis FMA) dengan pola 4×2 dan empat ulangan. Hasil penelitian ini menunjukkan bahwa material zeolit + pasir (1:1) dan zeolit + tanah (1:1) sama efektifnya dengan zeolit 100% untuk perbanyakan spora Acaulospora tuberculata dan Gigaspora gigantea. A. tuberculata menunjukkan tingkat kolonisasi akar (62.68%) lebih tinggi dibandingkan G. gigantea (50.80%) pada semua material pembawa. Tidak ada interaksi yang signifikan antara jenis material pembawa dan jenis spora FMA terhadap jumlah spora dan infeksi akar. Kata kunci -material pembawa -mikoriza arbuskula -perbanyakan -simbiosis

Abstrak. Tujuan penelitin yaitu untuk mengetahui perubahan sifat kimia tanah akibat pemberian jenis pupuk dan penggunaan varietas kacang tanah serta interaksi antara perlakuan jenis pupuk dan varietas kacang tanah pada tanah Vertik Kambisol.. Penelitian ini telah dilaksanakan di Muara Tiga dan di Laboratorium Penelitian Tanah dan Tanaman Fakultas Pertanian Universitas Syiah Kuala. Waktu pelaksanaan dimulai dari bulan juli 2016-oktober 2016. Rancangan percobaan yang digunakan dalam penelitian ini adalah Rancangan Acak Kelompok (RAK) pola faktorial 4 x 5 dengan 3 ulangan. Adapun faktor yang diteliti yaitu jenis pupuk (j) varietas kacang tanah (V). Peubah yang diamati meliputi pH H2O, C-organik, N-total. Hasil penelitian menunjukkan aplikasi jenis pupuk berpengaruh nyata terhadap % C-organik tanah umur 45 hari setelah tanah (HST) kacang tanah. Hasil penelitian menunjukkan bahwa beberapa jenis pupuk berpengaruh untuk meningkatkan kesuburan tanah Vertik Kambisol. Nilai tertinggi untuk C-organik adalah 1,74% (pupuk kandang 4,68 kg plot-1+ NPK 0,117 kg plot-1 + kompos 4,68 kg plot-1) pada umur 45 HST kacang tanah. Hasil analisis perlakuan beberapa varietas kacang tanah tidak berpengaruh nyata terhadap pemberian perlakuan jenis pupuk serta tidak terdapat interaksi antara perlakuan jenis pupuk dan varietas kacang tanah terhadap pH H2O,    C-organik,  N total, pada tanah Vertik Kambisol.Changes in Soil Vertical Chemistry of Cambisol Due to the Provision of Peanut Fertilizers and Varieties (Arachis hypogaea L.) in Muara Tiga in District PidieAbstrack. The aim of the research was to determine changes in soil chemical properties due to the application of fertilizer types and the use of peanut varieties as well as interactions between fertilizer type treatment and peanut varieties on Vertical Cambisol soil. This research has been carried out in the Laweung area of Pidie Regency and at the Soil and Plant Research Laboratory of the Faculty of Agriculture, Syiah Kuala University. The implementation time starts from July 2016 to October 2016. The experimental design used in this study was a Randomized Block Design (RBD) 4 x 5 factorial pattern with 3 replications. The factors studied were the type of fertilizer (j) variety of peanut (V). The variables observed included pH H2O, C-organic, N-total. The results showed that the application of fertilizer types significantly affected% C soil organic age 45 days after soil (HST) peanuts. The results showed that several types of fertilizers had an effect on increasing Vertical soil fertility of cambisol. The highest value for C-organic is 1.74% (manure 4.68 kg plot-1 + NPK 0.117 kg plot-1 + compost 4.68 kg plot-1) at 45 HST of peanut. The results of the treatment analysis of several peanut varieties did not significantly affect the administration of fertilizer type and there was no interaction between the treatment of fertilizer types and peanut varieties on pH H2O, organic C, total N, on cambisol Vertical soil