4 research outputs found

    STUDI KERAPATAN DAN PERUBAHAN TUTUPAN MANGROVE MENGGUNAKAN CITRA SATELIT DI KECAMATAN LASALEPA, KABUPATEN MUNA: (Study of Mangrove Density and Land Cover Change using Satellite Imagery in Lasalepa District, Muna Regency)

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    Studi kerapatan dan perubahan tutupan mangrove menggunakan citra satelit sangat penting dilakukan untuk mengidentifikasi kondisi ekosistem mangrove secara eksisting. Tujuan dari penelitian ini adalah untuk menganalisis kerapatan dan perubahan tutupan mangrove menggunakan Citra Satelit Landsat 8 OLI dan Sentinel-2A Level 1C di Kecamatan Lasalepa, Kabupaten Muna. Pengamatan kerapatan mangrove secara insitu menggunakan plot pengamatan 100m2. Analisis perubahan tutupan mangrove menggunakan citra satelit multitemporal (2015-2020) dengan metode klasifikasi supervised classification. Terdapat lima jenis mangrove pada empat stasiun pengamatan. Pada Stasiun I-III dengan nilai kerapatan mangrove: 1.480 pohon/ha, 1.320 pohon/ha, dan 1.440 pohon/ha terkategori Baik (Sedang), sedangkan Stasiun IV dengan nilai kerapatan 2.120 pohon/ha terkategori Baik (Sangat Padat). Berdasarkan hasil analisis citra, perubahan tutupan lahan dalam rentang tahun 2015-2020 menunjukkan adanya peningkatan luasan

    IMPLEMENTASI PRAKTIK KULIAH LAPANGAN MENGGUNAKAN MODEL PROJECT BASED LEARNING DALAM WUJUD KEGIATAN PENANAMAN MANGROVE DI KABUPATEN KOLAKA

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    Pembelajaran geografi sebagian besar membahas tentang fenomena alam yang mempengaruhi kehidupan manusia. Hal inilah yang membuat pembelajaran geografi tidak hanya terbatas dalam ruang kelas tetapi juga perlunya praktik kuliah lapangan. Pembelajaran tentang mangrove sangat penting untuk dikuasai, namun menguasai materi mangrove tidaklah cukup menyelamatkan mangrove dari ancaman dan kerusakan, perlu adanya tindakan-tindakan yang tepat salah satunya  dengan Penanaman Mangrove. Di beberapa daerah di Kolaka laju kerusakan mangrove cukup tinggi, sehingga kegiatan ini selain penting untuk menumbuhkan kepedulian kepada mahasiswa juga mengedukasi masyarakat akan pentingnya keberadaan mangrove. Kegiatan pengabdian ini menggunakan metode proyek dengan 5 tahapan yakni: 1) penyusunan panduan praktek kuliah lapangan, 2) penyiapan bibit, 3) penentuan lokasi penanaman, 4) penanaman mangrove dan 5) pelaporan hasil praktek. Hasil yang telah dicapai dari program kegiatan pengabdian ini adalah mahasiswa geografi bersama-sama dengan masyarakat Desa Tondowolio secara bergotong royong berhasil menanam 1000 bibit mangrove dan merasa antusias dalam menanam mangrove. Pencapaian ini merupakan hal yang paling penting dan menjadi prioritas untuk mendukung program-program yang dicanangkan oleh Universitas Sembilanbelas November Kolaka dan Pemerintah Daerah Kabupaten Kolaka

    Stok Karbon Organik Sedimen di Kawasan Ekosistem Mangrove Pesisir Kabupaten Kolaka Sulawesi Tenggara: Organic Carbon Stock in the Mangrove Ecosystem Area of Kolaka Coastal Line Southeast Sulawesi

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    Mangrove ecosystem can absorb and store carbon stock in their biomass and sediment. This ecosystem plays an important role in the carbon cycle. This study aimed to analyze the C-organic content and organic carbon stock of sediment, also CO2 absorption. The sediment sampling was conducted in the Kolaka Coastal line mangroves using a Peat Auger for 1 m of sediment depth. Then the sediment was separated into four layers. Then the sediment samples were oven dried at 50°C for 1 week for sediment bulk density analysis (SBD). The analysis of the C-organic content of sediment was done by the LOI method. The estimation of sediment carbon stock using sediment C-organic data and SBD data. The results showed that the highest average of C-organic content was in station 3 (4.12±0.15%). In the othher hand, the highest average of SBD was in station 1 (0.67±0.02 g cm-3). Overall, the total of sediment C-organic stock in station 1 was higher than other station (233.67±11.90 Mg C ha-1). The total capacity of CO2 absorption by sediment in the station 1 was also higher than other station (856.77±37.66 Mg CO2 ha-1). The sediment C-organic stock was influenced by C-organic content and SBD value

    Application of Non-classical Learning Model Using Ice Breaking and Animation Media on Mastery of Learning Concepts in Networks

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    This study aims to apply material mastery in non-classical learning models using ice breaking and animation media in order to minimize student boredom in learning. The difficulty of students is that understanding lecture material in non-classical learning is a challenge for educators. This research was conducted using an experimental method using a descriptive approach, using a posttest only control design. The sample in this study were students in semester V and VII of the chemistry education study program. The results showed that the application of non-classical learning models using Ice Breaking and animation media to Mastery of Non-classical Learning Concepts obtained the mean in the control class (not using Ice Breaking) cycles I and II respectively 62.61 and 78.56, while in the experimental class (using ice breaking) ) the mean of cycles I and II are 67.24 and 84 respectively. From the analysis results show that the application of non-classical learning models using ice breaking and animation media is better for mastery of non-classical learning concepts than non-classical learning models using animated videos without ice breaking activities, especially in identifying and dealing with misconceptions in learning and reducing student learning saturation during non-classical learning
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