Judul: Model Tinggi Tutupan Tajuk Hutan Dataran Rendah Menggunakan Data LiDAR dan Landsat 8 OLI (Studi kasus di PT Restorasi Ekosistem Indonesia).
Abstrak: Tutupan tajuk didefinisikan sebagai luas tanah yang ditutupi oleh proyeksi vertikal kanopi pohon. Model tinggi tutupan tajuk dapat dihitung menggunakan penginderaan jarak jauh berbasis data LiDAR (Light Detection and Ranging) dan citra Landsat 8 OLI. Tujuan penelitian ini adalah mendapatkan model tinggi tutupan tajuk dengan membandingkan tinggi tutupan tajuk standar dari data LiDAR dengan citra Landsat 8 OLI. Penelitian dilaksanakan di ekosistem hutan dataran rendah pada areal kerja PT Restorasi Ekosistem Indonesia, Sumatera Selatan. Model tinggi tutupan tajuk didapat menggunakan regresi linier berganda dengan persamaan CHM = 3.277 – 8.471 NDVI + 3.591 GRVI + 2.894 GNDVI + 7.405 DVI – 5.277 GDVI + 0.104. Nilai rata-rata tinggi tutupan tajuk prediksi pada seluruh kelas tinggi memiliki nilai underestimate terhadap data standar.
Keyword: LiDAR, Model Tinggi Tutupan Tajuk, Pencitraan Landsat 8 OLI

Judul: Estimation of Canopy Cover in Lowland Forest Using LiDAR and Landsat 8 OLI
Abstrak: Perencanaan dan pengelolaan pada ekosistem hutan dataran rendah diperlukan untuk menjaga fungsi dan peranannya di alam. Salah satu kegiatan yang dapat dilakukan yaitu pengamatan tutupan tajuk pohon yang bertujuan untuk menganalisis tingkat kerusakan hutan (deforestasi). Tujuan penelitian ini adalah mengidentifikasi tinggi tutupan tajuk pada ekosistem hutan dataran rendah dan membandingkan tinggi tutupan tajuk aktual dari data LiDAR dan pendugaan dari model prediksi Citra Landsat 8 OLI. Penelitian dilaksanakan di ekosistem hutan dataran rendah PT. Restorasi Ekosistem Indonesia (REKI) Sumatera Selatan. Tinggi tutupan tajuk aktual diperoleh dari Canopy Height Model dan prediksi dari model CHM = 102.58 - 1132.99 Band 3, R2 = 23.2 RMSE = 7.318%. Nilai rata-rata tinggi tutupan tajuk data prediksi pada kelas 1–3 (5 - 20m) mempunyai nilai lebih tinggi terhadap data aktual (overestimate). Sedangkan pada kelas 4–5 (20 - >25m) nilai rata-rata tinggi tutupan tajuk data prediksi mempunyai nilai yang lebih rendah terhadap data aktual (underestimate)., Information on canopy cover is required for good forest plannings and managements. Planning and management of lowland forest ecosystems is necessary to maintain their function and role in nature. One of the activities that can be carried out is the observation of tree canopy cover which aims to analyze the level of forest damage (deforestation). The purpose of this study was to identify the height of the canopy cover in the lowland forest ecosystem and to compare the actual canopy cover height from LiDAR data and estimates from the prediction model of Landsat 8 OLI imagery. The research was conducted in the lowland forest ecosystem of PT. Restorasi Ekosistem Indonesia (REKI) in South Sumatra. Actual crown cover height is obtained from Canopy Height Model whereas the prediction is from CHM model = 102.58 - 1132.99 Band 3, R2 = 23.2 RMSE = 7.318%. The average value of the predicted canopy cover data in class 1-3 (5-20m) has a higher value than the actual data (overestimate). Whereas in class 4–5 (20 -> 25m) the average value of the predicted data header cover height has a lower value than the actual data (underestimate)
Keyword: Canopy Height Model, Landsat OLI 8, LiDAR

Judul: Sarcosporidiasis in slaughter animals
Abstrak: Sarcocystis which belong to the generally occuring parasites for they are found almost all over the countries of the world. Infection of Sarcocystis usually throught inges- tion of feces or flesh of infected animals. The pathogenesis of Sarcosporidiasis is considered as benign but when the Sarcocystis die in a host, sarcocystin or sarcosporidin is liberated thereby which lead to condemnation of meat in the abattoir. Besides condemnation of meat, Sarcocystis also causes: loss of appetite, anemia, lameness, weakness in the lion, diarrhea, fever, pyrexia, paralysis, emaciation, neuro logical disturbances, etc. " Amprolium "at the rate of 100 mg/Kg body weight per day has been practiced for prevention or to minimize Sarco- sporidiasis. Treatment must be started during incubation period. Shedding of Sarcocystis sporocysts in the feces of carnivores is the key factor in the spread of Sarcocystis infection. Therefore, control efforts must be based primarily on measures designed to break the cycle of Sarcocystis.
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