Judul: Pendugaan Cadangan Karbon dan Serapan CO2 pada Tegakan Taman Hutan Kota Muhammad Sabki di Provinsi Jambi
Abstrak: Hutan memiliki peran penting dalam mitigasi perubahan iklim dan pemanasan global. Hutan menyerap CO2 kemudian menyimpannya dalam bentuk cadangan karbon. Penelitian ini bertujuan untuk mengestimasi kerapatan tegakan, biomassa, cadangan karbon dan serapan CO2 di Taman Hutan Kota Muhammad Sabki (THKMS), Jambi. Parameter tegakan THKMS (yaitu, jenis pohon, diameter, dan tinggi total) diukur dengan membuat 42 petak contoh lingkaran (masing-masing berukuran 0,04 ha) secara sistematis dengan jarak 38 × 38 m. Pendugaan nilai dugaan tegakan dilakukan dengan menggunakan metode stratifikasi dan tanpa stratifikasi berdasarkan zona penggunaan lahan untuk wisata. Hasil penelitian menunjukkan bahwa pendugaan dengan stratifikasi menghasilkan sampling error (SE) yang lebih kecil. Rata-rata jumlah pohon, lbds, biomassa, cadangan karbon, serapan CO2 tegakan THKMS adalah 706 pohon/ha, 21,65 m2/ha, 145,87 ton/ha, 68,56 ton/ha dan 249,04 ton/ha dengan total 706 pohon. pohon/ha, 21,65 m2/ha, 145,87 ton/ha, 68,56 ton/ha dan 249,04 ton/ha., Forest has an important role in the mitigation of climate change and global warming. Forest absorbs CO2 then store it in a form of carbon stock. This study aimed to estimate stand density, biomass, carbon stock and CO2 sequestration in Muhammad Sabki Urban Forest Park (MSUFP), Jambi. The MSUFP stand attributes (i.e., tree species, diameter, and total height) were measured by establishing 42 circular sample plots (each measuring 0.04 ha) in a systematic way with a distance of 38 × 38 m. The estimation of stand attributes was conducted by using stratification and without stratification method based on a land usage zone for tourism. The results showed that the estimation with stratification resulted in a smaller sampling error (SE). The average number of trees, basal area, biomass, carbon stock, CO2 absorption of the MSUFP stands were 706 trees/ha, 21.65 m2/ha, 145.87 tons/ha, 68.56 tons/ha and 249.04 tons/ha with a total of 706 trees/ha, 21.65 m2/ha, 145.87 tons/ha, 68.56 tons/ha and 249.04 tons/ha, respectively.
Keyword: kerapatan tegakan, biomassa, karbon, karbon dioksida, THKMS

Judul: Pendugaan Biomassa, Karbon dan Serapan Karbon Dioksida Empat Jenis Tegakan di Hutan Pendidikan Gunung Walat
Abstrak: Hutan memiliki peranan penting dalam pengendalian pemanasan global dengan menyerap karbon dioksida (CO2) di atmosfer dan menyimpan karbon dalam bentuk biomassa hutan. Penelitian ini bertujuan menduga biomassa, simpanan karbon dan serapan karbon dioksida (CO2) pada empat jenis tegakan yakni agathis, puspa, meranti, dan kayu afrika di Hutan Pendidikan Gunung Walat. Pengukuran di lapangan berupa diameter pada semai, pancang, tiang, dan pohon. Plot contoh berbentuk persegi dengan ukuran 20 m × 20 m yang memiliki subplot-subplot untuk pengukuran semai, pancang, tiang, dan pohon. Analisis data pendugaan biomassa menggunakan persamaan alometrik biomassa. Kandungan karbon dan serapan karbon dioksida diperoleh dari konversi nilai biomassa. Hasil penelitian menunjukkan total biomassa agathis 14.646,77 ton/ha, biomassa puspa 6.436,02 ton/ha, biomassa meranti 91,31 ton/ha, dan biomassa kayu afrika 66,28 ton/ha. Karbon yang tersimpan pada agathis 6.883,98 ton/ha, puspa 3.024,93 ton/ha, meranti 42,92 ton/ha, dan kayu afrika 31,15 ton/ha. Serapan karbon dioksida agathis sebesar 25.241,26 ton/ha, puspa 11.091,41 ton/ha, meranti 157,36 ton/ha, dan kayu afrika 114,23 ton/ha., Forests have an important role in controlling global warming by absorbing carbon dioxide in the atmosphere and storing carbon in the form of forest biomass. This study aims to estimate biomass, carbon storage, and carbon dioxide uptake (CO2) in four types of stands namely agathis, puspa, meranti, and African wood in Gunung Walat Educational Forest. Measurements in the field in the form of diameters at various growth rates. The sample plot is a square with a size of 20 m × 20 m which has subplots for measuring seedlings, saplings, poles, and trees. Analysis of the biomass estimation data using the biomass allometric equation. Carbon content and carbon dioxide uptake were obtained from the conversion of biomass values. The results showed that the total biomass of agathis was 14.646,77 tons/ha, puspa biomass 6.436,02 tons/ha, meranti biomass 91,31 tons/ha, and african wood biomass 66,28 tons/ha. Carbon stored in agathis 6.883,98 tons/ha, puspa 3.024,93 tons/ha, meranti 42,917 tons/ha, and african wood 31,153 tons/ha. Carbon dioxide absorption of agathis was 25.241,26 tons/ha, puspa 11.091,41 tons/ha, meranti 157,36 tons/ha and african wood 114,23 tons/ha.
Keyword: biomassa, Gunung Walat, Hutan Pendidikan, karbon, karbon dioksida

Judul: Studi Kasus Liver Neoplasia pada Anjing Shih Tzu
Abstrak: Liver neoplasia is the excessive and uncontrolled replication of hepatocytes that forms nodules visible in ultrasonography. The purpose of this study is to study and discuss the characteristic, diagnosis and treatment of liver neoplasm through the interpretation of ultrasonography and hematology in a Shih Tzu dog. Ultrasonography is conducted with a Chison Q8 ultrasound machine with a 5 to 7 MHz frequency convex probe on lateral recumbency. The blood cells, liver enzymes and nodules sizes were the main parameters in this study. The results in the period of three years from 2021 to 2023 were interpreted and supported with secondary data sources. The Shih Tzu dog is 14 years old in the year 2023 with a body weight of 5.21kg. No obvious clinical signs were observed during previous examinations. However, lethargy, vomiting and anorexia were recorded in its latest examination. Thrombocytosis, granulocytosis, high liver enzymes and hypoglycemia, which are some of the neoplastic clinical manifestations were also presented by this patient. Besides, liver neoplasm, spleen neoplasm and biliary sludge were the sonogram findings of this patient. The liver and spleen neoplasm was observed stable, while the biliary sludge volume fluctuated. The treatment strategy recorded is Ondansetron, Samylin®, Ornipural and Ursodeoxycholic acid.
Keyword: Blood biochemistry profile, Hematology, Liver Neoplasia, Shih Tzu, Ultrasonography