Judul: Pendugaan Potensi Biomassa, Karbon, dan Serapan CO2 pada Tumbuhan Bawah di Hutan Pendidikan Gunung Walat (HPGW), Sukabumi
Abstrak: Tumbuhan bawah adalah suatu jenis vegetasi dasar yang terdapat di bawah tegakan hutan meliputi rerumputan, herba, perdu, dan paku-pakuan. HPGW merupakan hutan tanaman yang telah berubah menjadi hutan alam, sehingga potensi tumbuhan bawah di lokasi tersebut melimpah. Penelitian bertujuan untuk mengetahui potensi biomassa dan cadangan karbon pada tumbuhan bawah serta mengetahui potensinya dalam menyerap karbon dioksida (CO2). Teknik pengambilan data menggunakan metode simple random sampling, dimana plot sampel ditempatkan secara acak tanpa memperhatikan strata yang ada dalam populasi. Plot contoh yang digunakan adalah persegi dengan ukuran (2 × 2) m, total plot contoh yang digunakan dalam penelitian ini adalah 83 plot. Pengambilan data dilakukan di lapangan dan di laboratorium. Pengambilan data lapangan menggunakan metode destructive sampling (memanen seluruh bagian tumbuhan bawah, kecuali akar). Pengambilan data di laboratorium menggunakan oven dengan suhu 105°C dalam waktu 24 jam. Hasil penelitian menunjukkan bahwa rata-rata potensi biomassa, karbon, dan serapan karbon dioksida pada tumbuhan bawah berturut-turut yaitu sebesar 1,16 ton ha-1, 0,55 ton ha-1, dan 2,01 ton ha-1., The undergrowth is a type of base vegetation found under forest stands including grasses, herbs, shrubs, and ferns. HPGW is a plantation forest that has changed into a natural forest, so the potential for undergrowth in that location is very abundant. This study aims to determine the potential for biomass and carbon stock stored in understory plants and determine their potential to absorb carbon dioxide (CO2). The data collection technique used a simple random sampling method, where the sample plots were placed randomly without regard to the existing strata in the population. The sample plot used is a square with a size of (2 × 2) m, the total sample plot used in this study is 83 samples. Data collection is carried out on the ground and in the laboratory. Data collection in the field used the destructive sampling method (harvesting all parts of the understory, except for the roots). Data were collected in the laboratory using an oven with a temperature of 105°C for 24 hours. The result showed that the average potential for biomass, carbon stock, and carbon dioxide absorption in the undergrowth was 1,16 ton ha-1, 055 ton ha-1, and 2,01 ton ha 1, respectively.
Keyword: biomass, carbon dioxide, carbon stock, HPGW, undergrowth

Judul: Pendugaan Potensi Volume, Biomassa, dan Cadangan Karbon Tegakan di Hutan Pendidikan Gunung Walat Sukabumi Jawa Barat
Abstrak: The current global warming is caused by the increasing of greenhouse gases emitted to the Earth’s atmosphere. Greenhouse gases that affect directly is CO2 (carbon dioxide). If there are too many concentration of CO2 in the atmosphere, it will cause warmer temperature. Increasing the average temperature of Earth's atmosphere over the years led to climate change. The effort to solve climate change is conducting mitigation. One of the sectors that play a role in climate change mitigation is forestry sector. Forest able to absorb the excess carbon in the atmosphere and store it in the form of biomass in various parts of the plant (particularly timber) through the photosynthesis process. One of Indonesia's forests which has the potential carbon stocks is Gunung Walat University Forest (GWUF). This research aims to estimate the potential of volume, biomass, and carbon stocks in the forest which can be use as a basis for making the forest planning, management, and protection. Field data collected at the stands of Agathis lorantifolia (agathis), Pinus merkusii (pine), Schima wallichii (puspa), Maesopsis eminii (kayu afrika), and the others stand with the circle sample plot sized 0.1 ha. The stands volume estimated by using volume table equation and the biomass estimation by allometric models. Carbon stocks estimation obtained from biomass value that is converted to the carbon fraction (0.47). Data analysis in this research uses two methods, estimation without stratification through systematic sampling with random start and estimation with stratification through stratified sampling. Estimation with stratification is performed in two ways, stratification based on potential value and stratification based on the vegetation type. The result of potential estimation with stratification in GWUF more accurate then the method of estimation without stratification. The average volume of estimation with stratification based on its potential value is 399.45 m3/ha and the total volume is 142,832.56 m3; the average and total of biomass potential are 202.37 tons/ha and 72,363.70 tons; and then the of average of carbon stocks is 95.12 tons/ha and the total carbon stocks is 34,085.51 tons. While the estimation results with stratification based on the vegetation type shows the average and total volume are 398.29 m3/ha and 142,416.26 m3; the average of biomass potential is 202.82 tons/ha and the total of biomass potential is 72,522.35 tons; with average of carbon stocks is 95.32 tons/ha and the total carbon stocks is 34,085.51 tons.
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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