Judul: Estimation of Vegetation Density Using NDVI and  Carbon Stock in the Core Zone of Gunung Halimun Salak National Park, Estimation of Vegetation Density Using NDVI and  Carbon Stock in the Core Zone of Gunung Halimun Salak National Park
Abstrak: Increasing concentrations of greenhouse gas emissions causes climate change and global warming. Gunung Halimun Salak National Park (GHSNP) potentially mitigate CO2 emissions change by increasing carbon stocks. This study aimed to estimate vegetation density using the Normalized Difference Vegetation Index (NDVI), biomass and aboveground carbon stocks, as well as to analyze the relationship of NDVI with vegetation diversity and carbon stocks in the core zone of GHSNP. The method used was vegetation analysis and carbon estimation using allometric and destructive testing for seedling and understory levels. The total plots were 15 (a plot size of 50 × 50 m). NDVI was categorized into three classes, specifically class 1 (0,147 – 0,276), class 2 (0,276 – 0,321), and class 3 (0,321 – 0,493). The core zone of GHSNP consists of 82 plant species from 53 families. The most families found were Euphorbiaceae, Lauraceae, Moraceae, Rubiaceae, and Urticaceae. The research location was dominated by african wood (Maesopsis eminii). The average biomass and carbon concentrations based on density class were 124,46 ton/ha dan 58,50 ton/ha, respectively. Carbon concentration strongly correlated with basal area (r = 68,9%). NDVI values had a positive correlation and can be used to estimate species abundance, tree density, Shannon-Wiener index, LBDS, and carbon concentration.
Keyword: aboveground carbon, conservation, FOLU Net Sink, vegetation index

Judul: Pendugaan Kerapatan Vegetasi Menggunakan NDVI dan Stok Karbon pada Zona Inti Taman Nasional Gunung Halimun Salak
Abstrak: Forestry and Other Land Uses (FOLU) merupakan sektor penting dalam strategi pembangunan rendah karbon dan ketahanan iklim. Kawasan konservasi Taman Nasional Gunung Halimun Salak (TNGHS) berpotensi dalam mitigasi perubahan iklim melalui peningkatan stok karbon. Penelitian ini bertujuan untuk menduga kerapatan vegetasi menggunakan Normalized Difference Vegetation Index (NDVI), menduga biomassa dan cadangan karbon, serta menganalisis hubungan NDVI dengan keanekaragaman vegetasi dan cadangan karbon di zona inti TNGHS. Metode yang digunakan yaitu analisis vegetasi dan pendugaan karbon menggunakan pendekatan alometrik dan destruktif untuk strata semai dan tumbuhan bawah. Plot yang dibangun berukuran 50 m × 50 m sebanyak 14 plot. Berdasarkan hasil analisis NDVI, kelas kerapatan terbagi menjadi kelas 1 (0,72 - 0,76) dan kelas 2 (0,77 - 0,85). Komposisi vegetasi di zona pemanfaatan TNGHS terdiri atas 36 jenis tumbuhan dari 16 famili. Famili terbanyak adalah Lauraceae, Fagaceae, dan Myrtaceae. Lokasi penelitian didominasi oleh Castanopsis acuminatissima. Rata-rata biomassa dan stok karbon yang diperoleh masing-masing sebesar 268,98 ton/ha dan 126,96 ton C/ha. Stok karbon memiliki korelasi tertinggi dengan LBDS (r = 84%). Nilai NDVI memiliki korelasi tertinggi dengan kerapatan pohon per ha., Forestry and Other Land Uses (FOLU) is an important sector in low-carbon development strategies and climate resilience. The Gunung Halimun Salak National Park (TNGHS) conservation area has the potential to mitigate climate change through increasing carbon stocks. This research aims to estimate vegetation density using the Normalized Difference Vegetation Index (NDVI), estimate biomass and carbon stocks, and analyze the relationship between NDVI and vegetation diversity and carbon stocks in the core zone of TNGHS. The methods used are vegetation analysis and carbon estimation using allometric and destructive approaches for seedling and understory strata. There were 14 established with the size 50 m × 50 m. Based on the results of NDVI analysis, density classes are divided into class 1 (0.72 - 0.76) and class 2 (0.77 - 0.85). The vegetation composition in the TNGHS core zone consists of 36 plant species from 16 families. The most abundant families are Lauraceae, Fagaceae, and Myrtaceae. The research location is dominated by Castanopsis acuminatissima. The average biomass and carbon concentrations obtained were 268.98 tonnes/ha and 126.96 tonnes C/ha respectively. Carbon concentration had the highest correlation with LBDS (r = 84%). NDVI values had the highest correlation with tree density per hectare.
Keyword: carbon stock, conservation area, FOLU Net Sink, Halimun Salak

Judul: Infeksi Virus Parainfluenza Pada Anjing
Abstrak: Virus parainfluenza anjing termasuk famili Paramyxoviridae, berbentuk pleomorf dengan ukuran bervariasi (bergaris tengah antara 100-500 nm), berpembungkus peka ether, berisi genom RNA dan secara serologis mempunyai kesamaan dengan virus SV-5 kera; dikenak sebagai salah satu kausa penting dari sindrom "kennel cough". Infeksinya dapat mengenai anjing semua umur yang belum pernah terinfeksi atau mendapatkan vaksinasi mengakibatkan gejala klinis ringan yang terbatas pada traktus respirasi atu infeksi yang secara klinis tidak memperlihatkan gejala nyata. Gejala klinis yang nampak setelah masa inkubasi (1-5 hari) terlewati berupa batuk yang tidak berat selama beberapa hari, berbagai tingkat tonsilitis dan pharyngitis dan kadang-kadang ditemukan kenaikan temperatur rektal antara 1-2 derajat C dari temperatur normal rat-rata. Anjing terinfeksi mengandung virus pada traktus respirasi bagian atas dan bawah serta limfonoduli sampai hari ke 9 setelah infeksi. Penyebaran virus antar anjing terjadi secara aerogen.
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