Judul: Selecting Plant Species for Restoration based on Photosynthetic Parameters
Abstrak: Forest restoration is a process of ecosystem conditioning (soil, vegetation, and wildlife) to achieve the similar patterns and profiles to the previous conditions before they are disturbed, both in terms of species composition and structure, as well as habitat function. Restoration is a crucial process to maximize the value and function of biodiversity and ecosystem. The objectives of the research were to determine the photosynthetic parameters that most influencing within the plant species planted and to select the right plants species for restoration efforts. Eight native tree species were studied in this research. The methods used in this study were the Somogyi Nelson method for analyzing carbohydrate and the spectrophotometer method for analyzing chlorophyll. The research results showed that each type of restoration plant species (age 2 years after planting) had different characteristics in terms of their photosynthetic parameters studied. Dacrycarpus imbricatus (Blume) de Laub. and Syzygium lineatum (Bl.) Merr. & Perry, both had the highest carbohydrate content and the best ability to absorb CO2. Sloanea sigun (Blume) K. Schumann, Alstonia scholaris (L) R. Br., Manglietia glauca Bl., and Castanopsis argentea (Bl.) A.DC. had higher total chlorophyll contents than that of others. Altingia excelsa Noronha, M. glauca, A. scholaris, and Schima wallichii (DC.) Korth. had higher water contents. Based on the results of this research we recommended that the most suitable plant species for forest restoration efforts were D. imbricatus and S. lineatum.
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Judul: Penentuan Sistem Silvikultur Berbasis pada Proses Pemulihan Vegetasi dalam Teknik Silvikultur Intensif (Studi Kasus di Areal PT Sarpatim, Kalimantan Tengah)
Abstrak: Mistakes in implementing the right silvicultural system with forest characteristic cause forest degradation. The aim of this observation is to determine the appropriate silvicultural system based on the forest standing structure and similarity of community. The analyzed data’s composition’s type and forest standing structure, forest regeneration type composition, type variety index value, ordination showed by important value index and community dissimilarity index, and cluster and biplot analysis. The result shows that non-Dipterocarpaceae commercial type community has the biggest density and proportion in all levels. Forest standing structure shapes J-reversed curve. The variety on all plots is high enough. Ubar and red meranti dominate all observation plots. Almost tree community has relatively different types in each plot. Regeneration community almost all has value for ID <50% that means the community is relatively the same. It can be seen from cluster analysis chart which part of three grup. The biplot analysis result shows that TJ6 has the most similarity between recovery and tree, while the other plots have different composition.
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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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