Judul: Studi lingkungan fisik kulim (Scorodocarpus borneensis Becc) di Areal HPH.PT.Rokan Permai Timber Propinsi Riau
Abstrak: Kulim (Scorodocarpus borneensis Becc) merupakan bahan baku utama bagi industri kapal di Bagan Siapi-api, juga mempunyai kegunaan sebagai bahan bangunan rumah, buahnya digunakan sebagai obat dan bumbu masak sehingga memiliki nilai ekonomi yang cukup tinggi. Pada saat ini keberadaan kulim di alam terancam punah akibat adanya penebangan liar yang dilakukan secara besar-besaran. Tujuan penelitian ini adalah melihat pola penyebaran kulim (S. borneensis) dalam hubungannya dengan faktor lingkungan fisik dan melihat pengaruh dari faktor tersebut. Hasil dari penelitian ini diharapkan berguna sebagai masukan dalam upaya pelestarian kulim. Penelitian dilakukan pada bulan Desember 1996 sampai Pebruari 1997 yang berlokasi di areal HPH PT. Rokan Permai Timber, Propinsi Riau. ...
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Judul: Kajian Permudaan Tumbuhan Langka Kulim (Scorodocarpus borneensis Becc.) dan Komposisi Vegetasi Pohon Sekitarnya di Taman Nasional Tesso Nilo, Riau
Abstrak: Kulim (Scorodocarpus borneensis Becc.) is one of Indonesia wood species which have high economic value. This species is widely used by people in Bagan Siapi-api the Province of Riau for ship and building materials (Ismail 2000). Kulim is categorized as strong and long lasting wood. Unfortunately, this species of wood is rare to be found in the nature due to habitat disturbance. The aims of this research are to the population condition identify, the young level of kulim, the structure and composition of vegetations surround kulim‟s natural habitat. The vegetation data was collected through plot sampling using combination between strip and quadrate sampling techniques (20 m x 500 m). The total of transec was 5 and it was allocated systematically at every 100 m far from the location kulim found. Trees analysis was undertaken in 20m x 20m of square in every line, at the pole 10m x 10m, at the sapling 5m x 5m and the seedling 2m x 2m. The total of sampling units were 125 plots. The crown stratification was made through drawing 20 m x 100 m line. The data then was analyzed descriptively and quantitatively using vegetation analysis formulas. The formulas were aimed to get Important Value Index (IVI), Evennes Index and Diversity Index. Kulim has density at seedling level of 180 ind / ha, at saplings 35 ind / ha, at the pole 8 ind / ha, while the value at the tree level 2 ind / ha. High amount of Kulim found in diameter classes <10 cm of 20 individuals. It has been found as many as 28 species of tree-level, 24 species on the pole and stake, and 21 in 14 species of seedlings. Middle species diversity index value of 2.95 obtained, whereas equitable distribution of the species seen from the index value close to 1. There are A and B strata header with average height ranges from 20-40 meters. Kulim has strata header with average height ranges from 15-20 meters. Based on this research, Kulim population in TNTN heading to extinction. It‟s caused by the uncontrolled logging in the past. It can be seen by the number of logged-over Kulim‟s stump on this area. It‟s reasonable that Vegetation structure in Kulim habitats dominated by stands of young trees with average stem diameters ranging from 20-30 cm. there is low composition of habitus on research plots that only contain 32 species of tree composition.
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Judul: Trichomonas Gallinae Penyebab Trichomonosis Pada Unggas
Abstrak: Trichomonas gallinae adalah protozoa yang bergerak aktof dengan keempat flagella yang mempunyai layar dan pada salah satu sisinya terdapat membran seperti sirip ikan yang berombak. Spesies dari genus Trichomonas ini mempunyai arti penting pada unggas, karena dapat menyebabkan infeksi pada alat pencernaan bagian atas.
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