Judul: Correlation of Massart Architecture Model for Agathis dammara L.C.Richard with Soil and Water Conservation at 27th plot RPH Gambung PHBM’s Area, KPH Bandung Selatan.
Abstrak: Agathis dammara L.C. Richard is plant that shaded Coffea arabica L. in the Pengelolaan Hutan Bersama Masyarakat (PHMB)'s ecosystem in South Bandung. Agathis dammara L.C. Richard with Massart's architecture has the contribution toward the soil and water conservation within its ecosystem. The purposes of this research are: 1) Determining the parameter’s scale of soil and water conservation (rain fall, stem flow, through fall, surface run-off and erosion) in the PHBM’s ecosystem, 2) determining the correlation between the parameter of soil and water conservation in PHMB's ecosystem, 3) determining the role of plant architecture model Massart of Agathis dammara L.C. Richard toward soil and water conservation in PHBM’s ecosystem. The results shows the scale of rain fall, stem flow, through fall, surface run-off, and erosion of Massart architecture model of Agathis dammara L.C.Richard in a row are 981.6 mm, 17.905 mm, 515.86 mm, 45.49 mm, and 5.314 ton/ha/year. Biplot Analysis shows the positive correlation among the parameter of rain fall, stem flow, through fall, surface runoff and erosion. Therefore, it can be concluded that the Massart’s Architecture model for Agathis dammara L.C. Richard is good for supporting the soil and water conservation of PHBM’s ecosystem where stem flow is the most closely related to the erosion.
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Judul: Correlation between Tree Architecture Models, Soil and Water Conservation at Gunung Halimun-Salak National Park
Abstrak: Soil erosion by water is a worldwide environmental problem which degrades soil productivity and water quality. This research was conducted to find out how tree architecture models influence stemflow, throughfall, infiltration, surface runoff and erosion. The sample of the research was two trees at sub-montane zone Castanopsis argentea BI.with Stone‟s model and Michelia montana Blume. with Petit‟s model. Soil conservation parameter measured for stemflow, throughfall, infiltration, surface runoff and erosion. Multiple linear regression and principal component analyses were used to get the correlation of each parameter. Correlation of the two models Stone and Petit is nearly pursuant to value of stemflow. Stemflow of Stone model (4.73 mm) is slightly smaller than Petit‟s model (6.20 mm). The two models showed also tighter correlation pursuant to value of throughfall, which indicates 657.82 and 640.91 mm for Stone‟s model and Petit‟s model respectively. Runoff estimated was 15.74 and 10.87 mm for the same models. The two models Stone and Petit reduced runoff by 31.33 % and 45.37 %, respectively, as compared to the control surface. Similarly, soil loss was quantified in 1.98, 0.82 and 0.76 ton ha-1year-1 for the Control, Stone model and Petit models, respectively. Above results show that Michelia Montana Blume. is better than Castanopsis argentea BI. to be developed in soil and water conservation.
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Judul: Leukemia pada kucing
Abstrak: Leukemia pada kucing adalah suatu penyakit yang sangat patogen, disebabkan oleh sejenis virus. Virus ini dikenal sebagai Feline Leukemia Virus atau FeLV. FeLV ini oleh beberapa ahli dikatakan hanya bersifat ganas pada hewan kucing. Penularannya bisa secara horizontal maupun congenital. Kucing pada semua tingkat umur dapat terserang oleh FeLV ini. Khusus pada bentuk "thymic leukemia", virus ini hanya menyerang anak-anak kucing berumur diba- wah 1 tahun. Kucing-kucing liar atau yang tidak terpeli- hara jarang sekali terinfeksi FeLV. Selain dari serangan virus FeLV itu sendiri, maka penyakit leukemia ini bisa disebabkan oleh beberapa fak- tor yang sudah ada dalam tubuh hewan dan sangat menunjang perkembangan penyakit ini, yaitu antara lain tumor, agen toksik, cedera oleh kecelakaan dan gangguan hemopoiesis. FeLV menyerang sel-sel darah dalam tubuh hewan se- hingga pembentukan darah berjalan tidak normal. Terlihat sel-sel darah yang belum dewasa sudah beredar dalam sir- kulasi darah. Bentuk dan jumlahnya tidak lagi seimbang dalam tubuh hewan kucing tersebut. Gejala klinis antara lain kekurusan, ikterus, anemia, lemah, anoreksia, dyspnoe, sulit menelan, batuk, dan membran mukosa pucat. Selain itu kelenjar pertahanan tubuh juga membengkak, kemudian terjadi hepatomegali, spleenomegali dan pembengkakan pada ginjal. Terbentuk massa tumor pada beberapa tempat. Secara biopsy pada sumsum tulang akan terlihat be- berapa perubahan. Sumsum tulang berwarna merah tua atau abu-abu. Konsistensinya lunak dan terdapat banyak sekali memproduksi sel darah putih. Melalui gambaran darah leukemia ini lebih mudah didiagnosa. Jumlah retikulosit rendah sekali. PCV 8-15%, hemoglobin menurun, sel darah putih (WBC) meningkat, lim- fosit meningkat, Alfaglobulin juga ada peningkatan, dan banyak eosinofil yang belum dewasa beredar dalam darah…dst
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