Judul: Dinamika Penggunaan Lahan Perkebunan Sawit dan Simpanan Karbon di Kabupaten Kubu Raya dan Sanggau tahun 1990-2013
Abstrak: Land use/cover change can be observed with spatial data of land use/cover from different time period. Objectives of this research were to identify land use/cover change in Kubu Raya and Sanggau District, determine dynamic of oil palm plantation, and determine carbon stock loss which was occured during 1990- 2013. During this period, land use/cover change have occured dynamically. Forest land use consistently decreased while non-forest land such as open land, shrub land, swamp shrub land, and oil palm plantation relative increased. Oil palm plantation in Kubu Raya increase from forest land (secondary swamp forest) during 1990/2009 whereas in the 2009-2013 period from non-forest land. Oil palm plantation in Sanggau dominated increase from non-forest land. Highest carbon stock loss occured during 2006-2009 period in Kubu Raya district and during 2011-2013 period in Sanggau District.
Keyword: Bogor Agricultural University (IPB), carbon stock, oil palm plantation, Land use/cover change

Judul: Pendugaan Perubahan Cadangan Karbon di Kabupaten Lamandau dan Kabupaten Kotawaringin Barat, Provinsi Kalimantan Tengah.
Abstrak: Deforestation and forest degradation has been a world attention due to their contribution on the global warming. This study describes the estimation of carbon stock changes caused by forest and land cover change using thematic approach. Carbon stock changes was analyzed and detected by using thematic change technique and multi-temporal image analysis. This research focused on carbon stock changes and emissions of CO2 due to land cover changes in Lamandau and Kotawaringin Barat Regency, Central Kalimantan Province. The main objective of this research is to estimate carbon stock changes and emissions of CO2 in Lamandau and Kotawaringin Barat Regency, Central Kalimantan Province during the period of 1990-2000 and 2000-2013. The result of this study indicates that there was a decrease in carbon during the period of 1990-2013, having mean annual decrease of carbon stock at amount of 2 945 639 Mg/year or equivalent to the loss of forest (deforestation) area of 23 986.6 ha/year and forest degradation area of 2 442.4 ha/year or equivalent to emission of 1 878 549 car/year.
Keyword: degradation, deforestation, multi temporal image analysis, carbon stock, land cover change, Bogor Agricultural University (IPB)

Judul: Infeksi tyzzeria spp. pada saluran pencernaan itik
Abstrak: Tyzzeria yang terdapat pada usus itik peliharaan maupun itik liar ada empat spesies, yaitu Tyzzeria perniciosa, T. allenae, T. pellerdyi dan T. chenicusae. Bentuk dan ukuran masing-masing ookista berbeda. Ookista T. perni- ciosa berbentuk ellipsoidal dan berukuran 10-13,3 x 9- 10,8 um, T. allenae berbentuk oval dan berukuran 14,5-17,3 x 9,6-11,5 m, T. pellerdyi berbentuk hampir bundar sampai ovoid dan berukuran 11-16 х 8-11 µm, T. chenicusae berbentuk silinder dan berukuran 20,4-27,6 x 14,4-20,4m. Dahulu genus Tyzzeria dikenal sebagai genus Schellackia yang mempunyai dua spesies, yaitu Schellackia bolivari yang berkembang dalam usus kadal dan Schellackia perniciosa yang hidup dan berkembang dalam usus halus itik. Stadia endogen Tyzzeria perniciosa dapat ditemukan dalam sel jaringan mukosa dan submukosa usus. Parasit ini setidak-tidaknya mempunyai dua generasi aseksual. Skizon generasi pertama berukuran 12 x 8m dan skizon generasi kedua berukuran 15-16 x 14-15 µm. Skizon generasi pertama ini dapat ditemukan 24 jam setelah infeksi dan skizon ge- nerasi kedua dapat ditemukan 60 jam setelah infeksi. Ski- zogoni terus berlanjut setelah terbentuknya gamet-gamet. Ookista-ookistanya dapat ditemukan di dalam faeces enam hari setelah infeksi. ...
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