Judul: Development spatial information system for supporting degraded land rehabilitation project
Abstrak: Degraded land due to human activities should be rehabilitated to avoid further ecological and economical problem. Rehabilitation is a process of making a land useful after a disturbance. It involves the recovery of the functions of an ecosystem and associated processes of the degraded habitat. Rehabilitation will increase the number of vegetation, which has an important role in keeping the balance of CO2 concentration in the atmosphere, which significantly affects the climate system, and then, conducting a rehabilitation project, small or larger scale will affect the CO2 balance in the atmosphere globally. In petroleum industry, rehabilitation project is intended to solve environmental impacts due to exploration and operation activities. Exploration and operation activities which require certain amount of open area for constructing any facilities, as like road, pipe line, well pad, borrow pit, and others, cause patches (fragmentation) within the forest landscape. Further, fragmentation causes decreasing on what-so-called as ecological integrity. Opening forest for facilities, in fact, brings impact in amplifying the level of deforestation, especially for the protected forest, wherein the illegal logger can use the facilities to penetrate more/deeper into the forest. Then, there are actually two different kinds of degraded land, the first is the degraded land caused by direct impact of petroleum industry (driven by area requirement for exploration and operation facilities), and the last is degraded forest caused by indirect impact of petroleum industry (driven by the illegal logger who uses the infrastructures built by the company). Rooting from the facts (problem) in forest/land degradation described above, a rehabilitation project should consider many factors, which may not be the concern in previous rehabilitation project. An integrated planning, which can give information about the appropriate location, which may give the good goal of rehabilitation, should be developed before conducting a rehabilitation project. Otherwise, it does not give environmental improvement, since it may be disturbed again and again. Any reference already stated that effort of developing the good or integrated planning can be facilitated by utilizing an appropriate information system. This will enable the rehabilitation manager or planner to obtain information (rather than raw data) to enlarge his/her perspective, then can define a high-consideration decision on rehabilitation project. He/she can choose the candidate of the "safe" area which gives more possibility to achieve success in rehabilitation, or can choose the appropriate treatment for such degraded land, by observing the detail information. GIS, as the kind of information system which does not only deal with tabular (usual) data, but also with the spatial, is likely to be the candidate tool for managing data required in rehabilitation project. It does not just answer the question of what or when, but further give answer also on
Keyword: Provety evolution

Judul: Penentuan areal prioritas rehabilitasi lahan menggunakan sistem informasi geografis: studi kasus bagian hulu DAS Cisadane
Abstrak: Penggunaan lahan yang tidak memperhatikan kemampuan lahan akan menimbulkan munculnya lahan-lahan kritis. Di Indonesia, khususnya di Pulau Jawa banyak areal yang diindikasikan sebagai lahan kritis. Akibat dari lahan kritis tersebut adalah terjadinya banjir di musim hujan dan kekeringan di musim kemarau. Oleh karena itu sangat perlu untuk memulihkannya melalui kegiatan rehabilitasi lahan. Untuk mendukung perencanaan rehabilitasi diperlukan ketersediaan data spasial lahan-lahan kritis, antara lain menyangkut lokasi, distribusi dan tingkat kekritisannya. Di samping itu, karena keterbatasan kemampuan dalam melakukan rehabilitasi adalah penting untuk menentukan areal prioritas untuk rehabilitasinya. Tujuan dari penelitian ini adalah untuk: 1) menganalisa kekritisan lahan, 2) menganalisa tekanan penduduk dan aksesibilitas pada lahan-lahan yang perlu direhabilitasi, dan 3) menentukan areal prioritas rehabilitasi lahan dan bentuk rehabilitasi lahannya. Penelitian ini merupakan studi kasus yang berlokasi di bagian hulu Daerah Aliran Sungai (DAS) Cisadane Provinsi Jawa Barat. Analisis dilakukan menggunakan Sistem Informasi Geografis. Kekritisan lahan dinilai berdasarkan faktor biofisik lahan dengan menilai tingkat bahaya erosi pada setiap satuan lahan pada areal yang diindikasikan perlu direhabilitasi. Tekanan penduduk ditentukan berdasarkan tekanan penduduk terhadap lahan pertanian, sedangkan aksesibilitas diukur berdasarkan jarak dari jalan/permukiman terhadap areal yang perlu direhabilitasi. Penentuan areal prioritas rehabilitasi lahan didasarkan pada tingkat bahaya erosi, tekanan penduduk dan aksesibilitas, sedangkan bentuk rehabilitasi memperhitungkan kemampuan lahan, faktor biofisik dan status kawasan. Hasil penelitian adalah: 1) terdapat areal seluas 11.026 ha yang diindikasikan perlu direhabilitasi, sebagian besar mempunyai tingkat bahaya erosi sedang hingga sangat berat, 2) hampir semua areal tersebut mempunyai tekanan penduduk dan aksesibilitas tinggi, 3) areal yang diarahkan menjadi prioritas pertama untuk direhabilitasi adalah seluas 4.263 ha di dalam kawasan hutan dan 3.244 ha di luar kawasan hutan, 4) bentuk rehabilitasi lahan di dalam kawasan hutan adalah reboisasi; alternatif bentuk rehabilitasi lahan di luar kawasan hutan adalah wanatani (kebun campuran, pertanaman lorong, kebun pekarangan).
Keyword: GIS, Rehabilitation planning, Forest area, Reboisasi, Agroforestry

Judul: Ornithonyssus Bursa (Berlese, 1888) Famili Macronyssidae yang Menyerang Unggas Dan Penaggulangannnya
Abstrak: Ornithonyssus bursa adalah tungau penghisap darah pada unggas di daerah tropis dan subtropis. Tungau ini relatif kecil, dengan panjang tubuh antara 700-1000 mikron dan lebarnya 250-490 mikron. Tubuhnya bulat berwarna coklat kekuningan sebelum menghisap darh dan berwarna merah setelah menghisap darah dari induk semangnya.
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