Judul: Model Pekarangan sebagai Taman Keanekaragaman Hayati di Kawasan Industri Karawang International Industrial City
Abstrak: Kawasan industri adalah salah satu kawasan yang cukup rentan terhadap masalah lingkungan. Kawasan ini berpotensi menimbulkan pencemaran lingkungan akibat limbah yang dihasilkan oleh suatu pabrik. Pencemaran terhadap lingkungan tersebut dapat mengganggu keseimbangan ekosistem di alam, khususnya mengancam keanekaragaman hayati yang ada di sekitar kawasan. Dengan mempertimbangkan dampak negatif yang akan terjadi, maka harus ada usaha untuk menata dan memperbaiki lingkungan di dalam kawasan industri. Salah satunya melalui pembuatan ruang terbuka hijau (RTH) yang mampu mengkonservasi keanekaragaman hayati. Dari berbagai bentuk RTH, pekarangan dengan praktik agroforestri dapat menjadi pilihan RTH yang mampu mengkonservasi keanekaragaman hayati secara ex-situ. Pekarangan ini dapat diimplimentasikan pada area permukiman di kawasan industri. Pekarangan adalah taman rumah tradisional yang bersifat pribadi dengan batas kepemilikan yang jelas. Pekarangan merupakan sistem yang terintegrasi erat antara manusia, tanaman, dan hewan. Keanekaragaman jenis dan fungsi tanaman yang tumbuh di dalam pekarangan serta dengan tinggi tanaman yang berbeda-beda membentuk tajuk yang berlapis-lapis dan menyerupai struktur hutan sehingga pemanfaatannya secara berkelanjutan dapat mempertahankan stabilitas lingkungan sekaligus memberikan kontribusi ekonomi dari hasil panen tanaman ataupun hewan yang dipelihara. Penelitian ini dilakukan di kawasan Karawang International Industrial City (KIIC), Karawang yang kemudian dikhususkan di area pinggir danau Telaga Desa. Telaga Desa, agroenviro education park, adalah salah satu kawasan hijau di KIIC yang didedikasikan untuk pusat penelitian, pelatihan/pendidikan, kepedulian di bidang pertanian, pelestarian lingkungan dan ekowisata serta pelatihan untuk program-program pengembangan ekonomi.
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Judul: Struktur, Fungsi dan Dinamika Keanekaragaman Hayati Pertanian Pada Pekarangan di Hulu DAS Kalibekasi, Kabupaten Bogor
Abstrak: Indonesian typical home garden, “pekarangan”, has several ecological potentials of agrobiodiversity. Nevertheless, pekarangan management in Indonesia is facing several problems, such as decreasing plot size, decreasing plant species for production function, but increasing number of ornamental plants for aesthetic function. The objectives of this research are to propose recommendations on agrobiodiversity conservation in pekarangan by analyze the structure, function and spatial dynamic of pekarangan agrobiodiversity in the upper stream of Kalibekasi watershed. This research was conducted in Cimandala, Landeuh and Leuwijambe hamlets which represented the upper part, the middle part and the lower part of the upper stream of Kalibekasi Watershed, respectively, and Sentul City as the urbanized area for comparison. There are 48 samples of pekarangan were observed and analyzed. It was found that pekarangan in the rural area of the upper stream of Kalibekasi watershed have larger space in front yard and one of side yard, but smaller in back yard with multilayer plants. The main function of pekarangan in rural area is a media for production, but in urban area are for micro-climatic amelioration and aesthetic function. The numbers of Margalef index and Shannon-Wiener index show that the upper part has the highest plant diversity. While, the values of Sørensen coefficient indicate that the middle part is the transition place of species similarity of the upper and the lower part. The proposed recommendation is to hold and maintain pekarangan with high diversity of plants and livestocks, which householders get benefit from the product.
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Judul: Uji sifat listrik dan struktur kristal fotodioda ba0,5sr0,5tio3 dengan variasi pendadahan fe2O3
Abstrak: Ba0,5Sr0,5TiO3 (BST) thin film was doped by Ferium (Fe2O3) has been done with doping variation 2.5%, 5%, 7.5% and 10% above the substrate Si (100) p-type using chemical solution deposition (CSD) methods by spin coating technique at 3000 rpm for ± 30 seconds. Ba0,5Sr0,5TiO3 thin film made with 1 M concentration and the annealing temperature by 850oC. The results of current-voltage (I-V curves) characterization shows that the BST thin film and BFST are photodiodes. Electrical conductivity values BST and BFST thin films are in the range of semiconductor materials and obtain the electrical conductivity increased when the higher intensity light is used. The result of the dielectric constant increases with the addition of Fe2O3 doping. SEM results showed that the BST and BFST material is a thin film with thickness of the order 10-6 m. Result of XRD showed that BST and BFST is cubic.
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