Judul: Penggunaan Lahan Dan Nilai Sewa Lahan (Land Rent) Di Kawasan Puncak; Studi Kasus Desa Tugu Utara Kecamatan Cisarua Kabupaten Bogor
Abstrak: Desa Tugu Utara merupakan salah satu desa yang berbatasan langsung dengan kawasan hutan di Puncak Bogor, dan dalam Rencana Tata Ruang (RTRW) Kabupaten Bogor berada dalam kawasan hutan lindung. Keindahan alam di Desa Tugu Utara mendorong berbagai pihak untuk membuka lahan terbangun seperti villa, hotel dan lain sebagainya yang mengakibatkan terjadinya konversi lahan, area hutan dan penggunaan lahan pertanian menjadi lahan non pertanian. Penelitian ini dilakukan dengan tujuan untuk: (1) mengidentifikasi tipe-tipe penggunaan lahan di Desa Tugu Utara, (2) mengidentifikasi pola distribusi spasial inkonsistensi pemanfaatan lahan di Desa Tugu Utara saat ini (eksisting) terhadap Rencana Tata Ruang Wilayah, dan (3) menghitung nilai land rent pada setiap penggunaan lahan. Penggunaan lahan dominan di Desa Tugu Utara yaitu kebun teh berkerapatan tinggi seluas 364,3 ha. Luas terendah yaitu sawah dan semak belukar. Luas semak belukar sebesar 5,4 ha dan sawah sebesar 7,5 ha. Luas inkonsistensi terbesar yaitu kawasan hutan lindung menjadi penggunaan lahan aktual kebun teh berkerapatan tinggi seluas 364,3 ha. Nilai land rent tertinggi yaitu penggunaan lahan aktual perumahan penduduk padat sebesar 165.233 Rp/m2/tahun, sedangkan nilai land rent terendah yaitu penggunaan lahan aktual sawah dengan nilai sebesar 219 Rp/m2/tahun.
Keyword: Puncak, Penggunaan Lahan, Konversi Lahan, Inkonsistensi, Land Rent

Judul: Audit Tata Ruang Desa Tugu Utara dan Desa Tugu Selatan Kawasan Puncak
Abstrak: Tugu Utara Village and Tugu Selatan village are part of the upstream Ciliwung watershed that located in Puncak area. Intensive development in the upstream of Ciliwung watershed that are inconsistent with the spatial planning regulation resulted in environmental degradation. This research was conducted with the aims to (1) identify the spatial patterns of Bogor District Spatial Plan 2005-2025, status of forest area, land capability class and actual land use in Tugu Utara Village and Tugu Selatan Village; and (2) analyze the inconsistencies between the actual land use and the ideal criteria of land use allocation. Dominant land use in Tugu Utara village is a tea plantation (area of 36% of the village), while the dominant land use in Tugu Selatan village is a forest (area of 60% of the village). Inconsistency of the actual land use according to the allocation based on Bogor District Spatial Plan 2005-2025 found in protected forest areas with actual land use as a tea plantation with an area of 580 ha.
Keyword: Bogor Agricultural University (IPB), Forest Status, Spatial Planning Regulation, Puncak area, Land Use Inconsistencies

Judul: Synthesis of Apatite - Chitosan Composite Using Duck Eggshell and Chitosan with Temperature and pH Control
Abstrak: Composite of apatite-chitosan was prepared by using chitosan as polymer matrix. Calcium phosphate was prepared from CaO and (NH4)2HPO4, which the ratio Ca : P had to be 1.67. Chitosan is produced by deacetilase from biopolymer chitin. Duck eggshell (95% CaCO3) as starting material was converted to be calcium oxide (CaO) through calcinations with temperature 1000oC for 5 hours. In-situ and ex-situ methods were prepared from apatite and chitosan (dissolved with acetate acid 2%). Calcium phosphate prepared for bone implantation, but it is too fragile and brittle to be implant into the body. So addition of chitosan can decrease crystalinity and increase mechanic characteristic (tougher). Composite apatite-chitosan was resulted by fast precipitation. Fast precipitation was held in a breaker glass with nitrogen atmosphere, under controlled temperature at 37oC and pH 7, in order to increase amount of hydroxyapatite. Precipitation with CaO which was dropped by (NH4)2HPO4. Hydroxyapatite and chitosan were appearing at samples with in-situ and ex-situ methods which indicating by peak matching of XRD (closed lattice parameter, crystal size), overlapping at FTIR spectra and supporting by SEM picture (homogenous and agglomerated particle). However, it still needs further research to examine biocompatibility osteoconductive degree of sample by in-vivo and in-vitro test.
Keyword: