Judul: Analisis manfaat ruang terbuka hijau untuk peningkatan kualitas ekosistem kota Bogor dengan menggunakan metode GIS
Abstrak: Bogor sebagai salah satu kota besar di Indonesia sedang mengalami pertumbuhan pembangunan yang signifikan. Korelasi dari pertumbuhan tersebut ada yang berdampak positif dan ada juga yang berdampak negatif. Dampak positif dari pertumbuhan pembangunan antara lain meningkatnya pendapatan asli daerah, munculnya sentra-sentra ekonomi, kesejahteraan masyarakat meningkat, indek kualitas pendidikan meningkat. Pada sisi yang lain dari pertumbuhan pembangunan juga berdampak negatif diantaranya beban kota makin berat seiring dengan pertumbuhan penduduk yang mengalami peningkatan, kualitas lingkungan perkotaan makin rendah, ruang terbuka hijau (RTH) semakin berkurang akibat pesatnya perkembangan kawasan perumahan dan kawasan industri yang pada akhirnya akan menurunkan kualitas ekosistem Kota Bogor. Pada penelitian ini akan dikaji dan dianalisis sejauh mana manfaat RTH untuk menjaga dan meningkatkan kualitas ekosistem di Kota Bogor melalui pendekatan kuantitatif terhadap kualitas udara, penyimpanan karbon, dan daya serap karbon. Penelitian ini pada prinsipnya ingin menyampaikan bahwa RTH memberikan pelayanan ekosistem pada Kota Bogor yang dapat diukur, sehingga dapat memberikan gambaran kepada pemerintah Kota Bogor bahwa betapa pentingnya menjaga serta meningkatkan luasan RTH yang dimiliki sebagai sebuah aset berharga. Disamping itu juga memberikan pemahaman kepada masyarakat umum untuk menjaga dan melestarikan RTH yang berada pada disekitar lingkungan mereka.
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Judul: Rancang bangun sistem pengelolaan ruang terbuka hijau untuk pembangunan kota hijau
Abstrak: Greenery open space is a fundamental part of urban development and management in sustaining the quality of urban environment and the welfare of urban dwellers. A high rate of population growth and limited land owned causing the growth of physical development in the city is done by converting such green open space, agricultural land, forest and other open space for urban development purposes. This study is intended to analyze total value of greenery open space ecological benefits of Bogor City, and provide possible recommendations in order to increase the capacity of its urban ecosystem. This analytical framework is applied to Bogor City considering its peculiarities of greenery open space existence and architectures. The research was conducted by spatial approach through CITYGreen 5.4 software to determine the ecological benefits of greenery open space, based on the trees canopy cover and non trees canopy cover to predict the economic value. CityGreen is a software tool developed by American Forest that helps people understand the value of trees to the local environment. The result showed that CITYGreen 5.4 software can be used to conduct complex analysis of ecosystem services and create easy to understand reports.The software calculate dollar benefits for the services provided by the trees and other greenery open space in absorbed such harmfull pollutants, carbon storage and sequestration, and reducing storm water volumes as natural flood control. The capacity of ecological benefit can still be improved to provide greater benefits in various ways. This software will be very beneficial for city planners in evaluate site plan, and model development scenario that capture the benefits of trees.
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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.
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