Judul: Estimation of Urban Forest Area Required In Bekasi City.
Abstrak: This paper describes the estimation of urban forest area required in Bekasi ~ using three approaches, i.e., C02 absorption ability, 02 demand and surface stcrr.age capability. The rapid population and economical growth in Jakarta had III ca~se the increase of the spatial need required for office, business center, mall, "C in&tstrial, residential and public areas. This trend had limited the existence of green 3 oJ%1 space. The problems related to population and economical growth are also '" oc~rred in Bekasi City, since Bekasi City is becoming the counter magnet to the plivince of DKI Jakarta. The necessity of urban forest area in Bekasi City continues to..ti..~l row every year along with the increasing needs of water and oxygen demand ali; carbon dioxide produced. The study shows that the most appropriate approach ::I. fo~. estimating the urban forest need is surface storage capability. The study found III that subdistrict which requires the largest urban forest area is West Bekasi OJ sugdistrict. The study also shows that estimation of thF needs of urban forest area .., from 2009 to 2025 are substantially wider than the extent of Bekasi City area. For the current condition, the required urban forest from 2009 to 2025 approximately 48,15 - 111,06 percent of the extent of Bekasi City area.
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Judul: Estimation of Urban Forest Area Necessity on South Jakarta
Abstrak: This paper describes the estimation of urban forest in South Jakarta using both 02 and C02 approaches. Plants have an important role in lifo as oxygen (O;?) producer and Carbon dioxide (CO;?) absorbent. Oxygen needed by human, vehicles and animals, meanwhile Carbon dioxide (CO;?) produced by human and vehicles. The population growth increase from year to year giving result to the increase of city development that cause negative impact to the green area. This thing also occur on Central Jakarta, because South Jakarta is the center of activities in the province of DKi Jakarta. The necessity of urban forest area on South Jakarta continues to grow every year along with the increasing needs of Oxygen and carbon dioxide produced. The mqjor component that needs oxygen and produce carbon dioxide on South Jakarta is vehicle. Subdistrict which require largest urban forest area based on the needs 9f oxygen and capability to absorb carbon dioxide is Kemayoran subdistrict. The needs of urban forest area nowadays and foture has already above the administrative region of Central Jakarta.
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Judul: Mud Crab’s (Scylla serrata Forskal 1775) Response to Different Decaying Level of Gold Snail (Pomacea canaliculata Lamarck 1822) Bait.
Abstrak: Mud crab is well known as omnivorous-vigorous-voracious-opportunistic-scavenger. These intertidal animals applies mainly chemoreception in their predatory behaviour. It has been commonly assumed that non fresh gold snail bait is better than fresh bait in stimulating the mud crab. This research's aim is to analyze mud crab response to different decaying level of gold snail bait. Their response were observed as time required to touch the bait and pattern and direction of the mud crab in approaching the baits. The different decaying level of gold snail baits were shown on Total Volatile Base Nitrogen (TVBN) as 16.3 mg/100g (0 day); 534.1 mg/100g (3 days); and 887.4 mg/100g (6 days). The research was conducted from July 2009 until February 2011. The TVBN test for gold snail baits were conducted at Laboratory of BBPPHP Jakarta. The experiment was conducted in Pemalang. The result showed that the average period of mud crabs to touch the baits were 52.14 minutes; 61.57 minutes and 52.57 minutes. Anova test concluded no sufficient evidence of significant effect of TVBN content of gold snail bait on mud crab’s feeding behaviour. Movement pattern B, i.e. left and right deviation followed by straight forward movement to the bait, was commonly exhibited by the crabs. Consequences of time period required by the mud crab to approach the bait on fishing operation is discussed.
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