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INDONESIA
Green Earth
Published by Universitas Khairun
ISSN : 20896565     EISSN : -     DOI : -
Core Subject : Science,
Earth & Planetary Sciences
Arjuna Subject : -
Articles 8 Documents
 1 
Search results for , issue " Vol 1, No 1 (2012)" : 8 Documents clear
ILLEGAL LOGGING IMPACT ON THE ENVIRONMENT SUSTAINABILITY IN INDONESIA Saraha, Abdul Rasyid
Green Earth Vol 1, No 1 (2012)
Publisher : Green Earth

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Abstract

Indonesias forest is one of the centers of biodiversity in the world, where Indonesia is the third of seven countries called mega diversity country. The high rate of deforestation is causing the failure to achieve forest sustainability. It is reinforced by the presence of illegal logging. Illegal logging is a major cause of deforestation in Indonesia, which reached a level speed of 1.6 - 2.0 million hectares per year. That is why the Ministry of Forestry Indonesia has put the eradication of illegal activity including illegal timber trade. This study was conducted to identify why illegal logging is difficult to stop, and what are the impacts caused by illegal logging on the physical and biotic environment.This study is a literature study and case studies, in order to identify why it is hard to stop illegal logging and also the impacts caused by illegal logging on the physical environment and biotic environment.It is showed that illegal logging is symptoms that arise due to the highly complex issues involving multiple parties from different layers. Illegal logging has become a national issue which the commitment of governments at the national level must be real. However, because this problem occurs at the local level, then the commitment should also be clear areas in which Local Government must have a real responsibility. In general, the problems that led to illegal logging can be grouped into: supply-demand imbalance; government policies that are less precise; multi-dimensional crisis; excesses of decentralization (regional autonomy), and moral forces. A loss due to illegal logging has a broad dimension not only to economic problems, but also to social, cultural, political and environmental. In connection with the problems above , there are some required actions and commitments that must be implemented in an integrated and simultaneously involving the various parties involved stakeholders. Key Word: Illegal logging, Sustainability, Environment
ANALISIS BIDANG KONTAK ANTARA AIR TAWAR DAN AIR ASIN DI DAERAH PESISIR PANTAI PULAU TERNATE DENGAN MENGGUNAKAN METODE GEOLISTRIK (STUDI KASUS DI KELURAHAN KOTA BARU TERNATE) Salam, Ramdani; Umar, Sudir
Green Earth Vol 1, No 1 (2012)
Publisher : Green Earth

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Abstract

The decline of freshwater quality in coastal area one of which is caused by the intrusion of seawater inland. The study was conducted to determine the   interface between seawater and freshwater in northern coastal areas of   Ternate island (case study of Kelurahan Kota Baru) using geoelectric method. By compiling the data in certain formats, the data   are  applied to  Res2DinV. The   inversion result  will show an overview  of resistivity distribution of seawater and freshwater.The result shows that the  interface between freshwater and seawater  at Kotabaru coastal areas,  about 28.6 Ωm - 125Ωm.  The interface tends towards the sea, which showed no contamination between  freshwater and seawater, Keywords: Coastal, Interface, Geoelectric
KUALITAS MIKROBIOLOGI JAJANAN ES DI SEKITAR SEKOLAH DASAR (SD) DI WILAYAH PUSAT KOTA, TENGAH KOTA, DAN PINGGIRAN KOTA MALANG Tamalene, M. Nasir
Green Earth Vol 1, No 1 (2012)
Publisher : Green Earth

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Abstract

Packed ice snacks are often sold in Elementary School environment at city center area, central city, and suburbs area of Malang. The packed ice snacks were made traditionally by the people using water and the water wells. Schools used as a place to sell by the sidewalk vendors, the school also provided the best-selling to selling ice because the elementary school children with their high activity may cause them thirst, and it will allow them to buy packed ice snacks sold in around the school. Generally, the elementary school students do not know the types of snacks consumed, they just know that by drinking ice can relieve their thirst, other than that they didn’t think about the dangers posed by drinking unhygienic ice. By drinking unhygienic ice will cause sickness on students that can affect their learning activities in school. One of types of beverages sold in elementary school is packed ice. Packed ice is likely to be contaminated by pathogenic bacteria which enabling certain standards to ensure the cleanliness. Water and food contaminated by pathogenic bacteria digestive tract is very dangerous to drink, particularly the water that comes from the well which it less qualified microbiology quality. Keywords: quality, microbiology, snack ice pack, MPN value, Coliform bacteria, Coliform fecal bacteria, E. coli bacteria.
PARTISIPASI MASYARAKAT DALAM PEMANFAATAN HUTAN MANGROVE DI SIDANGOLI Muin, Fadlan
Green Earth Vol 1, No 1 (2012)
Publisher : Green Earth

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Abstract

         Mangroves are very important in coastal resource management. The most important function of mangroves for coastal areas is the link between land and sea. Plants, animals, other objects, and plant nutrients are transferred to the mainland or to the sea through mangrove. Mangroves act as a filter to reduce the adverse effects of major environmental change, and as a food source for marine (coastal) and terrestrial biota. The relationship between the region means that biodiversity around mangroves should also be considered, so that the total biodiversity of ecosystems is higher. Beside that economic potential of mangroves in Sidangoli can earn from three main sources namely forest, estuarine and coastal fisheries (shallow water), as well as natural attractions. Because of population pressure, especially coastal areas Sidangoli, resulting in a change in land use and utilization of natural resources in excess, if not protected by mangrove forests quickly become thinner and broken in the coastal Sidangoli. The need to balance must be achieved between meeting the needs now for economic development at a party, and conservation of environmental support systems on the other. Growing awareness of the protection function, the productive and socio-economic impacts of mangrove ecosystems in the tropics, and due to the decreasing availability of natural resources, encourage the lifting of the problem needs conservation and sustainability of the integrated management of resources-such valuable resources. Given the potential for multi-use natural resources, it is imperative that the management of mangrove forests based on terrestrial and aquatic ecosystems, in relation to integrated coastal zone management plan.
PEMANFAATAN BIOMASSA LAMUN ENHALUS ACROIDES SEBAGAI BIOSORBEN ION LOGAM Cu(II) Lestiyanti, Deasy; ., Muliadi
Green Earth Vol 1, No 1 (2012)
Publisher : Green Earth

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Abstract

Biosorption, representing alternative technique which can be used to overcome environmental contamination which come from waste discard of heavy metals pollutant. Biosorption of Cu(II) ion by biomass of seagrassi Enhalus acroides with variation of contact time, pH and concentration was investigated. The concentration of Cu(II) ion before and after adsorption was determined by atomic absorption spectrophotometer (AAS). pH optimum in biosorption process was conducted at pH of 1 – 7. Results showed that the optimum contact time was 60 minute and and the optimum pH was 6, respectively. Biosorption of Cu(II) ion by biomass of seagrass Enhalus acroides conducted at various concentration to study the isoterm adsorption. Models of isoterm adsorption used were Langmuir and Freundlich isoterms. Results showed that biosorption of Cu(II) ion by biomass of seagrass Enhalus acroides according to Freundlich isoterms with the biosorption capacity value (k) 0,6100 mg/g. Key words: AAS; Langmuir isoterm; Enhalus acroides, Biomass, Biosorption.
ADSORPSI LOGAM Ag(I) DAN Ni(II) PADA HIBRIDA AMINO-SILIKA DARI ABU SEKAM PADI Limatahu, Nur Asbirayani
Green Earth Vol 1, No 1 (2012)
Publisher : Green Earth

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Abstract

The research of Amino-silica hybrid(ASH) through process of sol-gel by using compound (3-aminopropyl)-trimetokxysilane(APS) from natrium silicate result processing of rice hull ash adsorption of metal Ag(I) and Ni(II).ASH was prepared out by adding HCl 3 M solution  to the mixture of natrium silicate solution and (3-aminopropyl)-trimetokxysilane. The produced adsorbent was characterized by X-ray diffraction (XRD) and infrared spectrophotometer (FTIR).  Adsorption of metal, was carried out in batch technique (static system). The adsorbed metal ions was quantitatively calculated as difference of ion concentration in metal solution before and after adsorption based on the AAS analyses Key words : rice hull ash, amino-silica hybrid, adsorption
RISK ASSESSMENT OF CLORINE GAS (CL2) AND METHANE (CH4) OF GARBAGE IN DKI JAKARTA USING THE EQC MODELLING AND AIR-WATER MODELING Zam Zam, Zulkifli
Green Earth Vol 1, No 1 (2012)
Publisher : Green Earth

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Abstract

The garbage case nowadays become a main issue every where because it needs serious treatment. The dangers related to the characteristics of materials commonly used in households is the materials that contain chemical compounds amunium (CH4) and chlorine (Cl2). This research used the fugacity model approach from ChemCan model including EQC software model and Air-Water Model, in which the structure of the model meets the rules of contamination verification in chemical pathway. To complete the analysis of the impact, it used Material Safety Data Sheet (MSDS) and CAS Number. The results showed that the distribution of Cl 2 in TPA using Model AirWater  obtined the chlorine concentrations (Cl2) in the air is 1.5 x 10-5 g per m3, 4.32% aerosol, and water 0.015 g/m3. Cl2 compounds found in leachit is 0.015 g/m3 with the ability of evaporation (volatilization) into the air is 3.6 X 107 ug / day. For the distribution of CH4 using the EQC Model In TPA, the concentration of CH4 in the air (level 3) is smaller than in TPS at level 1 and level 2 is greater than, this is due to the TPA has a lot of CH4 reaction and advection into the environment. Reaction and advection in the air increase the amount of CH4 gas in the atmosphere that can cause global warming. Key word: Risk Assesment, Gas Clorine, Gas Metan, Sampah, EQC Model, Air Water Model.
DISTRIBUSI TIMBAL DALAM UDARA AKIBAT EMISI KENDARAAN BERMOTOR DI KAWASAN KAMPUS UGM YOGYAKARTA Robo, Tamrin
Green Earth Vol 1, No 1 (2012)
Publisher : Green Earth

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Abstract

Recently, the increase of motor vehicle number in campus area of Gadjah Mada University Yogyakarta clearly affects air quality. This transportation vehicle was presumably become the source of air pollution such as lead distributed within air. This study is purposed to investigate correlation of motor vehicle density with lead concentration contaminating within air, correlation of land use form and lead concentration, and correlation of climate parameters (temperature, humidity, wind direction and velocity) towards lead concentration within air in Agro street, Colombo street, and Kesehatan street. Sampling was taken using purposive sampling method accorded to the distances from the road (<1 m, 100 m, 200 m and 300) in research’s location. The sampling was taken by means of Low Volume Air Sampler then lead (Pb) is measured using Atomic Absorption Spectrophotometer (AAS). Data analysis was taken using quantitatively descriptive method.The result suggests that there is correlation between density of motor vehicle and lead (Pb) concentration within air. The highest density of motor vehicle was found in Agro street. Lead concentration distributed within air was relatively fluctuated accorded to the distance from road edge; the highest lead concentration was found in Colombo street (0.00395 µg/m3) with distance of < 1 m and the lowest was found in Agro street (0.0008 µg/m3) with distance of 200 m. Agro street is a road with more plants aside than those of Colombo street and Kesehatan street which very rare. The highest temperature of 37,8oC was found in Kesehatan street and the lowest was 29,5oC in Agro street. Besides, the highest humidity was found in Kesehatan street of 79,05% and the lowest was found in Colombo street of 60,95%. The highest wind velocity is found in Colombo street of 0,8 m/s and the lowest one was found in Agro street of 0,35 m/s. Lead concentration in these three locations, if it is correlated with quality standard of natural environment of 2 µg/m2, was categorized into low, i.e. below the quality standard allowed. Key words : Motor vehicle emission, air lead, air temperature, air humidity and wind velocity.

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