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Ecotrophic, Journal of Environmental Science

ECOTROPHIC
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Published by Universitas Udayana

ISSN : 19075626 EISSN : - DOI : -

Core Subject : Social,

Environmental Science

Ecotrophic, Journal of Environmental Science (ISSN : 1907-5626) atau yang disingkat EJES, merupakan media publikasi bagi hasil-hasil penelitian, artikel dan resensi buku dibidang ilmu lingkungan. EJES adalah peer-reviewed dan open access jurnal, diterbitkan dua kali setahun yaitu bulan Mei dan September oleh Program Studi Ilmu Lingkungan, Program Pascasarjana Universitas Udayana.

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Articles 12 Documents

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Search results for , issue "Vol 11 No 2 (2017)" : 12 Documents clear

THE VULNERABILITY STUDY OF LEMURU (SARDINELLA LEMURU) FISH RESOURCES SUSTAINABILITY IN BALI STRAIT IN CORELLATION WITH ENSO AND IOD Candra Saputra; I Wayan Arthana; I Gede Hendrawan
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 11 No 2 (2017)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

The aim of this research is to know the relationship between lemuru fish catch to Sea Surface Temperature (SST), El-Nino Southern Oscillation (ENSO) and Indian Ocean Dipole (IOD) phenomenon in Bali Strait. The results showed, that in the period 2007 – 2016. fluctuations of catches lemuru tends to decline. Sea Surface Temperature (SST) distribution with the lowest temperature 25,28oC at 24,53oC - 27,16oC and the highest temperature is 29,31oC in the range of 28,730C – 30,490C. The lowest temperature occurred in July - September while the highest temperature occurred in January - April. Based on the calculation there is a linkage and relationship between catch and SST as shown on the value of determination and correlation reached 50,0% and 70,73%. Most of the catches occurred in the west season and then the transition II, transition I and East Season. The relationship of ENSO phenomenon to the catch during the El-Nino phase of lemuru catch will increase while in the phase of La-Nina the catch of lemuru will decrease, because time of El-Nino phase of the sea surface temperature (SST) relative low which results in the chlorophyll-a mean case which is a food sources of lemuru fish. Based on Trenberth's theory, (1997), the rise and fall of the ENSO Index of less than six months is not stated in ENSO. From the calculation results during the research of 2007 - 2016 happened three times ENSO phenomenon that is in 2009, 2010 and 2015. At the time of the IOD phenomenon, the IOD (+) phase will result in a decrease in catch while the normal IOD phase and (-) will increase the catch. From the results of this study can also be observed, in the year 2007 - 2011 phenomenon ENSO and IOD have a strong influence on the catch while in the year 2012 - 2016 the influence of the phenomenon of ENSO and IOD has no strong influence caused by the quantity of lemuru fish that have been over exploitation that resulted in the current Bali Strait on Over Fishing status. Keywords : Fish Catch; El-Nino Southern Oscillation (ENSO); Indian Ocean Dipole (IOD)

MANGROVE FOREST STRUCTURE AND DIVERSITY IN NUSA LEMBONGAN, NUSA PENIDA SUB DISTRICT, KLUNGKUNG DISTRICT ida bagus adi palguna; IPG Ardhana; I Wayan Arthana
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 11 No 2 (2017)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Mangrove forest are plant communities which cover tidal areas in the tropics. Nusa Lembongan mangrove forest is a natural forest with an area of 202 hectares. The rapid development of the world tourism utilizing mangrove forest has caused a lot of pressures to the mangrove forest of area studied. This study aimed to determine the structure and diversity of mangrove species in Nusa Lembongan mangrove forest which was associated with environmental conditions both soil and climate factors. Transect method with square frame along the line was applied in vegetation analysis. Data showed that the vegetation in the mangrove forest consisted of four growth stages, namely tree, pole, sapling and seedling. There were 12 species of trees, 6 species of poles, 4 species of saplings and 5 species of seedlings. Rhizophora apiculata Blume of family Rhizoporaceae was the dominant species among the four growth stages with important value of 115.48%, 132.276%, 185.084%, 185.084%, and 165.882% respectively. There were 13 mangrove species found with diversity index of 2.461 and the forest was fairly stable. This is because the forest sufficiently supported by environmental factors, including dry climate-type F (Schmidth dan Ferguson), high water salinity, soil textures of clay and sandy loam, generally ranging from moderate to high organic matters and calm coastal area.

Analisis Korelasi Perubahan Tutupan Vegetasi Terhadap Perubahan Suhu Udara di Kota Denpasar MAR’IE ABDA’U ZAL; I Wayan Nuarsa; NI WAYAN FEBRIANA UTAMI
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 11 No 2 (2017)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

The rate of growth and development of Denpasar city increases the demand for land to supply the needs of urban facilities and infrastructure. This affected to the increase of conversion of vegetation coverage into built-up land cover. The conversion of the vegetation coverage impacts on urban environmental quality which is increase the rate of air temperature. The purpose of this study is to examine the impact of vegetation coverage change on the air temperature change in Denpasar city in year of 2003, 2009 and 2015. Remote sensing and regression statistic method were used in this study. The results showed that the decrease of vegetation coverage influenced the increase of air temperature in Denpasar city. Statistically, the correlation can be projected on the equation y = 31,295-0,078x, where x and y are vegetaton coverege and air temperature respectively. This equation shows that decresing of 1% vegetation coverege will increase 0,078 oC of air temperature. The effort to conceder in responding to the temperature rise that occurred in Denpasar is increasing the number of green open space. Based on the classification value of vegetation coverage and air temperature of Denpasar City, there are three categories of priority areas for green open space development that is high, medium and low priority. The development of green open space in each priority area can be adjusted to the characteristics of land use.

POTENSI ENERGI LISTRIK YANG DIHASILKAN DARI EMISI GAS METANA DI TPA SUWUNG PROVINSI BALI Putu Dian Paramitha Dewi; I Wayan Suarna; I Wayan Budiarsa Suyasa
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 11 No 2 (2017)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Waste is one source of greenhouse gas emissions (GHG) that has methane gas form which caused an early multi-dimensional, massive and complex problems. The rapid increase of garbage volume entering landfill, annually result a high garbage dumps in the Suwung Landfill area. It should have been considered a handing solution for example by converting the methane gas content in the waste into a useful value added product. The objective of this research is determining the amount of electrical energy that can be produced through methane gas emission at Suwung Landfill. The characteristic and composition of waste could give effect to the formation of methane emissions. The research on the composition and characteristic of waste were done by sorting 1 m3 of garbage sample from new garbage entering landfill. Garbage is divided based on the source of DLHK waste, market waste, and private waste. The volume of waste that went to Suwung Landfill in 2016 calculated 1.296.438 m3 which was dominated by organic waste (78,1%). The density of the waste that went into Suwung Landfill, based on the research's results, amounted to 135,09 kg / m3, there fore could be assumed that the weight of waste that went to Suwung Landfill in 2016 was 175.135,81 tons. Based on these data, the number of 136.785,13 tons of waste, which was organic waste, could increase the concentration of greenhouse gases in the atmosphere if this situation does not manage properly. Gravimeter method is using for measures the dry matter content value of waste. From the measurement, the results obtained the waste components that have the highest dry matter content is from rubber and leather garbage (76,52%) while the lowest dry matter is food waste (19,13%). By using calculations based on IPCC 2006, it was found that the amount of methane emissions could be generated by the waste at the Suwung Landfill in 2016, amounted to 3.535,06 tons. Based on the energy equivalence table, the electrical power that is generated from the potential methane emissions at the Suwung Landfill is 6,66 MW. Keywords: waste composition, waste characteristics, methane emissions, ipcc2006, electrical power.

Pattern Of Perception And Public Participation In The Management Of Household Waste And Waste Banks In The District Of East Denpasar, Bali Province murdiman murdiman; Made Sudiana Mahendra Sudiana Mahendra; I Made Adhika
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 11 No 2 (2017)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Efforts to reduce of waste generated by the community requires awareness, participation and cooperation among stakeholders. Denpasar Government implement strategies to manage waste handling and hygiene can be handled in each region. This step requires the integration between the systems of waste management, legal framework and clear support to be able to walk well, effectively and efficiently. On one hand, the management of solid waste management, especially those involving real role of the community, not separated from the support of government, private sector and society itself. This study was designed using descriptive analysis of qualitative and interpretative. Data was obtained through data collection techniques. Interpretative with reference to the theory and frame of mind, in order to obtain an understanding of the data in accordance with the purpose of research. Data that have been collected from questioner lets further processed and analyzed by using Likert scale and then draw conclusions, resulting descriptive data to observe the household waste management system based Waste Bank in East Denpasar District. In principle, it was observed that the principle of the 3R (reduce, reuce, and recycle) has been applied substantially in the management of household waste bins bank based in East Denpasar District involving the community. The role of the community looked to their participation in the environmental clean-up activities, including composting, bio-pore and willingness to be come a member of waste bank. The results showed that (1) the perception of the community in the management of household waste is categorized as good with an average score of 3,83 (2) community participation in the management of household waste bank-based garbage in both categories with an average score of 3,68, then used as a basis in determining strategies for the management of household waste bank based in East Denpasar District.

Daya Tampung Beban Pencemar Sungai Badung di Desa Dauh Puri Kota Denpasar dengan Model QUAL2KW dody setiawan; I G B Sila Dharma; I Wayan Budiarsa Suyasa
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 11 No 2 (2017)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Badung River is flow through two regencies of Badung and Denpasar that has 25.17 km length. People actually use Badung River for tourism, irrigation, drainage system and as the exile of wastewater from all activities along the river. The water quality of Badung River has exceeded the threshold limits.Therefore, It is needed to determinate the carrying capacity of Badung river. Because of the pollution, the water quality has degraded. The objective of this research is knowing the sources of pollution and load capacity of Badung river at Dauh Puri village using Qual2kw model, to define that amount of pollutant that are allowed to exile in Badung River. The water quality parameter that analyzed is BOD, COD, and TSS. This research divided into three segments, and four scenarios of simulations to know allowed loading rate of pollutant along the river. The callculates and allocate pollutant reduction levels necessary to meet approved water quality standards. The result of simulation using Qual2kw showing that BOD has over its limit, meanwhile for COD parameter, the loading rate is between 536,21 to 1360,32 kg/day and TSS loading rate between 2235,92 to 4252,90 kg/day. Keywords: Badung River, Qual2KW 5.1, Loads Capacity, Water Quality

STUDI ANALISIS KUALITAS AIR DI DAERAH ALIRAN SUNGAI PAKERISAN PROVINSI BALI ketut asrini; I Wayan Sandi Adnyana; I Nyoman Rai
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 11 No 2 (2017)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Pakerisan watershed is used by the people for various purposes to meet the daily needs for water and it is also for irrigation water. The aim of research was to determine the water quality related to human activities and the pollution index. Water sampling was conducted in the nine sample points i.e. upstream of two sample points, in the middle of four sample points, and in the downstream of three sample points. Sampling was done by purposive sampling. Determination of water quality was carried out by comparing the measured data of each parameter of water with the value of quality standards based on the Bali Governor Regulation Number 08 of 2007, while the definition of the status of water quality was done by the pollution index method. The results showed that the activities that affect the water quality physically, chemically and biologically at the upstream to downstream are farming activities, settlements, tourism and trade. In the upstream showed no parameters that exceeded the quality standards, the variables of BOD, COD, phosphate, fecal coli and total coli exceeded the quality standards and in the downstream, the BOD, fosfat and fecal coli exceeded the quality standards. The pollution index found in the upstream region good condition, whereas in the middle was classified as heavily polluted until the downstream was lightly polluted.

ECOTOURISM MANAGEMENT STRATEGY TO SUPPORT ENVIRONMENTAL CONSERVATION IN MOKWAM AREA, MANOKWARI REGENCY, WEST PAPUA Fina Elziana Sapary; I Nyoman Rai; I Nyoman Sunarta
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 11 No 2 (2017)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Mokwam Area is one of the ecotourism objects in Warmare District, Manokwari Regency, West Papua Province. Whilst, it has a wide variety of endemic flora and fauna, ecotourism of Mokwam is also rich in herbs used by indigenous Mokwam known as Arfak tribe. The aim of this study were: 1) to identify the potential of ecotourism in Mokwam Area, 2) to better understanding constraints in ecotourism management supporting environmental preservation in Mokwam Area, and 3) to determine the ecotourism management strategies in favor of Mokwam environmental preservation. Data collection techniques of this research were observation, interview and documentation. The collected data was analysed by using qualitative descriptive and SWOT analysis. The SWOT is used to frame ecotourism management strategy by identifying internal and external factors. The results shows that the ecotourim potential of Mokwam area is a beautiful natural scenery, as well as biodiversity of flora and fauna. The potential attracted endemic faunas of Mokwam ecotourism is a variety of Birds of Paradise (Burung Cenderawasih) which are Cenderawasih Raja (Western Parotia), Cenderawasih Bela Rotan (Magnificent Bird of Paradise), Cenderawasih Ekor Panjang (Arfak Astrapia), Cenderawasih Buff-tailed sicklebill, Cenderawasih Long-tailed paradigala, Cenderawasih Black Sicklebill, as well as Namdurpolos Clever Bird (Vogelkop Bowerbird). Several considerable constraints in managing Mokwam ecotourism considering the environmental conservation is shifting cultivation method implementing by Arfak tribe. This method would potentially exterminate the forest as a habitat of the endemic flora and fauna if there is an increase in population, hot mix road access to Mokwam areas has still not been available and lack of cooperation between villages in Mokwam Area. The strategies based conservation concept in managing Mokwam ecotourism are promoting Mokwam potential ecotourim to the outside audiences; preserving the local wisdom of igya ser hanjob in order to protect the forests which are the habitat of endemic flora and fauna; improving road access to Mokwam Area; conducting comparative studies to similar tourism objects; establishing effective cooperation with other available tourism objects around Mokwam Area; empowering Arfak community about ecotourism management so that the community competitiveness towards other ecotourism areas could potentially be realised. Keywords: Ecotourism, biodiversity of flora and fauna, management strategy, local wisdom

PENETAPAN DAYA TAMPUNG BEBAN PENCEMAR TUKAD MATI DI KABUPATEN BADUNG DENGAN MODEL QUAL2KW 5.1 i kadek ardi putra; I Wayan Budiarsa Suyasa; I G B Sila Dharma
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 11 No 2 (2017)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

ABSTRAK Tukad Mati is one of watershed that is flow through two regencies of Badung and Denpasar that has 12 km length. Tukad Mati functioned as irrigation, drainage system and as the exile of wastewater from all activities along the river. Because of the pollution, the water quality has degraded. The source of pollution is organic matter pollutant, agricultural pollutant such as pesticide and hazardous waste. The aim of this research is knowing the pollutant loading rate from point source and non point source using Qual2kw model, to define that amount of pollutant that are allowed to exile in Tukad Mati river. The water quality parameter that analyzed is DO, COD, BOD and Phosphate. This research divided into three sections, and 4 scenario of simulation to know allowed loading rate of pollutant along the river. The result of simulation using Qual2kw for BOD that is the minimum DO loading rate was 1,15 kg/day for section 1 then maximum loading rate is 64,88 kg/day on section 3. Meanwhile for COD parameter, the minimum loading rate is 1446,61 kg/day and in the upstream the minimum COD loading rate 1375,06 kg/day. For phosphate parameter the loading rate that allowed is 0,79 kg/day, while in the upstream maximum 12,57 kg/day on segment 3. Keywrods : Tukad Mati, Qual2KW 5.1, Loading Rate, water quality

PERSEPSI DAN PERILAKU MASYARAKAT TERHADAP AIR LIMBAH YANG DIHASILKAN DAN KUALITAS AIR TUKAD RANGDA, KOTA DENPASAR, PROVINSI BALI Ni Luh Putu Mega Priantari; I Wayan Budiarsa Suyasa; I Wayan Windia
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 11 No 2 (2017)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Many activities and the continuous disposal of waste water has resulted water pollution in Tukad Rangda. Tukad Rangda's water quality over the last five years (2012-2016) indicated experiencing contamination with decreasing water quality. The condition indicates the need of serious effort to maintain the water quality of Tukad Rangda. The purpose of this research is to know the perception and behavior of head of household and businesses in conducting waste water management that potentially causing Tukad Rangda water contamination, determining water quality and water quality status based on the Pollution Index, and determining appropriate alternative strategies to control water pollution in Tukad Rangda. Sample was collected by purposive sampling. Water samples was taken at three point: on the upstream, middle, and downstream of Tukad Rangda. Samples are analyzed in situ and in laboratory. Determination of perception and community behavior based on questionnaires and interviews to households and businesses. The data obtained were analyzed by force-field analysis to determine alternative strategy of Tukad Rangda water contamination control. The results of perception analysis of households and businesses on waste water management that has the potential to cause Tukad Rangda water contamination shows well-categorized results. However, for the behavior of head of households and businesses on waste water management that potentially causing Tukad Rangda water pollution, each of them showing results that can be categorized as quite good and less good respectively. Water quality of Tukad Rangda at upstream, middle, and downstream areas have exceeded the water quality standard class II in accordance with the Bali Governor Regulations No. 16 year 2016 for these parameters: BOD, COD, phosphate, and lead. Water quality status of Tukad Rangda based on Method of Pollution Index at upstream, middle, and downstream classified slightly contaminated. Based on force-field analysis, the alternative strategy obtained is increasing the insight and understanding about waste water management to the community, water waste management regulation at household scale, coaching, supervision, and law enforcement against businesses violating the applicable regulations, providing waste water treatment facilities, as well as the development of Tukad Rangda as water tourism area through the involvement of community participation.

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