Ecotrophic, Journal of Environmental Science
Published by Universitas Udayana
ISSN : 19075626     EISSN : -
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.
Articles 196 Documents
STUDY ON VARIABILITY MECHANISM DURING 1997/1998 ENSO IN EASTERN PART OF INDONESIA ARCHIPELAGO USING SATELLITE DATA AND IN-SITU DATA Chandra Astiti R., Luh Made; Osawa, Takahiro; Redi Aryanta, I Wayan
Ecotrophic, Journal of Environmental Science Vol 1, No 2
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El Nino-Southern Oscillation (ENSO) is one of the most important climate anomalies humans isconcerned about. It brought many changes in physical of the ocean. The seas of the Indonesian Archipelagoare an artery carrying tropical thermocline water from the Pacific to the Indian Ocean. Termed theIndonesian Throughflow (ITF), this transport is driven by the Pacific/Indian interocean pressure gradient.The variability of SST in Equatorial Zone during 1997/1998 ENSO analyzed by using L1 AVHRR satelliteimages from NOAA and in-situ data from TAO/Triton buoy. This study was done in Eastern Part ofIndonesian Archipelago (110oE – 130oE and 4oS – 11oS). This research begun by collecting data in longterm, 1993, 1997, 1998 such as: in-situ data and satellite image. L1 AVHRR satellite images from NOAA toget SST data were used. From TAO/Triton buoy, SST and current data were got. SSH data available from L3TOPEX/Poseidon. SLP and salinity data were got from NOAA-CIRES Climate Diagnostics Center. All thedata analyzed by SOI value to recognize the normal, El Niño, and La Niña conditions. The SOI value wasused in this study available from existing research data.Generally, the SST in northern Lesser Sunda (Bali, Lombok, Sumbawa and Flores) was 0.5 – 1oC higherthan southern part. During El-Nino event on October 1997, the 1 – 2oC cooler SST causes the surfacepressure get higher around Indonesian seas. This phenomenon probably is much influenced by the change ofseason in Indonesia, from hot season to the rain season. But during El-Nino 1997 the 1 – 4oC warmer waterwas occurred in centre part of Pacific Ocean, hence the sea water from Indonesia Sea flown to the PacificOcean. During El Nino conditions, on December 1997, the SSH in southern Indonesia Archipelago wasabout 10 – 40 cm lower than normal conditions and became 10 – 30 cm lower than Indonesian seas. Thiscould be due to the SST in Indonesian seas was higher than southern Indonesian Archipelago causes lowersurface pressure in Indonesian seas. During La Nina conditions, on November 1998, the SSH in southernIndonesia Archipelago was about 5 – 35 cm higher than normal conditions and became higher thanIndonesian seas. This could be due to the SST in Indonesian seas was lower than southern IndonesianArchipelago causes higher surface pressure in Indonesian seas. Water mass would be flowing fromIndonesia seas to southern Indonesia Archipelago. Generally, during 1997 to 1998 the current in Java Seabecame 1 – 3 m/s stronger than normal conditions. During El-Nino 1997/1998 the sea surface temperaturein central Pacific region was warmer than usually, this could be mean the current inverse to the centralpacific from Indonesia seas. Generally, during 1997 to 1998 the current was flows southward throughMakassar Strait, continue to Lombok Strait and go to Indian Ocean. The current in Makassar Strait wasflows about 1 – 4 m/s and about 1 – 2 m/s in Lombok Strait. On June 1997 the current was flows northwardthrough Lombok Strait about 1 – 2 m/s.
ANALISIS KARAKTERISTIK SAMPAH DAN LIMBAH CAIR PASAR BADUNG DALAM UPAYA PEMILIHAN SISTEM PENGELOLAANNYA Jana, I Wayan; Mardani, N.K.; Budiarsa Suyasa, I W.
Ecotrophic, Journal of Environmental Science Vol 2, No 1
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Penelitian ini merupakan penelitian cross sectional dengan analisis data di lakukan di lapangan danlaboratorium. Pengukuran kuantitas sampah dilakukan selama satu minggu berturut-turut, sedangkanpengukuran karakteristik yang meliputi komposisi, kepadatan dan kadar air sampah dilakukan sebanyak tigakali pengukuran. Pengukuran kuantitas dan kualitas limbah cair juga dilakukan sebanyak tiga kali. Parameterlimbah yang diukur adalah parameter kimia dan fisik yang meliputi BOD5 dengan metode elektroda, CODdengan titrimetrik, TSS dengan metode filter membran, serta parameter bakteriologis menggunakan metodeMPN dengan tabung fermentasi.Hasil penelitian menunjukkan, bahwa timbulan sampah pasar Badung sebanyak 33,13 M3 per hari,yang terdiri dari empat komponen, yaitu; sampah organik sebesar 71,51 %, sampah plastik sebesar 14,61%,sampah kertas dan karton sebesar 12,59 %, dan sisa-sisa potongan kain dan lain lain sebesar 1,29 % dengandensitas sebesar 244,33 kg/m3 dan kadar air mencapai 25,67%. Perkiraan volume limbah cair yang dihasilkanPasar Badung adalah sebesar 49.056 liter per hari dengan kualitas termasuk kedalam kualitas limbah klas IIIberdasarkan kandungan TSS dan termasuk kedalam kualitas limbah klas IV berdasarkan kandungan BODdan COD serta adanya indikator tercemar tinja manusia karena mengandung bakteri Coliform maupun E.coli. Limbah cair ini memberikan beban pencemaran secara langsung terhadap Kali Badung.Berdasarkan karakteristik sampah yang didapatkan, maka alternatif yang paling tepat diterapkanuntuk pengolahan sampah Pasar Badung adalah dengan melakukan pemilahan pada sumbernya kemudiansampah organik diolah dengan metode komposting dan sampah anorganik dilakukan upaya daur ulang,sehingga kebutuhan TPA menjadi berkurang serta nilai ekonomis sampah bisa diangkat. Berdasarkan kualitaslimbah cair, maka limbah cair yang dihasilkan Pasar Badung sudah seharusnya dibuatkan suatu instalasipengolahan air limbah (IPAL) secara lengkap, sehingga tidak memberikan beban tambahan terhadappencemaran Kali Badung.
STUDY OF ESTIMATE CONCENTRATION OF WATER CONSTITUENTS AT BADUNG STRAIT BALI USING INVERSE MODEL Swardika, I Ketut; Osawa, Takahiro; Arthana, I Wayan
Ecotrophic, Journal of Environmental Science Vol 1, No 2
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An algorithm was employed to retrieve the concentrations of three water constituents, chlorophyll-a,suspended matter and colored dissolved organic matter (CDOM) from MODIS (Moderate-ResolutionImaging Spectrometer) in wide range covering from oligotrophic case-1 to turbid case-2 waters at theBadung Strait Bali. The algorithm is a neural network (NN) which is used to parameterize the inverse of aradiative transfer model. It’s used in this study as a multiple nonlinear regression technique. The NN is a feedforward back propagation model with two hidden layers. The NN was trained with computed radiancecovering the range of chlorophyll-a from 0.001 to 64.0 ?g/l, inorganic suspended matter from 0.01 to 50.0mg/l, and CDOM absorption at 440nm from 0.001 to 5.0 m-1. Inputs to the NN are the radiance of the fivespectral channels which were under discussion for MODIS. The outputs are the three water constituentconcentrations. The NN algorithm was tested using in-situ data set on May, September, November 2005 atthe Badung Strait Bali and the north sea of Sumbawa Island and applied to MODIS. The coefficient ofdetermination (R2) between chlorophyll-a concentrations derived from simulation and in-situ data is 0.327,for suspended matter R2 is 0.408. No in-situ measurements of CDOM available for validation. Also, in-situdata were compared with the corresponding distribution obtained by the NASA standard OC4 (OC3M) forMODIS chlorophyll-a algorithm and giving R2 0.188. This study gives better accuracy compare withstandard algorithm. How ever both studies are giving over estimate chlorophyll-a concentration. Since thereare no standard MODIS products available for suspended matter and CDOM, the result of the retrieval by theNN for these two variables could only be assessed by a general knowledge of their concentrations anddistribution patterns
STUDI KUALITAS HASIL PENGOLAHAN AIR LIMBAH - KASUS SALAH SATU HOTEL BERBINTANG DI BALI Sudipa, N.; Mahendra, M.S.; Sudana, I.B.
Ecotrophic, Journal of Environmental Science Vol 1, No 2
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Water is well thought-out as one of the basic need of human life. Beside its significant role in incomecontribution in the region, tourism industry is almost blamed as an environmental demolisher and polluter inBali. This matter writer interest for research something result quality waste water processing at one casehotel and specific as know bacteriology and chemistry quality, because the result of quality hotel waste waterprocessing very influential about water of river already polluted as physical, chemistry and bacteriology.The study aimed to investigate water quality of Ayung River at the nearest outlet of a star hotel STP and atupper-site rive..The research of methodology is hotel waste water analysis be based on the Minister of EnvironmentLife Regulation number 52, 1995. Analysis result waste water process and water ofr river be based onGovernment Regulation number 82, 2001.The water analysis results evidently showed that water sample taken during the 1st - 3th weeks beforeprocessing at hotel’s STP were classified as heavily polluted based on water quality class I, II, III, and IV,with lowest pollution index (PI) of 33.23 and highest at 42.56. Amazingly, samples taken after STPprocessing were categorized as heavily polluted as well, based on water quality class I II, III, and IV. Thelowest PI was 13.4 and the highest at 22,15. Water sample taken at the nearest STP outlet at river wascategorized as slightly polluted based on water quality class I and fill quality criteria based on water qualityclass II, III, and IV. Water sample taken at upper-site of Ayung River was categorized as slightly pollutedbased on water quality class I, and fill quality criteria polluted based on criteria of water quality class II, III,and IV.
MONITORING MANGROVE AREA IN BENOA BAY USING LANDSAT TM AND ETM + DATA Ari Sugianthi, Ni Luh Made; Arthana, I Wayan; Sandi Adnyana, I Wayan
Ecotrophic, Journal of Environmental Science Vol 2, No 1
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Mangrove ecosystems are crucial for the management of some coastal resources in Indonesia. Thisresearch used Landsat TM 1994, Landsat ETM+ 2002 with the purpose to know mangrove area change foreight years, mangrove density and accuracy of image as source of data to mangrove area in Benoa Bay. Fromimage analysis that using maximum likelihood method, the mangrove is classified into 3 classes i.e.:mangroves with high density, medium density and low density. For the ground check, used single plotmethod by using 6 trees.The extent of mangrove area in Benoa Bay were 447.69 ha in 1994 and 622.08 ha in 2002. Thechange of the extent of mangrove area during 8 years (1994 – 2002) increased by 174.41 ha. The area ofdensities in 1994, high density was 225.15 ha, medium density was 122.48 ha and low density was 130.05ha. In 2002, high density was 262.8 ha, medium density was 265.95 ha, and low density was 133.30 ha.Based on the regression analysis between mangrove density and the value of interpretation, the density ofmangrove in Benoa Bay which the criteria of high density is 364.723 – 466.311 tree/ha, medium density is237.738 - 364.723 tree/ha and low density is 186.944 – 237.738 tree/ha. The determination coefficient (r2)was 0.6312. Based on the regression analysis in 2002 used in interpretation of mangrove density in 1994,which the criteria of high density is 357.10 tree/ha –316.47 tree/ha, medium density is 273.29 tree/ha –316.47 tree/ha and low density is 252.98 tree/ha –273.29 tree/ha.The accuracy of the Landsat ETM+ 2002 for mangrove area classification in Benoa Bay was 90%.These values were above the acceptable limit of accuracy stated of 80 %, so that this classification accuracywas acceptable.
KEMAMPUAN SISTEM SARINGAN PASIR-TANAMAN MENURUNKAN NILAI BOD DAN COD AIR TERCEMAR LIMBAH PENCELUPAN Budiarsa Suyasa, I W.; Dwijani, Wahyu
Ecotrophic, Journal of Environmental Science Vol 2, No 1
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Colored of clothes has developed as concentrated in Denpasar area. The process has a negativeeffect because of waste, the resulting organic toxicants and heavy metal into aquatic system. The effect ofthe pollution including the river, well water and organism that live there. The research of bioremedialeffectiveness of herb-sand treatment system on laboratory simulation were studied in Denpasar, from June2004 to September 2004.For laboratory simulation, the plants were cultured in 25 cm sand bed, in between 5 cm palmfiber ofwhich were in between 10 cm pumicestone for the top and 5 cm gravel for the bottom with surface area of 25x 50 cm2.The result of treatment system showed that effective for decrease biological oxygen demandcompared to those of chemical oxygen demand parameters. The treatment system reduced significantly BODlevel respectively to 13,15 for 3 days, 11,19 for 10 days and 5,79 for 20 days with 85,55 – 93,63 effectively.While COD level respectively to 76,68 for 3 days, 61,38 for 10 days and 58,57 for 20 days with 42,78 – 56,50effectively. Time of treatment for 3, 10 and 20 days showed a little increase of pH from 6,87 to 7,00.
KUALITAS AIR BAWAH TANAH DI WILAYAH PESISIR KABUPATEN BADUNG. Sundra, I Ketut
Ecotrophic, Journal of Environmental Science Vol 1, No 2
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This research was conducted for ground water analysis in beach area in Badung Regencyin Pebruary and May, 2006 at 6 experiment location i.e. ground water in Tanjung Benoa,Nusa Dua, Kuta, Legian, Canggu, and Peti Tenget with purposive sampling method. Dataof those sites which were collected in situ as well as the output of the laboratories for 6experiment place during the rainy and dry seasons showed that 6 (TDS, nitrite, hardness,phosphate, BOD and COD) out of 20 parameters in those sites exceeded the standards forfirst grade of water (Kepmen LH No. 82 tahun 2001). Based on water quality status,Tanjung Benoa, Nusa Dua and Legian ground water show that bad dirty water. whileKuta, Canggu, and Peti Tenget ground water show that medium dirty water. It can beconcluded that water quality on these ground water in 6 ground water in coastal area inBadung Regency has not met the best water quality for drinking water.
HUBUNGAN PENGAMBILAN AIR PADA MATA AIR BEJI DESA DI DESA BAHA DENGAN KEBERADAAN SUBAK BULAN PASEDAHAN YEH SUNGI KECAMATAN MENGWI KABUPATEN BADUNG Letra, I Made; Merit, N.; Sunarta, N.
Ecotrophic, Journal of Environmental Science Vol 2, No 1
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ago. This traditional organization is socio-religious in nature based on the high spirit of cooperativework. It is very effective in support of the development of agriculture in Bali and it serves as an inheritanceof highly noble value so that it deserves to be conserved. Development in globalization and modernizationera indeed starts to push the subak culture either interms of pelemahan, pawongan, and parhyangan. SubakBulan pesedahan of Yeh Sungi Mengwi District Badung Regency whose irrigation water quite depends uponwater source has been disturbed since some of the beji water source of Baha village has been taken by otheruser.This study aims to know the impact of the taking of water from beji water source of Baha villageagainst the availability of irrigation water for Subak Bulan, the perception of subak members for the takingof the water and what is the relationship of the change of use of rice field in the Subak Bulan area with thetaking of water in the water source. The method employed is descriptive and corational method. Datacollecting by means of field observation in every water source and intake, interview with respondents usingquestionnaire for 48 respondents out of 303 Subak Bulan members.The findings show that the availability of irrigation water for Subak Bulan has its source from watersource and some of the water coming from the technical irrigation of Yeh Sungi quite fluctuates caused bythe change of season and the water debit from the upstream irrigation water because the location of SubakBulan is in the most downstream part of the irrigation network of Yeh Sungi. The availability of irrigationwater in each block (munduk) is not optimal. The perception of Subak Bulan to the taking of beji sourcewater of Baha village is that most of the villagers know this and they feel this is disadvantageous to them.There has been a change of land use in the area of Subak Baha as a result of water availability, economic,and social factor from 2000 to 2005 covering the area of 5.25 ha. The relationship between the change ofland use in Subak Baha and the taking of water in beji water source of Baha village shows negativecorrelation which is very significant at- 0.8875 caused by a number of factors among others being the time period for taking the water, opening ofnew roads, lack of water, land opening for settlement.It can be concluded that there is a lack in the availability of irrigation water of Subak Bahainequitably and it fluctuates as a result of the change of season. There is a need for replanning of blocks ofrice fields that need to be irrigated so that the source water of Subak Bulan and the interest of Baha villageare not dissatisfied therefore the source water should be well and fairly managed and preserved. The role ofthe government is also hoped in such a way that it serves as a mediator and makes regulations related to themanagement of the water resources available within the area of Subak Bulan.
PERAN SERTA MASYARAKAT DALAM PEMBANGUNAN Ardhana, I Putu Gede
Ecotrophic, Journal of Environmental Science Vol 1, No 2
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Community’s participation in development has been made since the enactment of 1945Constitution and constitutionally it has clear reference and it becomes the obligation ofanybody involved in the management of natural resources in Indonesia. However theparticipation of the community in the development in the reform era has shown the tendencyof running imperfectly. What is the condition of the community’s participation from thebeginning up to now does not yet have clear position in the form of authority and obligationand the right as community in making their participation in running the government is put intoa study. The method employed for the study is library research by using secondary datacoming from literatures, mass media, the specifications of legislations; comperative study wasalso made from various opinions and the understanding of community’s participation. Anumber of variables to be studied among others are: the specification of legislation, role ofgovernment, form of interaction of the implementation of community’s participation, andefforts made by the government within the context of community’s participation so thatdevelopment can be increased. From the study of the implementation of the legislationsinvolving community’s participation since old order until the regional autonomy era it has notyet run effectively and efficiently.
PENENTUAN KANDUNGAN LOGAM Pb DAN Cr PADA AIR DAN SEDIMEN DI SUNGAI AO DESA SAM SAM KABUPATEN TABANAN DIANTARIANI, NI PUTU; DHARMA PUTRA, K.G.
Ecotrophic, Journal of Environmental Science Vol 1, No 2
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Research on the heavy metal content, Pb and Cr in water and sediment of Ao River in Sam SamVillage, Tabanan Regency have been carried out. Sample of water taken at 8 location per week during 4weeks, while sample of sediment only taken once at 8 location. Determination of metal content of Pb and Crconducted using destruction method with mixture of HNO3 dan HCl (3:1) and analysed with AbsorptionAtomic Spectrophotometer.The result showed that mean metal content of Pb and Cr in water of Ao river at the location aftertextile industry (location 5 until 8) from four times intake of samples have passed enabled boundarythreshold that is 0,03 mg/L for Pb and 0,05 mg/L for Cr. Mean Pb content in sediment at location 1, 2, 3, 4and 5 still under natural content while location 6, 7 and 8 over the natural boundary threshold. Meanwhile forthe Cr metal only at location 8 over the natural boundary threshold. The highest metal content of Pb and Cr insediment and water found at location 8 that is each of 0,496 mg/L and 0,213 mg/L for Pb and Cr in water and141,844 mg/Kg and 33,489 mg/Kg for Pb and Cr in sediment respectively.

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