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Ecotrophic, Journal of Environmental Science
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.
Arjuna Subject : -
Articles 359 Documents
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IDENT IFIKASI ARAH REMBESAN DAN LETAK AKUMULASI LINDI DENGAN METODE GEOLISTRIK RESISTIVITAS KONFIGURASI WENNER ~ SCHLUMBERGER DI TPA TEMESI KABUPATEN GIANYAR I K PUTRA; M.S. Mahendra; I.P.G. Ardhana
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 7 No 1 (2012)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

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Abstract

Garbage Dump (GD) of Temesi which is located at Temesi village within 6.5 km south east of Gianyar city, which is geographically located at a point 8°33 south latitude and 115Q east longitude with an altitude ± 191 - ± 196 meters above sea level. The area of GD of Temesi about 4 ha, by limitation; North: field rice and population residences; East: field rice; South: field rice and West: field rice. GD of Temesi Gianyar has been collecting garbage about 198.52 m2 /day. GD of Temesi operates with open dumping, so that the leachate from garbage to pollute the enviorment and shallow ground water around the GD. This study ms conducted to know the direction of seepage and location of point accumulation of leachate at GD of Temesi Gainyar. This study was conducted with measuring soil layer values at GD of Temesi Gianyar, was taken eight tracks measurement. The method used in this study by using the geoelectric resistivity with Wenner configuration and Schlumberger configuration. The eight tracks are taken represent the overall of the soil layer condition in GD of Temesi Gianyar. The result of study showed that the tracks 1st, 2nd, 3rd, 4th, 5th, 6th, and ih was indicated that leachate seep on area in each tracks, however, in 8th tracks was not identified of leachate (8th tracks is located far from the GD and it's contours are higher than the tracks of garbage). Value of leachate resistivity ranged from 3.98 - 8.91 nm with a depth ranging from 1.55 - 6.91 meters. Most of leachate spread to southward of GD as far as more than 400 meters. Accumulated of leachate widely available at a distance of 20, 50, and 400 meters to the south of the GD of Temesi. The main factor is the south of the GD has a lower contour. Another factor affecting the leachate seeped into the south is the present of some field irrigation water from north to south across a stack of garbage.
PENGUSAHAAN TERUMBU KARANG SECARA BERKELANJUTAN (Studi Kasus Perubahan Usaha Terumbu Karang Alam ke Budidaya Terumbu Karang di Pulau Serangan, Kccamatan Denpasar Selatan, Kota Denpasar-Bali) ARSONETRI ARSONETRI
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 6 No 1 (2011)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

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Abstract

Illegal coral extraction (taking coral from nature) as an unsustainable effort affected the degradation of coral reef ecosystem and coastal environment. However, 1t continually happens in Indones1a, particularly in Scr,rngan Island, Bali. The stakeholder in coral extraction effort have gamed good advantages (benefits) making a legally and sustainable clTort such as coral culture still difficult. This study 1s specifically examines the methods of coral culture 1s better and profitable than the methods of coral extraction from nature. Thus, encouragmg all parlles involved (stakeholder), especially fishem1an to apply the coral culture. The research is observed and compared between coral extraction from nature fisherman and coral culture fisherman in Serangan Island, the feasibility, benefits and fisherman's perception. It is also explain the role of government toward of coral extraction and culture. 1he result shows the benefit or advantage of coral culture is higher than coral extraction from nature. It demonstrated by NPV (Net Present Value) and CBR (Cost Benefit Ratio) of coral culture is higher than coral extraction from nature. Therefore, coral culture is economically feasible to replace coral extraction from nature. The fisherman's perception is very pos1llve regarding coral culture effort and implementation replacing coral extraction from nature. In this effort, the government's role is very important in provision mcentive such as modal and subs1d1es, trainings and increasing fisherman capacity building, market insurance, and easier to obtain permits of coral culture.
IDENTIFIKASI SEKS RASIO TUKIK PENYU HIJAU (Chelonia mydas) DAN PENYU BELIMBING (Dermochelys coriacea) DI BERBAGAI PANTAI PENELURAN UTAMA DI INDONESIA DWI SUPRAPTI; Ida Bagus WINDIA ADNYANA; I Wayan Arthana
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 5 No 2
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

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Abstract

Sex ratio is highly dependent on incubation temperature. The optimum temperature of 28 ° C - 30 ° C can result in sex ratio 1: 1. The high temperature will be produced predominantly female hatchlings, and vice versa. The incubation temperatures influenced by some environmental factors such as rainfall, air temperature, air humidity, sand temperature, sand humidity, sand type and vegetation. This research carried out at the Sukamade beach - East Java, Sangalaki island - East Kalimantan and Jamursba Medi beach - West Papua. Results showed the unbalanced sex ratio of sea turtle hatchlings in each of study area. The Sukamade beach generated 75% of male hatchlings in nests under vegetation, 100% female hatchlings in the nest on open beaches, and 87.5% male hatchlings in the hatchery. While the sex ratio of hatchlings produced on Sangalaki island are 100% male in nests under vegetation, 72.22% male hatchlings in the nest on open beaches and 94.44% male hatchlings in the hatchery. On the Jamursba Medi beach produced 90.9% male hatchlings from nests on open beaches. Based on correlation analysis, a significant correlation showed between sex ratio and incubation temperature with significance of 0.01. While there is no significance correlation showed between sex ratios by environmental factors, with significance of 0.942 for the air temperature variable, 0.340 for the air humidity, 0292 for amount of the rainfall, 0799 for the sand fraction, and 0.331 for the sand humidity. All of these significance are greater than 0.05.
STRATEGI PENGELOLAAN KAWASAN LINDUNG MANUCOCO BERBASIS MASYARAKAT DI KOTA ADMINISTRATIF ATAURO, DILI TIMOR-LESTE Ernesto Matos Soares; I Made Antara; I Made Adhika
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 11 No 1 (2017)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/EJES.2017.v11.i01.p03

Abstract

MANAGEMENT STRATEGY OF MANUCOCO PROTECTED AREA COMMUNITY BASED IN ADMINISTRATIVE CITY OF ATAURO, DILI TIMOR-LESTEManucoco Protected Area is a mountainous conservation area which is very important for Atauro community because it functions as water catchment areas, especially water sources, important habitat for birds and other biodiversity, but there are still problems that occur such as deforestation, shifting cultivation, system of slash-and-burn cultivation, area zoning is not clear, the expansion of settlements and forest fires, all of these problems can give a less impact on ecological functions of the forest. The aims of this study are 1) to describe the perception of the public about the conservation of natural resources Manucoco Protected Area as a conservation area 2) to formulate management strategies for community-based Manucoco Protected Area. The data collection techniques used questionnaires, interviews, documentation, and focus group discussions, whereas the determination of the respondents used a purposive sampling method. To formulate a management strategy, internal and external factors were identified by using SWOT analysis. The results showed that the public perception of the function of the forest was that the forests had multiple functions, the public perception related to management policies showed that people did not know the forestry legislations. Public perception regarding the rights and obligations in the management strategy namely the public has the perception that forests are common property. Based on the SWOT analysis produced several community-based management strategies that can be used in the management of Manucoco protected areas as follow 1) Maximizing the primary function of forests, (2) Increasing public knowledge through an intensive socialization (3) Increasing the involvement or participation of the community 4) Encouraging the community-based forests protection through HKM 5) Acceleration of area zoning 6) Increasing related department supervision 7) Performing the empowerment of communities around the protected areas 8) Preparing management plans which needs to involve all stakeholders 9) Establishing the management unit in the village/sub-district levels.
ANALISIS LINGKUNGAN PERAIRAN UNTUK ZONA PENGEMBANGAN BUDIDAYA LAUT DI TELUK GERUPUK KABUPATEN LOMBOK TENGAH AGUS MULIADI PUTRA; I.W. Budiarsa Suyasa; M.S. Mahendra
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 7 No 1 (2012)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

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Abstract

This research aims to identify the water suitability and carrying capacity level based on marine culture activity used. The research treated on May to July 2011 at Gerupuk Bay, Subdistrict of Pujut, Central Lombok Regency. The methods used in this research are analyzing the parameter, processing the data, and analyzing the data based spatial named Geographic Information System (GIS). This analysis proves that Gerupuk Bay might be used as marine culture development area with total area 339,768 Ha. Highly suitable area with 60,343 Ha, is for seaweeds area. For grouper fish most of the area is marginally suitable area with 99,198 Ha, for moderately suitable is 68,105 Ha and for unsuitable area found is 112,122 Ha. After identifying the data, the total maximum carrying capacity area for seaweeds activity is 8 units for long line which 7 units (87,5%) have been used, and 18 units for floating raft method which 10 units (55,5%) have been used. The maximum total unit for the grouper fish is 26 units for net floating cages method whlch only 1 unit (4%) has been used. Finally, the conclusion of U1is research is that the water environmental for each marine culture activity is less then 50% of all area. For lhe estimation of the maximum carrying capacity of grouper fish is less then 50%, in other hand the maximum carrying capacity of seaweeds is up to 50%.
ANALISIS VEGETASI MANGROVE UNTUK STRATEGI PENGELOLAAN EKOSISTEM BERKELANJUTAN DI TAMAN NASIONAL BALI BARAT I Ketut Catur Marbawa; Ida Ayu Astarini; I Gede Mahardika
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 8 No 1 (2014)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

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Abstract

This research was conducted in the coastal areas of Bali Barat National Park in March-June 2012. The goal is to determine the composition and structure of mangrove vegetation in Bali Barat National Park, the extent of damage and the level of criticality of mangroves in the area of ?? Bali Barat National Park and to determine management strategies for sustainable mangrove ecosystems in Bali Barat National Park. This study employed observation method with Line Transect sampling techniques and Sample Plots (Transect Line Plot) which is perpendicular to the shoreline landward. Data were analyzed using analysis of vegetation. Results showed mangrove vegetation in Bali Barat National Park consists 5 families major mangrove with 13 mangrove species and 5 families with 5 species of minor mangrove. In Gilimanuk Bay Important Value Index (IVI) for the highest phase of seedling was Excoecaria agallocha by 78.00%, sapling phase C. tagal amounted to 91.61% and the phase of the tree was Sonneratia alba by 103.76%. Shannon Diversity Index (H’) of mangrove vegetation in Gilimanuk Bay between 0.3630 to 0.7419 with a low category. In Terima Bay the highest IVI phase of seedling was Ceriops decandra by 78.33%, sapling phase C. decandra by 162.41% and the phase of tree was E. agallocha amounted to 85.06%. H’ mangrove vegetation in Terima Bay between 0.0000 to 0.7889 with a low category. In Banyuwedang Bay the highest IVI phase of seedling was E. agallocha by 63.08%, sapling phase was Ceriops tagal amounted to 86.28% and the phase of tree was E.agallocha of 79.98%. H’ mangrove vegetation in Banyuwedang Bay between 0.0000 to 0.7889 with a low category. In Menjangan Island the highest IVI phase of seedling was C. tagal by 63.69%, sapling phase C. tagal amounted to 66.66% and the phase of tree was E. agallocha by 109.08%. H’ Menjangan Island mangrove vegetation ranged from 0.3991 to 0.8217 with a low category. The level of damage based on Mangrove Damage Criteria according to Minister of Environment Decree No. 201 of 2004 seedlings and saplings phase, the density of each species included in the very dense criteria (good) and phase trees included in the rare criteria (damaged). The critical level of mangrove vegetation based on the formulation of the Directorate General of Land Rehabilitation and Social Forestry, Ministry of Forestry in 2005, mangrove vegetation in the Bali Barat National Park can be classified Not Damaged. Bali Barat National Park mangrove aquatic environment is conducive to support the stability and development of mangrove vegetation in the future as a result of physical and chemical parameter measurements mangrove aquatic environment is still below of standard.
PELAKSANAAN PENGELOLAAN DAN PEMANTAUAN LINGKUNGAN BERDASARKAN DOKUMEN RKL & RPL SERTA CORPORATE SOCIAL RESPONSIBILITY (CSR) DI PT. TAMAN NUSA GIANYAR I Komang Tri Sumandiarta; IPG Ardhana; Made Sudiana Mahendra
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 10 No 2 (2016)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/EJES.2016.v10.i02.p03

Abstract

Taman Budaya Nusantara is one of the tourism site that is located in Gianyar which being managed by PT. Taman Nusa. The negative impact from tourism site is an enhancement of environmental destruction. This research aims to analyze the adherence implementation of the Environmental Management Plan document (RKL), Environmental Monitoring Plan document (RPL) and the implementation of CSR Program. The methods that used were in the research are case approachment (The Case Approach), Legislation approachment (The Statue Approach), and Conceptual approachment (Analytical and ConcePT. ual Approach). The result of the research shows that PT. Taman Nusa did not comply to the terms of legislation according to the implementation of EIA document five aspects, is Permitting, Water Pollution Control, Air Pollution Control, Hazardoces Waste Management and Solid Waste Management. PT. Taman Nusa has fulfilled obligations in carrying out its social responsibility, economic and environment by actualizing the CSR program according to the Article 74 of Constitution No 40 of 2007 about Limited Liability Company (PT). The implementation of CSR program covers 14% of the total Sidan village. PT. Taman Nusa Should perform a reparation in managing and controlling the environment according to the rules of constitution which have been suggested by local government through the BLH Gianyar to do some evaluation and reviewing the AMDAL Document of PT. Taman Nusa and conductlinkagemappingof stakeholder sandterritoriesforthe implementation of theoverallCSRprogramin the VillageSidan.
STUDY OF RUNOFF IN UNDA WATERSHED SATRIA WAHYU 0ETOM0; Takahiro Osawa; I Nyoman Merit
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 6 No 2 (2011)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

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Abstract

When rain falls on the earth, it just does not sit there, it starts moving according to the laws of gravity. A portion of the precipitation seeps into the ground to replenish Earth's groundwater. Most of it flows downhill as runoff. Runoff is extremely important in that not only does it keep rivers and lakes full of water, but it also changes the landscape by the action of erosion. The purpose and objective in this study are to estimate the conditions of land cover of Unda Watershed based on the results of image processing, to estimate the monthly average runoff and discharge in outlet of Unda Watershed from 1999 to 2003. The research location is in Unda Watershed. This watershed lies in Province of Bali which has wide 233.1 km2 (23.310 Ha) (Balai Wilayah Sungai Bali-Penida). Administratively this watershed lies in 3 Regencies that are Karangasem, Klungkung and Bangli Regency. Mostly the region lies in the Karangasem Regency. In this research, the monthly rainfall data employed to generate the runoff process. Analyze of contour map from topography map obtained the watershed area, physical parameter of river and concentration time. In this research used monthly average rainf all data (from 1999 to 2003) from Pempatan, Besakih, Singarata, Sidemen, Klungkung, Telengan, Rain Gauge Station and Polygon Thiesen method employed to analyze the datas. Apart of rainfall, there are a number of site specific factors which have a direct bearing on the occurrence and volume of runoff, they are soil type, land cover and slope. The soil types in this research area are all Regosol, this soil mapping does not need to be overlayed in obtaining the land unit. Analyze of land cover was employed by Supervised Classification method. By image processing obtained land cover of Unda Watershed estimated consists of 38.129 km2 of forest area (16.357°Ai), 19.122 km2 of grassland area (8.203%), 100.991 km2 of farmland area (43.325%), 62-412 km2 of area housing (26.775%), 2.625 km2 of water area (1.126%), 4.046 km2 of cloud area (1.736%), 2.327 km2 cloud shadows (0.998%) and 3-448 km2 of stone area (1.749%). The results of runoff by Nakayasu Unit Hydrograph and Melchior Method gives quite similar patterns. The Melchior method gives higher runoff values. This method estimates total runoff while Nakayasu Unit Hydrograph estimates runoff by dividing rainfall into hours. By Nakayasu Unit Hydrograph Method showed the average of monthly average runoff were 10.61 m3/s and 18.67 m3/s by Melchior Method. The different percentage between these methods was 59.71%. By summing runoff and the baseflow obtained river discharge and the average of river discharge in this thesis was 22.63 m3/s. Observed river discharge from Water Level Recorder (WLR) Unda Dam was used in validation, the average of monthly average river discharge was 18.24 m3/s. The different percentage between these methods was 66.37%.
PENGGUNAAN LUMPUR AKTIF UNTUK MENURUNKAN KADAR Biological Oxygen Demand (BOD), Chemical Oxygen Demand (COD), dan LOGAM BERAT JENIS TIMBAL (Pb) dan CADM IUM (Cd) PADA LIMBAH CAIR PENCELUPAN INDUSTRI BATIK RAFICHA RACHMA; I W REDI ARYANTA; I.W. Kasa
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 7 No 2 (2012)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

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Abstract

In the production process, batik dyeing industry use a lot of water and chemicals in the coloring or dyeing fabric dyeing wastewater batik. Batik dyeing waste industry typically have concentrations of chemical oxygen demand (COD) and biological oxygen demand (BOD) and heavy metals that exceed quality standards set by the government. In an effort to overcome the problems posed by wastewater, the wastewater treatment process must be done before the waste is discharged into aquatic environment. One of the biological wastewater treatment system that is able to reduce levels of contamination are industrial wastewater is activated sludge system. This research was conducted to determine the optimal time and time effectiveness of treatment with activated sludge to reduce levels of COD, BOD, and Pb in the batik industry wastewater. In this research using activated sludge by taking a fixed volume on sampling from hour o to hour 24 so as to produce organic compounds that remain much lower concentrations can result in COD, BOD, and Pb. This is because the longer the settling time of the volume of waste activated sludge with variable sampling and at the same time a decrease in the percentage levels of COD, BOD, and Pb greater. The results of this research found that activated sludge best influence in lowering the levels of COD, BOD, and Pb. This is due to the activity of microorganisms that have given nutrient and insufficient oxygen in aeration process with the longest time that the ability of the microbes in the sludge to oxidize organic materials with the highest effectiveness in the waste. After going through treatment with activated sludge showed that the optimal time of activated sludge treatment to decrease the levels of COD in wastewater dyeing batik industry is 12 hours, the reduced levels of BOD is 12 hours, and to decrease levels of Pb is 8 hours.
BOTTOM TYPES IDENTIFICATION IN SHALLOW CORAL REEF ECOSYSTEMS USING IMAGERY SATELLITE DATA MASITA DWI MANDINI MANESSA; TASUKU TANAKA; Takahiro Osawa
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 7 No 2 (2012)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

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Abstract

Satellite data provide information about spectral signatures of objects in detail, based on the wide range of spectral wavelengths. Bottom types in a coral reef Ecosystems are diverse and each object has a different spectral signature. The aim of this research is to define bottom types using Multispectral and Hyperspectral imagery satellite data. Six processes were applied to Hyperspectral Images to identified bottom types using modification of Analytical Imaging and Geophysics LLC (AIG) hyperspectral analysis. The multispectral analysis was focused on correcting water column noise by applying the radiative water column algorithm (Lyzenga, 1978, 1981) and the modified image correction algorithm (Lyzenga et al., 2006). The results showed that multispectral image analysis was able to identify a fine complexity of b bottom types classes with 68.57% overall accuracy. In contrast, Hyperion image identified a coarse complexity of bottom types classes with 61.57% overall accuracy. This low result was caused by low spatial resolution which created a mixing pixel around image of thin and narrow shallow coral reef ecosystem. Spatial resolution, atmosphere and water scattering played an important role in bottom types identification.

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