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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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MODEL PEMBERDAYAAN MASYARAKAT SEKITAR KAWASAN HUTAN LINDUNG JOMPI KABUPATEN MUNA, PROVINSI SULAWESI TENGGARA DASMIN SIDU
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

Forest as an asset of national development is really beneficial for life and livelihood. It brings benefits ecologically, culturally, and economically on condition that the forest is properly exploited. For that purpose, forest should be managed, protected, and exploited continuously for the sake of the people's welfare, not only for the present but also for the next generation. Jompi Preserved Forest Area is one of the preserved forest areas in Muna Regency, which is now in very bad condition. The people living around the forest are powerless. This research aims: to formulate a model of community empowerment adjusted to the local condition. The technique of collecting samples used is cluster sampling, covering 226 heads of family. The analysis used is correlation analysis of Rank Spearman (r5), Multiple Regression, and Path Analysis. The result of analysis shows that the people's productivity and capability are still relatively low. This condition is resulted from the physical, human, and social capitals in the community. Similarly, the low capability of the empowerment facilitators and empowerment process also contribute to this situation. The effective empowerment model for the community around the preserved forest is the one that integrates the physical, human, and social capitals, and the facilitators' capability and empowerment process to create the power that can improve the productivity and capability of the community living around the Jompi Preserved Forest Area.
KOMPOSISI DAN STRUKTUR VEGETASI MANGROVE DI PANTAI TANJUNG BASTIAN KABUPATEN TIMOR TENGAH UTARA PROVINSI NUSA TENGGARA TIMUR LUDGARDIS LEDHENG; IPG ARDHANA; I KETUT SUNDRA
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 4 No 2
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

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Abstract

This research was carried out in Tanjung Bastian Beach, on February and March 2009. The aim of this research is to identify composition, structure and environment condition of mangrove vegetation in Tanjung Bastian Beach, North Middle East Regency, Province of Nusa Tenggara Timur.Research method used was observation and squares sampling technique that straight with beach line toward upland. Data was analyzed using vegetation analysis.The result of this research shows that Tanjung Bastian mangrove with mangrove thickness about 50 – 1000 m, arranged by 29 type mangrove vegetation which consist of 11 major mangrove, 5 minor mangrove and 13 mangrove associate. In the A location where the activity was high, Significant Value Index of plant level and highest plant, dominated by Bruguiera gymnorrhiza 79,49% and 99,88%, while for pole level and seedling, dominated by Rhizophora apiculata 106,93% and 50,02%. In B location, the highest INP of plant level, pole and seedling dominated by B. gymnorrhiza with score 62,03%; 99,57%; 108,52% and 48,22%. B. gymnorrhiza also dominates for plant level, pole and seedling in C location with each value 55,05%; 49,68%; 69,39% and 35,81%. B. gymnorrhiza is predicted to dominate mangrove trees population in the Tanjung Bastian mangrove area. This is indicated with high population of seedling level and pole in the location with medium activity level and nature forest. Vegetation Variety Index Tanjung Bastian beach mangrove range between 0.6774 -1,1513, catagorized as poor.Destruction level of mangrove vegetation in C location nature forest is still in good category, while for B and A location medium and high activity is categorized as damage mangrove forest according to SK MENLH RI No. 201 Year 2004, about Standard Criteria and Standard of Mangrove Damage Principle.Condition of basic substrate in Tanjung Bastian mangrove dominated by sandy loam with organic-C range between 0,40 -4,04%. N value, range between 0,03 -0.12%, P, 12,72 -44,47ppm, while K rate, 202,81 – 671,42 ppm. Mangrove temperature condition range between 28,87 – 30,950C, with pH rate 7,5 -8,0 and salinity range between 30 -33%o.
STUDY OF ESTIMATE CONCENTRATION OF WATER CONSTITUENTS AT BADUNG STRAIT BALI USING INVERSE MODEL I Ketut Swardika; Takahiro Osawa; I Wayan Arthana
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 1 No 2
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

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Abstract

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
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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (200.745 KB) | DOI: 10.24843/EJES.2017.v11.i02.p06

Abstract

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
LAND SUBSIDENCE IN SEMARANG SUPRABADEVI A.S.; Takahiro Osawa; I Nyoman Merit
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

This research aims to identify monitoring land subsidence in Semarang has been done using raster data operation of the DEM in GIS environment. Digital representation of relief of Semarang area was generated from a point map which contains elevation data. The last update of the elevation data was made using geodetic, using Global Positioning System (GPS). Decrease in land distribution is estimated from the data of GPS Geodetic years 2008-2011, in the Semarang area north, west, central, east and south. Reduction in the range of 2008-2009 reached -12.4 cm, then increased in 2009-2010 to be -20-4 cm and -10.5 cm fell back to the years 2010-2011. Decline in the face of the land in Hyderabad occurs mainly in the n01th, east, central and south of Semarang. Subsidence causing damage to infrastmcture, buildings, and results in moving tidal lowlands.damage potential economic loss is cracks in buildings and infrastmcture (roads and bridges), the number of homes that have been tilted and nearly drowned. In addition to direct losses, reduction in ground level also cause indirect losses that rob the increasingly widespread flooding in the northern region of Semarang.in 2008- 2010 June-July with a high tide occurs o.6 cm from the surface of the sea water in the area of Semarang.
KARAKTERISTIK PERAIRAN RAWA BANGKAU DAN KERAGAMAN IKAN DI KABUPATEN HULU SUNGAI SELATAN PROPINSI KALIMANTAN SELATAN Rizmi Rizmi
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 5 No 1
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

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Abstract

This research aim to know kind of diversity of aquatic organisms and water quality of their habitat, that representate ecological condition of the waters, specially population dynamics of palustrine?s fishes in swamp Bangkau. Result of research indicate that condition of bio-physics and chemical quality of swamp Bangkau?s palustrine waters still be good enough relative, though by parsial there are parameter of quality of waters showing critical value like dissolved oxygen. But the condition quality of the waters represent specific quality of palustrine that found in South Kalimantan. Fishes sampling using rengge (gill-nets), pancing ( hand-line) and serok (hand-nets). Yields during observation amount to 16.368 individu, found 13 family and 26 species. Diversity Index value (H?) about 2,346 - 3,640. Eveness Index value range from 0,499 - 0,747 and Index Dominancy value show about 0,108 - 0,297. Station V show more environment suited for various species of fish from general till rareness species, causing variety species were founded with high value of Diversity index (H'), Eveness index (E) and Domination index (C).
STUDI KUALITAS AIR TANAH DANGKAL DAN PENDAPAT MASYARAKAT SEKITAR TEMPAT PEMROSESAN AKHIR SAMPAH SUWUNG KECAMATAN DENPASAR SELATAN, KOTA DENPASAR I. W. Agus Eka Subrata Jaya; I Wayan Suarna; I Wayan Redi Aryanta
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 10 No 1 (2016)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (168.922 KB) | DOI: 10.24843/EJES.2016.v10.i01.p10

Abstract

Research has been conducted to determine the quality of shallow groundwater (dug-wells and shallow bore-wells) and the local communities opinions around the landfill Suwung. The method of determining the station was done by purposive sampling, where the station sampling was determined by selecting a place which was expected to represent the whole area.Water sampling of dug-wells was conducted by using a water sampler and the shallow bore-wells using a 2-liter bottle. Data was analyzed by descriptive comparative referenceto class I water quality of the Bali Governor Regulation No.8 of 2007. The public opinion data was obtained by using aquesioner filled by respondents who have and use wells and shallow bore wells for their daily needsand it was analyzed by using frequency distribution tables.The results showed that the quality of shallow groundwater (dug-wells and shallow bore-wells) did not meet water quality standards in accordance with the rules of the class defined in the Governor of Bali Regulation No. 8 of 2007. The water pollution index (PI) of dug-wells at a distance of 1-400 meters was in hearily polluted category, while water fromshallow bore-wells drilled at a distance of 1-200 meters was in the category of hearily polluted and at a distance of 201-400 meters was in the category of medium polluted.There was an increasing range of groundwater quality deterioration in 1997, 2008 and 2014. In 1997, contaminated shallow groundwater has occured at a distance of 80 meters, while in 2008, the pollution has occurred up to a distance of 375 meters and in the year of 2014 the contamination occurred from a distance of 1 meter to 400 meters. The average of score Pollution Index (PI) of Water wells in the year of 2008 amounted to 14.55, while in 2014 up to 15.44. It is estimated that the water quality of dug-wells and bore-wells will meet the quality standards in accordance with the value of the pollution index at a distance of over 5000 meters and 750 meters of the Suwung landfill waste.Most of the respondents who live in the vicinity Suwung landfill waste tend to give an opinion that the shallow groundwater (dug-wells and shallow bore-wells) has decreased quality as drinking water. Approximately 75% of respondents thought that the well water in their environment has been reduced in quality.
KERAGAMAN MIKOFLORA TANAH PADA HABITAT TANAMAN PISANG DI BALI l MADE SUDARMA; D.N. SUPRAPTA; Rai Maya Temaja
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

Fungi in the soil plays an important role in maintaining the health and quality ofland, one of several indicators of soil health that is the diversity of soil fungi. This study was done in order to know the soil fungi diversity in the soil of banana plants habitat. The soil samples were collected from three regencies in Bali, i.e. Karangasem, Klungkung and Jembrana which are the main banana growing areas in Bali. Soil sampling was done in two sites in each regency, by collecting 100 grams of soil surrounding the banana plant at the depth of 20 cm, with three replication. Soil microbes population density particularly for bacteria, fungi and actinomycetes were determined based on plate account technique, while the microbes diversity was determined based on Diversity Index of Shannon-Wiener. Diversity index of soil fungi of all soil samples ranged from 0.8785 to 2.1458 (criteria oflow to moderate), with population densities ranging from 1.1 x 104 to 2.8 x 104 cfu / g soil. Evenness index at all sites soil samples obtained ranged from 0.6688 to 0.9766, this means the fungus species found there are no outstanding domination. Similarity index on all soil samples showed less than 0.5, which means one does not have a kinship with each other. Physicochemical factors that affect population density of soil fungi on the banana plant habitats: organic C, total N, available P, available K, soil moisture content (air dry capacity and field capacity), sand and clay. W hile soil physicochemical factors that influence the number of species (diversity) of soil fungi namely: C-organic content, total N and the dust has positive influence on the number of species in banana plants habitat, whereas soil sand content negatively affected the number of types of soil fungi.
ANALISIS TINGKAT KERENTANAN PENCEMARAN AIR TANAH PADA WILAYAH PENAMBANGAN DAN PENGOLAHAN EMAS RAKYAT DESA PANCURENDANG, KABUPATEN BANYUMAS Eni Muryani; Dayu Aviana Rahmah; Dian Hudawan Santoso
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 13 No 2 (2019)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (213.256 KB) | DOI: 10.24843/EJES.2019.v13.i02.p04

Abstract

The people's gold mining and processing activities have an impact on the surrounding environment. Some residents immediately dispose of waste from gold processing into the environment. Therefore, analysis of the level of vulnerability of pollution is needed to determine the size of the level of difficulty and ease of contaminated substances to influence water quality, both surface water and groundwater. The purpose of this study was to analyze the level of vulnerability of groundwater pollution around the study area. The method used in this research is survey method and field mapping, sampling method: purposive sampling, laboratory analysis method, mathematical method, and descriptive evaluation method. The calculation to determine the level of vulnerability of pollution is the DRASTIC method for groundwater vulnerability with 7 parameters, namely groundwater depth, rainfall, aquifer type, soil texture, slope, slope, unsaturated zone type, and hydraulic conductivity. Based on the results of the study it was known that the study area had 2 classifications of the level of vulnerability of groundwater pollution, namely the moderate and high classification. Areas that are located in the direction of groundwater flow and are lower than pollutant sources will potentially be more polluted. Keywords : DRASTIC, Pollution, Groundwater, Gold Mine
STUDI KUALITAS PERAIRAN PANTAI DI KAWASAN INDUSTRI PERIKANAN, DESA PENGAMBENGAN, KECAMATAN NEGARA, KABUPATEN JEMBRANA Ary Poppo; M S Mahendra; I Ketut Sundra
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 3 No 2
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

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Abstract

Bali Strait represent the strait dissociating Bali Island with Java Island. As an area of fishing zone, Bali Straitowns a significant fishery potency, especially lemuru fish (Sardenella lemuru). For the facility of fisherman haul,governmental developed the Center of Fish Landing which is located at Pengambengan village of Negara Subdistrict.Within the area also exists the fishery industries which is operated for fish canning and fish meal.The aim of this research was to determine the properties of pollutant from waste water that was produced byfishery industry, as well as to know the quality of coastal waters destined for the aquatic life that produced by industrialactivity.The sample of sea waters was taken from 11 locations and one sample was taken from waste water effluent one ofone factory at Pengambengan village. The result of analysis was used to calculate the pollution index and comparationwas made to the Governor Regulation Number 8 year 2007.The finding of the study shows that the pollutant properties of the waste water produced by fishery industry haveexceeded the maximum level of quality standar covering parameters of TSS, TDS, BOD5, COD, sulfide hydrogen (H2S),degree of acidity (pH), and ammonia (NH3). Calculation result of respective sampling location, shows that the value ofthe pollution index varied from slight, medium, and heavy pollution levels.

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