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INDONESIA
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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ESTIMATION AND MAPPING OF ABOVE GROUND BIOMASS OF MANGROVE FOREST USING ALOS-2 PALSAR-2 IN BENOA BAY, BALI, INDONESIA IGA Indah Mahasani; Takahiro Osawa; I Wayan Sandi Adnyana
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 15 No 1 (2021)
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.2021.v15.i01.p07

Abstract

Mangrove forests are distributed in limited areas around along costlines, but they play important role in carbon fixation and carbon storafe in the tropic areas. Mangrove forests are a transitional ecosystem between land-based oceans, most of which are well-known along the tropic and subtropical coastlines. Mangrove ecosystems have an ecological function as an absorber and storage of carbon in the form of biomass. Remote sensing technology can include data spatially and temporally. This makes it easy to predict the overall extent and carbon stock. So that in the context of sustainable management of mangrove ecosystems it can be utilized to monitor mangrove carbon balance and become the basis for policy development. The objective of this study was to determine the potential above ground biomass model from ALOS-2 PALSAR-2 data in mangrove forests of Benoa Bay, Bali. In this research, the filter used is frost filtering. AGB model was constructesd by using dual-polarization L-band SAR of ALOS-2 PALSAR-2 data and field inventory plots. 40 plots were collected in the field and the allometric equation. The prediction model for aboveground biomass potential based on the ALOS-2 PALSAR-2 image on HV polarization in the mangrove Benoa Bay area, the correlation value (r) of 0.82, the coefficient of determination (R2) of 0.68. Validation model aboveground biomass-based, correlation value (r) of 0.90, the coefficient of determination (R2) of 0.82, and RMSE of ± 39.85. The potential of aboveground biomass and carbon stock in the mangrove Benoa Bay area is 364,241.87 Mg and 171,193.67 Mg C with the ability to absorb carbon dioxide (CO2) of 628,280.81 Mg CO2 Sequestration same with 3 bottles in 2020.Keywords: Mangrove; Aboveground biomass (AGB); HV Polarization; ALOS-2 PALSAR-2.
MODEL PENGENDALIAN PENCEMARAN AIR WADUK BATUJAI DI LOMBOK TENGAH, NUSA TENGGARA BARAT Supardiono Supardiono; I Wayan Arthana; I Wayan Sandi Adnyana; I Wayan Budiarsa Suyasa; I Nyoman Sudipa
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 15 No 1 (2021)
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.2021.v15.i01.p12

Abstract

Water quality management efforts need to be carried out in a sustainable manner to ensure that water resources are free from pollution. Water is an important component in human life, therefore the existence of water in nature must be maintained to ensure the continuity of human life. Decreasing water quality is caused by pollutant loads that enter water bodies due to human activities disposing of waste directly into the water. Batujai Reservoir is one of the vital objects for the survival of the people of Central Lombok. In an effort to control water pollution in the Batujai Reservoir, a model that is capable of managing Batujai Reservoir water is needed in a sustainable manner. The purpose of this research is to develop a model capable of managing the water in the Batujai Reservoir in a sustainable manner. The research methodology uses a quantitative approach using primary data from interviews with figures and experts as well as secondary data from literature studies and previous research data. Data analysis used the Interpretative Structural Modeling (ISM) approach. ISM is able to simplify complex relationships to be simple and form a hierarchy between existing relationships and be able to describe them in the form of system modeling. The results showed that the water pollution control model in Batujai Reservoir was carried out by involving all relevant stakeholders by placing academics, NGOs and Central Lombok Bappeda as the main drivers of program implementation and using the local wisdom approach.Keywords: pollution, control, water, model, batujai.
STUDI OPTIMALISASI KOMPOSISI GLISEROL DAN KITOSAN TERHADAP KARAKTERISTIK SIFAT FISIK PLASTIK BIODEGRADABLE DARI LIMBAH NASI AKING DAN TEPUNG TAPIOKA Nisa Nurhidayanti; Indah Yulian Kusuma Wardani; Nur Ilman Ilyas
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 15 No 1 (2021)
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.2021.v15.i01.p03

Abstract

Aking rice is rice waste that is no longer suitable for public consumption, however, the high starch content of aking rice can be used as a raw material for making biodegradable plastics. Good biodegradable plastic made from cassava starch and rice flour, to increase its elasticity and extensibility it is necessary to add chitosan additives and glycerol plasticizers. This study aims to determine the optimum conditions for the composition of glycerol and chitosan for the physical properties of biodegradable plastics made from aking rice and tapioca starch. Biodegradable plastics in this study were made with 3 grams of aking rice flour and 7 grams of tapioka flour with the addition of variations in the composition of chitosan (3 grams, 5 grams, and 7 grams) and the addition of variations in the composition of glycerol (2 ml, 4 ml, 6 ml, and 8 ml). As a result, the highest tensile strength value at 7: 2 composition variation is 41.29 MPa, the highest elongation percentage at 3: 8 composition variation is 135.8%, the highest water resistance at 7: 8 composition variation is -206%, the highest percent water absorption and the fastest biodegradation process at a variation of the composition of 3: 2, namely 1603% and completely degraded on the 4th day.Keywords: aking rice, biodegradable plastic, chitosan, glycerol and tapioca starch.
EVALUASI KONDISI KUALITAS AIR BERDASARKAN DAMPAK BEBAN PENCEMARAN TERHADAP SEBARAN OKSIGEN TERLARUT DI SUNGAI GUNUNG PASANG KABUPATEN JEMBER Elida Novita; Bawon Rani Yudhika Anwar; Hendra Andiananta Pradana
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 15 No 1 (2021)
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.2021.v15.i01.p08

Abstract

Gunung Pasang River is as raw water supply for the human activity. However, it is utilized as waste disposal from community activities, agro-tourism, and rubber factories. These activities have the potential to reduce water river quality. The efforts to river pollution prevention that can be taken are to examine for capacity of the rivers to reduce pollutant naturally. The research focused to analysis the pollution load, oxygen dissolved distribution (deoxygenation and reoxygenation rate), and the total pollution load of the Gunung Pasang river utilized the Streeter-Phelps formula. The study was conducted in November – December in 2019 at the Gunung Pasang River with a river length of 300 m which was divided into 3 segments with 4 monitoring points (GP01, GP02, GP03, GP04). Analysis of the parameters i.e. DO and BOD to measure the water quality degradation in the river and the resulting graph of oxygen reduction. The method refers to Minister of the Environment Decree no. 110/2003.The results showed that the average pollution load value was 6.32 kg/day. The range of deoxygenation and reoxygenation rates is 2.67 - 5.36 mg/L.day and 32.77 - 64.71 mg/L.day respectively. The Reoxygenation rate was greater than deoxygenation. This phenomenon reflected that the Gunung Pasang River has a good self – purification performance. The average pollution load capacity of the river is 2.17 kg/day.Keywords: total pollution capacity; oxygen distribution; self – purification; water quality monitoring.
STRATEGI PENGELOLAAN EKOSISTEM TERUMBU KARANG DI DAERAH WISATA AIR TANJUNG BENOA DAN JEMELUK AMED, BALI Ni Made Ary Widiastiti; I Wayan Arthana; Ida Ayu Astarini
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 15 No 1 (2021)
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.2021.v15.i01.p04

Abstract

Tanjung Benoa and Jemeluk Amed are two famous marine tourism sites in Bali. This study aims to determine the state of coral ecosystem in its life form, factors associated with coral damage, and the strategy to manage coral in those two area. We used two methods: Line Intercept Transect (LIT) and SWOT. The live coral coverage condition in Tanjung Benoa is in moderate and worse category. While the Jemeluk Amed is in moderate level and good condition, respectively. Factors causing damage to coral ecosystem are: the corals are under pressure, some corals are already bleaching, the anchoring activity and oil spill from ships, and algae. The coral reefs ecosystem in Tanjung Benoa and Jemeluk Amed can be sustained in good condition with government support and NGOs in the development of environmentally friendly activities and monitoring studies, implementation of coral reef preservation rules (prohibition of taking coral reefs) and colaboration of the community, government, and NGOs to carry out coral reef rehabilitation and monitoring studies. As one of the tourism area in Bali, the role of universities are needed for continuous research on the state of coral reefs to maintain environmentally friendly and sustainable tourism.Keywords: Coral reef; Life form; Strategy; Marine conservation.
FAKTOR-FAKTOR YANG MEMPENGARUHI PERSEPSI TIM PENILAI AMDAL STUDI KASUS PROVINSI SULAWESI UTARA Dena Natalia Langi; Qomariyatus Sholihah; Rita Parmawati
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 15 No 1 (2021)
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.2021.v15.i01.p09

Abstract

EIA is part of several instruments to prevent pollution and environmental damage, and in order to improve its quality and effectiveness, EIA document will be assessed by the EIA Assessment Commission depending on its authority. The assessment ability of the EIA Assessment Commission is also influenced by perceptions, so it is necessary to analyze the influence of internal and external factors on the perception of the EIA Assessment Commission in North Sulawesi, so it can provide good suggestions and input for better regional development and towards environmental sustainability. The research sample were 57 respondents and then used in-depth interviews guided by the questionnaire to digging information. The data obtained were then analyzed using Partial Least Square (PLS) to observe the impact of internal and external factors on the perception of the EIA Assessment Commission. Internal factors including age, education level, and family responsibilities do not significantly affect the level of perception, while internal factors such as experience and integrity as well as all external factors have a significant effect on perception. Work experience has a strong impact on the perception of the EIA Assessment Commission to always support the environmental conservation movement and integrity have an impact on the emergence of rational and fair decision makingKey words: EIA, Integrity, Assessment, Perception.
STRATEGI PENGELOLAAN LINGKUNGAN DI DANAU BUYAN KABUPATEN BULELENG Ely Santari; Syamsul Alam Paturusi; A.A.P. Agung Suryawan
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 15 No 2 (2021)
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.2021.v15.i02.p03

Abstract

This research aimed to determine the potential of ecotourism that can be developed and to analyze visitor perceptions and to formulate environmental management strategies for development of ecotourism in TWA Danau Buyan. The method used in this research was descriptive qualitative with the techniques, namely observation, interviews and questionnaires. The result of this indicate that the potential tourist attractions in TWA Lake Buyan area already exist including jungle tracking, camping, cannoing, selfie spot, outbond locations that have paid attention to environmental issues by involving the community. The perceptions of visitors were based on the function of the area, management policies, tourism activities, facilities and infrastructure, and on the willingness to stay generally quite good. Based on the IE table, the management strategy matrix was ??in quadrant V (Five) or in the hold and maintain and survival phase. These strategies included: a) Developing the unique potential in TWA Lake Buyan both natural resource potentials such as biodiversity (flora and fauna), landscape beauty, and community socio-cultural potential that could be developed and packaged into ecotourism package, b) Increasing support from the local government and participation of local communities to optimize the quality improvement of ODTW TWA Danau Buyan, both facilities and infrastructure tourism, public facilities, human resources, and increasing the promotion of cultural and spiritual tourism to foreign tourist, c) Increasing supervision in field, increasing guidance and counseling on the benefits of tourist attraction to the community, as well as inviting the public and tourists to actively participated in preserving the forest and existing tourism objects (environmentally friendly tourism awareness activities), d) Build cooperation and synergy with competent stakeholders, including the Tourism Office, the KSDA unit, the Agriculture Office, Academics, Non-Governmental Organization, local community organizations, and open for opportunities to do collaboration with the surrounding community. Keywords: Strategy Management, Ecotourism, Nature Tourism Park, Buyan Lake
PENILAIAN STATUS DOMAIN SUMBER DAYA IKAN LEMURU DENGAN PENDEKATAN EKOSISTEM YANG DIDARATKAN DI PPI KEDONGANAN, BALI Ketut Tika Suariningsih; I Wayan Restu; Made Ayu Pratiwi
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 15 No 2 (2021)
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.2021.v15.i02.p08

Abstract

PPI Kedonganan is a fish landing base located in Kedonganan Village, Kuta District, Badung Regency. One of the fish commodities that landed at PPI Kedonganan is Lemuru Fish (Sardinella lemuru). The high rate of catching Lemuru must be balanced with proper management so that Lemuru Fish Resources remain sustainable. This study was conducted to determine the status of the utilization of Lemuru fish resources. The study was conducted from January 2021 to March 2021. Data collection was carried out by observation and interviews. Data analysis of each indicator was carried out using a multi-criteria analysis approach with composite index assessment and visualization by flag model. Indicators were observed the trends of fish size, the proportion of juvenile fish were caught, the species composition, range collapse of fish resources, Endangered, Threatened, and Protected species. The status assessment of the Lemuru resource domain which landed at PPI Kedonganan is in the good category with a composite value of 66.7. Results of the trend indicators of fish size is relatively fixed, the proportion of fish juvenile caught about 90%, the composition of species caught was 100% of the target fish i.e, lemuru that caught by using gill net, range collapse of fish resources as much as 57% of fishermen expressed relatively fixed in looking for fishing grounds, and ETP species not found. Keywords: EAFM; Lemuru Fish; Fisheries Management; PPI Kedonganan.
PENILAIAN RISIKO KESEHATAN LINGKUNGAN KECAMATAN ABIANSEMAL, KABUPATEN BADUNG Ni Ketut Sri Lestari; I Made Ady Wirawan; Pande Putu Januraga
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 15 No 2 (2021)
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.2021.v15.i02.p04

Abstract

Environment, a variable that often gets special attention in assessing public health and environmental health, is an effort to prevent disease. Environmental Health Risk Assessment (EHRA) is a comprehensive study about sanitation facilities' conditions and risky behaviors on public health. Abiansemal District is one of the tourist destinations that has a very complex impact, especially on environmental health aspects. Behavior is a highly potential factor for health status, clean and healthy behavior is strongly influenced by the availability of sanitation facilities in order to control physical environmental factors that can harm health. This study determines the Health Risk Index and obtains an overview of the sanitation facilities condition and community behavior that has a risk for environmental health in Abiansemal District, Badung Regency. This study used stratified random sampling using a sample in the Abiansemal sub-district which has been determined as the target study area. Households to be visited in each village were selected randomly by stratified random sampling. After finding the first household visited, an interview was conducted according to the available questionnaire and after it was completed it was forwarded to neighbors until it found 40 houses per village. SPSS 20.0 is used for the data analysis. The description of sanitation facilities and community behavior that poses a risk to health in strata 1 has the main problem in domestic waste with the highest score of 36, while strata 2 has the main problem in solid waste with a score of 43 and strata 3 has the main problem in domestic wastewater with a score of 45. Analysis results of the sanitation risk index for the category of low risk/less risky area for strata 1 (1 village), the category of high-risk area for Strata 2 (11 villages), and the category of moderate risk area is in Strata 3 (6 villages). The high-risk area is found in Strata 2 (11 villages). Keywords: EHRA; Environmental health; Abiansemal; Badung.
ANALISIS DAYA DUKUNG DAN DAYA TAMPUNG LAHAN PERMUKIMAN KOTA DENPASAR I Kadek Fajar Arcana; Syamsul Alam Paturusi; I Wayan Suarna
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 15 No 2 (2021)
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.2021.v15.i02.p09

Abstract

Denpasar City is the capital city of Bali Province which has a rapid population growth rate every year. Along with the rapid population growth, this has an impact on meeting the needs of housing and other regional service facilities. The increasing number of population automatically causes an increase in the need for housing. Analysis of residential land supporting capacity and supply capability needed to preserve the environment. This research was conducted with a quantitative approach which describes and describes the results in the form of numbers or nominal values by explaining clearly either with the help of pictures, tables, or graphs. The quantitative data described are the population, land area and land capability area to support and accommodate housing as a place to live in Denpasar City. Based on the results of the analysis using the overlapping method and scoring using a GIS application. Denpasar City potential land to be developed as a residential area after being adjusted to the settlement plan in the Denpasar City Spatial Plan is available for 454,73 hectares of the total area of Denpasar City of 12,521 hectares or about 3.63% of land in Denpasar city. The capacity of Denpasar City houses is able to accommodate around 44.736 housing units and 178.943 residents. There are 2 sub-districts that are not able to accommodate the population in 2030, namely South Denpasar and North Denpasar. However, cumulatively, Denpasar City is still able to accommodate population growth in 2030 in obtaining residential land. Keywords: Supporting Capacity and Supply Capability; Residential Land; Denpasar City.

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