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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 11 Documents
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Search results for , issue "Vol 17 No 1 (2023)" : 11 Documents clear
KARAKTER VEGETASI, KEANEKARAGAMAN MAKROZOOBENTOS DAN KARBON PADA SEDIMEN DI KAWASAN MANGROVE NUSA LEMBONGAN DAN ESTUARI PERANCAK I Made Abdi Janaguna; I Wayan Arthana; Ni Luh Watiniasih
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 17 No 1 (2023)
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.2023.v17.i01.p03

Abstract

Natural mangroves can be found in Nusa Lembongan, which is bordered by coral reefs, while in the Perancak Estuary, some of the lands are former ponds. The aim of the study was to determine the density, canopy cover, and organic carbon content in mangrove sediments. Data were collected from 3 stations, using transects measuring 10 x 10 m to determine density, height, trunk circumference, and canopy cover, as well as macrozoobenthos sampling. The mangrove density in Lembongan is very high, the tree height reaches 8 – 10 meters, and the mangrove canopy cover is in a good category. The macrozoobenthos diversity index is in the medium category and the carbon content in the sediments is high. Mangroves in Perancak Estuary are densely dense, with an average tree height of 8 meters, and canopy cover in the good category. The index of macrozoobenthos diversity was moderate and the organic carbon in the sediments was lower than in the mangroves at Nusa Lembongan. The character of the mangrove vegetation is different in the two areas. The Nusa Lembongan mangrove growing area is directly opposite the sea, but in the Perancak Estuary, it tends to be closed and flows by a large river around it. The mangrove growth zone is still natural in the Nusa Lembongan area, in contrast to the Perancak Estuary mangrove area which has been rehabilitated at several points. Keywords: Mangrove vegetation; macrozoobenthos; carbon on sediment
STATUS PENGELOLAAN PERIKANAN SIDAT (Anguilla Spp.) BERDASARKAN PADA PENDEKATAN EKOSISTEM DI DAERAH ALIRAN SUNGAI (DAS) CIMANDIRI, JAWA BARAT Faridz Rizal Fachri; I Wayan Arthana; I Nyoman Merit; Achmad Mustofa
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 17 No 1 (2023)
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.2023.v17.i01.p08

Abstract

Anguilla spp. is a catadromous fish species that have high export value in supporting the livelihood and food source for the local community in the Cimandiri Watershed, West Java, which is involved in the Indonesian Fisheries Management Area - Inland Waters (WPPNRI-PD) 432. However, pressure on habitat and watershed ecosystems is leading to degradation due to anthropogenic activities is inevitable. This study aimed to determine the composite index of the seven domains and the eel-fishery management status performance based on the EAFM approach in the Cimandiri watershed. The research was carried out from April 2021–February 2022, using a quantitative method focused on testing theory by measuring research variables with numbers and analyzing data based on the findings in each domain. The ex-situ and in-situ data were collected through direct measurements and in-depth interviews with respondents. Subsequently, the composite scores of domains were calculated using flag modeling (multi-criteria analysis). The results highly likely indicated that habitat and social are the lowest-performance domains and require more attention for improvements. In general, the status of the eel fishery management using the EAFM approach in the Cimandiri watershed is fairly good. However, integration of multi-sectoral collaboration is highly needed through the development of effective co-management by maximizing the roles of the community to be further involved in planning and implementing the management actions of the Cimandiri watershed in the form of participative, community-based, toward sustainable use of the resources. Kata kunci: Eel, Cimandiri Watershed, EAFM, Co-management
CARBON STOCKS ESTIMATION ON URBAN VEGETATION USING UAV-SfM PHOTOGRAMMETRY METHOD Agus Sukma Yogiswara; Takahiro Osawa; I Wayan Nuarsa; Abd. Rahman As-syakur
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 17 No 1 (2023)
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.2023.v17.i01.p04

Abstract

Global warming and biodiversity loss are critical issues, and forest retention and reforestation programs are crucial in mitigating climate change. However, discussions around these programs often exclude the role of urban vegetation in carbon sequestration. Preserving urban vegetation, such as trees, can also significantly reduce carbon emissions. Urban vegetation can be found in two main locations: Urban Green Open Spaces (UGS) and Road Landscapes (RL). In Denpasar Bali, Glodokan Tiang or Polyalthia longifolia trees are planted at those locations. Data management and carbon stock calculation mechanisms are required to demonstrate the contribution of urban vegetation in terms of carbon sequestration. The technology of Unmanned Aerial Vehicle (UAV) can be used as an alternative to efficiently calculate the estimated carbon stock. The calculation uses the Diameter Breast High (DBH) value approach using the canopy area and Canopy Height Model (CHM) obtained from UAV data processing using the Sfm method. UAV estimates show that the highest Above Ground Biomass (AGB) value at Bajra Sandhi Renon Field is 201.59 kg with a stored carbon content of 94.75 kg, while on I Gusti Ngurah Rai Bypass has the highest AGB value of 215.04 kg with a stored carbon content of 101.07 kg. These results have been validated by field observations, where the results of the regression analysis at the location of Bajra Sandhi Renon and I Gusti Ngurah Rai, show that between field observation data and estimation data with UAV there is no significant difference. While the results of the t-test: Paired Two Sample for Means at the Bajra Sandhi Renon Field and the Bypass I Gusti Ngurah Rai have a value above the significance level which proves that there is no significant difference between the carbon stock value from field observations and the carbon stock from the UAV approach. Keywords: Carbon Stock; Above Ground Biomass; Urban Vegetation; UAV-Sfm
THE ACCURACY OF GILILAWA DARAT WILDFIRE SPREAD ESTIMATION USING BURN SEVERITY AND WRF-SFIRE MODEL Imam Barnadi; Takahiro Osawa; I Wayan Nuarsa
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 17 No 1 (2023)
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.2023.v17.i01.p09

Abstract

In this research, the origin of the wildfire area is assessed by using the potential of burn severity and the WRF-SFIRE model. This research focuses on the mountainous savanna region, by taking the case of the Gililawa Darat wildfire event. The most accurate index among Sentinel-2B optical burn severity indices, i.e. dNBR, MIRBI, dMIRBI, CSI, dCSI, NDVI, dNDVI, EVI, and dEVI and among Landsat-8 OLI/TIRS thermal and mixed burn severity indices, i.e. LST, dLST, LST/EVI, and d(LST/EVI) was used to map the areas with low burn severity, an indication generally found at origin area. A series of fire spread simulation from these areas was conducted using WRF-SFIRE to assess the accuracy of each simulation in reproducing the burned area. The burn severity accuracy assessment showed that dNBR and dCSI indices had the highest value of Overall Accuracy and Kappa Hat Coefficient, i.e. 91.67% and 0.889 (almost perfect agreement). However, dNBR was the most suitable index for mapping burn severity in the region due to its goodness-of-fit measure for linear regression model with the R-squared value of 0.7856. The assessment of thermal and mixed burn severity indices based on Landsat-8 OLI/TIRS resulted in LST, LST/EVI, and d(LST/EVI) gained the same overall accuracy of 58.33% and Kappa Hat Coefficient of 0.444 indicating moderate agreement, whereas dLST performed poorer than these indices. However, it is not recommended to use these burn severity indices in the region due to the nonlinearity of severity level with the index value. According to WRF-SFIRE simulations result, it was found that fire ignition started from low burn severity area coordinates which have a distance of 0 to 334 metres from the origin area resulting in fire area witan h overall accuracy value range from 77.04% to 81.90% and Kappa Hat Coefficient value range from 0.536 to 0.626. The simulation from the origin area resulted in an overall accuracy of 81.57%, a Kappa hat coefficient of 0.613, underestimated burned area ratio of 0.08, overestimated burned area ratio of 0.23, and a backing fire perimeter difference ratio of 0.4 to the reference. Keywords: wildfire; Gililawa Darat; wildfire spread; burn severity; WRF-SFIRE, fire origin area
STUDI EKOLOGI PENGOLAHAN GARAM TRADISIONAL KABUREA BERBASIS KEARIFAN LOKAL DI DESA TENDAKINDE, FLORES Hermina Sena; Made Sudiana Mahendra; I Wayan Suarna
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 17 No 1 (2023)
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.2023.v17.i01.p05

Abstract

Tendakinde Village is a village located in Nagekeo Regency, and has coastal resources, namely traditional salt production. Knowledge in processing patterns is quite extensive, as to be able to make salt production a regional icon, a strategy is needed that can process natural resources properly. The purpose of this study is to examine traditional Kaburea salt processing techniques based on local wisdom, to determine the impact of climate change on salt production, to understand and develop strategies for the existence of traditional Kaburea salt processing. Data collected through literature, observation, focus group discussion with 15 participants, interviews with 8 informants, and questionnaires. The sample used in the questionnaire is 30 samples. The data obtained is then processed using the IFE matrix, EFE matrix, and SWOT analysis. Traditional salt processing is shown in the process of preparation to production of salt through rules which then become a habit (local wisdom). The basic materials for the facilities used are wood and bamboo, then the raw materials for salt production are sea water which is collected in wells. However, climate change is a bad influence on the quality of salt, therefore it is necessary to work together from the government and Kaburea salt farmers in permanently repairing the embankment. The results of the analysis of the IFE matrix and the EFE matrix show that Kaburea's traditional salt processing is in a grow and build position, meaning that the development of the salt business must be maintained amidst its growth rate. Based on the results of the SWOT analysis, 12 alternative strategies were obtained that the Kaburea salt farmers were expected to be able to implement strategies according to their abilities and circumstances. Keywords: Ecology; Local Wisdom; Traditional Salt; Strategy
ANALISIS STATUS MUTU AIR SUNGAI KARANG MUMUS SEGMEN JEMBATAN S. PARMAN DAN JEMBATAN PERNIAGAAN KOTA SAMARINDA Rini Ariesa Puspa; Vita Pramaningsih; Andi Daramusseng
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 17 No 1 (2023)
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.2023.v17.i01.p10

Abstract

Karang Mumus is a river that is widely used by the community for various activities to meet the needs of life such as bathing, washing and as a source of drinking water. This causes water quality to decline and results in health impacts on river users. The purpose of this study was to analyze the water quality status of the Karang Mumus River Segment of the S. Parman Bridge and the Perniagaan Bridge of Samarinda City. This research is an observational descriptive study, which is to find out what are the potential sources of pollution in river water, find out how the quality of river water is using the Pollution Index method and find out the health impacts caused by river water. The research shows that the sources of pollution in the S. Parman Bridge and Perniagaan Bridge segments come from household and industrial activities. The status of river water quality in the S. Parman Bridge and Perniagaan Bridge segments has light and heavy polluted categories with 4 parameters that do not meet the quality standards, namely, TSS, COD, DO, and Fecal Coli. The health impacts caused by using river water in the S. Parman Bridge segment and Perniagaan are diarrhea, dysentery and skin irritation. The largest percentage of diseases experienced by the people of the river area of the S. Parman Bridge segment is diarrhea by 30%, while in the Perniagaan Bridge segment, skin irritation is 40%. Keywords: Karang Mumus River; Pollution Index; Water Quality
A SPATIAL STUDY OF LAND AND FOREST FIRE-PRONE AREAS IN SITUBONDO REGENCY, EAST JAVA PROVINCE Haeropan Daniko Putra; Masita Dwi Mandini Manessa; Rokhmatulloh Rokhmatulloh; Anisya Feby Efriana; Muhammad Haidar
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 17 No 1 (2023)
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.2023.v17.i01.p01

Abstract

The increasing area of land burned in 2021 makes the government urgent to map areas prone to forest fires in Situbondo Regency. This study analyzes areas prone to forest and land fires using the SMCA method. The research analysis used variables of land cover type, the greenness of vegetation, vegetation humidity, land surface temperature, and human factors. The human elements in question are accessibility (distance from the road network) and distance from human activities (distance from settlements, fields, and plantations). The conclusion analysis of forest fire-prone areas is divided into three classes that are high, medium, and low. From the vulnerability model that has emerged, it was found that most of Situbondo Regency have a high grade of forest fire vulnerability with an area of 652.66 km² (39.08%). The areas with the level of vulnerability of the middle, low, and non-vulnerable classes, respectively, are 532.12 km² (31.87%), 306.46 km² (18.35%), and 178.65 km² (10, 70%). The results of statistical tests using the ordinal logistic regression method show that natural factors for forest and land fires had a higher level of influence (? = 4.824) on forest and land fire vulnerability compared to human factors (? = 1.051). Keywords: Forest and Land Fires; GMA method; Natural Factors; Human Factor
PREDIKSI EROSI DAN PERENCANAAN KONSERVASI TANAH DAN AIR DI DAERAH ALIRAN SUNGAI PAKERISAN PROVINSI BALI Ni Wayan Suprianingsih; I Wayan Sandi Adnyana; I Wayan Diara
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 17 No 1 (2023)
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.2023.v17.i01.p06

Abstract

Pakerisan watershed is one of the watershed that has not followed the rules of soil and water conservation. This can destroy soil aggregates and cause high erosion. This study aims to predict the level of erosion and to plan soil and water conservation. Erosion prediction uses the USLE (Universal Soil Loss Equation). The prediction erosion showed that erosion is classified from slight to severe. The erosion rate is very light covering an area of 6,426.26 ha (71.28%) with natural forests, dryland agriculture, and paddy fields. The moderate erosion rate is 583.83 ha (6.48 %) on dryland and paddy fields farming. The severe erosion rate is 1,087.99 ha (12.07%) on land use in the form of dryland agriculture. The very severe erosion covering an area of 916.85 (10.17%) with the use of dryland agriculture. Conservation planning can be carried out by increasing vegetation density, adding mulch and conservation measures of making terraces with good construction. Keywords: Soil; Prediction Erosion; Conservation; Watershed
MODEL ANALISIS DYNAMIC LIMBAH MEDIS RUMAH SAKIT DI DENPASAR BALI Maulidiyah Nurma Alfiyanti; Ni Made Utami Dwipayanti; I Made Sara Wijana
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 17 No 1 (2023)
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.2023.v17.i01.p11

Abstract

Denpasar has 18 hospitals, 11 health centers, and 25 sub-health centers located at South Denpasar, East Denpasar, West Denpasar, and North Denpasar (Dinkes, 2020). The average medical waste generated every day is 1800 kg/day or 1.8 tons day (DLHK, 2018). The methods to develop solid medical waste management include minimizing medical waste from its source, sorting, storing, reusing and recycling, collecting, transporting, storing, processing, and destroying it (Health Ministry of the Republic of Indonesia, 2018). Dynamic analysis is the right approach to examine a complex problem with limited data. This research uses quantitative and qualitative based on primary and secondary data. Research where located in 15 public hospitals in Denpasar City. The time of research starts in November – December 2021 with a prediction period of 10 years until 2030. According to the result he weight of solid medical waste increased from year to year. In 2022 the weight of medical waste was redicted to reach 727.75 kg or 730 tons. The weight of solid medical waste becomes 436.136 kg or 436 tons with a 40% reduction policy implemented in its entirety. The cost aspect of simulation without hospital policy will cost more than IDR 9 billion per year. The proposed solution to maximize the combination of solid medical waste reduction and management policies in Bali. These efforts can minimize costs and reduce the production of solid medical waste from source to utilization. Keywords: Dynamic Analysis Model, Technical Aspect, Hospital, Medical Waste
PEMANFAATAN CITRA SATELIT DAN SISTEM INFORMASI GEOGRAFIS UNTUK PEMETAAN KESESUAIAN AGROKLIMAT TANAMAN JAGUNG DI PROVINSI JAWA TENGAH Apritarum Fadianika; I Wayan Nuarsa; I Ketut Sardiana
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 17 No 1 (2023)
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.2023.v17.i01.p02

Abstract

Corn is a strategic agricultural commodity in Central Java Province because this plant is the second main food crop commodity after rice. Evaluation of agro-climate suitability aims to assess suitable areas based on climatic conditions and efforts to overcome climate-limiting factors in order to achieve optimal productivity in corn cultivation. Satellite imagery can be used to overcome the lack of density of climate stations, which are the source of data for climate suitability evaluation. This study aims to validate GSMaP satellite rainfall data and Terra MODIS satellite air temperature data against BMKG observation data, create a distribution map of climatic conditions, and create a distribution map of agro-climate suitability classes based on GIS for maize in Central Java Province. This study uses rainfall and temperature data from 30 BMKG observation points and satellite imagery data for 20 years (2001–2020). The correlation values, RMSE, and MBE were calculated to validate satellite rainfall and air temperature data with observed rainfall and air temperature. Satellite data correction calculations are used to fill in the data at points without observation. The validation results show that the satellite data is valid and that there is a pattern of conformity with the observational data. Central Java province has an annual rainfall of 1,500 mm/year to 6,000 mm/year, an average annual temperature of 24.9oC to 28.1oC, and three to nine months of wet months. In some areas, the agro-climate suitability class for maize plants was in the moderately suitable category (S2wa, tc) with an area of 156,302 ha, marginally suitable (S3wa) with an area of 1,277,813 ha, and not suitable (Nwa) with an area of 2,008,673 ha. Keywords: Corn; GSMaP; Terra MODIS; Climate Suitability; GIS

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