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All Journal Ecotrophic, Journal of Environmental Science
Made Sudiana Mahendra, Made
Program Studi Magister Ilmu Lingkungan Universitas Udayana
Environmental Science

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ANALISIS KANDUNGAN LOGAM BERAT Pb, Cu, Cd, Cr PADA TANAMAN PADI DAN JAGUNG YANG SISTEM PENGAIRANNYA BERASAL DARI SUNGAI BADUNG Widyasari, Ni Luh; Rai, I Nyoman; Sila Dharma, IGB; Sudiana Mahendra, Made
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 17 No 2 (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.i02.p01

Abstract

This research aims at identifying the content of heavy metals, namely Pb, Cu, Cd, and Cr in the rice and corn cultivated on the agricultural land of Subak Kerdung, Pemogan Village, South Denpasar District. Rice and corn plants are suspected of having indications of heavy metals due to pollution of the downstream Badung River, which is used as irrigation in Subak Kerdung agricultural land. The analysis of heavy metal contents is conducted on the rice and corn plant organs samples, including roots, stems, leaves, and seeds. The test results show that the organs of rice and corn plants detect the contents of heavy metals Pb, Cu, Cd, and Cr which exceed quality standards. According to the results of analysis tests on organs of the rice plant, the content of heavy metal Pb is detected 21.95 mg/kg; heavy metal Cu 170.42 mg/kg; heavy metals Cd 0.35 mg/kg; and heavy metal Cr 7.03 mg/kg. Meanwhile, the results of analysis test on organs of the corn plant detect the content of heavy metal Pb 16.96 mg/kg; heavy metal Cu 58.16 mg/kg; heavy metal Cd 2.5 mg/kg; and heavy metal Cr 3.16 mg/kg. Therefore, it can be concluded that the content of heavy metals Pb, Cu, Cd, and Cr is more detected in the roots of rice and corn plants, also partially translocated to their stems, leaves, and seeds. Keywords: heavy metals; rice plants; corn plants; Badung rivers
DAMPAK PENGEMBANGAN PARIWISATA TERHADAP KONDISI LINGKUNGAN PESISIR DAN STRATEGI PENGEMBANGANNYA DI PANTAI YEH GANGGA, KABUPATEN TABANAN Pradnyani, Gusti Ayu Manik; Sudiana Mahendra, Made; Diara, I Wayan
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 17 No 2 (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.i02.p11

Abstract

The Tabanan Regency Government has established Yeh Gangga Beach as one of the tourist attractions. Tourism development will certainly have an impact on the physical, social and economic environment of the local community as well as for the tourism area itself. So it is necessary to conduct research on how much tourism impact the physical environment and the social and economic communities on the coast of Yeh Gangga Beach. The method used in this research is mixed, using two types of data, namely quantitative data related to population data and questionnaire results, as well as qualitative data through observation and interview methods related to data on the physical environment and socio-economic conditions of tourism. The analysis method to formulate alternative strategies that can be applied in the development of Yeh Gangga Beach is done by SWOT analysis. Tourism development is in line with the construction of tourism support facilities. There are changes in the coastline in the form of accretion caused by the construction of trails and there are two river mouths large enough to cause sedimentation. The river water quality is still classified as good and has a parameter value that is not much different because it has almost the same water activity. Tourism development on Yeh Gangga Beach has positively impacted the local community’s economy and income, with changes in livelihoods and income. The calculation results of the strength factor obtained a score value of 1.96 and a weakness value score of 0.91 with a score difference of +1.04. then the opportunity factor obtained a score value of 2.01 and a threat value score of 0.66 with a difference of +1.35 so that Positive-Positive (+, +) results were obtained, namely in Quadrant I. This position indicates that internal strengths and environmental conditions support tourism development so strategic recommendations are given by way of internal strengths and environmental conditions that support tourism development. This position indicates that the internal is strong and the environmental conditions support tourism development, SO the strategy recommendations are given by making the most of the strengths and opportunities possessed. Keywords: Environment, Tourism, Impact, Development Strategy
DAMPAK EKOWISATA KAWAH PUTIH DI KECAMATAN RANCABALI BANDUNG TERHADAP SOSIO-EKONOMI MASYARAKAT DAN LINGKUNGAN SERTA STRATEGI PENGEMBANGANNYA Hendri, Jajang; Sudiana Mahendra, Made; Rai, I Nyoman
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 18 No 1 (2024)
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.2024.v18.i01.p10

Abstract

The high perception of Kawah Putih Ecotourism management in involving the community in economic activities still has no impact on increasing people's income and standard of living, so it is necessary to analyze the impact of Kawah Putih Ecotourism development on the socio-economy and environment of the surrounding community and its development strategy. First, it is measured with ecotourism parameters for implementation to determine the economic impact on society which is analyzed with income inequality and Klassen typology. Social impact analyzes its positive and negative impacts. The physical environment is analyzed through environmental awareness parameters and development strategies using IFE-EFE, SWOT and QSPM techniques. The results of the research evaluating the application of the principles and criteria of Crater Ecotourism obtained quite high performance results. While the economic analysis of the average per capita income of the community is relatively small for economic growth, the classification of the Klassen typology of the Kawah Putih community is still considered a disadvantaged area. The social impact of the community is categorized as moderate with a slightly larger percentage of negative impact. The level of environmental awareness is still felt to be quite high. Kawah Putih ecotourism priority strategy is to implement quality and licensed management and services by prioritizing honesty, hospitality, comfort and cleanliness to create tourist loyalty so as to improve the economy, social community is more inclined to positive impacts with high environmental awareness. Keywords: Ecotourism, Socio-Economic, Environmental, Development Strategy
ANALISIS KELAYAKAN EKONOMI PENGOPERASIAN SISTEM PENYEDIAAN AIR MINUM (SPAM) DI PULAU NUSA PENIDA - KABUPATEN KLUNGKUNG Ariantana, Ketut; Sudiana Mahendra, Made; Nuarsa, I Wayan; Adnyana, I Wayan Sandi; Kastini Adiputri, Ni Made
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 17 No 2 (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.i02.p03

Abstract

Water is the most basic need for living things, it follows population growth and development activities as in Nusa Penida Island. The water supply on this island comes from SPAM Penida and SPAM Guyangan. The Central and Provincial Governments of Bali provide operational subsidies of more than 7 billion on average. Perumda Panca Mahottama’s services also can’t cover all villages on this island. It means SPAM management is not yet economical, and the service is not optimal. The purpose of this economic feasibility analysis is to determine the economic feasibility of SPAM in terms of Full Cost Recovery and appropriate tariffs so that operational costs are proportional to income. To determine the economic feasibility conditions, a study was conducted to evaluate the value of current tariff (2021). The result is Opex value is bigger than the income value. This results in a NCF value of (-Rp.2,610,621,409.00). The operational cost is IDR.7,164,857,259.00/year with total production 1,530,362.88m3/year. The FCR value obtained was IDR.4,681.80/m3. The average production cost is IDR.2,975.92/m3, which means there will still be a loss in 2021 of IDR1,705.99/m3. Analysis was conducted based on the trial error method with calculation period of 15 years, with 3 different tariff systems, alternative 1, tariff with the same value IDR.4,100/m3 from 2023 to 2036, alternative 2 tariff is IDR.3,500 in 2023 to 2027 increase by IDR.1,000/m3 in 2028 to IDR.4,500/m3 until 2036. Alternative 3 tariff is IDR.3,000/m3 in 2023 increase by IDR.500/m3 in 2024 to 2026 and settled at a rate IDR.4,500/m3 until 2036. Keywords: SPAM; feasibility; economy; tariff
Co-Authors Ariantana, Ketut Hendri, Jajang I NYOMAN RAI I Wayan Diara I Wayan Nuarsa I Wayan Sandi Adnyana Kastini Adiputri, Ni Made NI LUH WIDYASARI Pradnyani, Gusti Ayu Manik Sila Dharma, IGB