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All Journal Ecotrophic, Journal of Environmental Science Journal of Degraded and Mining Lands Management BULETIN FISIKA Jurnal Rekayasa Hijau GANEC SWARA Jurnal Aplikasi dan Inovasi Iptek (JASINTEK) Envirotek : Jurnal Ilmiah Teknik Lingkungan Jurnal Ecocentrism Jurnal Ilmiah Kurva Teknik Jurnal Teknologi Lingkungan
NI LUH WIDYASARI
Universitas Mahasaraswati Denpasar
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Physics Social Sciences Transportation Other

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PERENCANAAN STRATEGI PENGELOLAAN HUTAN PALASARI DENGAN METODE AHP Ni Made, Wedayani; Ni Luh, Widyasari
Rekayasa Hijau : Jurnal Teknologi Ramah Lingkungan Vol 4, No 1 (2020)
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (307.392 KB) | DOI: 10.26760/jrh.v4i1.43-47

Abstract

ABSTRAK Pengelolaan kawasan Hutan Palasari sebagai sabuk hijau penting dilakukan sebagai upaya pelestarian lingkungan. Hutan Palasari yang terletak di desa Ekasari, Kecamatan Melaya, Kabupaten Jembrana berperan aktif dalam mencegah erosi dan menjaga sumber air bagi masyarakat sekitar. Kawasan Hutan Palasari yang dekat dengan daerah waduk menjadikan hutan ini sebagai kawasan sabuk hijau yang perlu dilestarikan. Tujuan dari penelitian ini adalah mengkaji langkah-langkah yang tepat dalam pengelolaan dan pelestarian Hutan Palasari dengan menggunakan metode AHP, sehingga diperoleh rangkaian prioritas strategi yang dapat diusahakan masyarakat sekitar demi keberlanjutan Hutan Palasari. Strategi pelestarian Hutan Palasari yang menjadi prioritas yaitu menerapkan sistem agroforestri dengan mengutamakan tanaman berkayu yang bernilai ekonomis serta mampu menahan air dan erosi seperti tanaman endemik hutan yaitu pohon bayur dan pulai demi menjaga kawasan Hutan Palasari agar tetap lestari dan berkelanjutan.Kata kunci: hutan, sabuk hijau, waduk, AHPABSTRACTManagement of the Palasari Forest area as a green belt is important as an effort to preserve the environment. Palasari Forest, located in Ekasari Village, Melaya District, Jembrana Regency, has an active role in preventing erosion and maintaining water sources for the surrounding community. Palasari Forest area which is close to the reservoir area makes this forest a green belt area that needs to be preserved. The purpose of this study is to examine the appropriate steps in the management and preservation of Palasari Forest by using the AHP method, in order to obtain a series of strategic priorities that can be pursued by local communities for the sustainability of Palasari Forest. The Palasari Forest preservation strategy which is a priority is to implement an agroforestry system by prioritizing woody plants that are economically valuable and able to withstand water and erosion such as forest endemic plants, namely bayur and pulai trees in order to maintain the Palasari Forest area to remain sustainable and sustainable.Keywords: forests, green belts, reservoirs, AHP
Upaya Pengolahan Limbah Kotoran Babi Menggunakan Komposter Rumah Tangga Widya Sari; I Wayan Budiarsa Suyasa; I.G.B Sila Dharma
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 12 No 2 (2018)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (878.815 KB) | DOI: 10.24843/EJES.2018.v12.i02.p01

Abstract

ABSTRACT The production of pig manure waste potentially pollutes the soil, water and air. One of the most effective processing a waste treatments is through composting. The composting process takes a long time if not assisted by the activator as decomposers of organic materials in order to accelerate the composting process. Activators such as local microorganism (MOL) contain macro nutrients, micro and active microorganism that potentially decomposed organic materials, growth stimulants and pest/disease control agents such as to help speed up the composting process. This study aims to determine the C/N ratio of optimal raw materials for composting of pig manure and vegetable waste, determining the effect of adding local microorganism (MOL) to the length of time of composting and determining the effectiveness of business from composting of pig manure and vegetable waste based on the calculation of B/C ratio. This research uses quantitative approach with experiment method. The first stage is the preparation of the raw material which is divided into three groups : composition 1 with 75% (pig manure) and 25% (vegetable waste), composition 2 with 50% (pig manure) and 50% (vegetable waste) and then composition 3 with 25% (pig manure) and 75% (vegetable waste). Furthermore, the best raw material composition was treated with variations of MOL addition of A (100 ml), B (300 ml), C (500 ml) and D (without MOL). The results showed that the composition of the best raw material mixture was a mixture composition of 25% (pig manure) and 75% (vegetable waste) with a C/N ratio of 38.95. The effect of MOL addition indicates that the greater MOL volume the faster to composting process. The quality compost with addition of MOL has C/N ratio levels is (16,30), N-total (1,65%), P tersedia (8043,02 ppm), K tersedia (8857,40 ppm), Fe (1,87%), Mn (0,09%) Zn (480 ppm) in which that value meets the SNI 19-7030-2004. Based on analysis of B/C ratio obtained result of 1.04 where the value is approaching criteria B/C ratio more than 1.00 which means compost business feasible to be developed. Keywords : Pig manure, MOL, time of composting, composter, B/C ratio
MENENTUKAN RESPON ADAPTASI TERHADAP KUANTITAS DAN KOMPONEN LEUKOSIT MENCIT (MUS MUSCULUS L) PASCA RADIASI GAMMA Co-60 Ni Luh Widyasari; I Gusti Ngurah Sutapa; I Wayan Balik Sudarsana
BULETIN FISIKA Vol 15 No 1 (2014): BULETIN FISIKA
Publisher : Departement of Physics Faculty of Mathematics and Natural Sciences, and Institute of Research and Community Services Udayana University, Kampus Bukit Jimbaran Badung Bali

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Abstract

Research has been conducted to study adaptive response of the quantity and components leucocyteafter Co-60 gamma radiation. This research used 20 male mice with an average weight of 20-30 gand aged 35-95 days. The male mice given adaptive dose 0,1 Gy followed by a continuous dose of 1Gy, 2 Gy and 3 Gy. Co-60 gamma radiation shows that the quantity of leucocytes decreased until the30th day is called lowest point. With 0,1 Gy adaptive dose shown to reduce leucocyte damage by13,95% compared with no adaptation dose. After passing through the lowest point, the quantity ofleucocytes increased until the 60th day. With an increase in the adaptive dose is faster to reach anincrease of 25,16%. On leucocyte component, which has increased similar with quantity leucocytes isthe neutrophil segment and lymphocytes.
Kajian Tanaman Hiperakumulator Pada Teknik Remediasi Lahan Tercemar Logam Berat Ni Luh Widyasari
Jurnal Ecocentrism Vol. 1 No. 1 (2021): Jurnal Ecocentrism
Publisher : Program Studi Teknik Lingkungan Unmas Denpasar

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Abstract

Increased activity in the industrial sector can increase the production of solid, liquid and gas waste. Industrial waste that is indicated by heavy metals can reduce environmental quality. Heavy metal pollution can occur in soil and waters which will disturb the ecosystem in it. Heavy metals not only have a negative impact on the environment but also on the health of the human body. There have been many chemical and physical techniques for dealing with heavy metals, but they are still not effective because these techniques are considered to increase the level of pollution and require a large amount of money. Therefore, the remediation technique using hyperaccumulator plants is one of the solutions in efforts to resolve heavy metals polluted in a soil and waters. Vetiveria zizanioides, Sansevieria trifasciata, Eichhornia crassipes are hyperaccumulator plants of capable absorbing and accumulating heavy metals by phytoextraction, phytodegradation and rhizofiltration mechanism.
Studi Teknik Bioremediasi Tanah Tercemar Logam Berat Dengan Menggunakan Eco-Enzyme Ni Luh Widyasari; I Gusti Ngurah Made Wiratama
Jurnal Ecocentrism Vol. 1 No. 2 (2021): Jurnal Ecocentrism
Publisher : Program Studi Teknik Lingkungan Unmas Denpasar

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Abstract

The technique of remediation of heavy metal contaminated soil can be done biologically with the help of microorganisms. Bioremediation is a soil remediation technique that uses enzymes from microorganisms in an effort to rehabilitate soil. The bioremediation mechanism occurs when enzymes derived from the activity of microorganisms interact with heavy metals in the soil and then convert them into uncomplicated chemical structures so that the level of heavy metal toxicity decreases. Among biological agents, enzymes have great potential to effectively convert and detoxify pollutant substances because enzymes have been recognized to be capable of converting pollutants at detectable levels and are potentially suitable for restoring polluted environments. Eco-enzyme is a fermented liquid produced from the composition of fruit/vegetable organic waste, water and brown sugar, which is an alternative product in helping the process of soil biodegradation. Eco-enzymes contain hydrolytic enzymes that can increase soil fertility and can be used as an effort to degrade heavy metals in polluted soil.
Uji Penentuan Status Mutu Air Sungai Ayung Menggunakan Metode Storet Ni Luh Widyasari; I Kadek Ardi Putra
Jurnal Ecocentrism Vol. 2 No. 2 (2022): Jurnal Ecocentrism
Publisher : Program Studi Teknik Lingkungan Unmas Denpasar

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Abstract

Important role of rivers in daily life is used as a means of providing clean water, irrigation systems for farmers, transportation facilities and sports such as rafting. In Bali, rivers have an important role as a means of tourism activity. Utilization of water resources such as rivers in various activities will certainly affect the quantity and quality of rivers. The water quality of the Ayung River has decreased due to dense number of settlements around the river and heterogeneous community activity patterns with increased domestic waste production. Based on results from analysis parameter and determining status of river, it was found that Ayung River in the upstream, middle and downstream part was included in the lightly polluted category. This is due to the TSS and Faecal coliform parameters whose values ​​exceed the quality standard. Faecal coliform content upstream of the Ayung River is 170 MPN/100mL. The content of TSS and Faecal coliform in the middle of the Ayung River was 131 mg/mL and 84 MPN/100mL. Meanwhile, the content of TSS and Faecal coliform downstream of the Ayung River was 114 mg/mL and 790 MPN/100mL.
Monitoring Uji Kualitas Udara Dan Tingkat Kebisingan Di SMAN 1 Semarapura Kabupaten Klungkung I Made Satya Graha; Ni Luh Widyasari
Jurnal Ecocentrism Vol. 3 No. 2 (2023): Jurnal Ecocentrism
Publisher : Program Studi Teknik Lingkungan Unmas Denpasar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36733/jeco.v3i2.7413

Abstract

Air pollution occurs due to the amount of pollutants that exceed the maximum limit affecting ambient air quality. Pollutant gases are produced predominantly from uncontrolled community activities, one of which is using transportation facilities. Air quality test research has been carried out at SMAN 1 Semarapura, Klungkung Regency, in the context of observing a river safety development project. Based on the analysis, the results obtained from air quality measurements for the parameter sulfur dioxide (SO2) 37.5 μg/m3; nitrogen dioxide (NO2) 6.5 μg/m3; oxidant (O3) 6.8 μg/m3; carbon monoxide (CO) 1150 μg/m3; lead (Pb) 0.002 μg/m3; total dust (TSP) 72.3 μg/m3; hydrogen sulfide (H2S) 0.017 ppm and a noise level of 43.8 dBA. These parameter values are still below the ambient air quality standards stipulated in Peraturan Gubernur Bali No. 16 Tahun 2016. Meanwhile, the ammonia (NH3) parameter is worth 9.5 mg/m3, which exceeds the ambient air quality standard. The high concentration of ammonia gas in the air can disrupt ecosystems and the health of the human body. Ammonia gas accumulating in the body can interfere with the respiratory system and irritate the respiratory tract. Therefore it is necessary to periodically monitor air quality to overcome the impact of air pollution.
Analisis Kualitas Air Tukad Pakerisan Menggunakan Metode Indeks Pencemaran I Made Nada; Ni Luh Widyasari; Ni Putu Meilda Florenzia Ekayanti
Jurnal Ecocentrism Vol. 3 No. 2 (2023): Jurnal Ecocentrism
Publisher : Program Studi Teknik Lingkungan Unmas Denpasar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36733/jeco.v3i2.7488

Abstract

Tukad Pakerisan is one of the largest rivers in Bali that crosses Gianyar Regency. The increase in population has caused the function of Tukad Pakerisan to decline and become polluted. This study aims to determine the quality and status of quality in the upstream, middle and downstream of Tukad Pakerisan. The results showed that the quality of Tukad Pakerisan in the upstream section had parameters that exceeded the quality standards, namely Biological Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Dissolved Oxygen (DO) and Phosphate. In the middle part, the parameters that exceed the quality standard are Dissolved Oxygen (DO) and Fecal Coliform. On the downstream side, parameters that exceed quality standards are Dissolved Oxygen (DO) and Phosphate. While the results of the calculation of the Pollution Index (IP) at the upstream point are 1.76; midpoint 1.80; and downstream point 1.13 with slightly polluted status.
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
Ruang Terbuka Hijau dan Jejak Karbon Primer pada Jasa Akomodasi Vila di Kabupaten Badung, Bali Kenedy, Fransiskus Vebrian; Maharani, Made Vina; Wiratama, I Gusti Ngurah Made; Widyasari, Ni Luh; Darmayasa, I Gede Oka
Envirotek : Jurnal Ilmiah Teknik Lingkungan Vol. 16 No. 1 (2024): Envirotek: Jurnal Ilmiah Teknik Lingkungan
Publisher : Universitas Pembangunan Nasional Veteran Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/envirotek.v16i1.327

Abstract

Kabupaten Badung sebagai pusat pariwisata Bali memiliki potensi sebagai penyumbang emisi karbon yang bersumber dari jasa akomodasi pariwisata. Vila merupakan jasa akomodasi dengan sumber penghasil emisi karbon primer dari penggunaan bahan bakar LPG dalam aktivitas memasak. Tujuan penelitian ini adalah menentukan persentase nilai jejak karbon primer pada jasa akomodasi villa di Kabupaten Badung sebagai pertimbangan dalam pemenuhan ruang terbuka hijau. Data primer dari penelitian diperoleh dengan melakukan survey sebanyak 60 vila.Variabel penelitian terdiri atas jumlah penggunaan bahan bakar LPG per bulan pada setiap vila. Jejak karbon primer diperoleh dari nilai faktor emisi LPG dikalikan dengan jumlah penggunaan bahan bakar selama satu bulan. Persentase jejak karbon primer pada jasa akomodasi vila di Kecamatan Kuta Selatan sebesar 36,76% dan memiliki nilai paling tinggi dibandingkan Kecamatan Kuta 34,31% dan Kecamatan Kuta Utara 28,92%. Nilai persentase carbon footprint primer berbanding lurus terhadap rata-rata penggunaan bahan bakar LPG per bulan. Emisi CO2 primer dipengaruhi oleh jumlah LPG dalam aktivitas memasak di vila. Salah satu solusi alternatif untuk menanggulangi jejak karbon primer pada vila adalah menciptakan ruang terbuka hijau melalui pembuatan taman vertikal. Konsep taman vertikal pada vila sebagai ruang terbuka hijau berfungsi menyerap polusi seperti emisi CO2 sehingga kualitas udara sekitarnya menjadi lebih baik.
Co-Authors Agus Karmadi, Ketut ANAK AGUNG GDE SUTRISNA WIJAYA PUTRA Ayu Anjani Putri, Ni Komang Dharma, IGB Sila Gusti Ngurah Sutapa I Gede Oka Darmayasa I Gusti Ayu Diah Yuniti I Gusti Bagus Sila Dharma i kadek ardi putra I Made Nada I Made Satya Graha I NYOMAN RAI I W BUDIARSA SUYASA I Wayan Balik Sudarsana Indah Dianti Putri, Putu Kenedy, Fransiskus Vebrian Luh Putu Kirana Pratiwi Luh Putu Yuni Widyastuti M. Sudiana Mahendra Made Sudiana Mahendra, Made Maharani, Made Vina Mahendra Dewi, Ni Luh Putu NI MADE WEDAYANI Ni Made, Wedayani NI NYOMAN TRI GITAYANI Ni Putu Meilda Florenzia Ekayanti Sastra Wibawa, I Made Sila Dharma, IGB Vina Maharani, Made Wiratama, I Gusti Ngurah Made