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Contact Name
Abd. Rahman As-syakur
Contact Email
assyakur@unud.ac.id
Phone
+62361 - 261182
Journal Mail Official
blje@unud.ac.id
Editorial Address
Pusat Penelitian Lingkungan Hidup (PPLH) Universitas Udayana Gedung Laboratorium Universitas Udayana, Lt 4. Jln. PB. Sudirman Denpasar, Bali-INDONESIA Telp./Fax. (+62 361) 261 182
Location
Kota denpasar,
Bali
INDONESIA
Bumi Lestari
Published by Universitas Udayana
ISSN : 14119668     EISSN : 25276158     DOI : https://doi.org/10.24843/blje
Bumi Lestari Journal of Environment (p-ISSN: 1411-9668; e-ISSN: 2527-6158) is a peer-reviewed journal, presents original research articles and letters in all areas of environmental studies and environmental sciences (biotic, abiotic and social/cultural). This journal has been indexed by cabdirect cabi.org, AJD (Academic Journals Database), ISJD (Indonesian Scientific Journal Database), IndexCopernicus, Portal Garuda, researchBib and Google Scholar. The journal is published by Environmental Research Center (PPLH) of Udayana University. The journal is published two times a year: February and August in both printed and online versions. The online version is free access and download. This journal is devoted to publish research papers such as environmental biology, environmental physics, environmental health, ecology, geosciences and environmental chemistry including such matters as land, water, food, conservation, population, risk analysis, pollution, energy, economics of ecological and non-ecological approaches, social advocacy of arguments for change, analytical methods, legal measures, implications of urbanism, energy choices, waste disposal, health effects, recycling, transport systems, political approaches, social impacts and other issues of mass society. There is concern also for marginal areas, under-developed societies, minorities, species loss, etc. The purpose of this journal is to provide input and its solution to the environmental problems that has happened or will be happen from the results of researchs.
Articles 445 Documents
MAKROZOOBENTHOS PANTAI PERERENAN (KABUPATEN BADUNG): JENIS, STATUS, DAN MANFAATNYA BAGI MASYARAKAT Ngurah Intan Wiratmini; Joko Wiryatno; A.A.G. Raka Dalem
Bumi Lestari Journal of Environment Vol 8 No 2 (2008)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

The research was undertaken on Pererenan beach in the Regency of Badung, Bali Province, between September and December, 2006. The study sites occur close to the downstream of Bausan creek, the location of which were part of ”Subak Kedungu” irrigation system (east of the creek) and ”Subak Munggu Tegal Lantang” irrigation system (west of the creek). Samples were taken on low tides periods of the intertidal zones of the beach. Samples were stratified randomly taken on three kinds of substrates: on sand and coral substrates on the west, sand substrates in the middle and hard sandstone on the east, each of which consist of five quadrates of 40 cm x 40 cm. Results of this research showed that on the site have been successfully identified 17 species of macrozoobenthic fauna. None of them were classified as protected species. The macrozoobenthic fauna on Parerenan beach had a medium level of index of diversity (IK = 2,598). This meant that, the beach ecosystem in Pererenan was in a stable condition with a medium level of diversity. From the benefit and problems related to their occurrence, it can be described that macrozoobenthic organisms on this study sites, some can be consumed. Besides, there were also some species which dangerous to human because they can cause bleeding, or dangerous hurt caused by sharp needles.
SIKAP MASYARAKAT LOKAL TERHADAP KONSERVASI DAN TAMAN NASIONAL SEBAGAI PENDUKUNG KEPUTUSAN DALAM PENGELOLAAN TAMAN NASIONAL KERINCI SEBLAT (STUDI KASUS DI KABUPATEN KERINCI DAN LEBONG, INDONESIA) Teguh Adiprasetyo; Eriyatno Eriyatno; Erliza Noor; Fadjar Sofyar
Bumi Lestari Journal of Environment Vol 9 No 2 (2009)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

The number of national parks in Indonesia increased rapidly since 1982. Support from local people plays an important role in sustaining national parks, therefore their needs, aspirations and attitudes should be considered to assure better national park management. This research was intended to discern the knowledge, perception and attitude of local people residing close to Kerinci Seblat National Park towards the park and its conservation initiatives, to identify factors affecting them, and to determine if local communities perceived more benefit from the park were likely to support it. Knowledge of local people about the existence of the park and regulation governed it was high. However, knowledge of local people about its function and benefit for society was relatively low. Attitudes of local people on the park and its conservation initiatives was affected by many factors including their involvement in an organization, administrative residence affiliation (district), ethnic, formal education attainment, distance of residence to national park, income, family size, affluence, and agricultural land ownership. Almost all of the local people perceived that the park did not give them economic benefit directly, therefore they expected to be involved in planning and making use of it. They also perceived that it was needed to conserve natural resources and supply ecological services. However, most of the people perceived that their lives did not depend on the park, so its existence should not be guarded collectively.
EFFECT OF SEASONAL ON NUTRIENT LOAD INPUT THE INNER AMBON BAY F.S. Pello; E.M. Adiwilaga; N.V. Huliselan; A. Damar
Bumi Lestari Journal of Environment Vol 14 No 1 (2014)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

Input nutrients into the Inner Ambon Bay very influenced by season. Activity in the bay and input nutrients from land and  outer Ambon Bay as well as the influence of upwelling in  Bandasea could increase eutrophication in the bay. This study aimed to analyze the influence of freshwater and  the exchange of sea water to the concentration of nutrients in  Inner AmbonBay. The study was conducted from June 2011 to May 2012. Average content of nitrate in East season (0.04 to 2.36 µM (0.57±0.78), Transition Season II 0.05 to 2.20 µM (0.36±0.67); andTransition Season I0.09 to 1.66 µM (0.59±0.47) are higher while the West season 0.05-0.10µM (0.06±0.02) is lower than the water quality standard for marine biota. Average value of phosphatein the four seasons is higher than the sea water quality standard, while enter nitrate and phosphates from Outer Ambon Bay in the East Season is larger than from river. Temporally andspatially condition of Inner Ambon Bay are oligotrophic and mesotrophic. Flushing time in Inner Ambon Bay is 14 days.
Cover Depan Bumi Lestari Vol 18(2), 2018 Cover Depan Bumi Lestari Vol 18(2), 2018
Bumi Lestari Journal of Environment Vol 18 No 2 (2018)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Sebaran Pola Pertumbuhan Ikan Red Devil (Amphilophus sp) Di Kawasan Danau Batur, Bali I Wayan Juliawan; I Wayan Arthana; Endang Wulandari Suryaningtyas
Bumi Lestari Journal of Environment Vol 20 No 2 (2020)
Publisher : Environmental Research Center (PPLH) of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/blje.2020.v20.i02.p05

Abstract

Batur Lake is one of the lakes located in the Kintamani sub-district, Bali. This lake has abundant biodiversity, one of them is Red Devil fish (Amphilophus sp) which is a competitor of native and introduced fish. The research aims to find out the pattern of growth, size structure, and the physical and chemical conditions of waters. The method used was descriptive quantitative by using two trapping devices that were fishing rods and nets. Calculation results showed that a wide range of growth patterns of Red Devil (Amphilophus sp) fish on both trapping devices (fishing rods and nets) were grouped (Id<1). The highest sized structure value on the trapping devices (fishing rod) found in the water of Trunyan Village that was total length (TL) of 9,3 cm, Standard length (SL) of 7,3 cm, and weight: 16,5 gr. On the trapping devices (net) the highest value was found in the water of Songan Village that was total length (TL) of 13,5, SL of 11,1, and weight: 48,8 gr. The growth patterns of Red Devil (Amphilophus sp) fish based on length and weight analysis showed that were partly positive allometric and partly negative allometric. The result of the water quality measurement in the water of Batur Lake was about 26,3°C – 29,1°C (temperature), 5,36 mg/L – 6 mg/L, (DO), 7,2 – 7,8 (pH), and 87,1 cm – 147,8 cm (brightness).
Dampak Covid 19 Terhadap Ekonomi dan Lingkungan di Bali Shinta Enggar Maharani
Bumi Lestari Journal of Environment Vol 21 No 1 (2021)
Publisher : Environmental Research Center (PPLH) of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/blje.2021.v21.i01.p04

Abstract

The island of Bali as one of the tourism centers in Indonesia has felt the huge impact of Covid 19. The economy of Bali, which relies on tourism with natural and cultural beauty, has experienced a very drastic decline. Data shows that the number of foreign tourists to Bali in January 2021 has decreased as deep as 93.33%, compared to the record in December 2020 and when compared to January 2020, the number of foreign tourists to Bali was recorded to have decreased by almost 100%, namely -99.998% (BPS, 2021). This paper aims to determine the impact of Covid 19 on the economy of Bali, which relies on environmental and cultural sustainability-based tourism as a tourist attraction. This paper uses a literature review analysis related to the economic and environmental impacts in Bali caused by the Covid-19 pandemic. The impact of the Covid 19 pandemic on the economy of Bali which relies on environmental and cultural sustainability-based tourism as a tourist attraction is enormous. The economic downturn and the increase in the volume of Hazardous waste due to the pandemic are real problems to be faced, although environmental restoration will greatly benefit Bali's future sustainability
Prediction Landslide Location Area Using ANN (Case study in Bangli Regency, Bali Indonesia) I Made Oka Guna Antara; Ricardo Salvador Ríos Márquez; Takahiro Osawa
Bumi Lestari Journal of Environment Vol 21 No 1 (2021)
Publisher : Environmental Research Center (PPLH) of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/blje.2021.v21.i02.p05

Abstract

Landslides are significant geo-hazards heavily impacting many regions of the world regarding human lives and economic losses. The large magnitude of natural forces involved in landslides makes actions of mitigation or prevention unfeasible, with exceptions for minor occurrences or under special conditions. Many old methods have been applied in landslide management and/or prediction, such as overlays or weighting methods. The newest/advanced methods are still being developed and one of the newest methods is Artificial Neural Network (ANN). ANN are biologically inspired computer programs designed to simulate how the human brain processes information. Many types of ANN exist; the most famous one is Multilayer Perceptron (MLP) Neural Network Algorithm with FeedForward model. MLP consists of three parts: the input layers as neurons representing the value of data; the hidden layer, which demonstrates the network training process; and the output layer, which provides the prediction of the landslide areas. In this research, the input layer consists of landslide location characteristics, such as the rainfall intensity, land cover, slope, geological types, and rate displacement of landslides. As a case study, Bangli Regency was selected. In 2017 there was a landslide disaster in the Kintamani District, Bangli Regency, which resulted in dozens of people missing or dead, and several houses destroyed. In this study different numbers of neurons were used in the hidden layer (15, 50, 100, and 150 neurons). The best performance is obtained at 150 neurons, with 0.9677 (96,77%) for the test set.
Status Mutu Air Sungai Unda Pada Lahan Eks Galian C Kabupaten Klungkung I Made Sara Wijana; Abd. Rahman As-syakur; Made MS Mahendra; I GA Kunti Sri Panca Dewi
Bumi Lestari Journal of Environment Vol 20 No 2 (2020)
Publisher : Environmental Research Center (PPLH) of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/blje.2020.v20.i02.p02

Abstract

The Unda River (Tukad) is the second largest river in Bali Province after the Ayung River. The Unda River has been used for various activities, such as tourism activities for white water rafting and agricultural irrigation activities. In addition, Unda River water is planned to be used as a raw water source in the planned construction of the Bali Cultural Center (PKB) which is planned to be built in the lower reaches of the Unda River. Therefore, it is necessary to conduct research related to the water quality of the Unda River, especially in the Lower Unda River. Water quality analysis refers to class II water quality standards according to the Bali Governor Regulation Number 16 of 2016. Meanwhile, the analysis of water quality status uses the pollution index (IP) according to the Decree of the Minister of the Environment Number 115 of 2003. The results of the analysis show that water quality parameters that exceed the highest quality standard is downstream (sampling point 3) with 4 (four) parameters, namely Total Dissolved Solid (TDS), chemical oxygen demand (COD), total coliform and fecal coli. While the sampling points 1 (one) and 2 (two), the parameters that exceed the quality standard are total coliform and fecal coli. In addition, the results of this study also show that the pollution index value downstream is increasing, where at sampling point 1 which is a DAM location has a pollutant index of 3.78 (light pollution) and at sampling point 2 of 6.27 (moderate pollution) and at sampling point 3 of 7.67 (medium polluted).
Cover Depan Bumi Lestari Vol 20(2), 2020 Cover Depan Bumi Lestari Vol 20(2) 2018
Bumi Lestari Journal of Environment Vol 20 No 2 (2020)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Willingness To Pay Konsumen Pengguna Air Di Sub-Das Kali Dendeng – Kota Kupang Jusuf Manilapai; Fredrik L. Benu; Agus A. Nalle
Bumi Lestari Journal of Environment Vol 21 No 1 (2021)
Publisher : Environmental Research Center (PPLH) of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/blje.2021.v21.i01.p01

Abstract

Global awareness towards climate change has been a serious concern for archipelago countries due to water shortage. This problem even causes more serious life-threating phenomenon because water is one of the main resources for energy circulation. Whether change anomalies have brought about impacts on seasonal shift on several islands of Indonesia, including those in East Nusa Tenggara province. These islands experience drought. Fresh water availability for industry and domestic use in cities like Kupang has been a serious problem. This issue becomes worse in recent years due to significant increase of city population. Public responsibility to maintain natural environment and resources is therefore required. This study tries to investigate public concerns over the water shortage issue in order (1) to know to what extent public is willing to pay their consumption of fresh water provided through Sub-DAS Kali Dendeng; and (2) to analyze factors that influence the willingness of the fresh water consumers to pay for environment services provided at Sub-DAS Kali Dendeng. Quantitative approach which relies on primary and secondary data gathered through interview and field observation is applied in this study. The data were analyzed by using Dichotomous Choice CVM, Turnbull Method, and Logistic Regression to find out WTP value. The results of this analysis are described within the environmental science perspective to find out the relationship among various factors for being water consumer responsibility towards water resources preservation at Sub-DAS Kali Dendeng in Kupang. The results of the analysis show that the willingness to pay for fresh water by consumer at Kelurahan Manutapen, Mantasi dan Airmata is significantly high. They are willing to pay between Rp. 3.362 to Rp.11.328 according to WTP calculation. This amount is much higher than that determined by the city freshwater supplier company (PDAM). The facts for the reason why the consumers are willing to pay for higher amount for fresh water supply are determined by several factors; they include bidding value, consumer’s level of education, consumer’s income, water quality, and the amount of the family members. These factors simultaneously influence the water consumer willingness to pay for the water they consume; and this willingness factor has significantly high impacts as seen in Negelkerke R. Square value at 0,600, or being comparable to 60%; meaning that various factors of 60% in Y are able to explain all free variable in X. Respondents for this study are those who use fresh water supplied from Sub-DAS Kali Dendeng, and those who reside around the Sub-DAS Kali Dendeng. It is believed that there must be more citizens around the Sub-DAS Kali Dendeng, who also contribute negative impact toward the ecological environmental change, yet these individuals have no direct responsibility, and therefore the responsibility for the environmental conservation examined trough this study might not be thoroughly measured by the amount of WTP they pay.