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Bumi Lestari
Published by Universitas Udayana
ISSN : 14119668     EISSN : 25276158     DOI : https://doi.org/10.24843/blje
Core Subject : Humanities, Science, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Humanities Earth & Planetary Sciences Energy Environmental Science
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.
Arjuna Subject : Ilmu Lingkungan (semua ketegori) - Ilmu Lingkungan (Lain-Lain)
Articles 445 Documents
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THE ECOLOGICAL ROLE OF TREES AND THEIR INTERACTIONS IN FORMING THE MICROCLIMATE AMENITY OF ENVIRONMENT Imawan Wahyu Hidayat
Bumi Lestari Journal of Environment Vol 10 No 2 (2010)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

Plants, especially species of trees, have an important role in modifying the microclimate, particularly temperature and humidity. This study was aimed to evaluate the effectiveness of trees in modifying the temperature and humidity and their interaction in forming the microclimate amenities. There are two methods in the study, first by comparing the temperature and humidity between open space free of shading and under the shade of tree canopies. Sample trees used as many as three trees which are Bunga Sapu tangan (Maniltoa schefferi), Bauhinia (Bauhinia purpurea), and Tanjung (Mimusops elengi). The second method is by making the observation grid which sized 50 x 50 meters that is divided into grids of smaller-sized grid of 10 x 10 meters, then analyzed the air temperature to make the isotherm lines. The study shows that trees can significantly lower the temperature (2.9-7.4 OC) and increase the humidity (0.1-3.9%). Nevertheless, the tree has a limited role and can’t stand alone in order to form microclimate amenity in the environment (THI> 26).
BIOREMEDIASI LIMBAH RUMAH TANGGA DENGAN SISTEM SIMULASI TANAMAN AIR Guntur Yusuf
Bumi Lestari Journal of Environment Vol 8 No 2 (2008)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

This research was aimed to find out the influence of bioremediation with simulation on some compositions to increase the quality of treated domestic wastewater, to describe the role of aquatic plant compositions, and to measure the effectiveness of each aquatic plant in reducing levels of pollutants. Laboratory tests were performed to recognize the waste quality, including physical, chemical and microbiological qualities, after bioremediation processes. Bioremediation process obviously had significant effects on the increase of treated domestic wastewater quality. Aquatic plant compositions and dilution factors were obviously interacting in increasing the quality of treated domestic wastewater. The composition of aquatic plants provided distinctive effects. Each kind of aquatic plant provided a specific effect on the increase of the domestic wastewater quality in various percentages.
KAJIAN PENYERAPAN LOGAM BERAT AIR RAKSA (Hg) DENGAN MENGGUNAKAN KARBON AKTIF BATUBARA SUB-BITUMINUS YANG DIKARBONISASI (COALITE) Solihin Solihin; Chusharini Chamid; Garlan Sugarba
Bumi Lestari Journal of Environment Vol 9 No 2 (2009)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

One of diversification usage of coal is made for carbon active. The main element in coal which is very useful for carbon active is carbon (C) as other raw materials such as bone, coffee bean, coconut shell, etc. This research used carbonized coal from PT.Bukit Asam as a media to absorb methyl mercury (CH3Hg+2) solution. The carbonized coal has iodine number of ± 386 mg/gram after it was activated at 9000C for 1 hour. It has an adsorption level of 70-80% because the SEM photograph showed a pore size of coarse fraction higher than fine fraction. The degree of saturation is influenced by the grain size of the coal carbon active where the saturation degree of coarse fraction was relatively faster than the fine fraction. Moreover, weightier and bigger debit of carbon active could adsorb higher MeHg concentration.
PEMBERDAYAAN TOUR GUIDE EKOTURISME DI KAWASAN CAGAR BUDAYA DANAU TAMBLINGAN-BATUKARU BALI I Nyoman Wardi
Bumi Lestari Journal of Environment Vol 13 No 2 (2013)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

AbstractTraining Ecotourism Tour Guide Batukaru Heritage Region-Lake Tamblingan performed atMunduk Buleleng on 1 until 7 September 2012. The community service was held in SD 3hall Tamblingan and the meeting was attended by 20 participants from organisation guide(OBB) including the head of OBB (Organisasi Bangkit Bersama). The aims of this trainingto enhance the knowledge and skills as a tracking tour guide in Batukaru-Tamblingan.Training is also intended to provide a briefing on the knowledge ecosystem of lakes, forestand about the history and function of the cultural heritage in the region Batukaru-Tamblingan which now has been declared by UNESCO as a World Cultural Landscape inBali.As a local tour guide, which is still weak foreign language skills, age, and education levelof the participants is quite heterogeneous effect on the rate of absorption ability and spirittraining. Ecotourism tour guide training is expected to re-integrate the social cohesionand sustainable society in harmony.Recognizing the heterogenity of the condition of the trainee, techniques and methods ofpresentation of training materials, must be adapted to the conditions so that the materialcan be absorbed optimal. The first material was delivered in a lecture and presented byusing the Microsoft Power Point program and discussion to increase participants intereston the topic. Second, the practice of direct methods on objects that exist in the empiricalTamblingan Munduk Village. The practice of tour guide in the field for two days with shorttrack and medium tract.Based on the evaluation performed the training process, and from the impressions andmessages conveyed by the trainees at the time of closing, was satisfied and happy training.A participants gave very enthusiastic responses and are expected to continue to be thequality of human resources and OBB members of the community can be improved.
Hukum Minimum Liebig - Sebuah Ulasan dan Aplikasi Dalam Biologi Kontemporer Wendy Achmmad Mustaqim
Bumi Lestari Journal of Environment Vol 18 No 1 (2018)
Publisher : Environmental Research Center (PPLH) of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/blje.2018.v18.i01.p04

Abstract

Optimum plant growth depends on numerous ecological factors. In relation to this theme, there is an old law called Law of the Minimum Liebig. The postulate discussed the growth of the plant that is determined by the scarcest environmental factors. It is one of the oldest ecological postulate proposed more than one and a half-century ago. It has become one of the most important foundations for agriculture and biology, even the in contemporary biology. This short review will provide the history, principles, development and criticism, and applications in some recent biological sciences, including evolution, conservation, ecological indicator and even climate change.
ANALISIS VEGETASI DAN PENDUGAAN KARBON TERSIMPAN PADA POHON DI KAWASAN SEKITAR GUNUNG DAN DANAU BATUR KINTAMANI BALI Wawan Sujarwo; I Dewa Putu Darma
Bumi Lestari Journal of Environment Vol 11 No 1 (2011)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

Reforestation program of bare land with planting several species of trees has been done on several areas around Mountain and Lake Batur. So that, the study of trees vegetation analysis and estimating of carbon stock needs to be done as well. A total 2400 m2 Sampling Plot with 6 plots (20 x 20 m) in four areas has been established to determine trees structure, composition, and carbon stock (above ground) in around Mountain and Lake Batur Kintamani. Enumeration of all tree species revealed that there were 11 species and 10 families with Eucalyptus urophylla (Myrtaceae) was the most abundant species and family in the Sampling Plot with INP was 97.24%. Shannon Index (H’) revealed that tree species composition was 0,8. It means the diversity of trees is low. The amount of carbon stock (above ground) was 28.0669 ton per 0.24 Ha. It means, total carbon stock in 400 Ha secondary forest around Mountain and Lake Batur was 46,778.17 ton.
PLANTS AS ECOTOUR ATTRACTIONS AROUND TRAIL OF MANGROVE INFORMATION CENTRE IN MANGROVE FOREST OF SOUTHERN BALI I G. A. Sugi Wahyuni; I P. G. Ardhana; S. K. Sudirga; I K. Ginantra
Bumi Lestari Journal of Environment Vol 5 No 2
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

A study on plants species sighted around mangrove information centre ofNgurah Rai Mangrove Forest (Tahura Ngurah Rai), Sothern of Bali province(Indonesia), was undertaken in March 2004. The plants sighted on both sides of themangrove trail were listed. Their potential as ecotour attractions was then identified.Results of the study showed that there were 42 plant species identified aroundmangrove trail of this forest. Twelve mangrove species in this ecosystem may act asmajor attractions to the tourists doing tracking there. Information on protected species,the potential use of plants for humans, such as for animal fodder, medicine, the use inancient Balinese community, in traditional way of life of Balinese which is last untilnow, the use for offering in Hindu’s ceremony may also be interesting for tourists.Some plant species may cause problems to tourists who doing trekking so needprecaution, including on those which cause bleeding and disturbance to humanbreathing.
PENCEMARAN BTEX DAN LOGAM BERAT PADA HUTAN MANGROVE PESISIR TAMBAK LEKOK Edyson Indawan
Bumi Lestari Journal of Environment Vol 9 No 1 (2009)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

This research was aimed to explore land function changes and contamination levels (BTEX and heavy metals) on the mangrove area. The results of BTEX parameters from soil sample and indentified benzene showed heavy metal contaminations on Plot A, B, C and D were16.30 ppm, 81.30 ppm, 56.90 ppm, and 93.50 ppm respectively, but it was not detected on Plot E. Toluene contaminations was 481 ppm, 824 ppm, 490 ppm, 896 ppm, and 93.50 ppm. It showed that Plot B and D were heavily contaminated. Based on EC values of water, it showed that contamination was heavy on Plot B (4.76 us/cm), Plot C (4.67 us/cm), Plot D (4.64 us/cm) and Plot E (4.66 us/cm). Based on water samples and detected benzene, it indicated an heavy contamination on Plot A (24.30 ppm), Plot B (8.13 ppm), Plot C (20.20 ppm), Plot D (8.13 ppm), Plot E (8.13 ppm), while toluene (460 ppm, 522 ppm, 509 ppm, 319 ppm, 522 ppm) contaminated slightly. Ethylbenzene and Xilene were not detected by gas chromatography. EC value of soil showed that intensive contamination occurred on Plot E (4.81 us/cm). It showed that intensive contamination took place on soil mainly by Pb contamination on Plot C, Plot D, and Plot E (5.98 mg/kg, 7.24 mg/kg, and 6.43 mg/kg). Meanwhile, Plot A and B were slightly contaminated only. The same levels occurred on Cu for all plots, except Plot A (6.22 mg/kg). Zn and Cr did not contaminate, while Ag and Cd were not detected. Water medium was not contaminated by Pb, Cd, Cr, and Zn. Furthermore, Ag and Cu were not detected.
ANALISIS DAYA DUKUNG LINGKUNGAN SEKTOR PERTANIAN BERBASIS PRODUKTIVITAS DI KABUPATEN BANGLI I Wayan Susanto
Bumi Lestari Journal of Environment Vol 13 No 1 (2013)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

AbstractThe agricultural sector has multi-functions covering the food production or food securityaspects, the increase of farmer welfare or the eradication of poverty, and the preservation oflife environment. The analysis of the supportability of the agriculture sector environment isusing the land supportability approach based on land productivity, which is conducted bycomparing between the supply and demand of land for the population in a certain region.By this method, the general description whether the supportability of land in a certainregion is on surplus or deficit can be understood. The objective of research is to analyze thesupportability of agriculture sector environment based on land productivity. The approachused in this research is quantitative descriptive, while the analysis tools used are: descriptiveanalysis; the analysis against the supply and demand of land based on the calculationmethod suggested by The Decree of The State Minister of Life Environment No.17 of 2009.The Result of this research indicates that the status of environmental supportability ofBangli District on 2011 is shown by land supply (SL) which reaches 167,947.58 Ha andland demand (DL) which attains 74,173.77. These figures are based on the land supportabilityapproach that emphasizes on the land productivity in meeting the demand of biologicalproduct of the region. The comparison between land supply and land demand will facilitatethe environmental supportability status, which is in the surplus category that is SL > DL.
DAYA DUKUNG HIJAUAN PAKAN DALAM KONSERVASI SAPI PUTIH TARO I W. Suarna; M. A.P. Duarsa; N. P. Mariani; L. G. Sumardani; S. A. Lindawati
Bumi Lestari Journal of Environment Vol 16 No 1 (2016)
Publisher : Environmental Research Center (PPLH) of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/blje.2016.v16.i01.p06

Abstract

White cattle Taro is a Bali native germplasm that must be preserved in accordancewith the mandate of the Millennium Development Goals to reduce the rate of loss ofbiodiversity as a valuable genetic resources.  At this time, the population of White cattleTaro is 34 heads, which the conditions still cause for concern because of the increasingpressure of various factors. When the white cattle graze in their natural habitat (forestTaro) White cattle Taro to reach a population of 150 animals (2001). Pressure againstwhite cow increasingly widespread because the land is narrow and increasing the amountof forage that should be provided in rotation by traditional society village of Taro. Tarovillage located in District Tegallalang, close to Districts Payangan Gianyar regency. Twodistricts are developing leading commodity Bali cattle. While White cattle Taro also requiresthe availability of forage species are the same as Bali cattle. The results showed that carryingcapacity of forage for White cattle Taro started to decline so that the necessary strategicapproach to the conservation of taro white cattle in order to accelerate the achievement ofthe millennium development. Such efforts are: 1) improving the efficiency of forageproduction 2) optimizing the utilization of forage 3) optimization of land use and cultivationof superior feed and 4) technological capacity building of local feed plant.

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