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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
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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 432 Documents
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KEBUTUHAN RUANG TERBUKA HIJAU PADA KAWASAN PUSAT KOTA JAYAPURA Alfini Baharuddin
Bumi Lestari Journal of Environment Vol 11 No 2 (2011)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

Jayapura downtown continues to growing very rapidly along the increasing of population, demand of land, and number of motor vehicles and it affects to the increasingly dense of Jayapura downtown area, which results to the problems of land use and the decrease of environment quality. Therefore, it is necessary to create green open spaces to reduce the environment impact. This paper aims to analyze the needs of green open spaces in Jayapura downtown by several variables: the percentage of land area, the number of population, and the need of oxygen. The findings showed the current green open spaces available are still below standard since only the city park has meet the requirement of minimum area. It should be efforts to solve this problem by revegetation and optimalizing the available lands as green open space, the use of green roof, and green living like providing bicycle lanes and pedestrian paths.
IDENTIFIKASI CEMARAN LOGAM Pb DAN Cd PADA KANGKUNG YANG DITANAM DI DAERAH KOTA DENPASAR Sri Mulyani; I.G.A Lani Triani; Arief Sujana E.N
Bumi Lestari Journal of Environment Vol 12 No 2 (2012)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

The aimed of the research to identify the contamination of Pb and Cd on water spinach (Ipomeasp) planted at Denpasar. Sample population are 41 places area planted of water spinach, atKecamatan Denpasar Selatan 10 places , Denpasar Utara 10 places, Denpasar Timur 13 placesand Denpasar Barat 8 places. Sample has taken from 40% population, 13 areas planted of waterspinach at Denpasar. From Kecamatan Denpasar Barat 3 samples, Kecamatan Denpasar Timur3 samples, Kecamatan Denpasar Selatan 3 samples and 4 samples from Kecamatan DenpasarTimur. Samples taken 1-1.5 kg every area in the morning and identification of Pb and Cd areusing Kohar et. al., method and analyzed with Atomic Absorbsion Spectrophotometer (AAS). The result showed that no contamination of Pb on water spinach planted at Denpasar. Waterspinach has contamination Cd 0-0,00682 mg/kg. The water spinach which planted at KecamatanDenpasar Barat has lowest contamination of Cd, water spinach planted at Denpasar areproper to be consumed.
DAMPAK BENSIN TANPA TIMBAL (Pb) PADA SEMESTER PERTAMA TERHADAP KUALITAS UDARA KOTA DENPASAR ANAK AGUNG GEDE SUGIARTA
Bumi Lestari Journal of Environment Vol 4 No 2
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

This study was to effect premium the air quality composition at Denpasar City. Theobjective test were carried out at a 3 place overload to transportation at Denpasar city andcritical quality parameters of Pb. The results indicated that the recommended air qualitycomposition is 88,298 NO2 at Gajah Mada Street and 521,48 CO at Suci Street.
EFEKTIVITAS EKSTRAK DAUN JATI ( TECTONA GRANDIS L. F) DALAM MENGHAMBAT PERTUMBUHAN JAMUR HORMISCIUM Sp. Ni Putu Adriani Astiti
Bumi Lestari Journal of Environment Vol 15 No 1 (2015)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

A research on effectiveness of extracts of teak (Tectona grandis L. f) leaves in inhibit thegrowth of a species of fungi, Hormiscium sp. has been carried out.  The leaves used in thisresearch were young leaves (number 1 and 2), and old ones (number 5 and 6), with fourconcentrations: 0, 2, 5, and 10 %.  The media utilised were bean sprouts agar, and thereplications was 3 times.  Qualitative tests were undertaken for the flavonoids, while alkaloidtests were based on Culvenor Fitzgerald methods.  Qualitative tests of triterpenoids andsteroids were undertaken by utilising Lieberman – Burchard reagents (L-B reagents).Parameters observed were colony diameters, micellium weights (dry mass), and numbers ofconidia (ml).  Results of this research showed that extracts of teak (T. grandis) leaves wereable to inhibit the growth of Hormiscium sp.  The capability of inhibitions was increased asthe extract concentrations increased (for both, that of the young and old leaves), eventhough extracts of the young provided a higher capability of inhibitions compared to theold ones.
MEMPELAJARI GEJALA PERUBAHAN IKLIM MELALUI ANALISA DERET WAKTU CURAH HUJAN DI DAERAH TANGKAPAN AIR PROVINSI LAMPUNG Tumiar Katarina Manik
Bumi Lestari Journal of Environment Vol 10 No 2 (2010)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

One important climate factor for tropical area is rainfall. Changes in rainfall pattern will cause numerous problems especially in agricultural activities and it could also lead to either flood or drought; problems which will not only affect agricultural activities but also socio-economic situation of broad community. Therefore, study of local climate variability focusing on rainfall related to the global warming is important. Time series analysis ( correlogram and periodogram) of daily rainfall was chosen to investigate the phenomena of global warming in local scale. Data (1974-2004) was collected from Sumberjaya, Air Hitam and Fajar Bulan; three stations located inside one of the important watershed in Lampung Province. From the correlogram, in general daily rainfall in this upland and forest area shows independency up to the year of 1990. No seasonal pattern could be an indicator that rains in this area are controlled more by local topography and land cover condition then by larger scale of climate system such as monsoon. After 1990 there were some weak sign of seasonal pattern. This could be interpreted as a sign that larger climate system started influence the local rainfall and as the global warming increases, it could be predicted that local rainfall pattern will be controlled more by the larger climate system. The periodogram shows that rainfall in this area has weak annual periodic. Data from Sumberjaya on 1990-1994 and 1999-2006 showed that annual periodic were getting stronger; a sign that larger climate system started dominating the area.
PENGEMBANGAN SISTEM PENGELOLAAN SAMPAH DI KOTA PAREPARE Sukaji Sarbi
Bumi Lestari Journal of Environment Vol 8 No 1 (2008)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

Waste is often viewed as a problem in human life. On one hand, waste is considered as having no economic value, thus disposed; on the other hand it is viewed as useful material. The purpose of this research was to develop a waste management system in Parepare. It was conducted in a region of 99.33 km2 consisting 21 villages. The location was determined on the basis of population density, resulting in the villages of: Wattang Soreang, Labukang, and Lumpue. The primary data was obtained from 100 respondents, and the secondary data from various related institutions. The respondent profile shows that 87.0 % respondents are males and 13.0 % females. In terms of education level, around 11.0 % respondents are of elementary schools, 23 % of junior secondary schools, 52 % of senior high schools, and 14.0 % of tertiary education. 64.0 % respondents are state civil servants and National Army, 15.0 % self-employed, 12.0 % farmers and fishermen, and 9.0 % laborers. At present, the waste management system is not optimal because of limited vehicles of waste removal, field workers, and waste collecting facilities, thus only as much as 256 m3/day .
KEMAMPUAN ADSORPSI BATU PASIR YANG DILAPISI BESI OKSIDA (Fe2O3) UNTUK MENURUNKAN KADAR Pb DALAM LARUTAN I.G.A. Kunti Sri Panca Dewi
Bumi Lestari Journal of Environment Vol 9 No 2 (2009)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

The capability of sandstone coated with Fe2O3 as adsorbent to reduce lead (Pb) content in solution has been stadied in this research. The adsorption process of Pb in solution by sandstone was carried out by immersing sandstone (uncoated A0) in Pb(NO3)2. Coating sandstone was done using Fe(NO3)3.9 H2O with different concentration as follows : 10 g (A1), 20 g (A2) and 30 g (A3) in 50 ml aquadest. To find out the optimum concentration of Fe(NO3)3 as coating agent. The adsorption process of coated sandstone was done by immersing them in Pb(NO3)2 solution. To determine the time of optimum adsorption, the sandstone (coated and uncoated) were immersed for a period of their equilibrium adsorption time. The absorbance of the filtrat resulted from adsorption process was determined by atomic absorption spectrophotometer at ? 217 nm. The result showed that optimum concentration of Fe(NO3)3 as coating agent was 20 g (A2) with the capability absorbing lead (Pb) 4.653 mg/g. The capability of A3 as adsorbent was 4.644 mg/g and the capability of A1 was 4.529 mg/g while the capability uncoated sandstone as adsorbent was 2.784 mg/g.
KEARIFAN LOKAL DI BALIK MITOS LEMBU PUTIH DI DESA TARO, GIANYAR I.B.G. Pujaastawa
Bumi Lestari Journal of Environment Vol 13 No 2 (2013)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

AbstractThe study tried to reveal the local wisdom which resided behind the myth of white ox atTaro village, Gianyar. According to conception of social confidence at Taro village, existencethe white ox in the village represent the holy animal owned by deity who protecting theirlife. On that account, the society always treat it very respectively and prohibiting to exploitit for secular purposes. The phenomenon tried to comprehended by using cultural materialismapproach to expose the rationality which hidden behind the myth of the white ox. Currently,according to view of cultural materialism, stated that behind the traditional societyconfidence system often there are rational logics as form of adaptation response to economicconditions and ecology faced. This study found that behind myth about the white ox in Tarovillage consisted economic benefit and ecology in the form of, (1) distribution of agriculturearea and fee for the who herds, (2) as mechanism of pest control and (3) as mechanism ofgenetic purification of the white ox as endemic animal.
Skrining Bakteri Dekomposer Sebagai Penghilang Bau Kotoran Ayam Nika Ropiatningsuari; Suryo Wiyono; Suryahadi Suryahadi
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.p03

Abstract

The decomposition of chicken excreta produce odorous gases, that case environmental pollution. One of alternative technique to reduce the odorous gases is by applying specific bacteria. The aim of this study was to obtain bacterial isolates that capable of reducing NH3 and H2S production and odors. Decomposer bacterial candidates were isolated from chicken manure, guano, and peat soil. Selection of isolates of oxidizing bacteria is carried out using selective media. All isolates that were found from chicken manure, guano, and peat soil tested for hypersensitive reaction on tobacco and hemolysis on blood agar. The isolated bacteria that showed negative HR and HL responses than used for a further experiment. Five isolates of bacteria which reduce odors based on organoleptic test were WiK 15, TnK 7, WiGu 11, CGu 7 and MaGa 5. NH3 and H2S from decomposition chicken excreta were analyzed by spectrophotometric and colorimetric method. The average of total NH3 production from seven days observation showed ranged level from 1.09 ppm to 1.77 ppm, while total H2S gas production ranged from 15.05 to 16.57 ppm. Bacterial isolate CGU 7 showed make lowest total production of NH3.
ANALISIS VEGETASI DI KAWASAN HUTAN DANAU BUYAN TAMBLINGAN BALI SEBAGAI DASAR UNTUK MANAJEMEN KELESTARIAN KAWASAN Sutomo Sutomo; 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

Vegetation analysis in Buyan-Tamblingan Nature Recreation Area aimed to identified whether there were differences between the two communities in terms of vegetation structure and composition. NMDS ordination revealed data that support the hypotheses that the two communities were different (RANOSIM=0.7 p<0,001). Species diversity was also different between these communities. Buyan area had higher diversity index (Shannon 2,00) compare to Tamblingan (1,60). Differences in tourism activities and impacts were proposed to be one of the reason behind the results. Restoration in a form of reintroduction, to reintroduce and re-planting native or local species is proposed to be conducted in the Buyan Lake areas to conserve the ecosystem and prevent exotic species to become invasives and dominates the area.

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