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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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UPAYA MENDAPATKAN AGENS BIOKONTROL PENYAKIT PENYAKIT LAYU TOMAT FUSARIUM OXYSPORUM F.SP. LYCOPERSICI MELALUI EKSPLORASI DAN UJI POTENSI PGPR ISOLAT BAKTERI PSEUDOMONAS SPP. I Ketut Widnyana
Bumi Lestari Journal of Environment Vol 11 No 2 (2011)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

In this experiment the rhizosphere of several plants were explored to obtain Pseudomonas spp. A total of ninety soil samples were collected from rhizosphere of maize, peanuts, tomatoes, peppers, squash vines, ferns, onions, kale, and vanilla in all districts and cities of Bali Island.Bacteria were isolated from the rhizosphere soil using a culture media namely, King B agar. King B agar allows the production of fluoresceine (or pyoverdin), a yellow-green pigment that fluorescens under ultraviolet light in certain strains of Pseudomonas. Twenty-two Pseudomonas isolates that produced characteristic pigment from light green to bluish green in the media were obtained. The twenty-two isolates were KB1, KB2, KB4, KB16, KB19, KB24, KB29, KB30, KB32, KB33, KB34, KB36, KB46 KB49, KB61, KB67, KB68, KB69, KB71, KB77, KB78, and KB80. The bacterial isolates were further tested for pathogenicity using tobacco as an indicator plant. Twelve Pseudomonas isolates KB1, KB16, KB19, KB24, KB32, KB33, KB34, KB36, KB49, KB61, KB69 and KB77 were pathogenic while ten isolates KB2, KB4, KB29, KB30, KB46, KB67, KB68, KB71, KB78 and KB80 were non-phatogenic. This result will be subsequently used for evaluation of the induction of resistance in vanilla. Based on the results of the evaluation of isolates as a biological control potential with PGPR (Plant Growth Promoting Rhizobacteria), the isolates from Pseudomonas KB2, KB68 and KB 80 were shown to have the capability to increase growth of indicator plants 14% higher than controls. The study indicated that Pseudomonas were potent as biological control for Fusarium oxysporum F.SP, lycopersici that wilt disease of tomato.
APLIKASI POLYMERASE CHAIN REACTION-RIBOSOMAL INTERGENIC SPACER ANALYSIS (PCR-RISA) UNTUK MENENTUKAN KERAGAMAN MIKROBA TANAH PADA HABITAT TANAMAN PISANG DENGAN DAN TANPA GEJALA LAYU FUSARIUM I Made Sudarma; Dewa Ngurah Suprapta; I Made Sudana; I Gede Rai Maya Temaja
Bumi Lestari Journal of Environment Vol 12 No 2 (2012)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

A major problem in the soil microbiology is 99% soil microbes could not be grown in artificial media; therefore, to describe the true diversity of microbes in the soil must use a molecular approach. The approach was polymerase chain reaction-ribosomal intergenic spacer analysis (PCR-RISA). This method can be used for determining soil microbial DNA profile (the number of DNA bands). The soil samples were collected from three regencies in Bali,  i.e. Karangasem, Klungkung and Jembrana which are the main banana growing area in Bali. Soil sampling was done in two sites in each regency representing the banana habitat with and without Fusarium wilt symptom, by collecting 100 grams of soil surrounding the banana plant at the depth of 20 cm. The result of PCR-RISA showed that DNA profile of the soil microbes in the soil of banana habitat without Fusarium wilt symptom (HN) more than of the soil banana habitat with Fusarium wilt symptom (HF). DNA profiles at HN there were three, each of the indicated 450 bp, 250 bp and <100 bp, whereas in HF were two bands of DNA, each indicated as 250 bp and <100 bp. Based on the number of DNA bands proved that the soil microbial community in the HN is higher than in HF.
PEMANFAATAN TUMBUHAN SEBAGAI OBAT TRADISIONAL DI DESA TRUNYAN KECAMATAN KINTAMANI KABUPATEN BANGLI Sang Ketut Sudirga
Bumi Lestari Journal of Environment Vol 4 No 2
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

pemanfaatan
PEMETAAN DAERAH RAWAN KEKERINGAN DI BALI-NUSA TENGGARA DAN HUBUNGANNYA DENGAN ENSO 2) MENGGUNAKAN APLIKASI DATA PENGINDERAAN JAUH I Wayan Nuarsa; I Wayan Sandi Adnyana; Abd. Rahman As-syakur
Bumi Lestari Journal of Environment Vol 15 No 1 (2015)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

In this study, the use of SPI (Standardized Precipitation Index) combined with remote sensingdata is performed to map vulnerable drought areas in Bali-Nusa Tenggara regions. Analysisalso carried out to find the relationship between Vulnerable drought areas in Bali-NusaTenggara with El Niño phenomena. Bali-Nusa Tenggara islands are a chain of islands thathas a semi-arid climate type and resulted vulnerable to meteorological drought. Therefore,mapping of vulnerable drought areas in the region necessary to be carried out. The spatialpattern of the annual average value of SPI-6 in Bali Nusa Tenggara areas in 1998-2010indicates the spatial distribution follows the ENSO events. It also indicated in the spatialpattern relationship between ENSO and SPI in Bali-Nusa Tenggara islands. This studyindicates that remote sensing data such as TRMM 3B43 has the capability to be used as adata source to analyze the spatial patterns of vulnerable drought areas, particularly in theBali-Nusa Tenggara Islands. In addition, the TRMM data also possible to be used as a datasource to analyze the vulnerable drought areas in other parts of Indonesia.
POLA ASUH ORANG TUA DALAM MEDIDIK ANAK MELESTARIKAN LINGKUNGAN Ida Ayu Gde Yadnyawati
Bumi Lestari Journal of Environment Vol 10 No 1 (2010)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

Environment is a part of the child\'s life. In the environment, students live and interact in the chain of life, called ecosystems. Interdependence between biotic and abiotic environment can not be avoided. That is the law of nature that must be faced by the children as belonging to live beings part of biotic groups. During life, the child can not avoid the natural environment and socio-cultural environment. The interaction of these two different environments is always happening in filling the child\'s life. The family is the neighborhood children. Families play important roles as first and foremost educators. Habits, social attitudes, and creativity of children are affected by parents involvement. Education in this family would not be separated from environmental influences. Therefore, parenting manner is very important role in helping children for environmental preservation.
LAND MANAGEMENT FOR SUSTAINABLE AGRICULTURE IN NORTH COASTAL PLAIN, BALI 1 I Wayan Budiasa
Bumi Lestari Journal of Environment Vol 8 No 1 (2008)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

Intensive farming system development will lead to trade-off between economic benefits in the short run and environmental problems, especially critical soil erosion in the long run. The excessive erosion has reduced soil quality, then caused rapid reduction in land productivity or even made the land unsuitable for agriculture. If agriculture is to become sustainable, land management must be considered as one of best management practices in farming system development. A research in Tembok Village, Buleleng Regency, Bali aims to assess land suitability, soil fertility, soil erosion and conservation, and soil nutrient management for irrigated mixed farming system in north coastal plain of Bali. It is found that coastal area in the study area is classified into poor fertile soil due to the low level of cation exchangeable capacity and organic matter content. It is potentially categorized as marginal suitable (S3) for maize, cassava, groundnuts, sweet potato, melon, chili, banana, cashew, coconut, and palmyra palm; and suitable enough (S2) for mango, papaya and fodder grasses. The erosion level was very light by 2.036 t/ha/yr. This level has good relation with the erosion level by 2.04 t/ha/yr from laboratory experiment result by Sukartaatmadja et al. (2003) with similar characteristic of land and cow manure dosage requirement by 5 t/ha/yr. To improve soil fertility and to keep soil erosion not more than 2.036 t/ha/yr, the minimum 5 t/ha/yr of manure should be added into soil.
SINKRONISASI KEGIATAN PERTAMBANGAN PADA KAWASAN HUTAN I Putu Gede Ardhana
Bumi Lestari Journal of Environment Vol 9 No 2 (2009)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

This article aims at studying the synchronized activity of the mining industry in forestry zone. This article is composed of normative legal research with the statute approach, the case approach and the library approach which uses the documentes of UKL/UPL and the environmental assessment PLTP in Bedugul made by LIPI and PPLH in Unud, as well as the newses from Walhi magazine and news paper “Bali Post”. From the result of this article we know that controversial application for act No. 11 of 1967 and act No. 41 of 1999 have a difference in the uses of preservational forestry area and conservation for the mining activity in almost forestry area in Indonesia, and with issue of decision letter by ministry of Ekoin No. KEP-04/M.EKON/09/2000 concerning with the coordinating research team for utilizing forestry area to the mining. And the result indicated very cleary that government truely disregardes the safety of preserving and conservative forestry. From reason which occurs problem in this side, we must need to revitalization of legal definity, strong prohibitation to using preservational forestry and conservation from the mining industry. And society must take participation to the establishmental activities from beginning, because society will be able to know the estimation of result faster.
KESIAPSIAGAAN MASYARAKAT TERHADAP BAHAYA LAHAR DINGIN GUNUNG MERAPI Ramanditya Wimbardana
Bumi Lestari Journal of Environment Vol 13 No 2 (2013)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

AbstractAfter the 2010 eruption of Mt. Merapi, ten million cubic meter of volcanic material ravagedsettlements, infrastructures, and agriculture areas where it located at downstream area of13 rivers. Lahar becomes threat for 1 million people who live on the flanks because it canflows along the rivers anytime. However, community is still standing in their hamlets andrefuses housing relocation plan that suggested by the government. This research aims toexplore community preparedness for lahar threat in Mt. Merapi flanks. Understanding thisinformation will help policy makers for disaster risk reduction that community empowermentis needed to cope with it. Research method applied with 244 questioners distribution tohousehold who live in four hamlets in Kali Putih riverside and lahar prone area. Analyticalmethod used statistic approach with descriptive analysis. Many households have preparedsome action in order to protect them from lahar despite they have lack of information howto face lahar. This study recommends capacity building forhousehold level and communitylevel by local government and NGOs in lahar prone area of Mount Merapi.
STUDI KUALITAS AIR IRIGASI DUMOGA DI KABUPATEN BOLAANG MONGONDOW PROVINSI SULAWESI UTARA Sofia Wantasen; Joudie. N. Luntungan
Bumi Lestari Journal of Environment Vol 17 No 2 (2017)
Publisher : Environmental Research Center (PPLH) of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/blje.2017.v17.i02.p04

Abstract

Water Irrigation a very important and is one key to the success of the increased production of rice plants in the paddy field. The aim of this study was to assess the water quality Irrigation Dumoga at Kabupaten Bolaang Mongondow Province Sulawesi Utara. Data collected by observation of agriculture activity and determination of sampling by using composite sampling method at canal Irrigation Dumoga. Measurement in situ pH, and temperatur. Analysis concentration total dissolved solid (TDS), total suspended solid (TSS), conductivity (DHL), nitrate and phosphate, sodium, calcium, magnesium in the Laboratory. Method data analysis are Graphic Method and to compare with standart Goverment PP. No. 82/2001 Class IV, and Sodium Absorption Ratio (SAR) Analysis. The results showed that temperatur at canal Irrigation Motabang 29,3 C, pH 7,12, value of the total dissolved solid (TDS) 127 mg/l, total suspended solid (TSS) 7 mg/l, conductivity (DHL) 182 µS/cm, nitrate 0,040 mg/l, phosphate 0,076 mg/l mg/l eligible accordance with the standard PP No. 82/2001 Kelas IV. Natrium concentration 6,38 mg/l, kalsium 0,76 mg/l, magnesium 0,27 mg/l.
THE CHARACTERISTIC OF WATER QUALITY AT BATUR LAKE, KINTAMANI DISTRIC, BALI PROVINCE I Wayan Arthana
Bumi Lestari Journal of Environment Vol 11 No 1 (2011)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

Batur Lake located at Kintamani district, Bangli regency is the biggest lake in Bali that is very important as water stocking for Bali area. Collecting samples at 50 substations was done from June up to October 2009. Temperature value at Batur Lake varied of 23 °C - 25 °C with average of 23.88 °C. The water clarity was around 1.58 - 2.90 meter with the average of 2.32 meter. The average value of water quality of BOD5 and COD were 3.817 ppm and 6.333 ppm respectively. The average content of ammonia was 0.4545 ppm and for Sulfide was 0.0009 ppm. The nutrient content in Batur Lake is that nitrate value varied of 0.0174 - 3.6070 ppm with average of 1.1498 ppm. Phosphate content was from no detection up to 0.3610 ppm with the average of 0.1242 ppm. Heavy metals, the average content of Cd, Pb, Cu and Fe were 0.0038 ppm, 0.0023 ppm, 0.0055 ppm and 0.0428 ppm respectively. There is a strong positive correlation between COD and BOD5 that the higher content of the COD the higher BOD5 content as well with correlation value of R2 = 0.927. The ratio value between COD and BOD5 (COD/ BOD5) varies of 1.061 – 12.163 with the average value of 2.492 ± 1.909.

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