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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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PERBANDINGAN KEANEKARAGAMAN DAN PREDOMINANSI FAUNA TANAH DALAM PROSES PENGOMPOSAN SAMPAH ORGANIK Fitrahtunnisa Fitrahtunnisa
Bumi Lestari Journal of Environment Vol 13 No 2 (2013)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

AbstractActually, the problem of garbage can be solved by a good management, for exampledecomposition. Decomposition occure as a result of soil fauna activities. This research wasaimed to analyse comparation the diversity and predominance of soil fauna in thedecomposition all kinds of organic garbage. It was designed as an experimental study withgarbage variation were : the agriculture garbage, the cattle faeces, the city garbage, mixtureof agriculture garbage and faeces of cattle, mixture of agriculture and city garbages, mixtureof cattle faeces and city garbage, and mixture of three kinds of garbage. The soil faunaswere collected with Pitfall-traps and soil cores. The diversity indeks (H’) of soil fauna wasanalized by Shannon-Wienner indeks, while the predominance of soil fauna was countedbased on the base of its relative abundance (RA). The highest diversity indeks of soil faunawas found at PTK, H’=3,01, while the lowest was found at P, H’=1,60. The kinds ofpredominant soil fauna were Hypogastrura armata (RA=71%), Carohodes marginatus(RA=54%), Cllohmannia gigatea (RA=30,3%), Phidole sithyesi (RA=19,1%), Suctobelbaobtusa (RA=13,9%), Polyrhachis hauxwelli (RA=9,27), Lepidocyrtus pictus (RA=8,85%),Tetranychus canadensis (RA=7,07%), Narceus americanus (RA=7%), Entomobrya cingula(RA=6,82%), Lasius fuliginosus (RA=5,14%), and Isotomurus tricolor (RA=5,03%).
Model Penataan Lahan Penanggulangan Erosi Berbasis Masyarakat Di Kawasan Danau Batur I Made Nada; I Wayan Redana; I G B Sila Dharma; A A Gde Agung Yana
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.p01

Abstract

Erosion control in the community-based Lake Batur area is directed to maintain the balance of Lake Batur. Erosion triggered by the pattern of management of agricultural lands less attention to aspects of soil and water conservation. The purpose of this research is; (1) to obtain a community-based erosion control model, (2) Land management Mapping on the edge of the lake, (3) erosion control strategy at the edge of the lake. This research field experiment and surpei, sampling is done by purposive sampling with amount of 64 sample. The socio-economic support data of the community was determined by 180 respondents in cluster sampling. Interviews and questionnaires are closed questions on a conventional scale. The characteristics of the lake were analyzed descriptive statistics using the SPSS tool. Land mapping is done by GPS method with GIS device. Predict erosion using the Universal Soil Loss Equation (USLE) Model, for sedimentation using the Stanford Sediment model. The analysis of the rate due to erosion, done by non linear regression analysis. The analysis shows that the settlement has an average of 115,85%, plantation 245,50% and sedimentation level 1,017,93 m3 / year. Sedimentation was tested on both sides with a 95% confidence level on the modeled sediment data. Conclusions to tackle erosion using a community-based Terracing Mekar land arrangement model that collaborates with elephant grass and vetiveria.
KONDISI KOMUNITAS TERUMBU KARANG DI PANTAI BIAS PUTIH DESA BUGBUG KECAMATAN KARANGASEM KABUPATEN KARANGASEM BALI I Wayan Restu
Bumi Lestari Journal of Environment Vol 11 No 1 (2011)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

The extent of coral reefs in Bali province is 7200 ha. It spreads out in almost all districts, except Bangli. The condition status of coral reefs has been greatly reduced recently due to rampant fish bombing activities, making sea rocks, seaweed cultivation and the rapid growth of tourism. The conditions status of coral reefs in Bali (2010) are as follows: excellent (3.8%), good (35.8%), moderate (39.6%) and bad (20.8%). Research on the condition status of coral reefs in Bias Putih Beach of Bugbug Village, Karangasem District, Karangasem Regency, Bali is intended to provide basic data about the condition status of coral reefs that can be used as a consideration on its management. Manta Tow Survey and Line Intercept Transect were implemented as methods on this research. The results showed the condition status of coral reefs was between moderate to good with the description as follows: manta tow results showed that living coral cover were categorized between 2 and 3, with the percentage of cover between 11-50 %, while soft corals were categorized between 1 and 3, and the results of Line Intercept transect were categorized into showing up very well with the percentage of living coral coverage ranged between 66.34% and 87.36%. Species diversity of coral was observed to be high with H values ranging between 3,133934 and 3,167543 and its equitability values was observed to be high ranged between 0,94340 and 0,9535. Thus, it is concluded that the condition status of coral reefs in Bias Putih Beach, of Bugbug Village, Karangasem, Bali to be categorized into good or very good.
SEMBUNG DELAN (Sphaerantus indicus L.) TERHADAP Pseudomonas solanacearum L. PENYEBAB PENYAKIT LAYU PADA TANAMAN TOMAT Ida Bagus Gede Darmayasa
Bumi Lestari Journal of Environment Vol 6 No 1
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

A research entitled “Inhibitid activity of plant fractination extract of Sembung Delan(Sphaeranthus indicus L.) to the causal agent of bacterial wilt on tomato” was carried out to find outthe active fraction of plant extract that responsible for bactericidal activity againt P. solanacearum L.,Results of this study showed that the crude extract of S. indicus inhibited the growth of P.solanacearum L. on PDA. It was indicated by the formation of inhibition zone around the disc loadedwith plant extract at concentration of 0 ppm, 10,000 ppm, 20,000 ppm, 30,000 ppm, 40,000 ppm, and50,000 ppm. From 17 fractions obtained from fractionation, fraction No. XV (eluted with ethylacetate 100%) contains three compunds with Rf value: 0.03; 0.23; 0.35 and fraction No. XVI (elutedwith ethyl acetate 100%) contains four compunds with Rf value: 0.03; 0.14; 0.17; 0.21, effectivityinhibited the growth of P. solanacearum L
PENGARUH LETAK SARANG DAN KERAPATAN TELUR TERHADAP LAJU TETAS TELUR PENYU HIJAU (Chelonia mydas) I Ketut Sukada
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 conducted in Tanjung Benoa Village, Subdistrict of Southern Kuta, Badung Regency, Bali between February 7, and April 12, 2006. The aim of this research was to observe the length of hatchery of eggs of green turtles (Chelonia mydas) in two places. Those places were: (1) which was freely exposured to the sunlight and (2) which was not freely exposed. These two places were set up to be closely to the natural (semi natural) nesting sites where eggs eggs being put underground in different densities. Factorial Randomise Block Design was applied in this research. The first factor was the density of eggs that was 40, 50, and 60 eggs in each hole and the second factor was the location of nest, whether was or was not freely exposed to the sun light. There were 4 replicates made, so the total eggs of C. mydas utilised in this research was 1200. Result of this research indicated that the hatching rates from various mean at calm place was better than those of the other place (did not calm) – higher hatching rates 4.34% (P<0,01), shorter hatching time (day) 2.5 (P<0,01) and hatchlings were bigger in size 0.14% ( P<0,01). The density of eggs of 50 for every nest was found to be significantly better (P<0,01) compared to those of the density of 40 and 60. Temperatures in calm place and that was not calm in the morning, during the mid day and in evening were 18.1600 C, 21.660C, 19.750C and 19.660C, 30.750C, 27.330C respectively.
TEKNIK KONSERVASI TANAH LAHAN KERING UNTUK MENGATASI DEGRADASI LAHAN PADA DESA MOJOREJO, LAMONGAN Deddy Erfandi
Bumi Lestari Journal of Environment Vol 13 No 1 (2013)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

AbstractSoil conservation is one important aspect in supporting food security program. It is necessary tocreate an area that has a sustainable environment. Mojorejo Village, District Modo, Lamongan,East Java, has an area of ± 1,406 ha. Most of the area is dry land agro-ecosystem includingupland lowland dry climate. Topography is undulating to hilly with deep and rocky limestonesolum. In creating a sustainable environment, research has been conducted in the village onsystem conditions of dryland soil conservation techniques to address land degradation. Thestudy aims to look at the soil conservation and soil conservation technologies recommended insitu, in order to address land degradation. Observations suitability for some commodities showthat land can be developed for agricultural commodities in the village square Mojorejo 878.02ha (92.56%), while the remaining area of 70.54 ha (7.22 %) could not be developed foragriculture because of the form settlement and land biophysical conditions do not allow. Thereis a potential source of water to irrigate rice fields allowed. On mixed farms that have slopes of8-15%, the maximum proportion of annual crops is 50 % with a permanent stone terracing,while mixed farms on the slopes of 15-25%, the maximum proportion of annual crops is 30% witha permanent stone bench terraces.
DISTRIBUSI SPASIO -TEMPORAL NITROGEN DI DAERAH TANGKAPAN AIR DANAU TONDANO PROVINSI SULAWESI UTARA Sofia Wantasen; Joudie N. Luntungan
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.p03

Abstract

The spatio temporal distribution of nitrogen in catchment area of   Lake Tondano wasimportant to investigate because agricultural residue comes from the catchment potentiallydecreased water quality in Lake Tondano. The purpose of this study was to examine thedistribution of nitrogen spatially and temporally in the catchment area of Lake Tondano.The study was conducted in the field and laboratory. Water quality sampling conducted byusing composite sampling on the rivers, lake Tondano and outlet of irrigation channels.The data collected was the total nitrogen, nitrate, ammonia in 2001, 2008 and 2014. Datawere analyzed using Graph Method and Spatial Analysis.        The results showed that the distribution of total nitrogen that has a high concentrationfound in the outlet streams and irrigation canals outlet. High nitrate accumulates in theoutlet of Lake Tondano. Nitrate concentration can be divided into 9 (nine) classes, namelyconcentration of 0.100 to 0.211 mg / l; 0.211 to 0.322 mg / l;  0.322 to 0.433 mg / l;  0.433 to0.544 mg / l; From 0.544 to 0.655 mg / l; From 0.655 to 0.766 mg / l; 0.766 to 0.877 mg / l;0.877 to 0.988 mg / l; and 0,988- 1,100 mg / l. Ammonia, spatially spread evenly on thesurface of Lake Tondano. Ammonia concentration can be divided into 9 (nine) class is aclass that has a concentration of 0.000 to 0.064 mg / l; From 0.064 to 0.129 mg / l; 0.129 to0.193 mg / l; From 0.193 to 0.258 mg / l; 0.258 to 0.322 mg / l; 0.322 to 0.387 mg / l; From0.387 to 0.451 mg / l; 0.451 to 0.516 mg / l; and from 0.516 to 0.580 mg / l. Concentrationsof nitrate and ammonia fluctuated from year to year of observation. This was influenced byfertilization in rice fields.
KONDISI DAN STRATEGIS PENGELOLAAN KOMUNITAS PADANG LAMUN DI WILAYAH PESISIR KOTA DENPASAR, PROVINSI BALI I Ketut Sudiarta; I Wayan Restu
Bumi Lestari Journal of Environment Vol 11 No 2 (2011)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

A study on condition and management strategy for sea grass community was undertaken on the beach area of Denpasar City, Bali Province between March and June, 2010. The study was undertaken on two locations: Sanur and Serangan beaches. Aim of the study was to find out recent condition, problems related to sea grass and set up its management strategy. The study was utilising Transect Plot methods. Six sampling stations was determined. Identification of condition and degradation of sea grass community was undertaken by retrospective approaches. Data analyses was undertaken by utilising kualitative and kuantitative approaches; refering to determination of “Kriteria Baku Kerusakan dan Pedoman Penentuan Status Padang Lamun” (the standard criteria for damage and manual for determination of the status of sea grass) refering to Decission of State Minister on Environment Number 200 year 2004 and cualitative ecology index and analogist comparative approach on formulating management strategy. Species richness of sea grass on beaches of Denpasar city was 10 out of 12 of those existed in Indonesia, namely: Zostera sp., Halodule pinifolia, Halodule uninervis, Cymodocea rotundata, Cymodocea serrulata, Syringodium isoetifolium, Thalassodendron ciliatum, Enhalus acoroides, Halophila ovalis and Thalassia hemprichii. Species density of sea grass varied across locations and observation stations, ie. Sanur beach (209 individual/sq.m) and Serangan Island (276 ind/sq.m); with the higest density made by Cymodocea rotundata. Persentage of sea grass cover on the beach of Denpasar was between 28.79% – 42.74%, with the highest at Serangan-III and the lowest at Sanur-I. Based on the cover, the status of condition of sea grass on the beach area of Denpasar was classified into the category of bad/poor -moderate/less healthy. The average score of level of damage of sea grass on the beach area of Denpasar varied between 8.89 % – 15.79 %, which was within the category of low level of damage, where the highest level of damage was at Station I of “Perairan Serangan” and the lowest at Serangan II-III, where there were no damage reported to occur. The change in domination of sea grass in Sanur and Serangan from Enhalus acoroides into Cymodocea rotundata and Thalassia hemprichii was observed because the change in the texture of substrate after reclamation of the beach and sedimentation. Human activities which caused damage of sea grass on Sanur and Serangan beaches such as anchoring the fisherman’s canoes, propeler boats, crib constructions, break water and beach reclamations. For keeping the sea grass ecosystem of Denpasar sustainable, it is recommended for a better management of beaches/sea on the area where sea grass grows and implementing strategy of integrated management of sea grass with integrated coastal and sea management.
LANDING CHARACTERISTICS OF FISHING GEARS IN SMALL-SCALE TROPICAL COASTAL FISHERIES OF PELABUHANRATU BAY, WEST JAVA AND ITS APPLICATION FOR GEAR MANAGEMENT Eko Sri Wiyono
Bumi Lestari Journal of Environment Vol 12 No 2 (2012)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

Dalam rangka pengelolaan alat tangkap berbasis ekologi, beberapa indikator komunitas ikan diusulkan untuk mengkarakterisasi alat tangkap yang digunakan pada perikanan skala kecil di Teluk Pelabuhanratu. Lima alat tangkap dikaji berdasarkan data deret waktu hasil tangkapan  bulanan alat tangkap komersial. Hasil analisis menunjukkan bahwa berbagai metode yang digunakan menunujukkan hasil yang saling menunjang. Indeks musim penangkapan, produktivitas dan keragaman indeks ikan yang didaratkan berfluktuasi secara musiman dan mencapai nilai tinggi di musim kemarau. Bagan dan jaring insang, yang tergolong alat tangkap pasif, cenderung memiliki kemiripan karakteristik sepanjang tahun. Kedua alat tangkap yang dikategorikan sebagai alat tangkap multi-target, memiliki periode musim penangkapan yang pendek di musim kemarau dan memiliki tingkat kesamaan hasil tangkapan yang tinggi  sepanjang tahun. Alat tangkap pasif lainnya, pancing ulur dan jaring insang tetap, yang dikategorikan sebagai alat tangkap dengan target tunggal, juga menunjukkan karakteristik serupa. Sebaliknya, payang yang dioperasikan secara aktif dan dikategorikan sebagai alat tangkap dengan multi-target, menunjukkan karakteristik yang berbeda dengan alat tangkap lainnya. Berdasarkan fakta tersebut dapat dismpulkan bahwa dinamika kelimpahan ikan bersama-sama dengan kondisi oseanografi, kapasitas perikanan dan kemungkinan adanya interaksi antar alat tangkap telah menyebabkan keberadaan spesies ikan target berubah dinamis secara musiman. Hasil lain dari penelitian ini juga menunjukkan bahwa untuk mencapai perikanan yang berkelanjutan di Teluk Pelabuhanratu, perlu adanya pengurangan penggunaan bagan.
PERAN HUKUM ADAT DALAM PELESTARIAN LINGKUNGAN HIDUP DAERAH I Nyoman Sirtha
Bumi Lestari Journal of Environment Vol 3 No 2
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

A traditional law (Adat Law) is one element on construction The Unwritten NationalLaw of Indonesia. On sustainable development which deals with environmental dimention inthe regional frame and in line with the spirit of regional otonomy which implys exploitate(utilize) the natural resources and biological potencies includes norms which is still practiseby the society for the human’s wealth and other creatures.Therefore, Adat Law which is till existing among the societies can play an importantrole to regulate and to constrain the human behaviors in term of environmental conservationin order to realize the harmonious and equal life

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