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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 21 Documents
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Search results for , issue "Vol 11 No 2 (2011)" : 21 Documents clear
MODEL DINAMIK PENGENDALIAN PENCEMARAN AIR KALI SURABAYA Suwari Suwari; Etty Riani; Bambang Pramudya; Ita Djuwita
Bumi Lestari Journal of Environment Vol 11 No 2 (2011)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

The Surabaya River plays an important role as water supply of the Surabaya PDAM, irrigation, industry, transportation, and means of recreation. However, domestic, industrial, and agricultural waste that were discharged into the river stream polluted the Surabaya River and decreased the carrying capacity and assimilative capacity. Therefore, effort to monitor and control the Surabaya River water pollution need to be well organized and implemented. The aim of the research is to develop a model of water pollution control on Surabaya River region. The research was carried out based on field survey, in situ and laboratory sample examination, questionnaire, and expert judgment. Pollution control model developed in this study was built into three sub-models, namely: (1) ecology sub-model, (2) social sub-model, and (3) economy sub-model using powersim constructor 2.5 version. Pollution control scenarios were developed using prospective analysis. The results of water pollution parameters such as TSS, DO, BOD, COD, N-NO2, and the level of mercury (Hg) were higher than the allowable class 1 standard. The sources of Surabaya River pollution mainly are domestic and industrial waste with total load of BOD, COD, and TSS are 55.49, 132.58, and 210.13 ton/day, respectively. According to water quality status, the Surabaya River is categorized as heavy polluted and the loading pollution need to be decreased. By using prospective analysis, there were five important factors that affect the future of the Surabaya River water pollution control, i.e.: (1) population growth and community awareness, (2) community perception, (3) implementation of regulations, (4) commitment/local government support, and (5) system and institutional capacity. There are three development scenarios, that are pessimistic, moderate and optimistic. The moderate and optimistic scenario are the realistic scenarios that occur in the future for Surabaya River water pollution control in considering of ecology, social and economy aspects.
PENGARUH STRATEGI PENYULUHAN DAN MOTIVASI PEMELIHARAAN KESEHATAN LINGKUNGAN TERHADAP PENGETAHUAN IBU RUMAH TANGGA TENTANG SAMPAH Endang Surahman; Yoni Hermawan
Bumi Lestari Journal of Environment Vol 11 No 2 (2011)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

Knowledge of garbage problem is important for a community. A study has been conducted at Singkup Village of Tasikmalaya, West Java. The objective was to find out the effects of extension strategy, and the motivation of environment healthy care on the knowledge about garbage of the housewives in the village, which has a dumping site. The design was a 2 x 2 factorial with a sample of 60 women, selected at random. The results show that the housewife’s knowledge about garbage was better by cooperative extension strategy than by the tutorial strategy. The high motivation for healthy care of environment was better by cooperative extension strategy; and for the low motivation healthy care, the tutorial extension strategy better than the cooperative way. The interaction was found between extension strategy and the healthy environment care on knowledge about garbage.
THE LEAF ANATOMY OF BALI SALAK CULTIVARS (Salacca zalacca var. Amboinensis (Becc.) Mogea) Ni Made Gari
Bumi Lestari Journal of Environment Vol 11 No 2 (2011)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

Studi anatomi dilakukan untuk mengetahui karakteristik epidermis daun pada 13 kultivar salak Bali. Hasil penelitian ini menunjukan bentuk sel pada bagian permukaan atas (adaksial) dan permukaan bawah (abaksial) daun salak Bali adalah persegi empat sampai jajaran genjang. Sedangkan dinding antiklinal sel epidermisnya berlekuk-lekuk dengan penebalan pada dinding tersebut. Semua kultivar yang diamati memperlihatkan tipe daun yang hipostomatik dimana stomata hanya dijumpai pada bagian abaksial daun. Walaupun demikian stomata terkadang dapat dijumpai pada bagian adaksial daun meski jumlahnya sangat sedikit. Tipe stomata pada daun salak bali adalah parasitik dimana tiap sel penutup didampingi oleh satu atau lebih sel tetangga yang letaknya sejajar dengan stomata, dengan penebalan pada dinding sel penutupnya. Indeks stomata bervariasi antara 11.9% sampai 18.3% pada semua kultivar yang diamati.
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.
SUSTAINABLE BIOENERGY DEVELOPMENT UNDER A CHANGING CLIMATE I Wayan Budiasa
Bumi Lestari Journal of Environment Vol 11 No 2 (2011)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

Pertanian dan perubahan iklim adalah dua hal yang saling berkaitan, diindikasikan oleh peranan nyata pertanian dalam menyumbang emisi gas rumah kaca dan pertanian merupakan salah satu sektor yang dipengaruhi oleh perubahan iklim. Emisi gas rumah kaca terutama karena penggunaan energi fosil dan peningkatan biaya bahan bakar fosil diakibatkan oleh peningkatan permintaan bahan bakar global, hal ini mendorong banyak negara berkembang mencari sumber bioenergi baru. Paper ini bertujuan untuk mendiskusikan bagaimana mengembangkan bioenergi di bawah kondisi perubahan iklim tanpa mengganggu ketahanan pangan. Analisis deskriptif terhadap data sekunder yang diperoleh dari berbagai sumber digunakan untuk mendiskusikan masalah tersebut. Bioenergi, yang diproduksi dari biomasa dapat dibakar langsung atau diproses lebih lanjut menjadi bahan bakar padat, cair atau gas. Pengembangan bioenergi dapat merevitalisasi sektor pertanian, menciptakan lapangan kerja dan menyediakan sumber pendapatan bagi kehidupan perdesaan, meningkatkan akses perdesaan terhadap energi secara kontinu, meningkatkan panen terhadap tanaman pangan dan penghasil energi, dan secara nyata berkontribusi positif terhadap pemecahan masalah iklim. Tetapi, bila tidak dikelola secara berkelanjutan, pengembangan bioenergi dapat mengancam ketahanan pangan. Mengingat peluang yang diberikan dan resiko yang ditimbulkan, maka kriteria keberlanjutan untuk industri bioenergi perlu ditetapkan dengan jelas.
KAJIAN TAMPUNGAN WADUK PEUDADA BERDASARKAN DEBIT BANJIR PERIODE ULANG T TAHUN TERHADAP PEMENUHAN KEBUTUHAN AIR MASYARAKAT DI KABUPATEN BIREUEN Wesli Wesli
Bumi Lestari Journal of Environment Vol 11 No 2 (2011)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

Krueng Peudada River is located in sub district Peudada, Bireuen District, empties into the Strait of Malacca with a area watershed (catchment) of 425.8 km2. Water discharge is contributed by Krueng Wie River and Krueng Uneuen River. Subdistrict Peudada is an area prone to flooding, therefore the government made reservoir in the Meunasah Lawang village as an attempt to utilize the excess water as water source and as a flood control. Return period flood discharge plan is calculated by empirical formula method of Gumbel Type I. The result study shows the largest flood discharge at 50-year return period 333,282 m3/sec. To cope with likely flooding the reservoir Krueng Peudada planned dam height (H) 35 m and a summit elevation of +55 m and the area of 16,534,168 m2, so the total reservoir volume Peudada reservoir 329,419,094.58 m3. Volume used for water for all needs supply taken in an effective volume that is equal to 233,236,063.20 m3. The availability of water current (existing conditions) reached 0.971 m3/det, while the water needs for all the needs of 24.557 m3/det. In general, if there is a prolonged dry season, the water needs for all conditions can not be met. When the reservoir is at conditions effective volume, the reservoir is only capable of supplying water within 110 days
SIDOARJO MUD PHENOMENON AS A PERMANENT MUD-VULCANO FOR PRELIMINARY HYPHOTHESIS Mahmud Mustain
Bumi Lestari Journal of Environment Vol 11 No 2 (2011)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Penelitian ini adalah pengembangan penelitian sebelumnya yang berjudul Interpretasi Seismik terhadap Fenomena Lumpur Sidoarjo. Penelitian tersebut mengestimasi: 1) Volume cadangan lumpur yang tersedia, 2) Potensial energi yang membangkitkan power untuk menyemburkan, 3) Potensi semburan baru di lokasi sekitar semburan utama. Pengembangan penelitian pada paper ini adalah membuat dugaan atau hepotesa awal bahwa mud volcano adalah fenomena alam biasa dan akan bersifat permanent. Dugaan ini utamanya berdasarkan analisa geologi struktur. Struktur lapisan batuan sumber lumpur adalah layered dan memiliki kemiringan yang cukup terjal, sehingga beda ketinggiannya menyebabkan adanya potensial energi gravitasi untuk menyemburkan lumpur. Apabila diasumsikan bahwa lapisan sumber lumpur terus terisi oleh air tanah akibat ilfiltrasi pada setiap musim hujan, maka semburan tidak akan berhenti. Penelitian yang sedang berjalan memberikan konfirmasi bahwa data debit semburan selama 18 bulan memberikan kecenderungan demikian, yakni pada musim hujan membesar dan menurun pada musim kemarau. Area rentan sesar (collapsed area) di atas lapisan batuan sumber lumpur juga memberikan kontribusi tentang kerentanan munculnya semburan baru. Kerangka analisa yang digunakan sebagai referensi dalam penelitian ini adalah komparasi terhadap kejadian mud volcano yang wajarnya ada di dunia.
KARAKTERISTIK IKAN HASIL TANGKAPAN ALAT TANGKAP "ILLEGAL" DI PANTAI UTARA JAWA BARAT Eko Sri Wiyono
Bumi Lestari Journal of Environment Vol 11 No 2 (2011)
Publisher : Environmental Research Center (PPLH) of Udayana University

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The objectives of this study are to analyse fish catch characteristics of arad and dogol (both are likes mini trawl), which categorized as "illegal" fishing gears. Study was conducted at northern coastal of West Java province. Results of this study showed that species number and total catch weight varied among fishing gear. Based on the species number, arad which operated in Eretan Kulon could captured highest number compare to other fishing gears. On the other hand, based on the catch weight, dogol which operated in Karangreja captured highest catch weight compare to other fishing geras. The diversity analyses of catch species showed that all of fishing gears have a diversity index > 0.1. This result indicated that all of "illegal" fishing gears categorized as low species selectivity.
IDENTIFIKASI TANAH TERCEMAR LINDI TEMPAT PEMBUANGAN AKHIR SAMPAH MUARA FAJAR DENGAN METODE GEOLISTRIK Lita Darmayanti; Muhamad Yusa; Esther RA
Bumi Lestari Journal of Environment Vol 11 No 2 (2011)
Publisher : Environmental Research Center (PPLH) of Udayana University

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The purpose of this study was to identify soil contamination by leachate from a landfill (TPA) using geoelectric method. Leachate is the liquid waste arising from the introduction of external water into the garbage heap, dissolve, and rinse the dissolved materials, including organic materials are also the result of biological decomposition process. Leachate contained heavy metals and many other organic pollutants that can contaminate soil and groundwater. Geoelectric method is one of the geophysical methods that exploit the variation of resistivity based on the measurement of potential differences caused by electrical currents injected into the earth. The study began by examining the landfill soil type, then check its resistivity with level of leachate varied, ranging 0-100%, in the laboratory. Furthermore, resistivity measurements in the field to determine the spread of leachate. In addition, examination of pollutant content in the leachate was done. The result showed the soil type of landfill was high plasticity clay (CH). Resistivity value of soil with varies level of leachate was 13.5 to 30 Ωm. On the field, it found value of resistivity soil ranged from 13.5 to 30 Ωm has spread along the 37 m to the east with an average depth of 0 to 1.60 m and 29 m to the south with an average depth of 0 to 1.85 m.
PENGEMBANGAN KOMIK FABEL UNTUK MEDIA KOMUNIKASI DAN SUPLEMEN PENDIDIKAN LINGKUNGAN DALAM RANGKA KAMPANYE PELESTARIAN KEANEKARAGAMAN HAYATI DI KAWASAN PENYANGGA TAMAN NASIONAL WAY KAMBAS-LAMPUNG Ida Nurhaida; Agus Setiawan; Samsul Bakri; Gede A.B. Wiranata; Pairul Syah
Bumi Lestari Journal of Environment Vol 11 No 2 (2011)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

The severity of human-wildlife conflict in buffer zone of The Way Kambas National Park (WKNP) Lampung Indonesia is a symptom of the biodiversity deterioration undergoing in the region. The absentia of local knowledge, lack of migrant’s knowledge about the intangible relation between land productivity degradation and biodiversity loss, the stagnation of ecological knowledge cascading to their migrant’s off spring are the special challenge both for communication development planners and educators to design communication medium or teaching material so that the cascading process works well. This research was objected to develop fable as communication medium or teaching material for elementary school especially for the local issues compatibility. This research consisted of field work and laboratory exercises from April to September 2008. The fieldwork was conducted in three villages in buffer zone of the District of East Lampung i.e: Brajayekti, Braja Luhur, and Braja Asri villages as the representation of Balinese, Javanese, and Sundanese respectively. The laboratory activities were conducted at the Lab of Photography and Lab of Multimedia of the University of Lampung. The essential messages contents were extracted from the previous research results (Nurhaida et al., 2007a and 2008a). The development of story setting, story boarding, graphical sketching, lettering, typographic and lay outing for the fable design were conducted by brain storming and discussion among us, the researchers. Whereas for graphical drawing was ordered to a professional painter. The graphical symbols were reproduced by digital camera then manipulated using computer software of Adobe Photoshop. Very firstly, Bahasa Indonesia was applied as the language then we translated to Balinese, Javanese and Sundanese languages. Draft of a-40 page of comic fable was printed on glossy white papers of A5 dimension. The media pre testing conducted by following Bertrand (1978 as adopted by Nurhaida, 2001 and 2007a) to measure the fabels’ effectiveess (their attraction, their self-involvement, their acceptability and their comprehension) for the elementary students. The results showed that the media reliability in conveying those messages were 78.4%; 78.7%; 79.0% and 79.9% for edition of the Bahasa Indonesia, the Javanese, the Sundanese, and the Balinese respectively. Because the readability of the student was in low continum i.e. 61.5 [Sd=13.8] words per minute, the media were considered as reliable for conveying the messages. It is strongly recommend that use media for extension program and teaching material for the aim at promoting biodiversity in NPWK bufferzone. Adapting the media for applying in the 23 other deteriorated Indonesian national parks’ bufferzone is strongly recommended as well.

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