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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 22 Documents
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Search results for , issue "Vol 12 No 1 (2012)" : 22 Documents clear
PERSEPSI DAN PARTISIPASI PETANI DALAM PENERAPAN USAHATANI KONSERVASI (Studi Kasus Petani Sayuran Di Hulu DAS Jeneberang) Nuraeni Nuraeni; Sugiyanto Sugiyanto; Zaenal Kusuma; Syafrial Syafrial
Bumi Lestari Journal of Environment Vol 12 No 1 (2012)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

Utilization of dry land resources most available in the upper watershed which hilly landform and heavy rainfall. This leads to erosion event and resulting decrease of land productivity. Thus, it needs application of conservation techniques to optimize the utilization of dry land in the upstream watershed. The aims of study are to identify the conservation application on the farm vegetables, to examine the perception of farmers towards conservation farming, and to assess the participation of farmers in conservation farming in the Upper Jeneberang watershed. Research sites in the upstream watershed Jeneberang, Gowa in South Sulawesi. The population is vegetable farming. The respondents did sampling randomly with number 182 farming. Data analysis methods used is descriptive analysis that is equipped with a qualitative analysis that are category and comparison analysis. The results showed the level of farmers' perceptions about the benefits of conservation has been generally high, the benefits to the prevention of erosion (61.54%), soil fertility (58.89%), availability of water (64.84%) and prevention of floods and landslides (67.58 %). The high perception of farmers on the benefits of conservation is not followed by the participation of farmers in conservation farming. This is evident from the participation in counseling following the generally very low (56.59%), participation in the application of generally low conservation (27.47%), while participation in the maintenance has been generally high (31.32%).
RESPONS PERILAKU BULU BABI Deadema setosum TERHADAP LOGAM BERAT KADMIUM Dominggus Rumahlatu
Bumi Lestari Journal of Environment Vol 12 No 1 (2012)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Deadema setosum are sea urchins which are very sensitive to heavy metal pollutants. In this research, the observation of behavioral responses namely the behavior of moving and resting Deadema setosumare conducted. They are caused by exposure of different heavy metals Cd at 4 agurium tanks for 4 weeks. Analysis of levels of heavy metals Cd that accumulates in the gonad and intestine Deadema setosum using Atomic Absorbsion Spectrofotometer (AAS). The observations shows responses of switching behavior and resting Deadema setosum that fluctuats during 4 weeks of observation. In addition, behavioral end point’s observations about the losing of spines is not observed during these 4 weeks. The content levels of Cd which accumulates in the intestine and the gonads increase from the first tank (lowest value) to the fourth tank (the highest), the result show that tanks 1 <2 <3 <4. The results of these observations indicate that the behavior of moving and resting Deadema setosum influenced by heavy metal concentrations of Cd that accumulates in the body of Deadema setosumwhich occurs through a process of absorption.
POTENSI NIRA KELAPA SEBAGAI BAHAN BAKU BIOETANOL I Made Anom Sutrisna Wijaya; I Gusti Ketut Arya Arthawan; Anis Novita Sari
Bumi Lestari Journal of Environment Vol 12 No 1 (2012)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

The objective of this reseach was to determine the frequency of destilation in production of bioethanol produced from coconut sap, as well as to determine the quality of bioethanol. Three steps were conducted in production of bioethanol : the first step was fermentation of coconut sap in room temperature for two days, the second step was destilation of fermented coconut sap (tuak) at 780C to make the alcohol content ?94%, and the last step was determination of the quality of bioethanol. The result showed that the frequency of destilation in production of bioethanol from coconut sap was 14 times with alcohol content 92,17%. The yield was 4,83%, the quality of bioethanol was ethanol content 95,13%, density 0,766 kg/ltr, specific gravity 0,786, API gravity 48,61 and heat energy 11.211,94 kkal/kg. In conclution, the bioethanol produced from coconut sap in this research met with Indonesian Standard National (SNI) of bioethanol.
RELATIONSHIP BETWEEN DRINKING WATER WITH BLOOD ARSENIC LEVEL AND SKIN LESIONS OCCURRENCE IN BUYAT VILLAGE NORTH SULAWESI INDONESIA Anwar Daud; Mukono Mukono; Veni Hadju; Anwar Anwar; Dali Amiruddin
Bumi Lestari Journal of Environment Vol 12 No 1 (2012)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

Kontaminasi Arsenik pada air tanah merupakan krisis kesehatan masyarakat di daerah Buyat, dimana penduduk yang terkontaminasi arsenik melalui air minum dari sumur gali yang digunakan untuk minum dapat menimbulkan berbagai lesi kulit. Studi kasus control dimaksudkan untuk meneliti faktor risiko air minum dengan konsentrasi arsenik dalam darah dan lesi kulit. Jumlah sampel sebanyak 54 kasus yang menderita lesi kulit dan sebanyak 54 kontrol dengan tidak ada lesi kulit. Kemudian dilakukan analisis risiko dengan menggunakan Odd Rasio (OR). Hasil menunjukkan bahwa konsentrasi arsenik dalam air minum pada sumur gali sekitar 0,01-0,104 mg/L (rata-rata 0,056 mg/L). Analisis risiko antara konsentrasi arsenik dalam air minum dengan konsentrasi arsenic dalam darah didapatkan nilai OR = 19,45 95% CI: 6,52-58,00), kemudian kadar arsenik dalam darah dengan kejadian lesi kulit (keratosis dan hiperkeratosis) didapatkan nilai OR = 15,63, CI 95%: 4,94-49,40). Penelitian Ini menyimpulkan bahwa tingginya kadar arsenik dalam air minum dan darah merupakan faktor risiko terjadinya lesi kulit pada penduduk di daerah Buyat Sulawesi Utara Indonesia.
PERSEPSI PETANI TERHADAP PENGELOLAAN DAN FUNGSI HUTAN RAKYAT DI KABUPATEN CIAMIS Budiman Achmad; Hasanu Simon; Dian Diniyati; Tri Sulistyati Widyaningsih
Bumi Lestari Journal of Environment Vol 12 No 1 (2012)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

Perception could potentially groups the farmers. It is interpreted as a communication process whereas the information transferred is influenced by time. The purpose of the research is to make the forest management more efficiently by finding out the farmer’s perception level and its distribution in Ciamis Regency on the management and the function of privately owned forest. Research was conducted between April to July 2010 at four villages i.e. Ciomas, Neglasari, Kertaharja, Kalijaya in the four districts that are Panjalu, Pamarican, Banjarsari, and Cimerak respectively, which represent the landscape of Ciamis regency. Stratified random sampling was fitted to define the samples and interview using questionnaires involved 20 respondents each village. The result showed that the farmer’s perception on management and function of the forests was very positive, and tends to form the homogenous type. Therefore, the privately owned forest management in the future is getting better and the government should respond it by actively socialize programs to the farmers, involve them in the program building, and advocate the farmers side by side to make the policy generated fit with farmers characters and rationally implemented.
EVALUASI PENERAPAN PARIWISATA BERWAWASAN LINGKUNGAN DAN BUDAYA BERDASARKAN NILAI-NILAI TRI HITA KARANA DI FIVELEMENTS (PURI AHIMSA), MAMBAL, BADUNG, BALI Ni Putu Ratna Sari; A.A.G. Raka Dalem
Bumi Lestari Journal of Environment Vol 12 No 1 (2012)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

A study on evaluation of implementation of concept of environmentally and culturally friendly tourism based on Balinese life phylosophy of the “Tri Hita Karana” (THK) has been undertaken at Fivelements (Puri Ahimsa) hotel, in Mambal, Badung Regency, Bali between September and October, 2011. Data were collected based on on site observation by reserarchers accompanied by conducting interview to management and employees and checking documents. Evaluations were undertaken refering to evaluation checklist measures of the THK Tourism Awards. Results of the evaluations were then classified into excellent, good, moderate, fair/pass and fail (affiliate). Results of the study showed that the implementation of the THK phylosophy at Fivelements were classified into excellent with overall performance score of 93.33. The score acchieved by Fivelements in general was better than those of hotels participants of the THK Awards in Bali in 2009 (86). From the three aspects, achievements of implementation of THK for community aspects (pawongan) at Fivelements was the highest among others, with the performance score of 96.67. This better that performance of cultural aspects ‘parhyangan’ with achievement score of 96.00 and environmental aspects ‘palemahan’ with achievement score of 85.56. Accross the three aspects of THK (culture, community, and environment), achievements for environmental aspects were observed to have most number of points need to be improved, that was on 50 % of its existing checklist measures. Meanwhile for the culture and community aspects, the hotel performance may still able to be improved on 13 % of its measure checklist points. On environmental aspects, the lowest score achieved was 2 out of maximum 5, ie. on checklist L.13 whcih refering to handling of hazardous materials. On culture aspects, the performance of the hotel which got the lowest score of 3 was on checklist point H.2, which was dealing with availability of shrines within the temple. On ‘pawongan’ (community) aspects, the lowest score achieved was 3 on checklist point W.16. W.16 checklist point was dealing with length of stay. Length of stay of guests in the hotel in average was between 4 and 8 days, the parameter of which was expected should be more than 12 days.
KOMUNITAS MOLUSKA DI PADANG LAMUN PANTAI WORI, SULAWESI UTARA Ucu Yanu Arbi
Bumi Lestari Journal of Environment Vol 12 No 1 (2012)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Observation on molluscs on seagrass beds ecosystem of Wori waters, North Sulawesi was conducted on April and June 2008. Seagrass beds of Wori waters has a good condition. Molluscs as one of occupier marine live in seagrass beds. The observation was aimed to get an idea on the condition of molluscs at seagrass beds ecosystem of Wori waters. It was made at 7 stations of 3 location. Molluscs samples in quadrant transect line from the edge of the beach to the sea were counted and identified. 634 individual from 163 species of molluscs was identified consist of 125 species Gastropoda and 38 species Pelecypoda. Pyrene scripta (Columbellidae) Vexillum plicarium (Costellariidae), Cypraea annulus (Cypraeidae) and Strombus urceus (Strombidae) class of Gastropoda were the common and widely distributed molluscs. Molluscs community on seagras beds of Wori waters on medium diversity. The highest diversity index (H) (1.62) was found at Station 7 and the lowest (1.303) was found at Station 4. An evenness index (J) was 0.841 to 0.969 and richness index (D) was 70.673 to 107.63.
KONSERVASI ANGGREK ALAM INDONESIA Vanda tricolor Lindl. varietas suavis MELALUI KULTUR EMBRIO SECARA IN-VITRO Rindang Dwiyani; Azis Purwantoro; Ari Indrianto; Endang Semiarti
Bumi Lestari Journal of Environment Vol 12 No 1 (2012)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Vanda tricolor Lindl. var. suavis is an Indonesian wild orchid which is now extremely rare in nature due to its habitat destruction. Development of an appropriate method for propagation of this species through in vitro culture could be nessecary for conservation purposes. High phenolic content of plant tissue is a serious problem for V. tricolor research in the laboratory, which inhibits germination and growth of the embryo. To overcome this problem, seeds were sown in a medium with the addition of tomato extract as an antioxidant. The aim of this research is to find the most suitable concentration of tomato extract for germination and growth of the embryo of V. tricolor form Bali and Merapi in order to obtained healthy seedlings for conservation purposes. Orchid pods (7 months after polination) of V. tricolor Bali and Merapi were used as plant material. The treatment consisted of 5 concentrations of tomato extract which is 0, 50 100, 150, 200, 250 g L-1. Observation was done by counting the number of protocorms for each stage of growth at 4 weeks after seed sowing. The study concluded that V. tricolor Bali is more responsive to the tomato extract compared with Merapi. Concentration of 150 gL-1 tomato extract gave the highest percentage of protocorms for Bali form, whereas Merapi form did not give significant differences either with or without tomato extract added in the culture medium.
STUDI PENDAHULUAN PEMANFAATAN LIMBAH DESALINASI UNTUK PEMBUATAN Mg/Al HYDROTALCITE-LIKE SEBAGAI ADSORBEN METHYL ORANGE Eddy Heraldy; Dian Prasasti; Karna Wijaya; Sri Juari Santosa; Triyono Triyono
Bumi Lestari Journal of Environment Vol 12 No 1 (2012)
Publisher : Environmental Research Center (PPLH) of Udayana University

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The utilization of industrial wastewater into a versatile material that has been the focus of research for economics reasons, environmental and technical. One of the proposed industrial wastewater for a new useful material is wastewater from the desalination process which is also known as brine water. The magnesium content in brine water is able to used as a source of magnesium for the synthesis of Mg/Al hydrotalcite-like compound (Mg/Al HTlc). Mg/Al HTlc are widely investigated for their potential applications in research and industrial processes as adsorbents, catalysts and /or catalyst precursors and pharmaceutical industry excipients. As adsorbents, Mg/Al HTlc are receiving greater interests in the environmental community due to their high adsorption capacity. However, before using natural brine water, has conducted a preliminary study the synthesis of Mg/Al HTlc by using artificial brine water as a model of desalination wastewater. The objective of this research is to synthesis of Mg/Al HTlc from artificial brine water and its ability tested as a methyl orange (MO) adsorbents. The research initiated with the synthesis of Mg/Al HTlc from artificial brine water. Characterization of the Mg/Al HTlc synthesized was confirmed through X-ray Diffraction and FT-IR Spectroscopy. The determination of optimum acidity, adsorption rate, and energy and capacity adsorption were studied. The result showed that pH 3 was the optimum acidity for the adsorption of MO on Mg/Al HTlc. MO was adsorbed at first order adsorption rate of 7.30 × 10-4 s-1 on the Mg/Al HTlc, the adsorption capacity and adsorption energy were 4.36 × 10-5 mol g-1 and 27.54 kJ mol-1, respectively. From the preparatory process and the synthesis of Mg/Al HTlc by using artificial brine water to provide the information that the byproduct of desalination processes (brine water) which are believed to be used for the synthesis of Mg / Al HTlc.
ANALISIS DAMPAK PEMEKARAN WILAYAH TERHADAP PENDAPATAN PER KAPITA, KEMISKINAN DAN KETIMPANGAN ANTARWILAYAH DI PROVINSI PAPUA Ida Ayu Purba Riani; M. Pudjihardjo Pudjihardjo
Bumi Lestari Journal of Environment Vol 12 No 1 (2012)
Publisher : Environmental Research Center (PPLH) of Udayana University

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The study is aimed at describing and analyzing the impact of regional extension on the economical aspect of Papua Province based on the indicators of public welfare such as per capita income, poverty, and interregional gap. By separating two time periods between before and after extension, and using average differential test, or t-test equal mean, it is estimated that regional extension policy significantly does not bring the per capita income to higher rate than before extension. In other word, statistically, there is no difference between per capita income between before and after extension. It is said that regional extension does not influence the per capita income. The strong significant indication shows that regional extension affects the decreased rate of urban poverty. It is, however, failed to reduce the rural poverty. In general, regional extension has significant effect on the reduction of poverty in Papua Province. Finally, regional extension policy is not statistically stronger, or less significant, to influence the interregional development gap in Papua Province. Based on the statistic result, it is generalized that regional extension policy in Papua Province has significant effect on the poverty reduction in Papua Province.

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