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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 20 Documents
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Search results for , issue "Vol 9 No 2 (2009)" : 20 Documents clear
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.
INTEGRASI ANTARA ASPEK LINGKUNGAN DAN EKONOMI DALAM PENGHITUNGAN PDRB HIJAU PADA SEKTOR KEHUTANAN DI KABUPATEN KARANGASEM PROVINSI BALI Made Suyana Utama
Bumi Lestari Journal of Environment Vol 9 No 2 (2009)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

In order to avoid the worst impact of development toward the natural resources and environment, it should be considered the new development paradigm that called as sustainable development. Hence, all the development indicators also should be changed, not used the PDB based on SNA (System of National Account) but used The Green PDB system of calculation, that is measured based on the integrated calculation between environmental and economic (System of Integrated Environmental and Economic Account). This research that was carried out in Karangasem Regency, aims to know the contribution of forestry sector toward The Green PDRB, using depletion factor (conflagration and illegal logging) and the environmental degradation of forest management. The research indicated that the green contribution of forestry sector to PDRB of Karangasem Regency is Rp 54,83 million, Rp 75,86 million, and negative Rp 46,64 million from the year 2004, 2005 and 2006, respectively. The negative value of green contribution in year 2006 indicated that of forestry sector as reported on the Brown PDRB Karangasem Regency is less than nature capital which sacrificed due to forest depletion and degradation.
PERLAKUAN AKTIVATOR DAN MASA INKUBASI TERHADAP PELAPUKAN LIMBAH JERAMI PADI A.A.N.G. Suwastika; Ni Wayan Sri Sutari
Bumi Lestari Journal of Environment Vol 9 No 2 (2009)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

The experiment was intended to study the effect of activator and incubation treatments of paddy straw decomposition on total-N and compost C/N ratio. The experiment was conducted in green house of Faculty of Agriculture Udayana University research station, Pegok Denpasar, from June to October 2007. The experiment was conducted in a randomized block design arranged in factorial pattern with three replications. Two factor were used which were activators (control, EM4, Super Degra, and R1M) and the second factor were incubation periods consisted of 4, 8, and 12 weeks. The result this experiment indicated there was a significant effect of interaction between activator and incubation period on total-N compost, but on C/N ratio was not significant interaction. The highest of total-N compost was found on 12 weeks incubation period with R1M activator (2.67 %), then decreased to EM4, Super Degra, and control treatments, with total-N content were 2.55 %, 2.34 %, and 2.00 %, respectively. Single effect of activator was significant to C/N ratio. The highest C/N ratio was found on control treatment (39.07) and decreased on EM4, R1M, and Super Degra treatments, with compost C/N ratio were 34.40, 33.90, and 33.62. Single effect of incubation period was significant to compost C/N ratio. The lowest C/N ratio was found on 12 weeks incubation period (14.24) and increased on 8 weeks and 4 weeks incubation period, with the C/N ratio were 30.42 and 61.07, respectively.
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.
CYCAS RUMPHII MIQ. DI SEPANJANG SUNGAI MANINGO, TAMAN WISATA ALAM CANI SIRENRENG Deden Mudiana
Bumi Lestari Journal of Environment Vol 9 No 2 (2009)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

Cycas rumphii Miq. belongs to Cycadaceae family that one of ancient species on the world. Sulawesi is one of distribution area for this species. This research aims to do inventory, habitat and distribution study of Cycas rumphii along Maningo river in Cani Sirenreng Forest Park.Collected data were diameter breast height, height of trunk, altitude, geografphic position (with GPS), and number of individu. Thirty two individuals were recorded on location. Most of them grew in shading area, clay and sandy soil, at 386-417 meter from above sea level.
KAJIAN PENYERAPAN LOGAM BERAT AIR RAKSA (Hg) DENGAN MENGGUNAKAN KARBON AKTIF BATUBARA SUB-BITUMINUS YANG DIKARBONISASI (COALITE) Solihin Solihin; Chusharini Chamid; Garlan Sugarba
Bumi Lestari Journal of Environment Vol 9 No 2 (2009)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

One of diversification usage of coal is made for carbon active. The main element in coal which is very useful for carbon active is carbon (C) as other raw materials such as bone, coffee bean, coconut shell, etc. This research used carbonized coal from PT.Bukit Asam as a media to absorb methyl mercury (CH3Hg+2) solution. The carbonized coal has iodine number of ± 386 mg/gram after it was activated at 9000C for 1 hour. It has an adsorption level of 70-80% because the SEM photograph showed a pore size of coarse fraction higher than fine fraction. The degree of saturation is influenced by the grain size of the coal carbon active where the saturation degree of coarse fraction was relatively faster than the fine fraction. Moreover, weightier and bigger debit of carbon active could adsorb higher MeHg concentration.
ADAPTASI BERBAGAI VARIETAS JAGUNG DENGAN DENSITAS BERBEDA PADA AKHIR MUSIM HUJAN DI JIMBARAN KABUPATEN BADUNG I Gusti Ayu Mas Sri Agung
Bumi Lestari Journal of Environment Vol 9 No 2 (2009)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

The experiment was conducted in the field at dryland farming areas at Cengiling village, Jimbaran, district of South Kuta, Badung (50 m asl), from 9 March until 3 June 2008. The objective of the experiment was to study the effects of plant population on grain yield, and forage production of corn varieties, plantedat the end of rainiy season. A randomized complete block design was used in this experiment, in which treatments were arranged factorially. The treatments were plant population (71,428; 142,857; 214,284 and 285,712 plants ha-1 or one, two, three and four plants hole -1), and corn varieties (BISI-2, CPI-2, Srikandi Putih and Local Bukit). All treatments were replicated three times. Results of the experiment indicated that interaction effects between plant population and variety were significant on grain yield and straw quality of corn. Variety of Local Bukit at population of 285,712 plants ha-1 resulted in the highest grain yield at 12% moisture (9.39 t ha-1), and grain oven dry weight (6.28 t ha-1). ). That variety at that population gave higher forage crude protein (7.66%) than that given by variety CPI-2 but was not significantly different from that given by BISI-2 and Srikandi P. The variety of Local Bukit at that population also resulted in lower forage crude fiber (18.16%) than the value given by the other varieties. The highest population resulted in the highest fresh and oven dry weights (22.76 dan 14.36 t ha-1) of forage. Variety of Local Bukit and BISI-2 gave higher (12.39 and 14.01 t ha-1) oven dry weights than the other varieties. In this experiment the optimum plant population for maximum grain yield and quality of forage for each corn varieties had not been obtained.
CULTURE AND BUILT ENVIRONMENT A THEORITICAL PERSPECTIVE I Made Sukadana
Bumi Lestari Journal of Environment Vol 9 No 2 (2009)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

Culture is affected by the environmental demands, and culture influences what people do toward the environment. What remarkable is that culture and environment influenced each other. They are frequently responsive to the demands of the environment. Furthermore, culture influences people in shaping built environment such as, cities, villages, houses, and farms. Culture influences environment through travelling, commerce, mass media, and missionaries of religion. Contact among other people, ideas and traditions effected cultural change. As a result; people are able to do contextualization that is reject, adopt, and accept the previous culture and it affected the built environment arrangement.
DAYA DUKUNG LINGKUNGAN DAN KESESUAIAN LAHAN DALAM PENGEMBANGAN PULAU ENGGANO BENGKULU Gunggung Senoaji
Bumi Lestari Journal of Environment Vol 9 No 2 (2009)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

This research is aimed at knowing environmental carrying capacity of Enggano Island, knowing suitability value of land for various activities. Method used is survey method explore environment. The environment carrying capacity is calculated based on comparison between natural resources owned and people need according to established standard, parameter, and indicator. Suitability of land for various needs is based on established criterion and standard. Recently, development in Enggano Island is still under its environmental carrying capacity, both form ecologic and economic aspects. Along with population growth, need of space and natural resource will increase so that it is necessary to determine threshold of environmental carrying capacity. The Enggano Island are suitable to be developed for coastal tourism, nautical tourism, catching fishery, agricultural and plantation, settlement and conservation area. The main problem in development and improvement in Enggano island is fresh water availability that is only derived from rainfall and vegetation cover. Therefore, forest existence as manager and protector of soil water management has to be absolutely exixt and appropriate with it’s location, wide and quality.
BIOAKUMULASI RESIDU CEMARAN DDT DAN KLOROTALONIL PADA IKAN KARPER DAN NILA DANAU BUYAN BULELENG BALI Ida Bagus Putra Manuaba
Bumi Lestari Journal of Environment Vol 9 No 2 (2009)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Abstract

Analysis of DDT and chlorotalonil bioaccumulation on carp and nile fish tissues at Buyan Lake were performed. The study involve two step activities, i.e. field study for gaining sampling zone and sample needed, followed by laboratory works for obtaining DDT and chlorotalonil residual bioaccumulation on fish. Sample preparation for this purposed was carried out following a standard method. Gas chromatography was employed for determining accumulation of DDT and chlorotalonil. Average bioaccumulation of DDT on carp and nile is 16.6 and 9.6 ppb, respectively, while, average chlorothalonil bioaccumulation on the same fishes is 11.9 and 13.3 ppb, respectively.

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