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Journal : Bumi Lestari

STUDI PERUBAHAN PENGGUNAAN LAHAN DI DAS BADUNG A.R. As-syakur; I.W. Suarna; I.W. Sandi Adnyana; I.W. Rusna; I.A. Alit Laksmiwati; I.W. Diara
Bumi Lestari Journal of Environment Vol 10 No 2 (2010)
Publisher : Environmental Research Center (PPLH) of Udayana University

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Land use change in a watershed could affect the ecological system, hydrological system and water quality, meanwhile land use change study is needed to conduct especially in Badung watershed. The purpose of this research is to calculate land use changes from 1992 to 2008 and predicted hectarege of land use in 2015 and 2020. Methods of this research are comparing the four land use maps obtained from Bakosurtanal (1992 and 2000), Interpretation of Landsat ETM+ image (2003), and interpretation of ALOS/AVNIR-2 image (2008). On-screen method is used to ALOS/AVNIR-2 image data interpretation. The equation obtained from logarithmic regression is used to predict the land use area. The results of this research showed that the land use in Badung Watershed region has changes from 1992 to 2008. Settlement land use has the largest changes, where the area is increase. The speed of land use change of settlement reached 46,45 ha per year, while the ricefield land use reached 38,91 ha per year. Predicted settlement area in 2015 and 2020 is 2056,83 ha and 2108,83 ha, while the ricefield is 1386,79 ha and 1343,66 ha.
DAMPAK PERTUMBUHAN PENDUDUK TERHADAP LINGKUNGAN DAN BUDAYA SUBAK : STUDI KASUS DI KABUPATEN TABANAN PROVINSI BALI I Nyoman Wardi; I.A Alit Laksmiwati; I Gusti Alit Gunadi; Abd Rahman As-syakur
Bumi Lestari Journal of Environment Vol 14 No 2 (2014)
Publisher : Environmental Research Center (PPLH) of Udayana University

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The research aims to reveal the trens population growth over the 10 years (2002-2012) inTabanan Regency, as well as their impact on the land conversion of subak as well as otherchanges in environmental and cultural aspects of subak. Research conducted through thestages of data collection and data analysis. The technique of data collection was done bythe library research, observation, and structured interviews with questionnaires and indepthinterviews (depth interview).The data collected was analyzed by descriptivequalitativeand quantitative analysis with the help of cross-tables and analysis of satelliteimagery.Resultsof the study showed, the number of inhabitants of TabananRegency in 2012 reached441.900people, consisting of 220. 002-sex guy men and 221.898 women. The livelihoods ofinhabitants,mostly working in the agricultural sector (110.449people) and plantations(45,326people). Based on analysis conducted, it was revealed that within the last 10 years(2002-2012)population growthreached26,10% or = 2.61% per year.The highest growthoccurredin the district of Kediri 5,76%, then followed by district of  Baturiti 5.13%, Marga4.05%,and district of  Tabanan,3,69%. The lowest population growthoccurredin districtPenebel0.34%, then followed by the district of Kerambitan 0,56% and district of EastSelemadeg0.82%. The population growth seems to be more of a factor caused by migration(peoplecoming) 62,24% (1294 inhabitants) (from the difference in population that comes3293with people out 1999 inhabitants), if compared with population growth naturallyonlyachieve 37,76% (785 inhabitants).Thepopulation growth indirectly affects the occurrence of changes in the environment andcultureof subak. In the past 10 years occurred the shrinking land subak (fields) 672,89 ha,or2.95% of the total area of paddy fields in 2002 (22.842 fare ha). Other environmentaleffects,i.e. reduced water supply and the breakdown in some irrigation farmers, pollutionandthe impact of irrigation channel blockage by garbage plastic and aesthetic degradationofthe environment. Socio-cultural impact of subak, which tendency to the occurrence ofsocialconflict, disruption in the silent  ritual of rice fields (penyepian carik) and theabandonment of cultural heritage (pura subak) due to the occurrence of function fields intohousing and tourism facilities.The protection needs to be done to the environment and subak culture through the populationgrowth control with government policy, the formulation of customary law of subak (awigawig),and improve the welfare of farmers through the development of ecotourism that basedonsubak ecosystem.
Mata Air sebagai Kawasan Suci (Sebuah Kearifan Lokal dalam Pelestarian Sumber Daya Alam) Ida Ayu Alit Laksmiwati
Bumi Lestari Journal of Environment Vol 4 No 1
Publisher : Environmental Research Center (PPLH) of Udayana University

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Kearifan lokal merupakan kebijakan manusia dan komunitas dengan bersandar padafilosofi, nilai-nilai, etika, cara, dan perilaku yang melembaga secara tradisional untukmengelola sumber daya alam, sumber daya manusia dan sumber dayabudaya secaraberkelanjutan. Salah satu kearifan lokal dalam masyarakat Bali adalah adanya persepsitentang kawasan-kawasan suci. Dalam masyarakat Bali terdapat berbagai perangkatkepercayaan tradisional yang merupakan bagian yang terintegrasi dari sistem kepercayaanAgama Hindu yang terbukti memberikan nilai positif bagi kelestarian dan pelestarianlingkungan.Berdasarkan pandangan Hindu sumber-sumber air atau tempat yang banyak menampungair dianggap sebagai salah satu tempat suci. Air yang murni (suci) baik dari kelembutan (mataair), danau, campuhan (pertemuan dua buah sungai atau anak sungai) loloan (pertemuansungai dengan laut) mempunyai kekuatan yang menyucikan.Air merupakan salah satu unsur penting dalam upacara keagamaan Hindu. Untukmembuat tirta, air biasanya diambil dari mata air tertentu. Pada saat-saat tertentu (misalnyaHari Raya Nyepi) masyarakat Hindu melakukan upacara melasti ke sumber-sumber air,seperti danau, campuhan, atau ke laut.Air sungai atau mata air dalam fungsinya sebagai tirta, dalam prosesi upacara dipakaiuntuk memerciki bagian kepala, tubuh, dan kemudian diminum. Karena itu, air sungai ataumata air harus tetap bersih dan tidak tercemar. Karena fungsinya tersebut masyarakat selaluberusaha untuk menjaga agar kondisi atau kualitas air tetap terjaga. Jadi secara sadar atau puntidak mereka telah melakukan penjagaan dan konservasi terhadap lingkungan mata air.Bagi krama subak air sangat bermakna dalam kehidupan mereka . Secara teknis airmerupakan sumber daya yang sangat penting bagi mereka agar dapat melaksanakan aktivitaskehidupan bertani. Secara religius mata air diyakini sebagai sumber kesejahteraan mereka.Hal ini dapat dilihat melalui aktivitas-aktivitas keagamaan yang dilakukan petani selaluberorientasi pada pura-pura yang terletak pada sumber-sumber air utama, yaitu Pura UlunSuwi dan Pura Ulun Danu.