Abd. Rahman As-syakur
Faculty of Marine Science and Fisheries, Udayana University, Bukit Jimbaran, Bali

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PEMETAAN KESESUAIAN IKLIM TANAMAN PAKAN SERTA KERENTANANNYA TERHADAP PERUBAHAN IKLIM DENGAN SISTEM INFORMASI GEOGRAFI (SIG) DI PROVINSI BALI As-syakur, Abd. Rahman; Suarna, I Wayan; Rusna, I Wayan; Dibia, I Nyoman
Pastura : Jurnal Ilmu Tumbuhan Pakan Ternak Vol 1 No 1
Publisher : Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (493.743 KB) | DOI: 10.24843/Pastura.2011.v01.i01.p03

Abstract

Forage is one of the supporting factors in planning animal production. Climate condition is one factor which influence forage production. This research attempted to map the class suitability of climate for seven forage species in Bali province and to analysis the level of vulnerability toward climate changes by using Geography Information System (GIS). The results showed that four from seven species observed have class suitability with climate S1. Rain climate factor was the important factor which was influence the climate unsuitability of forage in Bali province. The effect of climate change, such as La Nina 1998 caused positive and negative impacts towards the distribution of class suitability of climate at that year. The incident of La Nina caused the reduction of area of class suitability of S1, S2, and N climate, meanwhile increase the area of class suitability of S3 climate. On the other hand, some location of climate suitability class also changed due to climate change.
THE IMPACT OF CLIMATE CHANGE ON THE AGRICULTURAL SECTOR IN BALI PROVINCE Sudarma, I Made; As-syakur, Abd. Rahman
SOCA: Jurnal Sosial Ekonomi Pertanian Vol.12, No.1, 2018
Publisher : Program Studi Agribisnis, Fakultas Pertanian, Universitas Udayana Jalan PB.Sudirman Denpasar, Bali, Indonesia. Telp: (0361) 223544 Email: soca@unud.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (262.602 KB) | DOI: 10.24843/SOCA.2018.v12.i01.p07

Abstract

Climate change is an unavoidable thing due to global warming which has a wide impact on various aspect of life. Changes of rainfall patterns, increas of the frequency of extreme climate and an increase in air and sea levels are serious impacts of climate change that will affect the agricultural sector. For Indonesia, the threat of climate change will have a serious impact on achieving sustainable developmenttargets. For the Bali Province, climate change causes disruption of water supply for various sectors, including agriculture sector. This is indicated by the decrease of land area that was very suitable for paddy rice untill 20% as long in the period 1990-2009. Due to changes in rainfall by climate change, the current cropping pattern of rice must also be adjusted. In an effort to address climate change, can be done through the plant of low emission varieties, use of organic fertilizers, adjusting cultivation techniques through water and land management and socializing the importance of agricultural insurance for  educing farmers' risk due to climate change.
PERUBAHAN PENGGUNAAN LAHAN DI PROVINSI BALI As-SYAKUR, Abd. RAHMAN
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 6 No 1 (2011)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

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Abstract

Research on land use change is very important to do in this time, because the land use change has an impacton physical and social environment. The purpose of this research is to determine the land use change in Baliprovince using satellite imagery data and GIS. Methods of this research are comparing the two data distribution ofland use in 2003 and 2008 obtained from interpretation of Landsat ETM+ (JICA, 2005) andALOS/ AVNIR-2.On-screen method is used to ALOS/ AVNIR-2 image data interpretation. Land use has changed between 2003and 2008. Settlements and irrigated ricefield is the most extensive land use changes, that are 2.553 ha and 2.553ha. W hereas the salting land use has not changed. Spatial representation shows in the south and central partof Bali Province is the region that have most experienced changes. Denpasar city and Badung Regency is twoadministrative regions which have most extensive experience in land use change.
INTEGRASI TEKNOLOGI PENGIDERAAN JAUH DAN SISTEM INFORMASI GEOGRAFIS UNTUK ESTIMASI SERAPAN DAN EMISI CO2 DI KOTA DENPASAR Nuarsa, I Wayan; As-syakur, Abd. Rahman; Gunadi, I Gusti Alit; Sukewijaya, I Made
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 12 No 2 (2018)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1104.811 KB) | DOI: 10.24843/EJES.2018.v12.i02.p12

Abstract

Integration of Remote Sensing Technology And Geographic Information Systems for Estimation of CO2 Updake and Emissions in Denpasar City Rapid economic growth in the Denpasar City has an impact on the rate of population growth. This will lead to increasing land requirements for settlements, infrastructure, and other supporting facilities. Meanwhile, the availability of land for green open space (RTH) will decrease. Several studies show that from year to year the area of ??vegetation cover decreases, and the air temperature in Denpasar City is increasing. Therefore, research to calculate CO2 uptake by urban plants and CO2 emissions from various activities in the city of Denpasar is needed to be done. Estimates of CO2 uptake by plants are carried out using remote sensing technology and GIS. Meanwhile, the calculation of CO2 emissions is carried out by an inventory of CO2 pollutant sources from point sources, areas sources, and mobile sources. The output of this study is a distribution map of CO2 absorption and emissions. From the map it can be seen whether the CO2 emissions of Denpasar City are higher than the ability of existing plants to absorb them. The results showed that the ability of plants in Denpasar as a green open space to absorb CO2 was 235,780.63 tCO2/year, while total emissions from pollutant sources were 862,955,856 tCO2/year. The sources of CO2 emissions include from point source 37,649 tons/year, from source area 95,310 tons/year, and from mobile sources at 862,955,856 tons/year. From the movable source the biggest contributor to CO2 emissions is light vehicles, which amounted to 540,355.88 tons/year (62.63%), then followed by motorcycles at 260,187.43 tons/year (30.16%). The amount of CO2 emissions in Denpasar City is 3.66 times greater than the ability of plants to absorb CO2 in 2015 and there is a tendency for this gap to be even greater in the future. To overcome this problem, regulations are needed such as reducing the number of motorized vehicles by increasing public transportation services. The use of vehicles using energy sources other than fuel such as electricity is another alternative to consider. Finally, the increase in the number and quality of green open spaces is a conventional method that needs to be done.
VARIASI MUSIMAN HUBUNGAN ANTARA PARAMETER OCEANOGRAFI DENGAN HASIL TANGKAPAN IKAN TONGKOL BERDASARKAN DATA HARIAN DI SELAT BALI Sastra, I Gusti Agung Bagus Wisesa; Karang, I Wayan Gede Astawa; As-syakur, Abd. Rahman; Suteja, Yulianto
Journal of Marine and Aquatic Sciences Vol 4 No 1 (2018)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (800.638 KB) | DOI: 10.24843/jmas.2018.v4.i01.109-119

Abstract

Mackerel fish that classified pelagic fish and an export commodity in Indonesia. Distribution of mackerel fish are foundn all Indonesian waters, one of them in the Bali Strait. Distribution of mackerel fish influenced by oceanographic condition such as sea surface temperature (SST) and chlorophyll-a concentration. SST and chlorophyll-a concentrations are environmental parameters that can provide information on fishing ground. The purpose of this research is explained the temporal fluctuation and relationship between SST and chlorophyll-a concentration with mackerel fish had been catch in Bali Strait waters during 2011-2016. Data were analyzed using simple correlation analysis with 95% confidence interval. Temporally, the highest average SST occurred during the transition season I (March-May) and the lowest in the east season (June-August). The highest average chlorophyll-a concentration occurs in the east season and the lowest in the west season (December-February). The highest catch of mackerel fish occurred during transitional season II (September-November) and lowest in west season. The association between SST and chlorophyll-a concentration on mackerel fish catch showed low correlation with significant relationship, whereas concentration between SST and chlorophyll-a concentration strong with significant correlation
PENGARUH HASIL TANGKAPAN IKAN TONGKOL (EUTHYNNUS SP) DAN PENDAPATAN KELUARGA NELAYAN TERHADAP TINGKAT PENDIDIKAN ANAK KELUARGA NELAYAN DI DESA SERAYA TIMUR, KECAMATAN KARANGASEM, KABUPATEN KARANGASEM Apriantari, Ni Kadek; Dirgayusa, I Gusti Ngurah Putra; As-syakur, Abd. Rahman
Journal of Marine and Aquatic Sciences Vol 3 No 2 (2017)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (550.174 KB) | DOI: 10.24843/jmas.2017.v3.i02.242-250

Abstract

The East Seraya village has a potential of marines and fisheries, such as pelagic fish especially mackerel tuna fish according, production of tuna fish catch of 81% with the of catches 20.278,10 ton/year. Research on the effect of catch fish and income of fisherman family on education level of children of fisherman family have been done at Seraya village. Data were collected in each group of fishermen from January to February 2017. The sample was taken using simple random method, with 89 respondents. Methods for the analysis of the effect of tuna catch and family income of fishermen on education level of children of fishermen family using multinomial logistic regression analysis with software SPSS (Statistical Package for Social Science. The educational level of the fishermen family has been completed at the level of fishermen children as follows; 2,2% for elementary school 14,6 % for junior high school, 33,7% for senior high school, 31,5 % for diploma, and 18,0%. Coefficient of R square determination Cox and Snell value is 0,940 which means that mackerel tuna fishing results and the fishermen incomes are simultaneous with the education level of fishermen children in the amount of 94%. Variable contribution of mackerel tuna fishing results (X1) which much affect the education level of fishermen children and the income of fishermen household (LnX2) affects the education level of fishermen children which is significant.
APLIKASI SISTEM INFORMASI GEOGRAFI BERBASIS DATA RASTER UNTUK PENGKELASAN KEMAMPUAN LAHAN DI PROVINSI BALI DENGAN METODE NILAI PIKSEL PEMBEDA Adnyana, I Wayan Sandi; As-syakur, Abd. Rahman
Jurnal Manusia dan Lingkungan (Journal of People and Environment) Vol 19, No 1 (2012)
Publisher : Pusat Studi Lingkungan Hidup Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1.84 KB)

Abstract

Penggunaan teknologi seperti SIG sangat baik untuk mengelompokkan data keruangan lahan berdasarkan faktor potensi dan penghambat penggunaannya. Dengan mengimprovisasi metode tumpang susun diharapkan mampu mempercepat proses studi tentang pengkelasan kemampuan lahan. Tujuan penelitian ini adalah pengaplikasian SIG berbasis data raster untuk memetakan kelas kemampuan lahan di Provinsi Bali dengan menggunakan metode ”nilai piksel pembeda”. Hasil penelitian menunjukkan bahwa penggunaan SIG dapat memperlihatkan sebaran kelas kemampuan lahan yang heterogen dan kompleks sehingga memperjelas informasi lahan pada satuan unit lahan yang sempit. Selain itu penggunaan metode ini juga membantu mempercepat proses tumpang susun dan query data. Kelas kemampuan lahan di Provinsi Bali dapat dikelompokkan menjadi 8 kelas, dari kelas I sampai kelas VIII. Sebaran kelas kemampuan lahannya didominasi oleh lahan dengan kelas VI, VII dan VIII yaitu seluas 50,7% dari luas Provinsi Bali. Kabupaten Buleleng, Jembrana, dan Karangasem berturut-turut merupakan daerah-daerah terluas yang memiliki kemampuan lahan kelas VIII. Daerah-daerah tersebut harus lebih instensif dalam menjaga lahan-lahan berkelas VIII agar tidak beralih fungsi dari lahan hutan menjadi lahan non hutan.
KARAKTERISTIK IKAN TUNA SIRIP BIRU SELATAN (THUNNUS MACCOYII) HASIL TANGKAPAN KAPAL RAWAI TUNA YANG DIDARATKAN DI PELABUHAN BENOA Swastana, I Gede Adi; As-syakur, Abd. Rahman; Novianto, Dian
Journal of Marine and Aquatic Sciences Vol 2 No 2 (2016)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (223.071 KB) | DOI: 10.24843/jmas.2016.v2.i02.78-83

Abstract

Southern bluefin tuna (SBT) is scientifically known Thunnus maccoyii, and just live in the southern hemisphere. SBT fish classified as the most exploited tuna fish in the southeastern part of the Indian Ocean, so it is protected by the International Union for the Conservation of Nature (IUCN). The aim of this study is too collected of SBT fish caught during January which is the peak of SBT landing in Benoa port. The study was conducted base on data sampling, observation and interviews on 33 ships were landing SBT fish during January 2016. Based on observations from 33 vessels, we found that the total of SBT fish that landed in Benoa port during January 2016 is 251 fresh fish and 366 frozen fish. However just 251 SBT fresh fish were sampled, and the result indicated the fresh SBT fish is dominated by weigh between 61-70 kg with number 61 fish with a total weight of 19.28 tonne. The SBT were caught dominated by fish that has FL (fork lenght) ranging between 151-160 cm with number 69 fish. While the smallest SBT range between 131-140 cm with the number of 5 fish. These results indicate that SBT fish caught in the Souetheast Indian Ocean during January 2016 is generaly relative small fish (130?160 cm FL) with a number of 163 fish and mature SBT fish (FL > 162 cm) with a number of 88 and young SBT (FL < 130 cm) with a number of 5 fish. Based on morphometric analysis, eyeball diameter of SBT range 6-8 cm, the length lateral head from the tip of the mouth to behind the gill cover ranging 46-54 cm, the length of body from the early dorsal or in front of the first dorsal fin ranging between 38-47 cm, the height of fish at the end of the anal or at the end ranging between 34-39 cm, the high of caudal peduncle ranging between 4-5 cm, th length of the dorsal base of the tail fish ranging between 53-63 cm, and the length of the base of tail anal from anal to tail ranging between 41-51 cm. Base on size and age composition, it is shown that the growth of SBT during January 2016 is isometric.
IDENTIFIKASI HUBUNGAN FLUKTUASI NILAI SOI TERHADAP CURAH HUJAN BULANAN DI KAWASAN BATUKARU-BEDUGUL, BALI As-syakur, Abd. Rahman
Bumi Lestari Journal of Environment Vol 7 No 2
Publisher : Environmental Research Center (PPLH) of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (385.259 KB)

Abstract

The issue dealing with climate changes has been becoming more stressed out along with more frequent of the occurrence of extreme weather as a consequence of anomaly climate. Examples of anomaly climate that often related to extreme weather are El Nino and La Nina. One of methods to find out the condition of El Nino and La Nina is by observing SOI values. Methods utilized in this research were by collecting rainfall data and SOI values along with regresion analyses to observe the determination coefficient values (R2). Results of this research showed that the rainfall variability on the research area did not affect fluctuations of SOI values on rainy seasons except in Munduk, while on dry seasons it was very clear shown, except in Gitgit. On the transition period, the influence of SOI values on rainfall variability was seen differ on every rain stations. On the first transition period (April), the fluctuation of SOI values had seen clearly being influenced on Baturiti?s rain station and was not influenced on Gitgit?s rain station. On the second transition (October), the influence of SOI values has affected Munduk rain station and did not influence that on Candikuning rain station. The research?s location that covered an area with monsoon rain paterns, the presence of Walker cycles, and ITCZ were also affected the results.The position of rain stations on a certain topography or location also influenced rainfall variability, so it can cause the difference on SOI values on each season.
HUBUNGAN KEPADATAN BULU BABI (ECHINOIDEA) DAN TUTUPAN TERUMBU KARANG PADA KAWASAN INTERTIDAL PANTAI SANUR Sari, Tiara Permata; As-syakur, Abd. Rahman; Suteja, Yulianto; Wiyanto, Dwi Budi
Journal of Marine and Aquatic Sciences Vol 3 No 2 (2017)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (757.93 KB) | DOI: 10.24843/jmas.2017.v3.i02.134-141

Abstract

Marine intertidal region is an area that is affected by the mainland. One of the ecosystems found in the intertidal area is the coral reef ecosystem. Urchin is one that lives on these ecosystems. Sanur Beach area has coral reefs and the intertidal zone is quite extensive. The many activities and cruise tourism in Sanur Beach will indirectly affect the life of coral reefs and associated animal in it in this case urchins. The purpose of this study was to determine the relationship density of sea urchins and coral reefs cover percentage in the intertidal area on Sanur Beach. Research done during low tide. Coral reef data collection method and the density of sea urchins using 5x5m quadratic transects were analyzed using Pear Person bivariate correlations. Urchin densities ranging between 0-2.04 ind/m2. The percentage cover coral reefs ranged from 0.1- 17.9%. High and low density of sea urchins and the percentage of coral reefs affected allegedly incompatibility place their lives and because of pressure from community activities in Sanur. The density of sea urchins and the percentage of coral cover has a significant relationship with a strong degree of correlation is 0.79. Positive direction on that relationship means that the higher percentage of coral reefs, the higher density of sea urchins. This assume in which they live almost the same that is in need of a hard substrate and urchins use of coral reefs as a shelter.