Jurnal SPATIAL Wahana Komunikasi dan Informasi Geografi
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ANALISIS MODEL HAROLD HOTELLING DALAM PENENTUAN LOKASI BIMBINGAN BELAJAR
No full textoai:jurnalunj.journal.unj.ac.id:article/212ABSTRACTThe purpose of this study 1) analyze the application of Harold Hotelling models in determining the location of tutoring (bimbingan belajar), 2) determine whether the theory is still relevant for today and for the type of service industry. Descriptive research is one of the types of research methods that seek to describe and interpret the object in accordance with what it is. By the time the research done on the Moon in March 2014 until December 2014, the unit of analysis in this study is tutoring available the Rawamangun ward, as well as some students from each of the learning guidance. Samples were taken using random samples with system lottery with the intention that each class has an equal chance of being sampled in the study. Samples taken as many as 4 tutoring. As well as students from each sample Bimbel 300 students. Analysis of the data in this study using descriptive statistical analysis.The results of the study explained that for the indicator in accordance with the theory of Harold Hotteling for determining the location of tutoring is spread evenly in the consumer market. In this indicator, the transportation cost rate per unit fixed cost of production of the same product and the difference in profit or loss of the company is only based on the position and location of the source material as well as all costs incurred depending on the situation and location of manufacturers serving the needs of the market. There is no differentiation ability of sellers to conduct market price levels except the only factor in the cost of transportation and every company has complete freedom to operate in the market without incurring the costs and demand is inelastic product is perfect, while the less fit is the indicator of the selling price per unit and the distance is fixed and the qualification level of the buyers and sellers comparable.Keywords: Learning; Guidance; Hotelling; Locatio
ANALISIS KONDISI LAMUN (SEAGRASS) DI PERAIRAN PULAU PRAMUKA, KEPULAUAN SERIBU
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This research aims to analyze the condition of seagrass ecosystem to see water quality data of the seagrass habitat and percentage cover of seagrass in the waters of the Pramuka Island, Seribu Islands. The research was conducted over two months from October to November 2014.This research used a descriptive method with field survey approach. The population in this study is the seagrass in Waters Pramuka Island. Determining the location with purposive sampling of the sampling is divided into three stations is North, East and South. Data collection techniques include primary data and secondary data. Primary data is data of seagrass (type, percentage cover and density of seagrass) and data of seagrass habitat environmental parameters (water temperature, current speed, brightness, depth, salinity, substrate, TSS, DO, pH) were obtained by direct measurement in the field, while secondary data include the general state of the research sites. Data analysis techniques used in this study using analysis of community structure of seagrass and water quality analysis. The results showed that seagrass species found in the Pramuka Island there are 6 types of seagrass Cymodocea rotundata, Cymodocea serrulata, Enhalus acoroides, Halophila ovalis, Halodule uninervis, Thalassia hemprichii. Conditions of seagrass in the waters of the Pramuka Island included into the category of less healthy-poor seagrass. At station 1 percentage by 31% classified seagrass less healthy conditions, while the other two stations are stations 2 and 3 belong to the category of the poor condition of seagrass, with each percentage cover of seagrass 19.4% and 20.3%. Of all water quality parameters measured, all the parameters are still in normal circumstances, but there are some parameters whose value is high at some stations TSS and pH value is high at station 2 with a value of TSS 18 mg/l and a pH value of 8.2. Water quality and seagrass communities in station 1 is still in good condition for the growth of seagrass, because at this station is an unspoiled area away from human activity, while the stations 2 and 3 have undergone changes in community structure of seagrass because at this station has several anthropogenic activities that disrupt the lives of seagrass, mostly from human activities such as domestic sewage and hoarding/reclamation, which affects the condition of seagrass at station 2 and 3 are poor seagrass.
Keyword: Seagrass, Water Quality, Pramuka Islan
MODEL PENANGANAN KERUSAKAN TERUMBU KARANG DI KEPULAUAN SERIBU DKI JAKARTA
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Tujuan penelitian ini adalah untuk mengkonstruksi model penanganan kerusakan terumbu karang di perairan Kepulauan Seribu DKI Jakarta khususnya di Pulau Pari selama Bulan Agustus hingga minggu pertama Bulan Oktober tahun 2013. Metode penelitian yang digunakan adalah metode kualitatif melalui prosedur studi pendahuluan, observasi lapangan, dan pengamatan langsung di lapangan terutama kondisi fisik, serta kegiatan wawancara mendalam yang dlanjutkan dengan focus groups discussion. Populasi pada penelitian ini terdiri dari biofisik lingkungan (terumbu karang) dan sosial (masyarakat), sedangkan pengambilan sampel pada terumbu karang menggunakan teknik area dan untuk sampel sosial menggunakan purpossive.Teknik pengumpulan data biotik terumbu karang menggunakan metoda Line Intercept Transect. Sedangkan pada faktor abiotik untuk analisis gugus terumbu karang secara makro ditekankan pada pemetaan habitat gugusan karang di sekitar perairan. Adapun teknik analisis data menggunakan metode Triangulasi. Hasil penelitian menunjukkan bahwa: 1) Kondisi terumbu karang di perairan Pulau Pari masih dalam kondisi baik, 2) Masih dominannya mata pencaharian penduduk sebagai nelayan, 3) Formula mediasi konflik sosial-ekonomipariwisata dalam penanganan kerusakan terumbu karang khususnya di Pulau Pari Kepulauan Seribu perlu memperhatikan tiga pilar utama yaitu: organisasi lokal maupun luar pulau, partisipasi wisatawan terhadap pelestarian terumbu karang, serta pemberdayaan bagi warga lokal, pendatang maupun para wisatawan, dan 4) Upaya pengembangan model penanganan kerusakan terumbu karang lebih ditekankan pada aspek-aspek penguatan organisasi lokal yang semakin tangguh. Organisasi lokal ini tentunya dibangun atas dasar kesepahaman terhadap faktor-faktor perubahan yang diinginkan dan atau yang tidak diinginkan dan itu telah disepakati. Penguatan organisasi lokal tentunya harus memberikan teladan yang baik terhadap pendatang terkait upaya pelestarian lingkungan khususnya penyelamatan dan pelestarian terumbu karang.
Kata kunci: Model penanganan kerusakan terumbu karang, Kepulauan Seribu, DKI Jakart
IDENTIFIKASI KONDISI TERUMBU KARANG PERAIRAN BAGIAN SELATAN PULAU SEPANJANG, KABUPATEN SUMENEP DENGAN MENGGUNAKAN CITRA LANDSAT 8
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Penelitian ini bertujuan untuk mengenai bagaimana sebaran dan kondisi terumbu karang dengan mengunakan citra landsat 8. Lokasi peneltian dilakukan di perairan sekitar Pulau Sepanjang, Kecamatan Sapeken Kabupaten Sumenep. Penelitian ini mengunakan metode deskriptif kuantitatif dengan menggunakan persamaan Lyzenga dan diterapkan pada Citra Landsat 8 dan dilakukan verifikasi lapangan. Hasil penelitian menunjukan bahwa perbedaan antara hasil pengamatan lapangan dengan hasil analisis mencapai 37,5 % perbedaan ini dijadikan sebagai dasar untuk melakukan koreksi pada citra untuk menghasilkan citra yang lebih tepat. Dan secara umum penggunaan persamaan/algoritma lyzenga pada landsat 8 bisa digunakan untuk mendeteksi kondisi umum terumbu karang khususnya untuk mendeteksi terumbu karang hidup dan mati, sebagai langkah awal untuk mengidentifikasi kualitas terumbu karang.
Kata Kunci : Terumbu karang, Lyzenga, Citra Landsat
INTERAKSI INTERNASIONAL DALAM PERSPEKTIF “DETERMINISME†GEOGRAFI: PANDANGAN DAN KRITIK
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PARTISIPASI MASYARAKAT DALAM PELESTARIAN HUTAN KOTA
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Bogor Botanical Gardens (BBGs) has a big role for carbonic emission reduction. Many functions of BBGs such as ecologycal, social and economic functions. The strategic function of BBGs needs more attention from Bogor’s citizen for its continuities. However based on the fact showed that exuberances of BBGs trees has decreased. Due to many cars passed by in BBGs area became crowded. there was reduction of bird species form 85 species (2002) become 35 species (2007). From this phenomena, it is not impossible if one day the trees at BBGs have snatched by human for getting some waters. The interviews were conducted to the BBGs visitors that they live in the city of Bogor. The investigation revealed that the active communications among BBGs officer with the society around it become an absolute requirement to conserve BBGs as rescue media of biodiversity crisis. The most important aspect is the role of the community for the success of the preservation of the BBGs as urban forest.
Keyword: Urban forest preservation, Bogor Botanical Gardens
INVENTARISASI DAERAH RAWAN LONGSOR KABUPATEN BANJARNEGARA JAWA TENGAH
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This Research aims to inventory landslide-prone areas in Banjarnegara district, Central Java. The study was conducted between May-September 2012. The method used in this research is descriptive quantitative method with a spatial approach. Technical analysis of the data in this study is the use overlay of several variables landslides, the data is then entered into the data input software program Arc View. The data is processed, then is the determination of landslide prone areas using Storie index Broadly speaking causative factor.a landslides) geological conditions such as weathered rock, soil layers slope, earthquakes and volcanic eruptions.b) Climate namely when high rainfall .c) topography is steep slopes. Pagenten subdistricts and districts Pandanarum including the high risk of avalanche danger. This can be evidenced by the number of landslides that often occur, particularly in the village of Tlaga (Pandanarum district) and Mundasari village and village in the district Suwidak Pagenten. Subdistrict Wanayasa, Batur, Banjarmangu, Kalibening and Sigaluh is a district that includes categorized as being the average of 4-6 landslide each year. Region of relatively light among other avalanche events in the Pejawaran district , Banjarnegara, Pagedongan, Lampok, and Purwanegara with only 2-4 landslide each year. Keywords: Inventory landslide-prone areas, Banjarnegara, Central Java
STRATEGI PENINGKATAN PERAN STAKEHOLDER DALAM PENGELOLAAN MANGROVE DI KABUPATEN TANGERANG
No full textABSTRACT Mangrove ecosystems have important ecological, economic and social functions that need consideration in coastal development. Mangroves in Tangerang District are being degraded by human activities brought about by a range of stakeholders. The complexity of stakeholders creates problems through various government departments having overlapping jurisdictions. This study aimed to develop strategies to increase the role of stakeholders in the management of mangrove ecosystems in Tangerang regency. Stakeholders were identified from interviews obtained through a snowball sampling method. In the coastal district of Tangerang there are 13 different types of stakeholders involved in mangrove management from government to local people. Each of these stakeholders has an interest and influence in mangrove management. Lack of coordination among stakeholders often results in a variety of management activities. The study recommends strategies to increase the role of stakeholders through improved coordination, information and collaboration among stakeholders. Keywords: stakeholders, management, mangrove
URGENSI PELESTARIAN DAN REHABILITASI MANGROVE BAGI MASYARAKAT DESA PANTAI MEKAR KECAMATAN MUARA GEMBONG
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This study aimed to determine the role, functions and benefits of mangrove forests to people's lives, causing damage to mangrove ecosystems, as well as the efforts of preservation and rehabilitation of mangrove ecosystems, which have been, are being and will be done in the future in the village of Desa Pantai Mekar, Muara Gembong. This type of study is a qualitative research approach and deep insight into the survey with a view to understanding social situations, events, roles, or groups of specific interactions. This study uses a variety of techniques and a variety of instruments to collect data. Data analysis using descriptive qualitative techniques. The results of the study were researchers from interviews get to the informant, discovered a few things related to the condition of the village before 1980 are as follows: (1) water of Citarum river can still be used to meet the needs drinking and cooking water. The condition water of Citarum River is still clean and healthy so there are no complaints about sore skin. (2) Harmonization ecosystem around Citarum River is still well preserved. Mangrove forests are broadly useful as a bastion of protection of coastal areas from the impact of flooding. (3) Prior to 1980, people never feel the flood, vast mangrove forests also provide benefits to fishermen because under mangrove forests store a lot offish habitat so that fishermen catch fish gained a lot and easy. This study gives the conclusion that mangrove forests have a role, function and great benefits to people's lives Desa Pantai Mekar, Kecamatan Muara Gembong. The cause of the destruction of mangrove forests on there, due to occupational mangrove ponds, agricultural, residential location, fulfilling the need for firewood by the citizens, abuse of authority by purchasing land illegally forestry, forestry lack of supervisory personnel. Mangrove rehabilitation efforts have not been accompanied by proper preservation. The parties directly benefit from mangrove deforestation, not to replant immediately. Keywords: mangrove forests, the urgency of preservation, rehabilitation
PERBEDAAN MODEL PEMBELAJARAN GEOGRAFI: PROJECT BASED LEARNING DENGAN PROBLEM BASED LEARNING TERHADAP HASIL BELAJAR SISWA DALAM KURIKULUM 2013 DI SMAN 112 JAKARTA BARAT
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This study aims to obtain empirical data whether there is any difference in student result between students who use a geographic model of project-based learning with students who use a model of problem-based learning in the curriculum in 2013. Research using experimental methods. The population of this study are all tenth grade social studies in SMA 112 West Jakarta. While the sample in this study are two classes of tenth grade social studies in SMA 112 West Jakarta which has not much different of student result in geography, obtained by X IPS 2 as an experimental class using a model of problem-based learning and X IPS 3 as an experimental class using a model of project-based learning. This research instrument are 24 questions of pre-test and post-test with 5 multiple choices. Before the instrumen is used, there is validity testing using Pearson with SPSS 19.0. From these calculation obtained 24 valid instruments and 6 invalid instruments. Testing requirements analysis conducted prior to hypothesis testing, are test for normality and homogeneity tests. Normality test using the Liliefors test, from the calculation obtained significance value of class using the model of projectbased learning = 0,94, and a significance value of class using the model of problem-based learning = 0,11, each of the significance value > 0,05. Homogeneity test using One-Way Annova test, values that obtained from the calculation of the probability = 0.264 is greater than the significance level = 0.05. Based on tests of normality and homogeneity test can be concluded that the data derived from a homogeneous population and a normal distribution. Hypothesis testing using t-test formula two parties, of the calculation obtained t-count = 2.200 is greater than the t-table = 2.020. This proves that hypothesis Ha is accepted. Therefore, the results of this study concluded that there is a difference between model of project-based learning with problem-based learning model of the student results of geography in the curriculum in 2013, where the model of project-based learning is more suitable when used in disaster mitigation material because this model has the advantage in the dimensions of the conceptual knowledge not owned by a model of problem based learning
Keywords: Models of Learning, Project Based Learning, Problem Based Learning