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PERUBAHAN LUASAN TUTUPAN MANGROVE PADA TAHUN 2008, TAHUN 2013 DAN TAHUN 2018 DI MANDEH KOTO XI TARUSAN KABUPATEN PESISIR SELATAN weni putri; Triyatno Triyatno
JURNAL BUANA Vol 5 No 3 (2021)
Publisher : DEPARTEMEN GEOGRAFI FIS UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/buana.v5i3.1656

Abstract

This research aims to : 1)to find out the distribution land cover of mangrove forest in the Mandeh Koto XI Tarusan area in 2008, 2013 and 2018. 2) Identify changes in the extent of mangrove forest land cover in the Mandeh area in 2008, 2013 and 2018. 3) to know out types of mangrove course in Mandeh Koto XI Tarusan in 2018. This type of research is quantitative by using a descriptive approach that is by interpreting remote sensing imagery and fieldwork of researchers using the supervised method (supervised) The results of the research are: 1) the distribution of mangrove land cover in the Mandeh area in 2008, there were 577,79 Ha spread over Ha in Ampang Pulai and 95,28 Ha in Mandeh. in 2013 there were 547,26 Hapread in Mandeh 88,48 Ha and Ampang Pulai 340,57 hectares. and 2018 which spread 724,74 Ha and found in the Ampang Pulai area at 387,52 Ha and in the Mandeh area 84,29 Ha. 2) analysis of changes in mangrove forest cover year 2008 to 2013 showed a reduction in the area from 577,79 hectares to 547,26 hectares reduced by 30,53 Ha and in 2013 to 2018 showed a very significant change from 547,26 hectares to 724,74 hectares reduced by 177,48 Ha. 3) the types of mangroves in the Mandeh area, namely: Rhizophora Apiculata (Mangrove), Nypah Fruticans, Rhizophora Mucronata, and Rhizophora stylosa. Image accuracy test is done using confusion matrix (comparison of image interpretation with field conditions) with an accuracy rate the year 2008 is 82,3% the year 2013 is 80,3 %the year 2018 is 86,2%.
KAJIAN KARAKTERISTIK MOFOMETRI DAN MORFOLOGI DAERAH ALIRAN SUNGAI ANTOKAN UNTUK MENGETAHUI PERKIRAAN BESARNYA LIMPASAN PERMUKAAN Tuti Rezky; Triyatno Triyatno
JURNAL BUANA Vol 6 No 3 (2022): Edisi Sistem Informasi Geografi
Publisher : DEPARTEMEN GEOGRAFI FIS UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/buana.v6i3.2070

Abstract

Management watershed needs to be done unitedly by coordinating, consultation and communication between the parties, and therefore data and information on das' characteristics are indispensable to the management of the das. Particularly the characteristics of morphology and morometry are directly related to the response of rainwater that will become a surface stream. The purpose of research is (I) to examine the characteristics of morometeri das; (ii) assessed the characteristics of morphology das (iii) examined river basins' surface runoff. The study is a quantitative description that utilizes secondary data asa primary source of data and USES the cook's method in determining surface levels by scoring on 4 (the four physical parameters of slope slope, infiltration, land cover, and surface loading. According to research, the smaller classified river basins has a smooth stream of 1.28 km/km clarity, a marble (slope) das antokan is dominated by flat and gentle marbles, an estimated surface of das antokan that a value c or a coefficient value of 0.58 where 58% of the rainwater that falls into the area of antokan will become a surface stream, From this value you can conclude that the flow of the surface or the coefficient of the flow of the surface of the antokan river river could be marked high, the discharge of the top basin of the antokan river by 2, 5, and 10 years worth 503.4 m3/ second, 629.2 m3/ second, and 651.9 m3/ second. The calculation may be stated that ata 2-year anniversary of the duration of the rain (time of concentration) of 6.9 hours with a gradual humidity of 6.4 mm/ 2 millimeters of rain, the maximum discharge obtained on anthocyanin basin was 503.4 m3/ second.
ZONASI RAWAN BENCANA LONGSOR PADA DAS TARUSAN PESISIR SELATAN SUMATERA BARAT Nurfajri Indra; Triyatno Triyatno
JURNAL BUANA Vol 6 No 4 (2022): Edisi Geografi Bencana
Publisher : DEPARTEMEN GEOGRAFI FIS UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/buana.v6i4.2426

Abstract

Longsor merupakan salah satu jenis bencana yang seringkali terjadi pada DAS Tarusan kabupaten pesisir selatan, Sumatera Barat. Tujuan dari penelitian ini adalah memetakan persebaran zona rawan bencana longsor di DAS Tarusan Pesisir Selatan. Pemetaan zona rawan bencana longsor diklasifikasikan dalam 3 kategori, yaitu zona rawan longsor rendah, rawan longsor sedang dan rawan longsor tinggi. Analisis peta zona rawan longsor dilakukan dengan bantuan alat GIS (Geography Information System). Pemetaan bencana tanah longsor dibuat dengan software ArcGIS dengan metode skoring dan pembobotan, serta tumpang susun (overlay) antar parameter penyusunnya. Acuan parameter yang digunakan dalam analisis adalah Peraturan Menteri Pekerjaan Umum No. 22/PRT/M/2007 tentang Pedoman Penataan Ruang Kawasan Rawan Bencana Longsor. Hasil zonasi rawan bencana longsor pada DAS Tarusan Pesisir Selatan kategori zona rawan longsor tinggi adalah seluas 2564,18 Ha. Kemudian luasan zona rawan longsor sedang adalah 16560,08 Ha. Serta luasan zona rawan longsor rendah adalah 8974,44 Ha.
TINGKAT BAHAYA BANJIR DI KECAMATAN BUNGUS TELUK KABUNG KOTA PADANG Yoga Rahmata; Triyatno Triyatno
JURNAL BUANA Vol 6 No 4 (2022): Edisi Geografi Bencana
Publisher : DEPARTEMEN GEOGRAFI FIS UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/buana.v6i4.2441

Abstract

This study aims to determine and map the flood hazard index in Bungus Teluk Kabung District, Padang City. This type of research is quantitative descriptive using secondary data as a data source. The sample in this study is a land unit located in the Bungus Bay Kabung sub-district which was taken by total sampling. The data is analyzed by overlaying the map to determine the level of flood hazard. The results of this study found that the flood hazard zoning in Bungus Teluk Kabung Subdistrict, West Sumatra Province is divided into 2 zones, namely, a medium-prone zone with an area of ​​61.8 Km2 and a high-prone zone with an area of ​​15.87.Km2. The moderate flood hazard zone in the Bungus Teluk Kabung sub-district is spread over 6 sub-districts. Most of the moderate danger zones are located in Teluk Kabung Tengah Village with an area of ​​13.5 km2, Teluk Kabung Selatan 12.03 km2, Teluk Kabung Utara 9.06 km2. Meanwhile, the high flood hazard zone in the Bungus Teluk Kabung sub-district is spread over 6 sub-districts. Most of the high hazard zones are located in the Bungus Barat sub-district with an area of ​​12.43 km2, East Bungus 6.64 km2, and Teluk Kabung Utara 1.8 km2.
ANALISIS BAHAYA BENCANA BANJIR BANDANG- DAN KERENTANAN FISIK DI NAGARI GUGUAK SARAI, KECAMATAN SUNGAI LASI, KABUPATEN SOLOK Abdul Hadi Putra; Triyatno Triyatno
JURNAL BUANA Vol 6 No 4 (2022): Edisi Geografi Bencana
Publisher : DEPARTEMEN GEOGRAFI FIS UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/buana.v6i4.2445

Abstract

Abstract The flash flood that occurred in November 2017 in Nagari Guguak Sarai, Sungai Lasi District, Solok Regency caused damage to settlements and agricultural land. The cause of flash flood is landslides in the upstream of the river due to high rainfall. To find out the areas that are potentially dangerous due to the flow of flash flood and the damage affected, it is necessary to map the flash flood hazard index using the mix method. As a result, the total area of ​​the flash flood hazard area reaches 373.347 ha and the area of ​​physical vulnerability reaches 12.33 ha with an estimated loss of more than 200 million rupiah for house damage and an estimated loss of more than 400 million rupiah for damage to public facilities. The flash flood hazard index map is used as a reference to determine areas that have the potential for flash flood overflows and the physical vulnerability map is used as a measurement of physical damage losses due to flash floods in Nagari Guguak Sarai. Keywords— Flash Flood Hazard, Hazard Index, Mix method, physical vulnerability
ANALISIS KESIAPSIAGAAN MASYARAKAT DALAM MENGHADAPI BENCANA BANJIR DI NAGARI TALANG BABUNGO Risma Dani; Triyatno Triyatno
JURNAL BUANA Vol 6 No 4 (2022): Edisi Geografi Bencana
Publisher : DEPARTEMEN GEOGRAFI FIS UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/buana.v6i4.2492

Abstract

This study aims to: 1). To find out the preparedness of the people of Nagari Talang Babungo in dealing with floods in terms of disaster knowledge. 2). To find out the preparedness of household policies in Nagari Talang Babungo. 3). To know the preparedness of disaster emergency response in Nagari Talng Babungo. 4). To find out the preparedness of disaster early warning in Nagari Talang Babungo. 5). To find out the preparedness of community resources in dealing with disasters in Nagari Talang Babungo This type of research uses descriptive quantitative methods. The technique of collecting data by conducting interviews, questionnaires and documentation. Sources of data from this study using primary data obtained and collected by researchers directly in the field and using secondary data obtained from journals and related agencies. The results of this study: 1). The knowledge preparedness of the people of Nagari Talang Babungo is in the high category with an average of 67%. 2). The preparedness of community policies in dealing with disasters in Nagari Talang Babungo is in the less prepared category with an average disaster hazard index of 54%. 3). Emergency response preparedness in dealing with disasters in Nagari Talang Babungo is categorized as not yet ready with an average disaster hazard index of 19%. 4). Disaster early warning preparedness in Nagari Talang Babugo is in the almost ready category with a disaster hazard index of 56%. 5). The preparedness of community resources in dealing with disasters is classified as not ready with an average of 15%. 6). The community preparedness index in dealing with flood disasters in Nagari Talang Babungo is classified as less prepared.
KESESUAIAN LOKASI DAN DAYA DUKUNG PULAU SAWO UNTUK MENDUKUNG WISATA KOTA PADANG, SUMATERA BARAT Dhia Ul Hayat; Triyatno Triyatno
JURNAL BUANA Vol 7 No 2 (2023)
Publisher : DEPARTEMEN GEOGRAFI FIS UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/buana.v7i2.2576

Abstract

The development of coastal ecotourism in the form of conservation of small islands, Sawo Island is one of the islands in the city of Padang. This study aims to analyze the suitability and carrying capacity of Sawo island tourism. The method used in this research is a field survey method. The results show that Sawo Island is very suitable for recreational tourism with a suitability index of 87.34%, with an area of ​​1.106,6 m2, the category of swimming tourism is very suitable for the suitability index 82.4% with an area of ​​2.993,5 m2 and quite appropriate 71.1%, for rides tourism. water category Very suitable, the index value is 84.38% with an area of ​​35,52 m2, quite suitable for the index is 68.75%, and according to the conditionality is 52.12%. The carrying capacity of swimming tours can accommodate 44 people, 120 people for swimming tours and 1 person for rides. Keywords : Carrying Capacity, Tourism, Sawo Island.