Sumatra Journal of Disaster, Geography and Geography Education (SJDGGE)
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Land Cover Change Mangrove Ecosystem in the Coastal Area of Bungus Teluk Kabung Padang City
Get PDFThe mangrove ecosystem is an ecosystem that grows above the brackish marshes that are located on coastlines and influenced by the tides of the sea water. The conditions of the mangrove ecosystem continue to experience widespread decline and change in density especially on the coastal area of Bungus Teluk Kabung. The study was conducted in June – August 2019. The purpose of this research is the major analysis of the rate of change of mangrove land cover, analysis of perception/community opinion about the conditions and efforts made by the Government of the mangrove and analysis of the condition of the mangrove ecosystem. The method used is a quantitative approach to descriptive. The result is a mangrove land cover of 2009 covering an area of 80.71 ha while the year 2019 is 60.35 ha, the rate of change (-25,23%/10 year), the change in mangrove area with a change rate of-100% found in the location of Teluk Sirih where the year 2009 (8, 82ha), and the year 2019 (0 ha). The change occurred due to the construction of the PLTU of Teluk Sirih. With the increase of mangrove ecosystem in the area of Pertamina Jetty because of the rehabilitation of local government. Its expansion in the year 2009 (3.06 ha) became the year 2019 (3.96 ha) with the addition of 0.90 ha and the rate of change of 29.41%. NDVI values of 2009 in 0.60 with normal vegetation density conditions and the year 2019 NDVI values in 0.42 with good vegetation density conditions
The Meaning of Housework (Domestic Sector) For the Left-Behind Husbands of Indonesian Female Migrant Workers in Dungmanten Village, Tulungagung Regency
Get PDFThe narrowing opportunities of employment in the home country are the reason why many Indonesian people of working age become migrant workers overseas. The left-behind husbands of female migrant workers must play a double role as a head and a homemaker in the family. This research aimed to identify the underlying social context and the resultant meaning of housework according to the husbands. The analysis design was based on the phenomenological perspective introduced by Alfred Schutz. The results showed that the female population in the observed village decided to follow the flux of Indonesian workers migrating abroad, mostly to Hong Kong and Taiwan. Relying on the pay cut scheme for their departure to the destination countries, they were able to earn up to IDR 7 million per month (nearly USD 500). The left-behind husbands, ranging from 31 to 57-year-old male, accepted the responsibility of doing housework or working in the domestic sector because of economic constraint (‘because motive’) and the high income earned by their wives (‘in-order-to motive’). They interpreted housework as either (1) invisible underemployment or (2) main job
Spatial Thinking Analysis of Geographic Students Based on Lesson Study for Learning Community (Lslc) in Geographic Learning
Get PDFSpatial thinking in geography learning is very important to explain phenomena, find meaning, answers, and solutions about shape, size, orientation, location, direction, objects in certain spaces on the earth's surface. Therefore, geography students must be able to solve problems in their environment through spatial thinking. "Lesson Study for Learning Community" is considered one of the right approach to solve the problem. The research was conducted at the Department of Geography, FIS UNP in the January-June 2018 semester. The subjects of the study were geography students registered in 2016. The data collected through observation by 6 observers. Learning scenarios follow the steps of Lesson Study; "Plan", "Do" and "See". The data were analyzed by using data reduction, display and data verification techniques. The result of study show that students' spatial thinking skills based on "Lesson Study for Learning Community" can solve the problem of geography learning, both in asking, answering, discussing, and expressing opinions. Learning is more directed, fun, and collaborating between students, model lecturer, and observers
Identification of Physical Characteristics and the Change of Mangrove Region in Coastal Southern Part of Padang City, West Sumatra - Indonesia: Identification of physical characteristics and the change of mangrove region in coastal southern part of Padang city, West Sumatra - Indonesia
Get PDFThe research about the identification of mangrove physical condition and the change of mangrove area has aims are knowing of mangrove physical condition and the change of mangrove area in the coastal region southern part of Padang city. The method used in this research is the field survey and multi-temporal satellite imagery analysis in 2001 and 2018 year. Based on the field survey at the date of August 18, 2017 generally the mangrove that found in research location i.e Rhizophora Apiculata, Rhizophora mucronata, Sonneratia alba, and Nypa. The spatial distribution of the mangrove ecosystem is dependent on the ecological conditions of the area as reflected by the types of mangrove vegetation that grows and develops in the research location. A decrease in mangrove area that occurred between of 2001 to the 2017 years i.e in the coastal region of Bungus bay i.e 5.54 ha, where the decrease in mangrove area occurred because some mangrove plants were cut down and made the settlement land, while in the region of Sungai Pisang bay happen to increase in mangrove area i.e 36.12 ha, where the increase in mangrove area occurred because of the region obstructed by big waves of the sea (protected small the islands)
Developing the Facebook-Problem Based Learning Model: A Way of Improving the Geographical Solving-Problem Skills at Senior High Schools
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The primary purpose of this study was to develop a model of learning based on Facebook-assisted learning to improve the geographic problem-solving abilities of high school students. Research and Development was the type of research entailed. Instructional System Design entailed was Plomp consisting of (1) preliminary research (2) Prototype Phase (Prototyping phase); 3) Assessment stage. The product design stage investigates the validity and practicality with formative evaluations which include self-evaluation and one-to-one. The assessment stage uses summative evaluation which aims to assess the validity of the product in aspects of the organization, format, material and language. Practicality assesses the level of ease, the efficiency of time and benefits. As for effectiveness, it assesses student learning test results using the t-test. Exam questions are made in the form of essays and are assessed using an assessment rubric. Data is collected through discussions, observations, interviews, questionnaires and tests. The collected data were analyzed using descriptive and inferential statistics. The results showed that for the validity of the Model book and its support system (teacher's books and student books) met the valid criteria of> 3.20 while the ICC value of the model book was 0.987, the ICC of student books was 0.943 and ICC of the teacher's book 0.965. These figures indicate that the model and the supporting system according to the expert is appropriate. The practicality results obtained are very practical that is easy to use, understood, very helpful in the learning process, the use of adequate time, and fun for students to learn. Effectiveness test results enable students to solve Geography problems in High Schools. In conclusion, the Valid, practical and effective Facebook-assisted problem-based learning model can improve the geography problem-solving ability of high school students.
, e-learning, faceboo
Landslide Mitigation Through Socio-Cultural Approach With Policy of Utilization of Local Wisdom in Pangkalan Sub-District of Lima Puluh Kota
Get PDFThis article is the result of research that attempts to reveal the mitigation of landslide disaster with socio-cultural approach. Seeking to see side of local wisdom of society in District of Lima Puluh Kota of West Sumatera Province conducted by mixed methode by combining data collecting technique that exist in research with approach of qualitative and qualitative, that is questionnaire, observation, interview and Focus Group Discussion (FGD), sampling with purposive sampling technique. data wetting by means of triangulation of data in both triangulation of sources, methods and time. Further data analysis with interactive data analysis model from Miles and Huberman. The results of this study successfully identified the values of local wisdom for the mitigation and adaptation of landslide disaster that actually existed in the realm of community culture in the District of Lima Puluh Kota. Those values are natural signs, social-cultural bans and powers and information media of local wisdom values in the face of natural disasters such as landslides
Land Cover of Mangrove Ecosystem in Marine Tourism Integrated Mandeh Sub-District Koto XI Tarusan, Pesisir Selatan Regency
Get PDFMangrove is a plant that can live in tidal areas and form a community of independent vegetation, ranges to various disorders, especially marine resource management that is not environmentally friendly causing damage to the Mangrove forest. Thus researched to know the condition, the rate of change in land area and public response to the mangrove ecosystem implemented in August 2019 using Phantom 4 Drone data and a descriptive method Quantitative. The results were adopted, namely, the condition of the mangrove ecosystem was declared normal (0.22) in the year 2009 using NDVI value classification, as well as the year 2019 NDVI value of 1 in the condition is very good. The area on land cover amounted to 406.61 ha in 2019, while the year 2009 amounted to 406.69 ha with a change of-0.08 ha. Mangrove conditions with an area of 79.13 ha in 2009, a decline in 2019 of 60.01 ha, a change of-19.12 ha (-24.16%). The mangrove ecosystem is getting worse because of the road construction that causes some material to fall into the mangrove area that makes the sedimentation wider, as occurs in the segment 3 The change of mangrove overflow from the year 2009 (21.60 ha) 19.83 ha in the year 2019. People are still promoting the economy compared to the survival of mangroves because the existence of mangroves is considered economically beneficial for them
Flood Disaster Vulnerability Factors in Solok Selatan Regency
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The purpose of this research was to find the vulnerability factors of flood disaster in Solok Selatan Regency. This is a descriptive exploratory research, using primary and secondary survey as methods of data collection. The primary survey was done through semi structured interview with stakeholders, selected from government group. Secondary survey was conducted by institutional survey to obtain a general description of area and flood area in Solok Selatan Regency. To know the vulnerability factors of the floods, the researcher used an analysis technique called content analysis. The result showed that the factors of flood vulnerability in Solok Selatan were: high rainfall, poor drainage condition, slope, factor of road construction vulnerable to water, many meanders, factor of total population affected by floods, siltation caused by waste.
Key words : vulnerability factors, flood disaster, Solok Selatan Regenc
Study of Quality Changes and Determination of Water Pollution Index At River watershed Bengkulu
Get PDFBengkulu Eksisting problematic conditions on water quality. Seeing the importance of water quality because it is the only source of mineral water Bengkulu city in which the water flowing from the fountain in Central Bengkulu Regency. Context territory that includes two administration (city of Bengkulu and Central Bengkulu District) causing the water quality is not controlled and there is no valid data for data management of the waters of the river basin. So the purpose of this study to analyze the quality of river water in the river watershed segmentation Bengkulu. In order to obtain the level of water quality and water pollution index of a river that became a trend among regions and be detail data for watershed management policies. This study was conducted to test the water quality of the physical parameters, chemical and biological by comparing the results of laboratory tests of water quality 2 seasons. This method is very good for being able to analyze and describe the trend of changes in water quality in the watershed Bengkulu. Data obtained from secondary data and primary data. Secondary data is the result of testing during the dry season. Primary data are data that represent the results of field tests of the rainy season. After the data collected then do the test according to river water quality standards appropriate Government Regulation No.82 of 2001 each parameter water. Then calculated the level of pollution in accordance with the model storet Minister of Environment Decree 115 of 2003. Based on exposure to the above results it can be concluded that the water quality in the watershed physically Bengkulu river water during the rainy season and dry season condition with variations in color and turbidity is murky brownish with no difference significant changes in temperature. Chemical and Biological water quality is a significant change in the elements of the TSS, BOD5, COD, and metal content (Fe, Mn, and Cu) which exceeds the limit of the watershed water quality standard Bengkulu. These changes will have an impact on water biota that live in the river because of the water conditions so. So it can be seen that the river water biota disrupted by the changes in the water. Indications are some companies that exist in mines and factories dump wastes in the river. The quality of water exceeds the water quality standards in the segment of river watershed upstream section that is affected by the mining activities and encroachment of forests due to agricultural extension ie oil palm plantations by the community. While in the Central Part of the watershed is affected by rubber and palm oil processing plant palm. Bengkulu watershed-level water contamination, that the river is heavily polluted with values exceeding water quality standards of pollution. Pollution caused by the exploitation of mining and agricultural extension in DAS Bengkulu give clear results that Bengkulu river is heavily polluted with an indicator that the water turbidity never be above normal during the rainy season and the dry season and the area of the river segment
Dynamic System Analysis of Green Open Space in Medan-Indonesia
Get PDFThe population of Medan has been increasing from 2015 until 2019 which causes rapid and uncontrolled population and residence densification in urban area. The increase in the need for space to accommodate the increasing population growth has caused vulnerability of the change from the use of GOS (Green Open Space) to land use such as residences, industry, and services. The change in the land use will save negative impact on environmental condition if it is not handled immediately. Therefore, it is necessary to control the land use, viewed from the availability of GOS which is begun by analyzing the pattern of distribution, types, and characteristics of each GOS. The objective of the research was to analyze 1) the change in using land in each sub-district in five years (2015-2019) and 2) Some factors which influenced the dynamic change in using GOS to become used land in Medan. The research used 3 (three) stages of design: 1) literature study, 2) gathering the data (primary and secondary data), and 3) discussion on the result of processing the data. The result of the research showed that 1) Since the period of 2015-2019 Medan has experienced a very dynamic change in land use. The most significant change was as follows: residential land increased to 829 hectares, industrial land increased to 87 hectares, and service land increased to 476 hectares while vegetation land (GOS) such as wet rice field decreased to 18 hectares, mixed plantation land decreased to 116 hectares, swamp forest land decreased to 956 hectares, but dry field increased to 656 hectares, and 2) The simulation results suggest that a decline occurs in the area of green open spaces throughout the simulation year period, i.e. from 7.405 Ha (2015) to 2.023 Ha (2028); the total population during the simulation year period which formerly was equal to 2.210.624 inhabitants (2015) will have increased to 2.454.920 inhabitants (2028); while the temperature from 28.14o C (2015) increases to 28.50oC (2028); and finally, GDRP during the simulation year period which formerly was equal to IDR 164.721,82 billion (2015) increases to IDR 315,465,92 billion (2028)