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Hiromasa Watanabe
Session ID: P025
Published: 2022
Released on J-STAGE: October 05, 2022
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This study focused abandoned villages in Shikoku region and clarified (1) the number and geographic distribution, (2) the current status of resource management and (3) future distribution trends through the creation, analysis and mapping of geospatial data using GIS, questionnaires to municipalities, and statistical processing. The results are as follows. First, the number of abandoned villages in the Shikoku region is 1,062 at present, and their distribution is concentrated around the Shikoku Mountains. Second, regarding questionnaires, it can be seen that people continue to come and go even after the village abandonment, but the majority of villages have "unknown" status, suggesting that the municipal administration is unable to grasp the status of the villages. Third, The number of abandoned villages in the future is estimated to reach 2,431 by 2050 and their distribution is strongly concentrated around the Shikoku Mountains.
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Haruki NUMAJIRI, Hideo Oyagi
Session ID: 311
Published: 2022
Released on J-STAGE: October 05, 2022
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The representation of water quality characteristics of inorganic major constituents in geography is often presented on maps using hexadiagrams. On the other hand, trilinear diagrams are suitable for representing groups of water quality characteristics, but are not suitable for spatial distribution analysis. Therefore, in this study, a color palette was created based on the structure of the trilinear diagram. By using these colors and superimposing them on a map as geographic information, we tried to see if the spatial distribution of water quality could be more intuitively deciphered than with conventional expressions of water quality characteristics.
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TEIJI WATANABE, Natsuki ROKUI, Mikiko SASAKI
Session ID: 336
Published: 2022
Released on J-STAGE: October 05, 2022
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Simshal is a small village with a population of about 2,500, consisting of the Wakhi ethnic minority. This study discusses how the Shimshal society has been transformed by two external pressures, tourism development and trophy hunting. While a summer rotation system by the residents was introduced to maintain livestock grazing, the income generated by tourism and trophy hunting, which became possible by the completion of the ‘jeep road’ in 2003, has already grown to exceed the income from livestock sales. The sustainability of the village is increasingly dependent on the new sources of income that have been added since 2003.
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Erika MIURA, Koji KODERA
Session ID: P006
Published: 2022
Released on J-STAGE: October 05, 2022
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Ⅰ Introduction
Due to the heavy rains in western Japan that occurred in 2018 and the heavy rains in August 2014, sediment-related disasters occurred in steep slopes and places where large-scale residential land was created by carving out mountains, causing many sacrifices. In particular, many of the victims were elderly and some died during the evacuation. In this paper, we will examine evacuation methods and risks in the event of a disaster, targeting "people requiring assistance during a disaster" who live in natural and artificial terrain.
Ⅱ Target area
The target areas were Zushi City, Kanagawa Prefecture, and Yokosuka City (western part), where the topography was changed due to the development of residential land, and where it was designated as a steep slope collapse area. Using QGIS, the altitude of the target area was created based on the 5m mesh of the basic map information "elevation model" of the Geographical Survey Institute (Fig. 1). It can be seen that in Yokosuka City (western part), there are many mountains and hills, and there are few flatlands. As a result of conducting a field survey, houses were densely located on slopes. In Zushi City, more gentle mountains are distributed than in Yokosuka City. As a result of conducting a field survey as in Yokosuka City, residential land development was being carried out near the summit, and along with this, there were many flattened areas. However, in both areas, there are many points where it is difficult for vehicles to enter, and it can be assumed that evacuation will be difficult in the event of a disaster.
Ⅲ Elderly people in the target area
In both regions, about 30% of the population is 65 years old or older, indicating that the population is aging. When evacuating, especially in Yokosuka City, there are many slopes and stairs, so it is assumed that evacuation will be done on foot. In the city, a "disaster support plan for people requiring assistance" has been formulated, and a pre-designated "neighborhood supporter" will support the evacuation of people requiring assistance. However, as the population ages, it is difficult to certify supporters, and supporters are not always able to support evacuation. In addition, the heavy rain disaster that occurred in Hiroshima Prefecture caused a lot of damage in the housing complex, facilities for the elderly, and welfare facilities, such as flooding on the floor and complete destruction of buildings due to landslides. Therefore, in both cities, QGIS was used to distribute facilities for the elderly and housing complexes on a hazard map, and based on this, a field survey was conducted to examine the risk of disasters at the location (Fig. 2). As a result, it was considered that the damage caused by the earthquake disaster would be more affected by the cracks in the building than the damage caused by the sediment disaster.
Ⅳ Conclusion
In the future, considering the physical characteristics of the elderly, we will consider evacuation routes and evacuation methods to the designated evacuation site in cooperation with the city.
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Hideo OYAGI, Kazuhisa CHIKITA, Yuki SAWADA, Shosaku KANAMORI
Session ID: 310
Published: 2022
Released on J-STAGE: October 05, 2022
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Seasonal changes in water temperature and water quality in Lake Shikaribetsu
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A case study in Ibaraki Prefecture
Koichi Tanaka, Tomohiro Hata, Hideyuki Sekiguchi
Session ID: P007
Published: 2022
Released on J-STAGE: October 05, 2022
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from activities based at "alternative spaces" in Osaka city
Emma Matsui
Session ID: 442
Published: 2022
Released on J-STAGE: October 05, 2022
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A Case Study of Geographical Indication "Yamanashi" Sake
Takae Shimamoto, Masahiko Morozumi
Session ID: P023
Published: 2022
Released on J-STAGE: October 05, 2022
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Kunimitsu YOSHIDA, Hiroki SATO, Siyuan ZHANG, Kazuki HONDA, Soya SATO
Session ID: 515
Published: 2022
Released on J-STAGE: October 05, 2022
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Yuki Asano, Yusuke Nakamura, Asuka Suzuki-Parker, Shohei Aiba, Hiroyuk ...
Session ID: 213
Published: 2022
Released on J-STAGE: October 05, 2022
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Koki Teshirogi, Hitoshi Saito, Shoichiro Uchiyama
Session ID: P017
Published: 2022
Released on J-STAGE: October 05, 2022
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Abhik Chakraborty
Session ID: 233
Published: 2022
Released on J-STAGE: October 05, 2022
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Yaksuhima Island, one of the first properties from Japan on the UNESCO World Heritage Sites list, is a place of impressive geomorphological diversity. However while the stories of old-growth forests dominated by Yakusugi Cedar and local culture dominate tourism promotion, this geomorphological aspect remains largely overlooked. In this presentation, the role of past and ongoing geomorphological processes behind landscape diversity and forest sustenance will be discussed and takeaway lessons for ecotourism will be provided.
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Toshio HATSUZAWA
Session ID: 417
Published: 2022
Released on J-STAGE: October 05, 2022
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SHUJI NAKAMURA, Yumi ISHIBASHI, Mana HIROTOMI, Kyoko YAMANE
Session ID: 438
Published: 2022
Released on J-STAGE: October 05, 2022
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Yuuzi TATUOKA
Session ID: 332
Published: 2022
Released on J-STAGE: October 05, 2022
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YUKO MATSUMIYA
Session ID: 335
Published: 2022
Released on J-STAGE: October 05, 2022
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In case of the National Sanatrium Matsuoka Hoyoen, in Aomori City, Aomori Prefecture
Shunsuke HIROSE
Session ID: 333
Published: 2022
Released on J-STAGE: October 05, 2022
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In order to eliminate prejudice and discrimination against leprosy, which still exists, and against people with infectious diseases, as revealed by the spread of COVID-19 infection today, it is possible to understand issues similar to the places where former leprosy patients have lived and relive their daily lives. This reliving can be done through visits to the archives attached to national sanatoriums for leprosy and through reading the writings of those who have lived there.
This study proposes that geographical descriptions of national sanatoriums for leprosy can be a source of information to support such an understanding of leprosy. However, as leprosy sanatoria involve a complex combination of various problems, here we focus on the relationship between the National Sanatorium Matsuoka Hoyoen and disasters as a case study, and conduct geographical research and descriptions from a perspective centred on disasters.
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Focus on review of Zeitschrift für Geographiedidaktik
Hiroaki Sakaue
Session ID: P032
Published: 2022
Released on J-STAGE: October 05, 2022
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Hiroki Yamamoto
Session ID: S102
Published: 2022
Released on J-STAGE: October 05, 2022
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Kenji Kaibe
Session ID: 412
Published: 2022
Released on J-STAGE: October 05, 2022
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The purpose of this study is to highlight 2 major points. First is to clarify background information, mechanism and other factors of sustainable progress of regional revitalization by private companies at Tochigi prefecture in Japan through the utilization of woody biomass. Secondly, is to evaluate the possibility of horizontal expansion to other regions. Both points tackle woody biomass utilization with interview results. It includes studies on collaboration with a sawmill, wood chip factory, biomass power plant, heat supply facility and eel farm. Last but definitely not the least are the analytical results of these factors behind the above activities in terms of forest resources, materials and energy utilization. In this presentation, we will report on these results.
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In relation to buildings, commercial functions, and social stratification
Sayaka Ymamoto
Session ID: 541
Published: 2022
Released on J-STAGE: October 05, 2022
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mainly on pollution sources in river source basin(5)
Masaki Oppata, Koji Kodera
Session ID: P015
Published: 2022
Released on J-STAGE: October 05, 2022
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- Focusing on the results of the 17th , 18th and 19th "Simultaneous Survey of Familiar Water Environments"-
Koji KODERA, Cao WANG, Yoshihiro IGARI, Kei SAITOH
Session ID: 313
Published: 2022
Released on J-STAGE: October 05, 2022
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ⅠIntroduction
In Japan, water pollution became a problem nationwide during the period of high economic miracle, but due to legislation and raising environmental awareness of society as a whole, water quality has improved rapidly. However, even now, not only is it concentrated in Tokyo, but urbanization is progressing in rural areas, and there are still areas where water pollution is severe, such as in the suburbs. In the large river basins, there are many polluted areas in the upstream area rather than the downstream area due to the problems of wastewater treatment facilities in the mountain village area, etc. The results of the "Water Environment Survey of Public Water Areas" that has been continued by the government since 1971, and the nationwide observation records such as the "National Simultaneous Survey of the Familiar Water Environment" that started in 2004 centered on citizen groups. We have mainly examined long-term fluctuations in river water quality in Japan, but in this paper, in addition to the 17th (2020) and 18th (2021), the 19th in 2022 was measured by Hosei University. We will also consider the results.
Ⅱ Research method
Using the National Institute for Environmental Studies database "Water Quality Survey Results for Public Water Areas", the changes in water quality since 1971 are organized, and for the "National Simultaneous Survey of Familiar Water Environments", his COD from 2004 to 2018 The results of the survey were organized and long-term changes were considered. In addition, before 1971, the data extracted from various research results were organized, and after 2018, the nationwide observation records conducted in the laboratory were used. Furthermore, for 2020, 2021, 2022, the observation results of a total of about 5,000 points carried out by the laboratory and related parties were targeted.
Ⅲ Results and consideration
1. Results of water quality survey in public water areas The number of observation points, which was about 1,000 in 1971, exceeded 5,000 in 1986, 15 years later, and observations have been continued at points of less than 6,000 since then. In terms of secular variation of BOD values, 3 or more accounted for half (1971), but in 1976, 2 or less accounted for half, and recently, 2 or less accounted for about 80% (2018). The number of points 1 to 4 has not changed, the number of points 4 or more has decreased, and the number of points 1 or less has increased to about half of the total.
2. National simultaneous survey of familiar water environment In 2004, when the survey started, there were about 2,500 points, but in 2005 it was about 5,000 points, and after that it changed to around 6,000 points, but in 2018 it was about 7,000 points. About half have a COD of 4 or less. In 2020, the number of observation points decreased due to the influence of the new virus, and the observation results of Hosei University were not included in the total, so the number was 3,802, which was the second lowest after the first time in 2004. We analyzed the survey results of Hosei University at 2,000 points. The results were observed mainly in the coastal areas and in the terminal areas of rivers of various scales nationwide, so they are suitable for examining regional differences in rivers nationwide, and can be compared with previous observation results. Further detailed analysis is expected in the future.
3. Water quality before 1971 Although there are research results by pioneering Kobayashi (1961), it is difficult to obtain systematically observed water quality data. It was not possible, and the difficulty of clarifying the past water quality was highlighted.
4. Nearest water quality From 2017 to 2021, he organized his data surveyed at more than 1,500 locations nationwide every year and clarified the current state of river water quality in recent years.
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Masato I. Nodzu, Yuta Matsuzaki, Hiroshi Matsuyama, Jun Matsumoto
Session ID: P010
Published: 2022
Released on J-STAGE: October 05, 2022
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Supplementary material
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Yoshio Tagami, Gaston R. Demarée
Session ID: P009
Published: 2022
Released on J-STAGE: October 05, 2022
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The mid-19th century was a period of great climate change. This time is about the Ansei era (1855-1860). There have been major changes both inside and outside Japan.
At the same time, detailed meteorological observation records will be recorded. In addition to the records of various hans, many public and private weather records will be recorded in the north and south.
For example, La Sibylle (French ship) traveled northward in the Pacific Ocean and the Sea of Japan to reach the Sea of Okhotsk, and left a meteorological observation record. Observer Louis Furet has also stayed in Naha for a long time to keep meteorological records.
During this Ansei era, detailed weather records were recorded in institutions such as the Shogunate in Hokkaido and in personal diaries in Okinawa. Therefore, climate change can be restored over a wider area.
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the case of Tokyo
Yoshiki Wakabayashi
Session ID: P030
Published: 2022
Released on J-STAGE: October 05, 2022
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Status reports and issues based on qualitative surveys
Yoshiki Kakinuma, Mariko Ikeda, Misaki Kumagai
Session ID: 542
Published: 2022
Released on J-STAGE: October 05, 2022
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Takeshi KAWAMURA, Yuichi HASHIMOTO
Session ID: 536
Published: 2022
Released on J-STAGE: October 05, 2022
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Takumi SATO, Yoshihiko KARIYA, Sadao TAKAOKA
Session ID: P005
Published: 2022
Released on J-STAGE: October 05, 2022
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Chihiro Ito
Session ID: P021
Published: 2022
Released on J-STAGE: October 05, 2022
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Hinako SUZUKI, Hisahiko KUBO
Session ID: 243
Published: 2022
Released on J-STAGE: October 05, 2022
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Rakesh Teja Konduru, Masato I Nodzu, Jun Matsumoto
Session ID: 215
Published: 2022
Released on J-STAGE: October 05, 2022
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Yakushima Island (south of Kagoshima) is characterized by its diverse natural environment, flora, and fauna, primarily related to its climate. Having a good understanding of the local climate in Yakushima is beneficial in preventing disasters during storm season or during times of heavy rainfall. As a result of this island's location, it is subject to the direct impact of the Asian monsoon, Baiu Front, extratropical cyclones, and typhoons, which increases the risk of flooding and landslides associated with precipitation. With the aid of a satellite dataset, we investigated the seasonal variation in rainfall on Yakushima Island. In addition, we investigated their relationship with the seasonal change in the surface wind and Kuroshio current.
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Kuranoshin Kato, Koshi Nagayasu, Chihiro Miyake, Kazuo Otani
Session ID: 218
Published: 2022
Released on J-STAGE: October 05, 2022
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the case of Tokushima city
Teruo HATAKEYAMA
Session ID: P029
Published: 2022
Released on J-STAGE: October 05, 2022
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KIYOSHI SAIJO, HISAO ABE, MAKI SUZUKI
Session ID: P018
Published: 2022
Released on J-STAGE: October 05, 2022
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Hisayuki Kubota, Jun Matsumoto, Ikumi Akasaka, Togo Tsukahara, Atsushi ...
Session ID: 217
Published: 2022
Released on J-STAGE: October 05, 2022
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Kota KAMIJIKI
Session ID: 540
Published: 2022
Released on J-STAGE: October 05, 2022
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Yoshiharu Kamiya
Session ID: 316
Published: 2022
Released on J-STAGE: October 05, 2022
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Yuya Takane, Ko Nakajima, Yukihiro Kikegawa
Session ID: 212
Published: 2022
Released on J-STAGE: October 05, 2022
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Ayumu MATSUI, Seishiro SAKITA, Masato SAGAWA
Session ID: P024
Published: 2022
Released on J-STAGE: October 05, 2022
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Case of Wakasa Area, Fukui Prefecture
Takaya IWATANI
Session ID: 537
Published: 2022
Released on J-STAGE: October 05, 2022
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The purpose of this study is to clarify the transformation of the transportation system in relation to changes in transportation administration and the responses of local residents, local communities, and transportation operators, focusing on coastal areas with declining populations. Stakeholders in the transportation system influence each other. It is necessary to clarify what interrelationships these have, what balance of power they have, and how they have worked together.
As a case study, we chose the Wakasa region of Fukui Prefecture.
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Koseki Daiju
Session ID: 432
Published: 2022
Released on J-STAGE: October 05, 2022
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Yoshihiro Iijima
Session ID: 216
Published: 2022
Released on J-STAGE: October 05, 2022
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Ting Wang, Teiji Watanabe
Session ID: 232
Published: 2022
Released on J-STAGE: October 05, 2022
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Daisetsuzan National Park is in the center of Hokkaido, Japan. There are twelve designated campsites in the alpine areas. Camping is prohibited outside of the designated campsites. However, the use level and current condition of most campsites are unknown. The objectives of this study are 1) to detect bare grounds and informal trails in 12 campsites by using georeferenced aerial photographs 2017, and 2) to analyze the sustainability of three representative campsites (Kuro-dake, Hakuun-dake, and Ura-Asahi) based on their use levels. In this study, lapse cameras were used to monitor use at the campsites (July 12–September 25, 2019).
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Preliminary report based on the questionnaire survey to Amami city officials
Masaki IWAFUNE, Koji Abe
Session ID: 241
Published: 2022
Released on J-STAGE: October 05, 2022
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Evacuation behavior after tsunami warning by tidal surge following massive Tonga eruption - Consideration from the questionnaire survey to Amami city officials -
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Yuuki NEMOTO, Muneyuki NATSUME
Session ID: P027
Published: 2022
Released on J-STAGE: October 05, 2022
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Jiyeon SHIN, Yuhei NOMURA, Hongyang SONG, Satoko HIRONO, Chenghung WU
Session ID: 534
Published: 2022
Released on J-STAGE: October 05, 2022
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Shiro Koike
Session ID: 636
Published: 2022
Released on J-STAGE: October 05, 2022
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Shintaro Takanami
Session ID: P003
Published: 2022
Released on J-STAGE: October 05, 2022
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Toward a change in the consciousness of the local community
toshifumi shiwaku, Yuuko Yamaguchi, Masafumi Yokemoto
Session ID: 516
Published: 2022
Released on J-STAGE: October 05, 2022
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Supplementary material
Currently, the "Mizushima Stay-type Environmental Learning Consortium" (Secretariat: The Foundation for Environmental Rehabilitation and Redevelopment of Mizushima) and Okayama Prefectural Kurashiki Kojoike High School are collaborating, and, conducting biological and marine debris research activities in the field of Kojima Kyou coast, Kurashiki City. That’s activities as part of the regional problem-solving class. In this report, we will report the results of the marine debris (microplastic) survey (March 2021 to March 2022), change the consciousness of high school students through the survey, and consider the effects of being involved with the community.
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