Rural Japan Revisited: Autonomy and Heteronomy in the Peripheries

VSJF 2017 Annual Conference @Department of East Asian Studies, University of Vienna | October 31-November 02, 2017

 About the Conference

This conference focused on the challenges Japanese peripheries and their communities are facing under the threats of depopulation, political power concentration and economic globalization. It was hosted by the University of Vienna and the Austrian Economic Chambers. The three day program started with an expert meeting to stimulate a dialogue exchange between scholars from Japan or Japanese Studies and business representatives that are providing services and goods for regional economies in Austria and internationally. On the second and third day, the topic was addressed from a more academic perspective.

By putting Japan’s experience with rural development onto the agenda of social analysis, we intended to initiate a significant perspective shift within social scientific research on Japan in general and within the debate on regional Japan in particular. We called upon “revisiting rural Japan” now for two major reasons: First, rural Japan, which has been the main object of empirical research on Japanese society during the formation period of modern Japanese studies, has come to be largely neglected by social scientists since the 1980s. Second, contemporary debates on the conditions of rural Japan are usually prioritizing an urban reading of the countryside and ignoring local interpretations of problems, needs, interests and resources. We think that revisiting rural Japan helps understand the future challenges some cities in Japan and many rural areas in other OECD countries are going to face under the impact of population decline, de-industrialization and decreasing infrastructure investment.

Specifically, the conference was devoted to highlight the tensions between autonomy and heteronomy in rural areas. Japan’s regions are dependent on central fiscal spending to a degree that the scope of decision-making at the local level has been rendered as “30 percent political autonomy”. In addition, many salient problems in the peripheries have been caused by decisions and processes initiated at national and global centers, such as the liberalization of trade in agrarian goods or pollution of soil and irrigation by industrial pollution from neighboring areas or even abroad. While heteronomy characterizes regional politics to a large degree, there is ample evidence to argue that autonomy is an important prerequisite for rural areas to realize their full potentials and to live up to the increasing amount of expectations they are confronted with, including the preservation of landscapes, cultural traditions, environmental protection and contributions to improving Japan’s food self-sufficiency rate. Policy makers in the EU as well as elsewhere have realized the limitations, if not futility, of a universal strategy that fits all cases, thereby acknowledging the significance of local knowledge, resources and practices.

Dipl.-Geograph PD Dr. Ralph Lützeler

 Dates

  • Tuesday, Oktober 31st, 2017, 12:30~9:30pm
  • Wednesday, November 1st 2017, 08:30am~10:00pm
  • Thursday, November 2nd 2017, 08:30am~02:00pm

 Conference Programme

Day 1 – Tuesday, October 31st, 2017

  • 12:30pm: Registration
  • 01:30pm: Welcome adresses
  • 01:50pm: Introduction: Rural Japan revisited
    Ralph Lützeler and Wolfram Manzenreiter
  • 02:00~3:30pm: Panel 1:  The power of regions: Strategies of revitalisation and sustainability
    • Chairs: Daniel Kremers and Susanne Brucksch
    • Enablers and barriers of climate mitigation policies in Japan: lessons from two local communities
      Daniel Kremers
    • Strategies of revitalisation: Regional matching-hubs for manufacturing, medical device companies and hospitals for enhancing future industries
      Susanne Brucksch
    • Technology in mountain farming: Utilising drones to strengthening local agricultural business
      Tomoyuki Furutani 
    • Has the island lure reached Japan? Remote islands between tourism boom, new residents and fatal depopulation
      Carolin Funck
  • 03:00~04:30pm: Networking and coffee break
  • 04:30~04:45pm: Input statement: Internet of trees
    Ingomar Lochschmidt
  • 04:45~05:30pm: Panel discussion: Innovation for Japanese agriculture and forestry – opportunities and potentials
    • Chair: Ingomar Lochschmidt
    • Discussants Florian Glatt, Hanno Jentzsch, Martin Nöbauer, and Reinhard Wolf
  • 06:00pm: Departure to the residence of the Japanese ambassador (from tram station “Mayerhofgasse”)
  • 07:30~09:30pm: Reception by the Japanese Ambassador in Austria (Residence of the Japanese Ambassador, 1190 Vienna)

Day 2 – Wednesday, November 1st, 2017

  • 8:30~9:30am: Panel 2: Regional policy approaches (re)considered
    • Chair: Wolfram Manzenreiter
    • Rural shrinking in Japan and Germany: Similarities, dissimilarities and lessons to learn
      Volker Elis
    • System dynamics analysis on rural areas policy
      Shinya Ueno 
  • 9:30~10:30am: Coffee break
  • 10:00~11:30am: Panel 3: Rural communities readjusting
    • Chair: Ingrid Getreuer-Kargl
    • Shrinking communities and the question of the commons
      Johannes Harumi Wilhelm
    • Rural social capital research studies on land improvement projects
      Toshiki Ōsuga 
    • Akiya in regional Japan: The complex social relations of empty houses
      William W. Kelly
  • 11:30am~01:00pm: Lunch break
  • 01:00~02:30pm: Panel 4: Against the current: Migration to rural areas
    • Chair: Ralph Lützeler
    • Peripheral areas in contemporary Japan and migration to them
      Yoshitaka Ishikawa 
    • I-turn migration as a means to rural revitalization? The case of Ama
      Ludgera Lewerich
    • Entrepreneurs and the pursuit of existential meaning in rural Japan
      John W. Traphagan
  • 02:30~03:30pm: Coffee break & poster presentation
  • 03:30~06:00pm: Section meetings (University Campus, Court 2.4)
  • 07:00~10:00pm: Reception by the mayor of the city of Vienna (City Hall, 1010 Vienna) including presentation of the VSJF-Award 2017

Day 3 – Thursday, November 2nd, 2017

  • 8:30~9:45am: Early morning screening65+ Being Old in Rural Japan (Documentary, A 2014, 35 min., jp. with English subtitles) and discussion with producers Isabelle Prochaska and Pia Kieninger
  • 8:30~9:45am: (Parallel event) VSJF General Meeting
  • 9:45~10:00am: Coffee break
  • 10:00~11:30am: Panel 5: Institutional change in Japan’s peripheries: Rural areas between decentralization, deregulation, and dependency
    • Chair: Sonja Ganseforth
    • Process or perish? Family farms, agricultural cooperatives, and the "6th industry"
      Hanno Jentzsch
    • Who governs community farming for agricultural efficiency and residential welfare? A critical application of governance theory
      Haruhiko Iba and Kiyohiko Sakamoto 
    • Picking persimmons before the monkey does: Volunteer tourism and crop protection in rural Japan
      John Knight
  • 11:30am~12:00pm: Coffee break
  • 12:00~01:30pm: Panel 6: Social Relations and Well-being in Rural Japan
    • Chair: Barbara Holthus
    • The family, new actors, and social relations in contemporary rural Japan
      Tolga Öszen
    • The precarious balance between old residents and new settlers in Japan’s rural community: Inclusion or novel development?
      Motoki Akitsu and Kei Otsuki 
    • Kyoko’s assemblage: Escaping ‘futsū no nihonjin’ in Hokkaidō
      Paul Hansen
  • 01:30~02:00 Uhr: Concluding discussion and closing remarks

 Contributors & Abstracts

  • Title: The precarious balance between old residents and new settlers in Japan’s rural community: Inclusion or novel development?
  • Abstract:

    One of the most crucial challenges facing Japan’s rural areas is depopulation and aging. Central and local government policies have struggled to attract to depopulated rural areas not only new settlers with an urban origin, but also U-turners who out-migrated in their youth. While the narrative of urban-to-rural migration has a long history in the modernization era in Japan, the current trend in which settlers pursue new lifestyles based on environmental consciousness and healthy living only started in the middle of the 1980s. The image of rural livelihoods held by many rural in-migrants, which is influenced by various idyllic media representations, is substantially different from that of older residents. This divergence in perception can manifest in some cases into open conflict, or can simmer for a long time under a superficial veneer of mutual understanding. In this paper, we introduce and analyze how this precarious balance is achieved with reference to a case study in Ayabe City, Kyōto Prefecture. The conclusions we present are important for predicting whether new settlers can readily be integrated into the existing rural context or produce novel and separate forms of social development.

  • Affiliation: Kyōto University, Japan
  • Title: Strategies of revitalisation: Regional matching-hubs for medical device manufacturers and hospitals in Japan
  • Abstract:

    Despite the demographic shift and being one of the largest markets for medical devices, there has been a drop in innovation activities over the past two decades and, nowadays, most appliances are imported to Japan. A substantial shift has taken place rather recently under the distinctive leadership of Prime Minister Abe by integrating biomedical engineering into the scheme of the Japan Revitalisation Strategy (Abenomics) to reinforce “industrial competitiveness in the areas of pharmaceuticals and medical devices” (METI 2016). Among others, the strategy aims at “renkei” ni yoru “jitsuyōka” (market cultivation through partnerships) between medical centers, academia and manufacturing companies. Particularly, regional authorities and municipalities promote R&D activities by offering subsidies to small and medium-size enterprises (SME) and organizing matching-hubs for ikō renkei (med-tech partnership) activities such as in Tōkyō, Yokohama, Kōbe, Fukushima and many other prefectures. Their defined goal hereby is to contribute to the revitalization of their very region with varying degrees of success.

  • Affiliation: German Institute for Japanese Studies, Tokyo, Japan
  • Title: Rural shrinking in Japan and Germany: Similarities, dissimilarities and lessons to learn
  • Abstract:

    Internationally comparative research on rural shrinking is still in its infancy, which is a surprising fact, as demographic and economic decline is beginning to affect the non-urban regions of an ever increasing number of developed states. This paper starts with the findings of the first comprehensive treatise comparing the current situation in shrinking municipalities in two different countries (WIRTH et al. 2006) to suggest what decision-makers and actors in Germany and Japan can learn from each other with regard to policies and coping strategies tackling the effect of an aging and decreasing population and economic structural change. The paper argues that the phenomenon of rural shrinking is comparable between countries on an international scale regardless of cultural differences and differences in the spatial and administrative structure.
    The first part of this paper consists of an introduction into the principal regional policy approaches on the national level to cope with the effects of demographic change including neoliberal austerity policy, the demand-orientated Keynesian approach, endogenous development measures, and alternative concepts focusing on deceleration and well-being beyond the dominant growth paradigm. In the second part the question is discussed why some strategies are successfully applied on the regional and local level in one country while they failed or were not even considered in the other. The presentation ends with some thoughts on how the prevalent discourses have an impact on the choice of regional development tools in the two countries.

  • Affiliation: University of Cologne, Germany
  • Title: Has the island lure reached Japan? Remote islands between tourism boom, new residents and fatal depopulation
  • Abstract:

    Most of Japan’s smaller islands face severe problems of depopulation and aging. However, in recent years some of them have managed to turn the tide and attract not only tourists but also new residents. A range of factors has created this new current, among them “new” forms of tourism like ecotourism and art tourism, active promotion by municipalities, a change in the conception of rural life, and the new media that allow even residents of remote islands to connect and sell their products and services around Japan. Municipal merger has played an important role, because islands that kept their administrative autonomy have a better chance to develop unique policies. On the other hand, SNS and new media have given tourists and residents a new kind of very heterogenic power. This paper will analyze how islands try to ride the new vogue while at the same time create distinct images and policies to become “the” chosen island by tourists and potential migrants.

  • Affiliation: Hiroshima University, Japan
  • Title: Technology in mountain farming: Utilizing drones to strengthening local agricultural business
  • Abstract:

    Precision agriculture by using robotics, AI, drones and big data is one of the crucial topics in Japan. As the number of farmers will further decrease in the next several decades, it becomes more important to increase productivity in agriculture. In this study, I will introduce examples of precision agriculture: Drones with multi-spectrum sensors and near-infrared camera are employed for monitoring crops, sake rice and beer hops.

  • Affiliation: Keiō University, Tokyo, Japan
  • Title: Kyoko’s assemblage: Escaping ‘futsū no nihonjin’ in Hokkaidō
  • Abstract:

    Drawing on the history and ethnographic present of the Tokachi region of Hokkaidō and its combination of wild and domestic space, this presentation addresses the history of Hokkaidō as a ‘frontier’. It argues that rural Tokachi is a space wherein exile and escape have long been prominent themes, and further, that such marginalized rural spaces continue to attract individualistic individuals seeking a way out of Japanese social expectations but not necessarily a departure from their Japanese identity. The area is historically a place of self-making for Japanese subjects and this paper details an “assemblage“ of individual / individuated relations contingent and ever-circulating amongst newcomers to a small town in northern Tokachi. To understand their escape from Honshū, it suggests that typical social construction indices (gender, age, class and so on) are often of less use in understanding relations and motivations than harder to place and trace conditions such as charisma, luck or affect.

  • Affiliation: Hokkaidō University, Japan
  • Title: Who governs community farming for agricultural efficiency and residential welfare? A critical application of governance theory
  • Abstract:

    As functions of self-governance bodies in organizing local faming have waned, community actions to sustain regional agriculture, such as maintenance of irrigation facilities, have become desperately challenging in rural Japan. This is especially the case in areas where land consolidation into large-scale leading farm entities has advanced, since many small-scale landholders lease out lands and are detached from farming per se. The question revolving around how to re-build community governance for farming (CGF) has become vitally important. By critically employing insights from corporate governance theory and community governance theory, we conceptualize CGF both as concerning economic efficiency and as pertaining to trust and ethics in relationships between leading farming entities and other community members, including farm households who lease out lands. Following case studies based on the CGF concept, our paper concludes with remaining challenges in CGF and relevance of broader politico-economic changes surrounding rural areas.

  • Affiliation: Kyōto University, Japan
  • Title: Peripheral areas in contemporary Japan and migration to them
  • Abstract:

    In relation to the beginning of Japan’s total population decline, the problem of regional disparity has been attracting a great deal of attention in the country. Net in-migration to the Tokyo Metropolitan Area is still continuing. Meanwhile, many peripheral prefectures have been suffering serious problems related to depopulation, largely due to an aging population and net out-migration of young adults over the course of many years. The population projection of the National Institute of Population and Social Security Research forecasts an ever-deteriorating situation in peripheral Japan. Within this context, we need to examine the possible contribution of retirement or welfare migration of persons in their late 50s and older to peripheral areas. This is because persons of these age groups have actually left the major metropolitan areas for peripheral areas. Recent policies of the national or local governments developed to handle such migration are also discussed.

  • Affiliation: Kyōto University, Japan
  • Title: Process or perish? Family farms, agricultural cooperatives, and the “6th industry”
  • Abstract:

    This paper analyzes the “6th industry” – i.e. business models that link agricultural production with processing and/or marketing and tourism – as a focal point of gradual institutional change in the country’s agricultural support and protection regime. The Abe administration heavily promotes the so-called “6th industry” as a means to revive Japan’s struggling rural peripheries. Already long before this policy trend gained momentum, the cooperative organization JA – a key player in Japan’s postwar agricultural sector – has been involved in linking production, processing and marketing of agricultural products. However, the current promotion of the 6th industry stands in the context of a gradual deregulation and corporatization of the agricultural sector. It entails contract farming between family farms and retail, the incorporation of family farms, and the direct access of general corporations to farmland – all of which challenges the position of the cooperatives. JA is thus struggling to enforce “cooperative” interpretations of the “6th industry” in order to retain its stake in the changing farm sector.

  • Affiliation: German Institute for Japanese Studies, Tokyo, Japan
  • Title: Akiya in regional Japan: The complex social relations of empty houses
  • Abstract:

    One of the collateral problems of Japan's demographic decline and economic stasis is that of akiya 空家, “empty houses” that have been abandoned, often following an elder's death with inheritors who have moved away. There are official estimates of more than 8 million at present (about 1 in 8 houses), estimated to reach 1 in 3 houses by 2033. They pose a fire danger and attract pests in a nucleated rural settlement and can collapse onto the closely-adjacent houses. People generally take the term at face value – an empty and abandoned house, but in fact property laws, zoning practices, and inheritance laws in Japan render akiya quite socially alive as well as physically present in rural Japan. At least that is the anthropological perspective I pursue in this paper. Akiya are material sites of highly contested, inter-twined social relations among families, neighbors, and local authorities. Using fieldwork evidence from Yamagata Prefecture, I want to show the ways that akiya reconfigure complex settlement relations and discomfort municipal policies and politics.

  • Affiliation: Yale University, New Haven, USA
  • Title: Picking persimmons before the monkey does: Volunteer tourism and crop protection in rural Japan
  • Abstract:

    This paper describes the phenomenon of persimmon-picking by tourists in rural Japan. In a period of widespread monkey crop-raiding, some Japanese villages attempt to tackle the problem by appealing to urbanites to come and help harvest persimmon fruit from village trees, with the promise that they can keep part of what they harvest and have a holiday in the countryside in what amounts to a form of volunteer tourism. Bright orange persimmons are highly appealing to monkeys in late autumn, and in recent decades have become available in large quantities as villages depopulate and fewer people are around to harvest the fruit. This is the background to outreach schemes in which city families come to the village to assist in bringing the fruit crop in. This paper describes these persimmon-picking initiatives, examines their impact on the crop-raiding problem, evaluates their prospects for boosting tourism, and compares them with other initiatives in Japan that connect tourism with the wildlife problem.

  • Affiliation: Queen’s University, Belfast, UK
  • Title: Enablers and barriers of climate mitigation policies in Japan: Lessons from two local communities
  • Abstract:

    Global warming is an issue that requires fast adaption in all aspects of society and economy, including the local and municipal level. Producing renewable energies is at the core of climate mitigation and the rural areas of Japan are abundant in resources that can be utilized. However, capital, knowledge and the political autonomy to plan and act are limited and unequally distributed across Japan. Centralized economic policies and municipal mergers have in many cases undermined the capacity of local communities to become active. The challenges and efforts of local climate action will be discussed based on two case studies from the prefectures of Fukuoka and Ishikawa.

  • Affiliation: German Institute for Japanese Studies, Tokyo, Japan
  • Title: I-turn migration as a means to rural revitalization? The case of Ama
  • Abstract:

    Over the decades many attempts have been made to revitalize Japan’s aging and shrinking rural regions. In recent years, urban-to-rural migration, coined I-turn (for people newly moving to the countryside) and U-turn (for people returning to their birthplace), has been portrayed by media and government as a possible solution to boost rural economy and demography. Ama, a small town on a remote island in Shimane Prefecture, has gained much attention as an apparently successful example of rural revitalization through I-turn migration. In my paper I will outline Ama’s revitalization project and, drawing on empirical data gathered there in 2016, examine the I-turners’ point of view on urban-to-rural migration. I will elaborate on what draws young people to a remote island and discuss whether revitalization through I-turn might be possible and sustainable. Thus, I will shed light both on the current state of rural revitalization and current lifestyle patterns of young people in Japan.

  • Affiliation: Heinrich-Heine-University, Düsseldorf, Germany
  • Title: Rural social capital research studies on land improvement projects
  • Abstract:

    In Japan, land improvement projects are conducted to develop the farmland and irrigation facilities to enhance the agricultural productivity with the agreement of rural communities. In this paper, I quantitatively evaluated the influence of land improvement projects upon rural SC (social capital) by principal components analysis based on a questionaries’ survey taken in 2006 and 2016. As the rural SC is known to be consisting of two types, collaboration type and mutual aid type (Tanoi 2007), a comparative analysis of the two SC types is conducted focusing on the types of land improvement projects (i.e. irrigation, land consolidation, etc.) and wheth¬er land improvement projects are conducted or not.

  • Affiliation: Japanese Institute of Irrigation and Drainage, Tokyo, Japan
  • Title: The family, new actors, and social relations in contemporary rural Japan
  • Abstract:

    In recent years, the contributions of regional actors such as older people and rural women in rural communities have been discussed. Most of those discussions focus on geographical borders while discussing the community’s present and future. Based on this understanding, whether someone is a member of the village is another evaluation point for community issues. Besides, most discussions regarding the sustainability of rural communities focus on agricultural production, which is conducted by local residents. However, because the present-day Japanese rural community is a mobilized society, the above-mentioned essential points mentioned before no longer completely reflect an actors’ social relations and contributions. Moreover, the current framework does not cover all actors who may tangibly and effectively contribute to the rural community, such as second and third generation kin living in urban areas (tashutsushi) or newcomers to the community. Therefore, we first focus on reconsidering terms such as family, social relations, and kinship by changing the current framework from an understanding based on “physical border” to a relation-based mobilized family-community understanding. Second, after reorganizing the framework, we introduce actors such as ta-shutsushi, newcomers from urban areas (termed the “I-turn” population), foreign population such as spouses, and agricultural trainees, who have not been considered previously as actors in the community’s future from the viewpoint of social relations and production capability.

  • Affiliation: Çanakkale Onsekiz Mart University, Turkey
  • Title: Entrepreneurs and the pursuit of existential meaning in rural Japan
  • Abstract:

    This paper explores the emergence of a fairly recent phenomenon in northern rural Japan – the return migration of residents for the purpose of starting small businesses. I discuss the cases of individuals who, after spending several years working in corporate Japan and living in a major city, decided to leave their employment to start businesses in a small town in Tōhoku. My findings suggest that a key motivating factor in starting these businesses is not a desire to gain wealth. Instead, it is to find fulfillment and existential meaning in life. In this sense, the risk associated with entrepreneurial activity among my informants centers not on financial risk, but on personal risk associated with taking chances with one’s future and social relationships in order to move and start a business, particularly in an area that is rapidly depopulating.

  • Affiliation: University of Texas in Austin, USA
  • Title: System dynamics analysis on rural areas policy
  • Abstract:

    The purpose of this study is to clarify the structural mechanism of complex problems of rural areas by system dynamics analysis. Many kinds of measures have been implemented as policies, such as depopulation policy, job opportunity creation, maintaining of medical and welfare services, and keeping community function by community building activities. Simultaneously, the phenomenon of under-population in rural areas has been promoted by sup-porting excess concentration of population and industrial activities in metropolitan areas. Problems of mountainous areas are ill-structured; generally policies to counteract a problem may cause another type of problem. In this analysis the complex structure of problems is represented as a causal loop diagram. It shows a system with all its constituent components and their interactions with stocks, flows, feedback loops and time delays. It becomes possible to ascertain a system’s behavior over a certain time period with this simulation. The result indicates the effectiveness of policies for prevention purposes and countermeasure policies separately.

  • Affiliation: Kumamoto University, Japan
  • Title: Shrinking communities and the question of the commons
  • Abstract:

    The commons, a term derived from the English legal term for common land, denote shared resources held in common by members of a given group or, simply, stakeholders. The term became popular since Garret Hardin‘s influential paper on The Tragedy of the Commons (1968) that triggered a long and productive discourse on human ecology and governance issues. In the case of common use-rights – such as coastal fisheries resources and grassland pastures – the stakeholders share a set of rights and responsibilities under a specific regime. The presentation focuses on communities in which the regimes governing the commons experienced change due to gradual socioeconomic reasons or sudden external triggers such as natural disasters. It is argued that a decreased number of stakeholders may, on one hand, improve the situation of common use-rights systems concerning resource pressure, yet, on the other hand, may also lead to the breakdown of the commons depending on external factors affecting the setting and framework of the system or an accelerated level of depopulation causing the breakdown of a community itself. Therefore, the commons can also be seen as an indicator for a ‘community’s state of health’ meaning a proper set of rules, rights, and responsibilities maintained by the community members.

  • Affiliation: Keiō University, Japan

 List of Participants in Alphabetical Order

  • Motoki Akitsu | Kyōto University, Japan
  • Susanne Brucksch | German Institute for Japanese Studies, Tokyo, Japan
  • Volker Elis | University of Cologne, Germany
  • Carolin Funck | Hiroshima University, Japan
  • Tomoyuki Furutani | Keiō University, Tokyo, Japan
  • Sonja Ganseforth | German Institute for Japanese Studies, Tokyo, Japan
  • Ingrid Getreuer-Kargl | University of Vienna, Austria
  • Florian Glatt | Wodzynski e.U.
  • Paul Hansen | Hokkaidō University, Sapporo, Japan
  • Barbara Holthus | University of Vienna, Austria
  • Haruhiko Iba | Kyōto University, Japan
  • Yoshitaka Ishikawa | Kyōto University, Japan
  • Hanno Jentzsch | German Institute for Japanese Studies, Tokyo, Japan
  • William W. Kelly | Yale University, New Haven, USA
  • John Knight | Queen’s University, Belfast, UK
  • Daniel Kremers | German Institute for Japanese Studies, Tokyo, Japan
  • Ludgera Lewerich | Heinrich-Heine-University, Düsseldorf, Germany
  • Ingomar Lochschmidt | ADVANTAGE AUSTRIA, Tokyo, Japan
  • Ralph Lützeler | University of Vienna, Austria
  • Wolfram Manzenreiter | University of Vienna, Austria
  • Martin Nöbauer | Federal Ministry of Agriculture, Forestry, Environment, and Water Management, Vienna, Austria
  • Toshiki Ōsuga | Japanese Institute of Irrigation and Drainage, Tokyo, Japan
  • Tolga Öszen | Çanakkale Onsekiz Mart University, Turkey
  • Kei Otsuki | Kyōto University, Japan
  • Kiyohiko Sakamoto | Kyōto University, Japan
  • John W. Traphagan | University of Texas in Austin, USA
  • Shinya Ueno | Kumamoto University, Japan
  • Johannes Harumi Wilhelm | Keiō University, Tokyo, Japan
  • Reinhard Wolf | RWA Raiffeisen Ware Austria AG