Research & reports

東京都都市整備局 · 東京都都市整備局 · Japan

This official page from the Tokyo Metropolitan Bureau of Urban Development (last updated May 26, 2026) explains Tokyo's productive green zone (seisan ryokuchi) system: designation requires a plot of at least 500 sqm (reducible to 300 sqm by municipal ordinance, with contiguous plots eligible if each is at least 100 sqm), imposes a 30-year farming obligation, and grants tax benefits (agricultural-rate property tax and inheritance tax deferral). It also explains that because zones designated in 1992 under the revised law reached the 30-year mark in 2022, the "specified productive green zone" system (created by a 2017 law amendment) allows landowners to extend the tax benefits and buyback-request window by another 10 years.

Shuang Gan, Wanglin Yan · Applied Geography · Japan

A multi-scale analytical framework examined changing relationships between urban expansion and farmland protection during the transition from population growth to decline, applied to the Odawara region of Japan. Since population decline began in 2010, conflicts between urban expansion and farmland protection have remained concentrated along the urban-agricultural fringe, with farmland loss and fragmentation continuing despite reduced development pressure, and population change was found to indirectly cause paddy field loss via built-up land expansion with a five-year lag. The main driver of farmland loss has shifted from urban development to agriculture-related loss driven by labor shortages and low farming efficiency, and agricultural promotion areas moderately retain paddy fields but offer only limited protection against fragmentation.

Akiko Iida, Toru Terada, Kazuaki Tsuchiya, Tadashi Yamaguchi, Makoto Yokohari · Urban forestry & urban greening · Japan

Using Tokyo — where urban and agricultural land use have long been intermixed — as a case study, mailed questionnaires and in-person semi-structured interviews with urban farmers examined how community-scale composting of urban-forest green waste is integrated into commercial urban agriculture (2024, Japan). About one-third of professional urban farmers still produced compost, mainly from leaf litter, to improve soil quality, and had adapted to urbanization by sourcing leaf litter beyond their own woodlands from neighboring urban forests within a few kilometers, including parks, schools, and shrines. While urbanization has drastically altered the physical landscape, farmers have carried this intangible composting system forward for hundreds of years by retrofitting it, though the study found farmers are motivated by economic rather than environmental reasons. The authors conclude that decentralized composting works effectively in commercial urban agriculture where waste supply and demand sites are geographically close, and call for further research on scaling up waste recycling through urban agriculture.

Mariia Ermilova, Mitsunari Terada, Isami Kinoshita · · Japan (Tokyo)

From March 2016 to 2021, a five-year action research project was conducted in Matsudo, a Tokyo suburb, Japan, by two PhD students from Chiba University in collaboration with a local neighborhood association. Through cultivating culturally significant plants like herbs, vegetables, and flowers, and utilizing them for crafts and cosmetics, local women, the elderly, and children developed new skills, gained financial support, and social confidence. These activities expanded from edible landscape cultivation in planters to the creation of eight gardens, providing alternative forms of community participation.

· JAcom 農業協同組合新聞（一般社団法人農協協会） · Japan

A December 2021 survey by Japan's Ministry of Land, Infrastructure, Transport and Tourism found that among 199 municipalities with productive green zones (seisan ryokuchi) designated in 1992 (total 9,412 ha), 86% (8,048 ha) had already been, or were expected to be, redesignated as "specified productive green zones," which extend agricultural preservation and tax benefits beyond the original 30-year period. 7% of landowners had no intention to redesignate, and another 7% were undecided. Tokyo had the highest redesignation rate at 92% (2,227 ha), followed by Saitama (85%), Chiba (87%), Kanagawa (87%), Aichi (75%), Kyoto (87%), Osaka (85%), Hyogo (87%), and Nara (87%).

Shingo YOSHIDA · Institutional Repositories DataBase (IRDB) · Japan

Against a backdrop in which revision of the Productive Green Land Act and a new law for leasing urban farmland enabled existing farmers to expand and new entrants to begin farming in metropolitan areas, this study used survey data from 317 farms in cities of the Tokyo metropolitan area, plus semi-structured interviews at two fruit farms in Ichikawa City, Chiba Prefecture, to examine the significance and characteristics of introducing regular employees on peri-urban farms. The survey showed that the number of regular employees varied by farm developmental stage, distinguishing farms with only one employee from those with two or more in terms of management capability and social networking; interviews indicated that even among similarly sized farms, differences in farm objectives and family-management thinking affected the presumed role of regular employees and future human resource plans.

Ikuko Omi, Tôru Nakayama · Journal of the City Planning Institute of Japan · Japan

This study documents the five-year process of establishing and developing civil agriculture organizations to enable suburban residents to participate in urban agriculture. It identifies various conditions necessary for success, including initial investment, cultivation training, farmland conditions, and sales. The study also clarifies the relationship with local government and farmers, and notes that members began developing their own agricultural techniques once the organization's operations stabilized, revealing diverse roles and issues within these groups.

Shingo YOSHIDA · Institutional Repositories DataBase (IRDB) · Japan

This study examined the interaction between farm development and diversification in 18 peri-urban farms in Japan's Kanto region. Farm structural diversification was categorized into four types: highly diversified, complementary enterprise, search and selection, and non-diversified. Farms exhibiting entrepreneurship, management skills, and active social networks achieved development across all categories. Diversification in highly diversified and search & selection types interacted with the internal farm environment, but had little impact on management in complementary enterprise types.

· · Japan

This account of Tokyo urban farming contrasts Brooklyn Grange, a roughly 1-hectare rooftop farm in New York that produced 23 tons of organic produce in 2014, with Taiken Noen ('hands-on farming') in Tokyo's Nerima ward, where urban residents cultivate vegetables under instruction from local farmers on about 1,300 plots across 12 farms covering roughly 5 hectares combined, a practice the text describes as continuing to grow in popularity.

知弘 岡田, 大介 小山 · Institutional Repositories DataBase (IRDB) · Japan

This paper is part of a special issue on the "Possibility and problem of 'coexistence of agriculture and housing' in suburban agricultural region of big city," presenting an overview of the urbanization process and contemporary challenges of town planning in the Kuga-Hatsukashi area of Fushimi Ward, Kyoto City.

規宏 小原, Norihiro Obara · Institutional Repositories DataBase (IRDB) · Japan (Kasama)

This study analyzed the development factors of Kasama Klein Garten, an extended-stay allotment garden in Kasama City, Ibaraki Prefecture, focusing on "rurality" as represented in rural areas by external actors. The findings revealed that the development of Kasama Klein Garten is driven by diverse agriculture-related events and workshops offered within the facility, which promote the reconstruction of users' rurality, and this reconstructed rurality encourages continued use of the Klein Garten.

Hideharu KURITA, Tokuji Yamamoto, Tetsushi Shigeoka · JOURNAL OF RURAL PLANNING ASSOCIATION · Japan

A case study of an allotment garden for kitchen garbage recycling in Kitamoto City, Japan, examines the potential for agricultural land management by user organizations of allotment gardens in peri-urban areas. Analyzing the management system of an allotment garden with a garden user organization, the study finds that such organizations can potentially play a role in managing agricultural land in peri-urban settings, and that garden user organizations and their networks contribute to resolving problems related to urban residents' use of agricultural land.

焦必方 · 上海经济研究 · Japan (Tokyo)

This paper analyzes the experiences of modern rural construction in the suburbs of Tokyo, focusing on Mitaka City and Hinohara Village. It highlights the development of suburban rail networks and other infrastructure, the provision of comprehensive public facilities, and the promotion of urban agriculture tailored to suburban characteristics. The study also notes efforts to balance regional development disparities, advocate democratic management, and pursue social harmony.

Yasunari Miyake, Yasuo Matsumoto · JOURNAL OF RURAL PLANNING ASSOCIATION · Japan (Kobe City)

This paper clarified the process of village reorganization in Matsumoto district, Kobe City, Japan, which began with an allotment garden in a suburban agricultural area. Five conditions were identified as crucial for the approval and promotion of this reorganization: the presence of proactive leaders, the effective role of land improvement projects, public relations to residents, an administrative promotion system, and the district's specific location and social conditions.

Chiaki Negoro, Atsushi Tunekawa · Journal of the City Planning Institute of Japan · Japan

This paper examines the public perception of urban agricultural land as valuable open space in urban fringe areas. The study found that urban agricultural lands are considered valuable "green" spaces, with orchards (mainly persimmon trees) and farms being particularly highly evaluated. These positive perceptions were observed in both agricultural and nearby residential areas.

Junji Yamamura, Tatsuo Ura · The New Geography · Japan

Suburban agriculture around large cities has generally been declining under rapid urbanization, but the detailed development process of tourist farms as a form of suburban agriculture has not been well explained. Taking the right bank of the Tama River as a case, this paper examines how the long-established pick-your-own Tamagawa pear orchards adapted to and were transformed by Kawasaki City's rapid urbanization from the mid-1950s onward. In the right-bank area of northern Kawasaki City, despite rapid urbanization, pick-your-own tourist pear orchards remain widely distributed and draw brisk crowds in autumn, coexisting amid residences, apartment buildings, shops, and parking lots as urbanized land use spreads. The tourist orchards developed after 1928, when the Odakyu Electric Railway opened through joint efforts with local farms, and during the decade after 1956, depressed pear market prices led many farms to convert to the tourist-farm model and become profitable; the orchards currently sell 46% of annual production through pick-your-own tourism and 52% through roadside direct sales, while farms are generally sustained with income from real-estate side businesses such as rental housing, apartments, and parking lots. In northern Kawasaki, urbanization tied to residential development has passed its peak but continues steadily, and the tourist pear orchards are gradually decreasing; the paper states their outlook is clouded by deteriorating farming conditions and difficulty securing successors, prompting a new response in the form of Kawasaki City's tourist-farm policy, which includes establishing citizen orchards, fruit parks, and citizen farms.