Balanced Diet: Preserving Development; Developing Preservation A Case of Yui Labor System, Shirakawa-go, Japan, Ron Carle Born in Vancouver, Canada. Ron Carle is a postdoctoral research fellow at the National Museum of Ethnology, sponsored by the Japan Society for the Promotion of Science. He received his BA (Honours) in Political Studies from Queen's University, Canada, and his PhD in Social Anthropology from Edinburgh University, UK. He was also a Monbusho sponsored visiting postgraduate research student at Kyoto University. His current fieldwork is being conducted in Shirakawa village (Gifu), Taketomi-jima (Okinawa), and Iwami-ginzan (Shimane), studying the relationship between heritage preservation and local development strategies. His publications include “The development and social impact of heritage tourism in Shirakawa-go, Ogimachi,” Ritsumeikan Journal of Asia Pacific Studies, 2003; “Rising suns, setting suns: Japan, anthropology, and pilgrimage in Santiago de Compostela (an international encounter),” Japan Anthropology Workshop Newsletter, 1996. His research interests include modern Japanese rural society, heritage preservation and tourism development, traditional labour systems (supra-financial cooperative labour exchange), social movements, and modern cultural fetishisms. email address : gasshobo@idc.minpaku.ac.jp This paper will expand upon the symposium themes by examining the relationship between the preservation of traditional landscapes and the transmission of local knowledge. The study is based upon the long term social anthropological study of a renowned cultural heritage site, Shirakawa-go, Ogimachi, in the Hida region of Gifu prefecture, Japan. It is both a nationally designated heritage preservation district and a UNESCO World Cultural Heritage Site. As a repository of tradition located in a modern, urbanised industrial state, it both a part of the national society, and apart from it. The position taken here is that the relationships between the built and natural environments, and between preservation and development, are best examined as a matter of balance, rather than of binary opposition; not in itself a particularly radical idea, but certainly one worthy of emphasis. This concept is itself exemplified in the local heritage preservation society's name, Shirakawa-go, Ogimachi Society for the Protection of the Natural Environment (known locally as the Mamoru Kai). The society is responsible for the regulation of the heritage environment, in this case seen as an encompassing mandate that includes both the built environment of the village itself and the natural surroundings that provide its backdrop. The paper will look at the issues of cultural diversity and the transmission of local knowledge through reference to the social and technical means used to maintain the thatch roofs that are the crowning glory of the Gassho-zukuri houses. Particular attention will be paid to the changing continuity of the Yui labour system, a once ubiquitous form of supra-financial labour exchange that provides the main local idiom for local social and cultural identity, and the default mode of roof maintenance strategy. The issue of biodiversity will be examined with reference to the increasing problem of securing a sufficient supply of the thatch (miscanthus sinensis) to allow proper and timely roof maintenance. Here, issues of modernisation and generational succession and rupture can be seen in plain view. Finally, the axes of transmission and intersection of knowledge regimes are to be seen as multiple and variegated: across generations, localities, societies and cultures, but also between and within those categories. This is to say that transmission and intersection are both inter-, but also intra-, the latter being an often overlooked axis that is crucial to the vitality and development of tradition and knowledge.