THE ROLE OF HORSE KEEPING IN TRANSFORMING PERI-URBAN LANDSCAPES Monica HAMMER, Madeleine BONOW & Mona PETERSSON Södertörn University, Sweden, monica.hammer@sh.se, madeleine.bonow@sh.se & mona.petersson@sh.se Horse keeping provide a number ecosystem services to society and also affect the environment in various positive and negative ways. During recent decades, the number of horses has increased rapidly both in Europe and Northern America, but now in a different role as providers of cultural and recreational services for human well-being. In this case study of the peri-urban areas of Stockholm, Sweden, we analyze this ongoing transformation and the implications for landscape planning through the lens of ecosystem services, including cultural services. The peri-urban landscape is characterized by a diversified and fragmented land-use with strong relations to functions belonging to an urbanized society with urban, mobile life-styles. At the same time, there are long traditions of agriculture in the urban periphery of Stockholm. The rapidly increasing number of horses affect land use and ecological status in different ways. Horse farms and their associated functions occupy large land surfaces in peri-urban areas where the competition for land is already high. The growing number of horses has promoted a development of "horsiculture" with many horses grazing outdoors on land formerly used as agricultural land and for grazing of life-stock. Also, recreational riding demands access to land for riding trails. However, so far horse keeping is rarely explicitly included in physical planning. We discuss the need for more comprehensive practices for including horse keeping in landscape planning taking all types of ecosystem services and key interlinkages between them into account.