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Landscape Architecture

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Landscape Architecture
ABSTRACT

We have proposed a framework for transforming landscapes to improve performance by integrating ecological principles into landscape design. This effort would focus on the development of multifunctional landscapes, guided by the rapidly growing knowledge base of ecosystem services provided by landscape features. Although the conventional approach to landscape ecology is based on a model that assumes poor ecological quality in the human-dominated matrix, a review of recent literature reveals important opportunities to improve the quality of the landscape matrix by increasing spatial heterogeneity through the addition of seminatural landscape elements designed to provide multiple ecosystem services. Taken alone, these individual elements might not appear to have a large impact on the environment, but when considered together within the entire landscape, the contribution could be significant, particularly when these elements are intentionally designed to improve landscape performance. Previous attention has focused on the value of large patches of native vegetation for conservation efforts. These efforts have included preserving those areas that still remain, restoring those that once existed, and providing connectivity between them. But great opportunities exist to improve the quality of the matrix by designing multifunctional elements throughout the landscape. Through a synthesis of knowledge in landscape architecture and landscape ecology, we have demonstrated some important applications of the landscape performance framework in urban and agricultural settings. Based on a review of the literature, we have suggested several methods of evaluating and monitoring landscape performance to determine the relative success of a designed landscape.

Key words: agroecosystem; design guidelines; ecological design; ecosystem services; human-dominated; multifunctional landscape; multifunctionality; urban agriculture; urban ecology.

INTRODUCTION

According to



Cited: Ahern, J., E. Leduc, and M. L. York. 2006. Biodiversity planning and design. Island Press, Washington, D.C., USA. Alberti, M Andersson, E. 2006. Urban landscapes and sustainable cities. Ecology and Society 11(1): 34. [online] URL: http://www.ecologyandsociety.org/vol11/iss1/art34/. Angileri, V., and A. Toccolini. 1993. The assessment of visual quality as a tool for the conservation of rural landscape diversity. Landscape and Urban Planning 24:105–112. Arriaza, M., J. F. Canas-Ortega, J. A. Canas-Madueno, and P. Ruiz-Aviles. 2004. Assessing the visual quality of rural landscapes. Landscape and Urban Planning 69:115–125. Aschenwald, J., K Bailey, S. 2007. Increasing connectivity in fragmented landscapes: an investigation of evidence for biodiversity gain in woodlands. Forest Ecology and Management 238:7–23. Baudry, J., F Benton, T. G., J. A. Vickery, and J. D. Wilson. 2003. Farmland biodiversity: is habitat heterogeneity the key? Trends in Ecology and Evolution 18:182–188. Blaschke, T Bolund, P., and S. Hunhammar. 1999. Ecosystem services in urban areas. Ecological Economics 29:293–301. Boutin, C., B Boutin, C., B. Jobin, L. Belanger, and L. Choiniere. 2002. Plant diversity in three types of hedgerows adjacent to cropfields. Biodiversity and Conservation 11:1–25. Boyer, T., and S Brandt, J., and H. Vejre. 2004. Multifunctional landscapes — motives, concepts and perspectives. Pages 3–31 in J. Brandt and H. Vejre, editors. Multifunctional Landscapes Volume I: Theory, Value, and History. WIT, Boston, Massachusetts, USA. Burger, J Cadenasso, M. L., S. T. A. Pickett, and K. Schwarz. 2007. Spatial heterogeneity in urban ecosystems: reconceptualizing land-cover and a framework for classification. Frontiers in Ecology and the Environment 5:80–88. Carpenter, S Chiesura, A. 2004. The role of urban parks for the sustainable city. Landscape and Urban Planning 68:129–138. City of Portland. 2004. Stormwater management manual, revision 3. Environmental Services, Clean River Works. City of Portland, Portland, Oregon, USA. Colding, J Cook, W. J., D. G. Casagrande, D. Hope, P. M. Groffman, and S. L. Collins. 2004. Learning to roll with the punches: adaptive experimentation in human-dominated systems. Frontiers in Ecology and the Environment 2:467–474. Costanza, R., R Daniel, T. C., and M. M. Meitner. 2001. Representational validity of landscape visualizations: the effect of graphical realism on perceived scenic beauty of forest vistas. Journal of Environmental Psychology 21(1):61–72. de Blust, G., and M de Groot, R. 2006. Function-analysis and valuation as a tool to assess land-use conflicts in planning for sustainable, multifunctional landscapes. Landscape and Urban Planning 75:175–186. De Sousa, C Diekelmann, J., and R. Schuster. 2002. Natural landscaping: designing with native plant communities. The University of Wisconsin Press, Madison, Wisconsin, USA. Doing, H Doron, G. 2005. Urban agriculture: small, medium, large. Architectural Design 75:52-59. Dramstad, W Dramstad, W. E., M. S. Tveit, W. J. Fjellstad, and G. L. A. Fry. 2006. Relationships between visual landscape preferences and map-based indicators of landscape structure. Landscape and Urban Planning 78:465–474. Dunnett, N., and A Earth Pledge. 2005. Green roofs: ecological design and construction. Schiffer, Atglen, Pennsylvania, USA. Erickson, D Farber, S., R. Costanza, D. L. Childers, J. Erickson, K. Gross, M. Grove, C. S. Hopkinson, J. Kahn, S. Pincelt, A. Troy, P. Warren, and M. Wilson. 2006. Linking ecology and economics for ecosystem management. BioScience 56:121–133. Felson, A Fischer, J., D. B. Lindenmayer, and A. D. Manning. 2006. Biodiversity, ecosystem function, and resilience: ten guiding principles for commodity production landscapes. Frontiers in Ecology and the Environment 4:80–86. Fleischer, A., and A Forman, R. T. T., and L. E. Alexander. 1998. Roads and their major ecological effects. Annual Review of Ecological Systems 29:207–231. Forman, R Franco, M., A. V. D. Roux, T. A. Glass, B. Caballero, and F. L. Brancati. 2008. Neighborhood characteristics and availability of healthy foods in Baltimore. American Journal of Preventive Medicine 35:561–567. Frank, L Freemark, K. E., C. Boutin, and C. J. Keddy. 2002. Importance of farmland habitats for conservation of plant species. Conservation Biology 16:399–412. Gaston, K Gorenflo, L. J., and K. Brandon. 2005. Agricultural capacity and conservation in high biodiversity forest ecosystems. Ambio 34:199–204. Greenberg, M., and M Groenfeldt, D. 2006. Multifunctionality of agricultural water: looking beyond food production and ecosystem services. Irrigation and Drainage 55:73–83. Hellmund, P

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