394 social groups including the forestry authority should work to- gether. (Urban Forestry and Urban Greening 2007. 6(2):83–92) GEOSPATIAL METHODS PROVIDE TIMELY AND COMPREHENSIVE URBAN FOREST INFORMATION Kathleen T. Ward and Gary R. Johnson Urban forests are unique and highly valued resources. However, trees in urban forests are often under greater stress than those in rural or undeveloped areas due to soil compaction, restricted growing spaces, high temperatures, and exposure to air and wa- ter pollution. In addition, conditions change more quickly in urban as opposed to rural and undeveloped settings. Subse- quently, proactive management of urban forests can be challeng- ing and requires the availability of current and comprehensive information. Geospatial tools, such as, geographic information systems (GIS), global positioning systems (GPS) and remote sensing, work extremely well together for gathering, analyzing, and reporting information. Many urban forest management ques- tions could be quickly and effectively addressed using geospatial methods and tools. The geospatial tools can provide timely and extensive spatial data from which urban forest attributes can be derived, such as land cover, forest structure, species composition and condition, heat island effects, and carbon storage. Emerging geospatial tools that could be adapted for urban forest applica- tions include data fusion, virtual reality, three-dimensional visu- alization, Internet delivery, modeling, and emergency response. (Urban Forestry and Urban Greening 2007. 6(1):15–22) Arboricultural Abstracts INCORPORATING BIODIVERSITY ASSETS IN SPATIAL PLANNING: METHODOLOGICAL PROPOSAL AND DEVELOPMENT OF A PLANNING SUPPORT SYSTEM Davide Geneletti The information on biodiversity issues that planners have at disposal often offers a very limited support, due to the lack of informative data and suitable planning support systems (PSS). This paper aims at improving the treatment of biodiversity assets in spatial planning by proposing an approach to map and assess biodiversity assets, and by implementing it into a PSS, charac- terised by ease of use and usefulness. Biodiversity assets were divided into six themes, two of which refer to species (animal and plant species), and the remaining four to ecosystems (forest, agriculture, aquatic, and alpine ecosystems). For each theme, the relevant baseline data were collected and processed, a multicri- teria evaluation scheme was set up, and value judgments pro- vided by experts of research institutes and public administration technical offices were sought. The themes were then integrated into a composite map. Factual and value-based information gen- erated during the analysis was organised into a PSS, represented by a Geographic Information System (GIS) platform with a cus- tomised querying interface, which allows users to access to the- matic layers in a hierarchical fashion, as well as to retrieve relevant background information and reports. The PSS was tested for a specific planning task: the screening stage of Envi- ronmental Impact Assessment (EIA). The study area is located in Trentino, an alpine region in northern Italy. (Landscape and Urban Planning 2008. 84(3–4):252–265) ©2008 International Society of Arboriculture
November 2008
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