期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2000
卷号：XXXIII Part B7(/1-4)
页码：243-249
出版社：Copernicus Publications
摘要：The present contribution makes a proposal for the quantitative characterization of different types of consumable and non-consumable geomorphological resources, as a basis for impact assessment. These resources can be quite diverse in their nature, including for instance raw or construction materials, soils, sites of geomorphological interest or landscape resources. Accordingly, impacts can be expressed in quite different terms: lost monetary value in the case of resources with market value; lost productivity in the case of soils or geomorphological units which support productive ecosystems; area or population affected by losses in landscape quality; by means of non-dimensional numerical indices in the case of both landscape quality or sites of scientific, educational or recreational value. Through a GIS, computer maps and associated databases can be prepared for the different types of geomorphological resources. The databases should include information on those parameters used for the characterization of each resource type. The computer overlay of proposed actions (road, railway, urban development, etc.) and resource maps enables the assessment of impacts, selection of least impacting alternatives and so on. The method proposed has been applied to assess the impacts of motorway construction in nothern Spain. Parameters used for describing existing resources, maps and databases, models for impact assessment and results obtained are presented
关键词：Evaluation; Geosphere/biosphere; GIS; Land use/Land cover; Resources; Spatial databases
