A conceptual framework for integrated assessment

Interdisciplinary and knowledge integration are widely applied concepts for decision-support within environmental management. The choice of an appropriate framework to support integrated assessment is an important step for the definition of the system being studied. The DPSIR (Driver-Pressure-State-Impact- Response) conceptual framework is one such tool which functions by addressing the cause-effect relationships between sectors of human activity and the environment, thus being ideal for anthropogenized natural environments as is the Bahia de Cádiz Nature Park. The paper describes how, supported by input from literature review and expert consultation, the framework may be used as an entry point for the definition of the significant D-P-S-I elements that characterize the study area, playing at different spatial and temporal ranges. Human health concepts are included, emphasizing its 'integrated' nature. Results demonstrate an interest in uncovering dynamics amongst drivers within the 'Sectors' and 'Infrastructure' groups; resulting changes within land-use patterns and hydrological modifications (pressures); their effects on the different land-types , geological and hydrological characteristics, vegetation and birdlife (states) and the effects of these on the different services (impacts) the park environment offers. Remote sensing, GIS technology and indicators are postulated as efficient analysis tools for applying to available aerial photos, satellite imagery and birdlife census data. Ultimately the framework hopes to serve as a conceptual base for future investigation within the scope of this project and beyond.