Strategic environmental assessment vulnerability of physical,biological and human systems to global risks region Taza as a model

The world is facing many environmental problems. pollution,ecosystem and habitat degradation,biodiversity loss (sixth great extinction) are all problems that it is urgent to solve. some of them,due to their speed and extension,can lead to irreversible damages to the environment. it is in this context that are placed impact assessments on the environment that serve as a backdrop to the analysis of environmental issues. trends in the environmental impact assessment consist of (1) a strong penetration of the concepts and tools from the theory of information and information technology. modeling and geographic information system increase the scope,validity and predictive power of impact studies (2) an interpretation of the dynamics of environmental phenomena that highlights the natural potential of lands,the causes of their fragility,their degradation level,and the dynamic processes that are exerted on the lands. taking into account this dynamics allows the assessment of cumulative effects which is in turn the basis for the pursuit of sustainable development (3) an increasing participation of concerned populations. according to this international movement,the moroccan mountain,which is densely populated,heavily exploited but extremely marginalized,should be better valued and benefit from a significant boost. the aim of this work is the environmental assessment (through its dynamics),especially research in the environmental impact areas which is among the recognized tools and essentials to foster sustainable development. an interpretation of the natural environment dynamics is able to highlight the land potential,the causes of land fragility,the dynamic processes and the state of degradation. taking into account this dynamics can address the cumulative effects assessment which is the basis for any environmental assessment. this synthetic work attempts to examine the scope and nature of potential environmental effects and the likely importance of any adverse environmental effects.