This study determines, analyzes and publishes rankings concerning the functionalities of information services of Portuguese municipalities, based on the direct observation of their web sites, executed between March and June of 2006. It summarizes information concerning these functionalities...

This introductory paper aims to address the features of environmental sustainability in agriculture. Recent developments of the concept, which are discussed here, emphasise its multi-faceted nature and lead to various definitions as well as to different implications for policy measures in...

Land use and cover change are very complex phenomena, based on relationships among environmental, social and economic factors. Moreover, its analysis could be highly valuable for predicting the effects of land use change and for planning a policy intervention able to steer agricultural...