Description:This book contains papers presented at the Sixth International Conferenceon Ecosystems and Sustainable Development, held in Coimbra, Portugal, September 5-7, 2007. The book presents research related to different aspects of ecosystems and sustainable development, including physical sciences and modelling. A wide list of topics includes: Thermodynamics and ecology;Sustainability indicators; Mathematical and system modelling; Biodiversity;Sustainability development studies; Conservation and management ofecological areas; Socio-Economic Factors; Energy Conservation and Generation; Environmental conservation and generation; Environmental and Ecological Policies; Environmental management;Environmental Risk; Natural Resources Management; Recovery of Damaged Areas; Biological Aspects; Complexity; Remote Sensing; Landscapes and Forestation Issues; Soil and agricultural issues; Water Resources; Sustainable Waste Management; Air Pollution and its Effects on Ecosystems.