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...Ecology vol i restoration j cortina and v r vallejo department of university alicante spain centre for mediterranean environmental study valencia keywords ecosystem degradation thresholds engineering facilitation species control non indigenous introduction provenances ecotechnology contents the origins in objectives time scales dynamics a framework unwanted disturbance regime to foster succession provenance introduced passive active techniques seedling quality plant animal conditions their manipulation landscape acknowledgements glossary bibliography biographical sketch unesco eolss summary sample chapters at onset twenty first century has become one most areas it represents an excellent springboard discussing testing current ecological theories these relevant are probably on since they essential setting up intervention thus driving entire process present practitioners find both wide range available just as important open field develop new creative arises from social demands its practi...