E.g. definitions/meanings/perceptions/expectations/etc. from a geographers, ecologists, historians, artists, etc. point of view (patterns and processes, scenery, cutural or political factors, etc.)?
it is the website of one of scientific journals (run by Polish Geographical Society) mainly devoted to the cultural landscape research. It is Polish one, however you will fnd there lots of articles in English, there are also some theoretical papers with basic definitions and classifications of landscape.
I contributed to a volume in which the urban landscape concept is tentatively discussed at the light of bioculture, heritage, identity, environmental networks & reticular paradigms, and the European Landscape Convention (2000).
SARGOLINI MASSIMO (2012). Urban landscape. Environmental Networks and Quality of Life. p. 1-178, Milano:Springer-Verlag, ISBN: 9788847028791. e-ISBN 978-88-470-2880-7
You can find in my research gate publications the introductory pages which have been delivered with my short note (Relationships between Urban Green Spaces and Surrounding Nature Area).
A colleague suggested abook collecting many definitions of landscape (by architects, artists, biologists, ecologists, philosophers, geographers, jurists, writers, semiotics experts, sociologists, historians, urban and landscape planners)... unfortunately in Italian language!
Franco Zagari, 2006 - "Questo è paesaggio: 48 definizioni"
Grandi tascabili di architettura - Gruppo Mancosu editore, Roma