Journal
TRANSACTIONS OF THE INSTITUTE OF BRITISH GEOGRAPHERS
Volume 33, Issue 2, Pages 268-287Publisher
WILEY
DOI: 10.1111/j.1475-5661.2008.00297.x
Keywords
in-channel wood; large woody debris; public perception; riverscape evaluation; channel improvement; naturalness; cross-cultural comparison
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Human perception of riverscapes with and without large wood (LW) has been investigated with a photo-questionnaire submitted to 2250 students in ten countries, capturing reactions to 20 pictures in terms of naturalness, danger, aesthetics and need for improvement. Principal component analysis performed on average scores per country per item showed that the primary discriminating factors are human modification, turbulence and extent of water shown in the scenes. Wood discriminated the perception of student groups, but other factors are also critical. Features associated with human activity (channel deepening and straightening, rip-rapping) were perceived to be less aesthetically pleasing than wood. Perception of the most dangerous riverscapes is not specifically affected by wood, but by turbulent flows and wide rivers. The presence of wood clearly discriminated the need for human intervention. Perceptions differed among countries, reflecting different cultural contexts. Students from Germany, Sweden and Oregon perceived LW more positively as a natural and wild component of watercourses. These perceptions are linked to positive attitudes towards natural riverscapes. Other students, such as those from China, Russia or India, perceived rivers with wood as needing regulation and maintenance. Whatever the socio-cultural context, large wood elicits an emotional influence on how one perceives riverscapes.
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