Ground Imagery and Environmental Perception: Using Photo-questionnaires to Evaluate River Management Strategies - Fluvial Remote Sensing for Science and Management - page 414

and sustainable management of streams and rivers must
reconcile different objectives - such ecologic restoration,
flood protection, or human recreation - the importance
of which varies according to river sections. The water-
course multifunctionality does not imply that all uses
must be supported everywhere. There is a need to
divide management practises into sectors (Asakawa et al.,
2004; Dufour and Piegay, 2009). River management must
involve the lay public to ascertain the key variables that
are considered by the silent majority when evaluating
riverine environments and establish its preferences for
river corridor features. The inclusion of public partici-
pation in river management and planning could reduce
the public's possible resistance to change. However, if
the enhancement of public acceptance and support is the
target, it must be noted that the public is not a homoge-
neous group, but encompasses people of diverse interests
(House and Fordham, 1997). Public involvement also
aims to identify misperceptions and to expand knowl-
edge regarding ecosystem functioning. There is 'a need
to develop a greater appreciation of unique and scientif-
ically important landscapes' (Gregory and Davis, 1993,
p. 172). Environmental information campaigns should
explain the ecological benefits of these unique land-
scapes, such as, for example, in-channel woody debris or
gravel-bed rivers.

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Acknowledgements

The research presented in this chapter is supported by
the CNRS-funded interdisciplinary project ''Ingenierie
ecologique'', by the ANR-funded project ''Gestrans'', and
by the ''Accord cadre ZABR/Agence de l'eau RMC''.
Many thanks to Melanie Cossin who contributed to the
survey in the Roubion catchment and the preliminary
discussions. Comments by Patrice Carbonneau and two
external reviewers helped to improve this chapter.

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