Soil and water bioengineering (SWBE) is a nature-based solution (NBS) that can be used to stabilize riverbanks with living vegetation. Aside to protecting property and people, SWBE provides benefits for human well-being and biodiversity. Its use remains modest in cities, where the presumed benefits are important in a context of biodiversity crisis and warming. Negative public perceptions have been identified as one barrier to the dissemination of NBS. This article studies how environmental expertise influences perceptions and values associated with SWBE, and how the possible differences in perceptions and values induced by knowledge contribute to hindering or promoting the dissemination of these solutions. We carried out an original interdisciplinary study based on a sociological survey and ecological field measurements to characterize: (1) the perceived value that actors associate with several riverbanks equipped with different protection structures (green, hybrid, or gray) according to their level of expertise in the aquatic environment; (2) the interactions between these perceived values and the ecological values measured by restoration ecologists; and (3) the perceived benefits and drawbacks of SBWE techniques. Our results show that the ecological and social benefits provided by NBS are recognized by all, whatever their level of knowledge. Despite this consensus, we observed different hierarchies of value associated with bank protection structures among the surveyed actors, depending on their level of environmental expertise (some prioritising ecological values, others relational values), and these could hinder the dissemination of NBS. The most tangible obstacle to the dissemination of NBS in urban areas relates to the risk perceptions of lay people, who experience a higher sense of vulnerability than they do with traditional gray solutions.

中文翻译：

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知识影响对基于自然的解决方案的看法和价值观：土壤和水生物工程技术应用于城市河流的示例

土壤和水生物工程（SWBE）是一种基于自然的解决方案（NBS），可用于稳定带有活植被的河岸。除了保护财产和人员之外，SWBE 还为人类福祉和生物多样性带来好处。它在城市中的使用仍然很少，在生物多样性危机和变暖的背景下，其假定的好处很重要。公众的负面看法已被认为是 NBS 传播的一大障碍。本文研究环境专业知识如何影响与 SWBE 相关的认知和价值观，以及知识引起的认知和价值观可能存在的差异如何阻碍或促进这些解决方案的传播。我们基于社会学调查和生态实地测量进行了一项原创的跨学科研究，以表征：（1）参与者根据其专业水平与配备不同保护结构（绿色、混合或灰色）的几个河岸相关的感知价值在水生环境中；（2）这些感知价值与恢复生态学家测量的生态价值之间的相互作用；(3) SBWE 技术的优点和缺点。我们的结果表明，NBS 提供的生态和社会效益得到了所有人的认可，无论其知识水平如何。尽管存在这一共识，但我们观察到，受调查的参与者之间与银行保护结构相关的价值层次不同，具体取决于他们的环境专业知识水平（一些优先考虑生态价值，另一些优先考虑关系价值），而这些可能会阻碍 NBS 的传播。在城市地区传播 NBS 的最明显障碍与非专业人士的风险认知有关，与传统的灰色解决方案相比，他们感受到了更高的脆弱性。