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Restoring Rivers and Floodplains for Habitat and Flood Risk Reduction: Experiences in Multi-Benefit Floodplain Management From California and Germany

Serra-Llobet, Anna ; Jähnig, Sonja C.; Geist, Juergen; Kondolf, G. Mathias; Damm, Christian 1; Scholz, Mathias; Lund, Jay; Opperman, Jeff J.; Yarnell, Sarah M.; Pawley, Anitra; Shader, Eileen; Cain, John; Zingraff-Hamed, Aude; Grantham, Theodore E.; Eisenstein, William; Schmitt, Rafael
1 Institut für Geographie und Geoökologie (IFGG), Karlsruher Institut für Technologie (KIT)

Abstract:

Conventional flood control has emphasized structural measures such as levees, reservoirs, and engineered channels—measures that typically simplify river channels and cut them off from their floodplain, both with adverse environmental consequences. Structural measures tend to be rigid and not easily adapted to increased flooding regimes resulting from environmental change. Such actions also limit the natural hydrologic benefits of floodplains such as storing floodwaters, improving water quality, providing habitat for invertebrates and fish during periods of inundation, and supporting a multitude of cultural services. As these benefits are more widely recognized, policies are being adopted to encourage projects that reduce flood risks and restore floodplain ecosystems, while acknowledging the social-ecological context. The number of such projects, however, remains small. We assessed four multi-benefit floodplain projects (two in California, United States, and two in Germany) and characterized their drivers, history, and measures implemented. In both United States cases, the dominant driver behind the project was flood risk reduction, and ecosystem restoration followed, in one case inadvertently, in the other as a requirement to receive a subsidy for a flood risk reduction project. ... mehr


Verlagsausgabe §
DOI: 10.5445/IR/1000145750
Veröffentlicht am 05.05.2022
Originalveröffentlichung
DOI: 10.3389/fenvs.2021.778568
Scopus
Zitationen: 40
Web of Science
Zitationen: 35
Dimensions
Zitationen: 44
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Geographie und Geoökologie (IFGG)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2022
Sprache Englisch
Identifikator ISSN: 2296-665X
KITopen-ID: 1000145750
Erschienen in Frontiers in Environmental Science
Verlag Frontiers Media SA
Band 9
Seiten Art.-Nr.: 778568
Vorab online veröffentlicht am 16.03.2022
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Web of Science
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