Evaluating levee setback distance for the co-benefits of groundwater recharge and riparian ecosystem function DOI Creative Commons
Andrew Calderwood, Alisha Rodriguez, Laura Foglia

et al.

Frontiers in Environmental Science, Journal Year: 2024, Volume and Issue: 12

Published: Dec. 6, 2024

Constructed levees are designed to protect anthropogenic developments from destructive flooding events, but their construction has reduced groundwater recharge, increased flood risk severity under levee failure, the incision of river channels, and deteriorated riparian habitat. To reverse these impacts, setbacks often reduce provide opportunity restore ecohydrological function, while recharge is rarely considered because it may require relatively detailed system analysis. In this study, we evaluated 100 heterogeneous hydrogeology realizations estimate with high-conductivity pathways (HCPs) varying flows for a range setback distances identify trade-offs in floodplain We find that on regional scale, total potential increases distance, largest gains up 1,400 m where there outcropping HCPs sufficient flow inundate more area. contrast, per unit area (i.e., average daily divided by area) generally decreases as increases, local at HCP sufficiently offset larger There median 10%–40% reduction peak streamflow increasing which would aid reduction, leads decreasing depth due losses spreading water. Ultimately, decision distance will depend conditions management goals, necessary ecosystem function. Our results highlight consider benefits feasibility studies semi-arid regions impacted floods overdrafts so designs can achieve integration habitat, recharge.

Language: Английский

A Holistic Catchment‐Scale Framework to Guide Flood and Drought Mitigation Towards Improved Biodiversity Conservation and Human Wellbeing DOI Creative Commons
Phillip J. Haubrock, Rachel Stubbington, Nicola Fohrer

et al.

Wiley Interdisciplinary Reviews Water, Journal Year: 2025, Volume and Issue: 12(1)

Published: Jan. 1, 2025

ABSTRACT As climatic extremity intensifies, a fundamental rethink is needed to promote the sustainable use of freshwater resources. Both floods and droughts, including water scarcity, are exacerbating declines in river biodiversity ecosystem services, with consequences for both people nature. Although this global challenge, densely populated regions such as Europe, East Asia North‐America, well most affected by climate change, particularly vulnerable. To date mitigation measures have mainly focused on individual, local‐scale targets, often neglecting hydrological connectivity within catchments interactions among hydrology, biodiversity, change human wellbeing. A comprehensive approach improve infiltration, retention groundwater recharge, thereby mitigating impacts heavy rainfall droughts scarcity. We propose holistic catchment‐scale framework that combines conventional civil engineering methods, nature‐based solutions conservation actions. This integrates legislation, substantial funding governance structure transcends administrative discipline boundaries, enabling coordinated actions across multiple spatial temporal scales. It necessitates collaboration local regional stakeholders citizens, scientists practitioners. vision management resources could synergistic effects support mitigate functional ecosystems deliver benefits people.

Language: Английский

Citations

0
Successes and failures of conservation actions to halt global river biodiversity loss DOI Creative Commons
Peter Haase, Daniela Cortés‐Guzmán, Fengzhi He

et al.

Published: Jan. 20, 2025

Language: Английский

Citations

0
Nature‐Based Solutions in Flood Risk Management DOI
Thomas Thaler, Lenka Slavíková, Thomas Hartmann

et al.

Wiley Interdisciplinary Reviews Water, Journal Year: 2025, Volume and Issue: 12(1)

Published: Jan. 1, 2025

Language: Английский

Citations

0
Reorienting urban stream management to focus on equitable delivery of benefits DOI Creative Commons
Seth J. Wenger, Aditi S. Bhaskar, Brian L. Murphy

et al.

PLOS Water, Journal Year: 2025, Volume and Issue: 4(2), P. e0000308 - e0000308

Published: Feb. 28, 2025

Urban streams are often managed in ways that contribute to societal inequities. Members of marginalized groups frequently exposed elevated flood risk and impaired water quality, with reduced access essential infrastructure greenspace within stream corridors. The freshwater science research community has traditionally argued for management improves ecological integrity, which can have the unintended consequence steering investments away from most degraded streams, low-income neighborhoods. We argue it is time reorient municipal programs towards objective equitable delivery benefits, take many forms, de-emphasize goal restoring pre-development condition. To meet municipalities will need establish systems collaborative governance, organizations empowered participate as equal partners urban decision-making. recognize practical challenges face making these transitions, vary by country region. Here, we identify some opportunities highlight case studies illustrating how communities taking steps toward more management.

Language: Английский

Citations

0
Conceptualizing River Floodplains DOI Creative Commons
Ellen Wohl

Earth s Future, Journal Year: 2025, Volume and Issue: 13(3)

Published: March 1, 2025

Abstract Geologic, geomorphic, hydrologic, ecological, and biogeochemical conceptual models of river floodplains developed since the mid‐20th century led to current conceptualization as integrative systems that store transform diverse materials, provide a source material can be transported downstream, function ecosystems. Scientific recognition critical component corridors is not, however, matched by societal perceptions legal or regulatory frameworks, which typically treat active channel floodplain separate entities. The development an scientific understanding reviewed here, along with five primary challenges progress in managing floodplains. These involve: integrating thinking, data collection, modeling, prediction across disciplines manner facilitates work practitioners regulators; scaling time space; measuring predicting feedbacks nonlinear interactions; resilience resistance natural human‐induced disturbances; effectively communicating social technical uncertainties management.

Language: Английский

Citations

0
The ecological benefits of more room for rivers DOI
Christina L. McCabe, Christoph D. Matthaei, Jonathan D. Tonkin

et al.

Nature Water, Journal Year: 2025, Volume and Issue: unknown

Published: March 21, 2025

Language: Английский

Citations

0
Siloed funding of multibenefit projects highlights the need for funding programs that integrate cobenefits DOI Creative Commons
Marie Grimm, Anna Serra‐Llobet, Molly Bruce

et al.

Frontiers in Water, Journal Year: 2025, Volume and Issue: 7

Published: April 2, 2025

Multibenefit projects, such as integrated flood risk management are gaining attention solutions for complex social and environmental challenges. Among other benefits, these projects offer opportunities to combine reduction, restoration, climate resilience. However, multibenefit face institutional challenges their implementation. One challenge is securing adequate sustained funding, partly because of a mismatch between the integrative goals narrower intent siloed funding sources structured largely in response needs traditional, single-purpose gray infrastructure projects. We explore how proponents can fund what landscape means project Using Pajaro River California case study, we analyze project’s implications cobenefits. navigating authorization fragmented achieve benefits beyond reduction. thematic document analysis consultations with local partners, outline pursued sources, gaps. In our motivated champions incorporated cobenefits like groundwater recharge habitat restoration into project, despite narrow provisions authorization. challenged efforts, causing some gaps To address challenges, agencies provide programs that reflect nature many encourage cobenefits, rather than rely on incorporate considerations. If decision-makers want across sectors, need consistent promote, stifle, pursuit While institutional, jurisdictional, administrative currently tackled by individuals project-by-project basis, broader effort reform regimes could ease burdens scale up solutions.

Language: Английский

Citations

0
Evaluating levee setback distance for the co-benefits of groundwater recharge and riparian ecosystem function DOI Creative Commons
Andrew Calderwood, Alisha Rodriguez, Laura Foglia

et al.

Frontiers in Environmental Science, Journal Year: 2024, Volume and Issue: 12

Published: Dec. 6, 2024

Constructed levees are designed to protect anthropogenic developments from destructive flooding events, but their construction has reduced groundwater recharge, increased flood risk severity under levee failure, the incision of river channels, and deteriorated riparian habitat. To reverse these impacts, setbacks often reduce provide opportunity restore ecohydrological function, while recharge is rarely considered because it may require relatively detailed system analysis. In this study, we evaluated 100 heterogeneous hydrogeology realizations estimate with high-conductivity pathways (HCPs) varying flows for a range setback distances identify trade-offs in floodplain We find that on regional scale, total potential increases distance, largest gains up 1,400 m where there outcropping HCPs sufficient flow inundate more area. contrast, per unit area (i.e., average daily divided by area) generally decreases as increases, local at HCP sufficiently offset larger There median 10%–40% reduction peak streamflow increasing which would aid reduction, leads decreasing depth due losses spreading water. Ultimately, decision distance will depend conditions management goals, necessary ecosystem function. Our results highlight consider benefits feasibility studies semi-arid regions impacted floods overdrafts so designs can achieve integration habitat, recharge.

Language: Английский

Citations

0