Viewing river corridors through the lens of critical zone science
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Abstract
River corridors integrate the active channels, geomorphic floodplain and riparian areas, and hyporheic zone while receiving inputs from the uplands and groundwater and exchanging mass and energy with the atmosphere. Here, we trace the development of the contemporary understanding of river corridors from the perspectives of geomorphology, hydrology, ecology, and biogeochemistry. We then summarize contemporary models of the river corridor along multiple axes including dimensions of space and time, disturbance regimes, connectivity, hydrochemical exchange flows, and legacy effects of humans. We explore how river corridor science can be advanced with a critical zone framework by moving beyond a primary focus on discharge-based controls toward multi-factor models that identify dominant processes and thresholds that make predictions that serve society. We then identify opportunities to investigate relationships between large-scale spatial gradients and local-scale processes, embrace that riverine processes are temporally variable and interacting, acknowledge that river corridor processes and services do not respect disciplinary boundaries and increasingly need integrated multidisciplinary investigations, and explicitly integrate humans and their management actions as part of the river corridor. We intend our review to stimulate cross-disciplinary research while recognizing that river corridors occupy a unique position on the Earth's surface.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Viewing river corridors through the lens of critical zone science |
| Series title | Frontiers in Water |
| DOI | 10.3389/frwa.2023.1147561 |
| Volume | 3 |
| Year Published | 2023 |
| Language | English |
| Publisher | Frontiers |
| Contributing office(s) | WMA - Earth System Processes Division |
| Description | 1147561, 26 p. |
| Google Analytic Metrics | Metrics page |