2022 Early Hearing Detection & Intervention Virtual Conference
March 13 - 15, 2022
5/24/2018 | 11:00 AM - 11:15 AM | RIPARIAN ZONES: WHY BOTHER? | 310 A
RIPARIAN ZONES: WHY BOTHER?
Investigating the effect of land use on water quality at the catchment scale goes back decades. Recent land cover and land use changes with increasing anthropogenic pressure on water resources have occurred at a planetary scale, leading to water quality degradation. From a landscape perspective, riparian zones have long been considered buffer zones, acting as biogeochemical hot spots of nitrogen removal. However, riparian corridors are also zones of incredible spatiotemporal variability, which has been a major obstacle to scaling measured processes beyond the reach level. Yet, there is a pressing need to translate reach-small-scale process understanding to larger-scale catchment units of ca few km2, particularly for inter-catchments comparison, but this requires quantifying the effects of different spatial configurations of landscape units, including riparian zones, but also other landscape structures (e.g. hyporheic zone, aquifer, soils, floodplain) and physical characteristics on catchment water quality. In this context, we develop a conceptual framework that combines landscape-level topographic analysis, process based field investigations using biogeochemical proxies, and water retention time distributions to characterise landscape nitrogen removal capacity.
- Landscape
- Nitrogen
- Denitrification
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Presenters/Authors
Gilles Pinay
(), CNRS, gilles.pinay@ens-lyon.fr;
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Benjamin Abbott
(), Department of Earth and Environmental Sciences, Michigan State University, USA, benabbo@gmail.com;
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Florentina Moatar
(), INRAE, florentina.moatar@inrae.fr;
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