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Assessing land use influences on isotopic variability and stream water ages in urbanising rural catchments

Stevenson, Jamie Lee ; Geris, Josie ; Birkel, Christian ; Tetzlaff, Doerthe ; Soulsby, Chris

Isotopes in environmental and health studies, 2022-06, Vol.58 (3), p.277-300 [Periódico revisado por pares]

England: Taylor & Francis

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Título:
Assessing land use influences on isotopic variability and stream water ages in urbanising rural catchments
Autor: Stevenson, Jamie Lee ; Geris, Josie ; Birkel, Christian ; Tetzlaff, Doerthe ; Soulsby, Chris
Assuntos: Agriculture ; Catchments ; environmental management ; Environmental Monitoring ; hydrogen-2 ; Hydrology ; Information processing ; isotope hydrology ; Isotopes ; Land use ; land use change ; Landscape ; mean transit time ; oxygen-18 ; Rivers ; Rural catchments ; sampling strategies ; Soil ; Spatial discrimination ; Spatial resolution ; Stream water ; Transit time ; Urban environments ; urbanisation ; Urbanization ; Water ; water ages
É parte de: Isotopes in environmental and health studies, 2022-06, Vol.58 (3), p.277-300
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Descrição: Stable water isotopes are invaluable in helping understand catchment functioning and are widely used in experimental catchments, with higher frequency data becoming increasingly common. Such datasets incur substantial logistical costs, reducing their feasibility for use by decision makers needing to understand multi-catchment, landscape-scale functioning over a relatively short period to assess the impact of proposed land use change. Instead, reconnaissance style surveys (high spatial resolution across the landscape at a lower temporal frequency, over a relatively short period) offer an alternative, complementary approach. To test if such sampling could identify heterogeneities in hydrological functioning, and associated landscape controls, we sampled 27 stream sites fortnightly for one year within a peri-urban landscape undergoing land use change. Visual examination of raw data and application of mean transit time and young water fraction models indicated urbanisation, agriculture and responsive soils caused more rapid cycling of precipitation to stream water, whereas mature forestry provided attenuation. We were also able to identify contiguous catchments which functioned fundamentally differently, meaning their response to land use alteration would also be different. This study demonstrated how stable water isotopes can be a valuable, low-cost addition to tools available for environmental decision makers by providing local, process-based information.
Editor: England: Taylor & Francis
Idioma: Inglês;Alemão;Russo

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Assessing land use influences on isotopic variability and stream water ages in urbanising rural catchments

Stevenson, Jamie Lee ; Geris, Josie ; Birkel, Christian ; Tetzlaff, Doerthe ; Soulsby, Chris

England: Taylor & Francis

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