期刊
HYDROLOGICAL PROCESSES
卷 34, 期 15, 页码 3156-3174出版社
WILEY
DOI: 10.1002/hyp.13829
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资金
- National Key Research and development Program of China [2016YFC0502602]
- National Natural Science Foundation of China [41571130071, 41971028]
- UK Natural Environment Research Council [NE/N007468/1]
- NERC [NE/N007468/1] Funding Source: UKRI
Hydrological and biogeochemical processes in karst environments are strongly controlled by heterogeneous fracture-conduit networks. Quantifying the spatio-temporal variability of water transit time and young water fractions in such heterogeneous hydrogeological systems is fundamental to linking discharge and water quality dynamics in the karst critical zone. We used a tracer-aided conceptual hydrological model to track the fate of each hour of rain input individually. Using this approach, the variability of transit time distributions and young water fraction were estimated in the main landscape units in a karst catchment of Chenqi in Guizhou Province, Southwest China. The model predicted that the mean young water (i.e.,
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