Articles | Volume 29, issue 10
https://doi.org/10.5194/hess-29-2275-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/hess-29-2275-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Delayed stormflow generation in a semi-humid forested watershed controlled by soil water storage and groundwater dynamics
Zhen Cui
Department of Hydraulic Engineering, State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, China
Department of Hydraulic Engineering, State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, China
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Cited articles
Anderson, M. G. and Burt, T. R.: The role of topography in controlling throughflow generation, Earth Surf. Process., 3, 331–334, https://doi.org/10.1002/esp.3290030402, 1978.
Beiter, D., Weiler, M., and Blume, T.: Characterising hillslope–stream connectivity with a joint event analysis of stream and groundwater levels, Hydrol. Earth Syst. Sci., 24, 5713–5744, https://doi.org/10.5194/hess-24-5713-2020, 2020.
Bishop, K., Seibert, J., Nyberg, L., and Rodhe, A.: Water storage in a till catchment. II: Implications of transmissivity feedback for flow paths and turnover times, Hydrol. Process., 25, 3950–3959, https://doi.org/10.1002/hyp.8355, 2011.
Cui, Z.: Xitaizi Experimental Watershed dataset, Beijing, China, Zenodo [data set], https://doi.org/10.5281/zenodo.12581739, 2024.
Cui, Z., Tian, F., Zhao, Z., Xu, Z., Duan, Y., Wen, J., and Khan, M. Y. A.: Bimodal hydrographs in a semi-humid forested watershed: characteristics and occurrence conditions, Hydrol. Earth Syst. Sci., 28, 3613–3632, https://doi.org/10.5194/hess-28-3613-2024, 2024.
Dang, L., Xie, Y. Q., Wang, C., Chang, Y., Zeng, X. K., and Wu, J. C.: Precipitation-induced Pressure Wave Propagation in Unsaturated Zone and Its Effect on Rapid Groundwater Discharge, Geol. J. China Univ., 29, 580–589, https://doi.org/10.16108/j.issn1006-7493.2021104, 2023.
Detty, J. M. and McGuire, K. J.: Threshold changes in storm runoff generation at a till-mantled headwater catchment, Water Resour. Res., 46, W07525, https://doi.org/10.1029/2009WR008102, 2010.
Farrick, K. K. and Branfireun, B. A.: Soil water storage, rainfall and runoff relationships in a tropical dry forest catchment, Water Resour. Res., 50, 9236–9250, https://doi.org/10.1002/2014WR016045, 2014.
Graeff, T., Zehe, E., Reusser, D., Lück, E., Schröder, B., Wenk, G., John, H., and Bronstert, A.: Process identification through rejection of model structures in a mid-mountainous rural catchment: observations of rainfall-runoff response, geophysical conditions and model inter-comparison, Hydrol. Process., 23, 702–718, https://doi.org/10.1002/hyp.7171, 2009.
Graham, C. B. and McDonnell, J. J.: Hillslope threshold response to rainfall: (2) development and use of a macroscale model, J. Hydrol., 393, 77–93, https://doi.org/10.1016/j.jhydrol.2010.03.008, 2010.
Graham, C. B., Woods, R. A., and McDonnell, J. J.: Hillslope threshold response to rainfall: (1) A field based forensic approach, J. Hydrol., 393, 65–76, https://doi.org/10.1016/j.jhydrol.2009.12.015, 2010.
Haga, H., Matsumoto, Y., Matsutani, J., Fujita, M., Nishida, K., and Sakamoto, Y.: Flow paths, rainfall properties, and antecedent soil moisture controlling lags to peak discharge in a granitic unchanneled catchment, Water Resour. Res., 41, W2179–W2187, https://doi.org/10.1029/2005wr004236, 2005.
Haught, D. R. W. and Meerveld, H. J.: Spatial variation in transient water table responses: differences between an upper and lower hillslope zone, Hydrol. Process., 25, 3866–3877, https://doi.org/10.1002/hyp.8354, 2011.
Hewlett, J. D. and Hibbert, A. R.: Factors affecting the response of small watersheds to precipitation in humid areas, Int. Symp. For. Hydrol., 1, 275–290, https://doi.org/10.1177/0309133309338118, 1967.
Kendall, K. A., Shanley, J. B., and McDonnell, J. J.: A hydrometric and geochemical approach to test the transmissivity feedback hypothesis during snowmelt, J. Hydrol., 219, 188–205, https://doi.org/10.1016/S0022-1694(99)00059-1, 1999.
Kosugi, K., Fujimoto, M., Katsura, S., Kato, H., Sando, Y., and Mizuyama, T.: Localized bedrock aquifer distribution explains discharge from a headwater catchment, Water Resour. Res., 47, W07111, https://doi.org/10.1029/2010WR009884, 2011.
Lundin, L.: Soil moisture and ground water in till soil and the significance of soil type for runoff, PhD Thesis, Uppsala University, UNGI Report No. 56, 216 pp., 1982.
Martínez-Carreras, N., Hissler, C., Gourdol, L., Klaus, J., Juilleret, J., Iffly, J. F., and Pfister, L.: Storage controls on the generation of double peak hydrographs in a forested headwater catchment, J. Hydrol., 543, 255–269, https://doi.org/10.1016/j.jhydrol.2016.10.004, 2016.
McDonnell, J. J., Spence, C., Karran, D. J., Van Meerveld, H. J., and Harman, C. J.: Fill-and-spill: A process description of runoff generation at the scale of the beholder, Water Resour. Res., 57, e2020WR027514, https://doi.org/10.1029/2020WR027514, 2021.
Padilla, C., Onda, Y., and Iida, T.: Interaction between runoff–bedrock groundwater in a steep headwater catchment underlain by sedimentary bedrock fractured by gravitational deformation, Hydrol. Process., 29, 4398–4412, https://doi.org/10.1002/hyp.10498, 2015.
Penna, D., Tromp-van Meerveld, H. J., Gobbi, A., Borga, M., and Dalla Fontana, G.: The influence of soil moisture on threshold runoff generation processes in an alpine headwater catchment, Hydrol. Earth Syst. Sci., 15, 689–702, https://doi.org/10.5194/hess-15-689-2011, 2011.
Rinderer, M., van Meerveld, I., Stähli, M., and Seibert, J.: Is groundwater response timing in a pre-alpine catchment controlled more by topography or by rainfall?, Hydrol. Process., 30, 1036–1051, https://doi.org/10.1002/hyp.10634, 2016.
Scaife, C. I., Singh, N. K., Emanuel, R. E., Miniat, C. F., and Band, L. E.: Non-linear quickflow response as indicators of runoff generation mechanisms, Hydrol. Process., 34, 2949–2964, https://doi.org/10.1002/hyp.13780, 2020.
Sloto, R. A. and Crouse, M. Y.: HYSEP: A computer program for streamflow hydrograph separation and analysis, US Geol. Surv., https://doi.org/10.3133/wri964040, 1996.
Tian, F., Li, H., and Sivapalan, M.: Model diagnostic analysis of seasonal switching of runoff generation mechanisms in the blue river basin, Oklahoma, J. Hydrol., 418–419, 136–149, https://doi.org/10.1016/j.jhydrol.2010.03.011, 2012.
Tromp-van Meerveld, H. J. and McDonnell, J. J.: Threshold relations in subsurface stormflow: 1. A 147-storm analysis of the Panola hillslope, Water Resour. Res., 42, W02410, https://doi.org/10.1029/2004WR003778, 2006a.
Tromp-van Meerveld, H. J. and McDonnell, J. J.: Threshold relations in subsurface stormflow: 2. The fill and spill hypothesis, Water Resour. Res., 42, W02411, https://doi.org/10.1029/2004WR003800, 2006b.
Short summary
This study investigates stormflow patterns in a forested watershed in north China, highlighting the fact that delayed stormflow is governed by soil water content (SWC) and groundwater level (GWL). When SWC exceeds its storage capacity, excess water infiltrates, recharging groundwater and gradually elevating GWL. Rising GWL enhances subsurface connectivity and lateral flow, synchronizing watershed responses and, in extreme cases, causing a delayed stormflow peak to merge with the direct stormflow peak.
This study investigates stormflow patterns in a forested watershed in north China, highlighting...