Conceptual hydrological model of corrosional hill karst watershed and its application

被引：0
|
作者：
Chen X. [1 ,2 ]
Yan Y. [1 ,2 ]
Li C. [3 ]
Wei R. [4 ]
机构：
[1] Center for Water Resources and Environment, Sun Yat-Sen University, Guangzhou
[2] Key Laboratory of Water Cycle and Water Security in Southern China of Guangdong High Education Institute, Sun Yat-Sen University, Guangzhou
[3] China Water Resources Pearl River Planning Surveying & Designing Co., Ltd., Guangzhou
[4] School of Hydraulic Engineering, Changsha University of Science & Technology, Changsha
来源：
Shuikexue Jinzhan/Advances in Water Science | 2020年 / 31卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Corrosional hill karst watershed; Non-conservative characteristic; Virtual area coefficient of the watershed; Water source partition; Xin'anjiang hydrological model;
D O I：
10.14042/j.cnki.32.1309.2020.01.001
中图分类号：
学科分类号：
摘要：
To mitigate the insufficiency of the traditional hydrological model in karst hydrological simulation, the Xin'anjiang Hydrological Model was modified by reconstructing a heterogeneous groundwater system with linear reservoirs and introducing the virtual area coefficient of the watershed (f) to modify non-conservative characteristics. The modified Karst Hydrological Model was applied to the Chongling River Basin, a typical corrosional hill region of southern Hunan Province, China. In addition, this study focused on dynamic changes of non-conservative characteristics based on the modified model. The results demonstrate the following:① The modified model outperformed the Xin'anjiang Model in karst hydrologic simulation (by 11.21%) especially in water balance (by 23.29%) and low water flow (by 27.64%); ② The non-conservative status of the karst watershed has duality because of the multi-directionality of the underground confluence system; ③ The area of the underground system is positively correlated with precipitation, while the variation of the area decreases with the increase of the precipitation by the constraint of underground saturation; ④ Inter-catchment water exchange exhibits time lag because of the hydration and water retention of karst. © 2020, Editorial Board of Advances in Water Science. All right reserved.
引用
收藏
页码：1 / 9
页数：8
相关论文
共 20 条
  • [1] Liu M., Xu X., Wang D., Et al., Karst catchments exhibited higher degradation stress from climate change than the non-karst catchments in southwest China: an ecohydrological perspective, Journal of Hydrology, 535, pp. 173-180, (2016)
  • [2] Hartmann A., Goldscheider N., Wagener T., Et al., Karst water resources in a changing world: review of hydrological modeling approaches, Reviews of Geophysics, 52, 3, pp. 218-242, (2014)
  • [3] Meng H.H., Wang L.C., Advance in karst hydrological model, Progress in Geography, 29, 11, pp. 1311-1318, (2010)
  • [4] Wang L.C., Shi Y.L., Formation process and rational use of water resources and transform of rainfall, surface water and underground water in karst mountainous area in southwest China, Scientia Geographica Sinica, 26, 2, pp. 173-178, (2006)
  • [5] Wu Q.F., Liu S.G., Cai Y., Et al., Effect of unclosed characteristics of the basin on hydrological modeling in karst regions, Journal of Hydraulic Engineering, 48, 4, pp. 457-466, (2017)
  • [6] Liang H., Geomorphological runoff yield mechanism and characteristics of karst drainage basin, Journal of Guizhou Normal University (Natural Science), 14, 2, pp. 23-28, (1995)
  • [7] Zhang J.Y., Zhuang Y.L., Study and application of hydrological model for karst catchments, Journal of Hohai University, 16, 3, pp. 68-79, (1988)
  • [8] Cheng G.W., Xin'anjiang karst hydrology model, Water Resources Power, 9, 2, pp. 139-144, (1991)
  • [9] Hao Q.Q., Chen X., Ma J.L., Improvement and application of Xin'anjiang model in Guizhou karst area, Water Resources Power, 27, 4, pp. 4-6, (2009)
  • [10] Wang L.C., Shi Y.L., Karst water model of non-closed watershed, Advances in Water Science, 6, 4, pp. 318-324, (1995)
12