Abstract
In order to analyze the condition of special landform and regularity of special hydrological movement in karst area, the method of Geomorphologic Instantaneous Unit Hydrograph (GIUH) has been used to divide the river networks into three grades in the research area and the karst hydrologic processes were simulated with Nash instantaneous unit hydrography(NIUH). The combination of the GIUH and NIUH fully considers the moving path of water particles in drainage and the regional composition of runoff at the end of the drainage, resulting in a rational combination of probability of GIUH and NIUH and geomorphologic parameters which could reflect the complexity of the landform structure of karst drainage. The results showed that the combined method of GIUH and NIUH has clear physical concept and acceptable precision, which can be widely applied on hydrological studies of karst area.
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Foundation item: Supported by the National Natural Science Foundation of China(No. 49070010).
Biography: WANG La-chun(1963 - ), male, a native of Jintan City of Jiangsu Province, Ph. D., associate professor. His main research interests include water resources and water environment. E-mail: wang6312@263.net.cn
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Wang, Lc., Zhang, Jx., Zhou, Yk. et al. Approach of deterministic geomorphologic instrantaneous unit hydrograph to hydrological processes’ simulation in Karst area. Chin. Geograph.Sc. 12, 354–358 (2002). https://doi.org/10.1007/s11769-002-0042-8
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DOI: https://doi.org/10.1007/s11769-002-0042-8