Yueyang Wang, Yanjun Wang, Yan Wang, Chenxi Li, Q. Ju, Junliang Jin, Xiyuan Deng, Gaoxia Sun, Z. Bao
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引用次数: 0
Abstract
The Hydrologiska Byrans VattenbalansavdeIning (HBV) model is a catchment hydrological model that has been widely applied to hundreds of catchments worldwide. Taking the Nanjuma River Basin which is located in a semi-arid climate zone and has been highly regulated by human activities, as a case, the applicability of the HBV model to the basin was investigated. Results show that (1) due to environmental change, recorded stream flow of the Nanjuma River presented a significant decreasing trend, and the relationship between runoff and precipitation was changed as well, with the correlation coefficient decreasing from 0.58 in the natural period of 1961–1979 to 0.01 in a highly regulated period of 2000–2018. (2) The HBV model performs well on daily and monthly discharge simulation for the natural period with the Nash–Sutcliffe efficiency (NSE) coefficients in calibration and validation periods of 0.63 and 0.81 for daily discharge simulation. (3) The HBV model's applicability would like to decrease when the Nanjuma River Basin was moderately and intensively regulated by human activities. The daily-scale NSEs in moderate-disturbance and intensive-disturbance phases are 0.42 and −0.3, which means the HBV model almost lost its capacity in capturing hydrological features for a highly regulated catchment.
期刊介绍:
Hydrology Research provides international coverage on all aspects of hydrology in its widest sense, and welcomes the submission of papers from across the subject. While emphasis is placed on studies of the hydrological cycle, the Journal also covers the physics and chemistry of water. Hydrology Research is intended to be a link between basic hydrological research and the practical application of scientific results within the broad field of water management.