| 引用本文: | 阳 扬,翟禄新,贾艳红,等.概念水文模型在漓江流域的适用性研究[J].灌溉排水学报,2022,41(12):131-138. |
| YANG Yang,ZHAI Luxin,JIA Yanhong,et al.概念水文模型在漓江流域的适用性研究[J].灌溉排水学报,2022,41(12):131-138. |
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| 摘要: |
| 【目的】研究不同模型在漓江流域的适用情况。【方法】本文选用45个概念性水文模型模拟漓江流域2008—2016年日径流量，从模型的结构特征、蒸散发以及产汇流计算等方面对模型进行比较分析，以揭示模型在流域适用性的主要影响因素。【结果】MODHYDROLOG模型作为漓江流域及相似流域水文模拟的最优选择，GR4J、IHACRES和Hillslope等模型也作为推荐模型。同时，径流模拟精度低的模型在模拟实际蒸散发和径流成分等方面存在明显偏差，其中实际蒸散发的模拟不是径流模拟精度的决定性因素，而径流成分的划分则是影响模型适用性的关键因素。此外，概化处理后的半分布式模型简化了运算过程的同时也会一定程度上影响模拟精度。【结论】MODHYDROLOG、GR4J、IHACRES和Hillslope等模型作为漓江流域及相似流域水文模拟的推荐模型。 |
| 关键词: 水文学；模型；适用性；流域 |
| DOI：10.13522/j.cnki.ggps.2022018 |
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| Comparison of Conceptual Hydrological Models for Lijiang River Basin |
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YANG Yang, ZHAI Luxin, JIA Yanhong, XUE Kaiyuan
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1. School of Environment and Resources, Guangxi Normal University, Guilin 541004, China; 2. Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Guilin 541004, China; 3. Guangxi Key Laboratory of Landscape Resources Conservation and Sustainable Utilization in Lijiang River Basin, Guilin 541004, China
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| Abstract: |
| 【Background and objective】Hydrological process is a complex phenomenon and affected by many biological and physical processes. Its modelling in water resource management and decision-making in watershed or catchment is often based on conceptual models where the complicated processes that directly or indirectly modulate water flow in different components are highly simplified. Such models are mathematically simple and have been widely used in both practical and scientific communities. Different conceptual hydrological models are available, but how they compare with each other for simulating hydrological processes in watersheds is not well studied. The purpose of this paper is to fill this gap.【Method】We compared 45 conceptual hydrological models for their application in the Lijiang River Basin. For each model, we simulated daily runoff in the basin from 2008 to 2016 using the same dataset, and compared and analyzed their performance in terms of model structure, calculated evapotranspiration and runoff, from which we identified main factors which affect model applicability and accuracy most.【Result】MODHYDROLOG was the model that worked best for simulating hydrological flow in the basin, followed by GR4J, IHACRES and Hillslope models. Model which was least accurate for simulating runoff did not work well for modelling real evapotranspiration and other runoff components neither. An accurate evapotranspiration calculation was not decisive for accurate runoff simulation, and dividing the runoff into different components was the key factor in applicability and accuracy of the models. We also found that the generalized semi-distributed model not only simplified the operation process of the model, but also affected the simulation accuracy. 【Conclusion】Among the 45 conceptual models we compared, MODHYDROLOG, GR4J, IHACRES and Hillslope models worked best for simulating hydrological processes in the Lijiang River Basin and similar basins. |
| Key words: hydrology; models; applicability; basin |
