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| DOI | 10.2166/nh.2024.031 |
| How does the daily regulation hydropower station reduce the hydrological regime impact? A case study in upper Yellow River | |
| 发表日期 | 2024 |
| ISSN | 1998-9563 |
| EISSN | 2224-7955 |
| 英文摘要 | The regulation of hydropower stations has profoundly altered river flow patterns. While studies have extensively assessed the impact of large or multiyear regulated hydropower stations on hydrological regimes using indicators of hydrological alteration (IHA) and range of variability approach (RVA), the impact of daily regulation hydropower stations has received comparatively less attention. This study aims to evaluate the influence of daily regulation hydropower stations on hydrological regime changes. The analysis focuses on the upper Yellow River region in China, which houses cascade hydropower stations, utilizing daily runoff data from the Guide hydrological station spanning from 1954 to 2020. The Mann-Kendall test revealed 27 of 32 IHAs with a significant trend when considering the operation of the multiyear regulated hydropower station (Longyangxia). However, this number decreased to 18 IHAs when daily regulation hydropower stations (Laxiwa and Nina) were included. Evaluation using the RVA method indicated that only 46.87% of IHAs showed high alterations from the natural regime when considering the operation of daily regulation hydropower stations, a decrease from 75.00% when solely considering Longyangxia. Findings suggest that daily regulation hydropower stations can effectively mitigate the adverse effects of multiyear regulated hydropower stations, bringing the hydrological regime closer to a natural state. HIGHLIGHTS This study contrasts the impacts from multiyear and with daily regulation hydropower stations on hydrological regimes. The supplementary daily regulation tends to mitigate the alterations by multiyear hydropower station. The rate and frequency of runoff change increase with the additional daily operations. Nina and Laxiwa decrease hydrological regime change to 75.24% from 82.29% in the upper Yellow River region. |
| 英文关键词 | controlled hydroelectric power station; daily regulation hydropower station; hydrological regime; indicators of hydrologic alteration IHA); Mann-Kendall test; range of variability approach (RVA) |
| 语种 | 英语 |
| WOS研究方向 | Water Resources |
| WOS类目 | Water Resources |
| WOS记录号 | WOS:001224482800001 |
| 来源期刊 | HYDROLOGY RESEARCH
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/302087 |
| 作者单位 | Xi'an University of Technology; University of Oslo |
| 推荐引用方式 GB/T 7714 | . How does the daily regulation hydropower station reduce the hydrological regime impact? A case study in upper Yellow River[J],2024. |
| APA | (2024).How does the daily regulation hydropower station reduce the hydrological regime impact? A case study in upper Yellow River.HYDROLOGY RESEARCH. |
| MLA | "How does the daily regulation hydropower station reduce the hydrological regime impact? A case study in upper Yellow River".HYDROLOGY RESEARCH (2024). |
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