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| DOI | 10.2166/wcc.2024.402 |
| Evaluation of hydrological regime alteration and ecological flow processes in the changing environment of the Jialing River, China | |
| 发表日期 | 2024 |
| ISSN | 2040-2244 |
| EISSN | 2408-9354 |
| 起始页码 | 15 |
| 结束页码 | 3 |
| 卷号 | 15期号:3 |
| 英文摘要 | Ecological flow is a key element in maintaining the biodiversity of a basin's aquatic ecosystem. This study quantifies the degree of hydrological regime alteration in the Jialing River and the contributions of various driving factors using the indicators of hydrologic alteration and range of variability approach (IHA-RVA), the river impact method (RI), and the elasticity coefficient method based on long-term hydro-meteorological data. Cross-wavelet analysis is used to reveal the periodicity and coherence of runoff and driving factors. Additionally, the improved Q(90) method presents a more effective annual ecological flow process. The results show that the overall hydrological regime in the Jialing River has undergone a moderate change, with RVA and RI values of 45.02% and 0.66. Human activities contribute 54.68% to the changes in streamflow. Streamflow has an extremely significant correlation with precipitation and aridity index (phi). Approximately 85% of the wavelet cone of influence (COI) area, tested at a 95% confidence level, falls within the region. The study also found that the ecological flow obtained through the improved Q(90) method is more conducive to the healthy development of the river ecosystem in the Jialing River. These findings can provide some assistance for aquatic ecosystem restoration in the Jialing River. |
| 英文关键词 | climate change; guarantee degree; human activities; Jialing River; periodicity and coherence |
| 语种 | 英语 |
| WOS研究方向 | Water Resources |
| WOS类目 | Water Resources |
| WOS记录号 | WOS:001174214800001 |
| 来源期刊 | JOURNAL OF WATER AND CLIMATE CHANGE
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/295679 |
| 作者单位 | North China University of Water Resources & Electric Power |
| 推荐引用方式 GB/T 7714 | . Evaluation of hydrological regime alteration and ecological flow processes in the changing environment of the Jialing River, China[J],2024,15(3). |
| APA | (2024).Evaluation of hydrological regime alteration and ecological flow processes in the changing environment of the Jialing River, China.JOURNAL OF WATER AND CLIMATE CHANGE,15(3). |
| MLA | "Evaluation of hydrological regime alteration and ecological flow processes in the changing environment of the Jialing River, China".JOURNAL OF WATER AND CLIMATE CHANGE 15.3(2024). |
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