Evaluating ecohydrological driving factors controlling the hydrology of the Wuijang River Basin, China

IF 2.7 4区环境科学与生态学 Q2 Environmental Science

Hydrology Research Pub Date : 2023-07-12 DOI:10.2166/nh.2023.004

Hao Chen, Wenxian Guo, Jianqing Ma, Yicheng Fu, Baoliang Wang

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引用次数: 0

Abstract

River hydrology is an important proxy for changes in river runoff and an important factor affecting the ecology of rivers. To quantitatively evaluate the hydrology of the Wuijang River basin, this paper uses various tests to analyze runoff. The IHA-RVA method combined with FDC ecohydrological indicators was used to evaluate the hydrology of the Wuijang River basin and to analyze and calculate the contribution of human activities and climate change to runoff. The results show that (1) the runoff in the Wujiang River basin has shown a decreasing trend over the years, with a sudden change in 2005 and mainly two inter-annual cycles; (2) the overall hydrological change in runoff is 48%, which is a moderate change. (3) The changes in FDC ecological indicators are significantly correlated with rainfall, and the correlation between FDC ecological indicators and IHA hydrological indicators is strong; (4) human activities are the main influencing factors of runoff changes in the Wujiang River. The results of this paper have some reference value for the management of the Wujiang River basin and the improvement and restoration of river ecology.

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芜江流域水文的生态水文驱动因子评价

河流水文是河流径流量变化的重要指标，也是影响河流生态的重要因素。为了定量评价舞江流域的水文状况，本文采用多种试验方法对流域径流进行了分析。采用IHA-RVA方法，结合FDC生态水文指标，对舞江流域进行了水文评价，分析计算了人类活动和气候变化对径流量的贡献。结果表明：（1）乌江流域径流量多年来呈下降趋势，2005年出现突变，主要有两个年际周期；（2）径流的总体水文变化为48%，属于中等变化。（3） FDC生态指标的变化与降雨量显著相关，FDC生态指数与IHA水文指标的相关性较强；（4）人类活动是影响乌江径流量变化的主要因素。研究结果对乌江流域治理和河流生态的改善与恢复具有一定的参考价值。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Hydrology Research Environmental Science-Water Science and Technology

CiteScore

5.30

自引率

7.40%

发文量

审稿时长

17 weeks

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.