Responses of intra-annual runoff to forest recovery patterns in subtropical China

Xu, Zhipeng; Liu, Wenfei; Li, Qiang; Wu, Jianping; Duan, Honglang; Huang, Guomin; Ge, Yingzi

doi:10.1007/s11676-020-01219-2

Cited by 4 publications

(1 citation statement)

References 43 publications

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“…The runoff concentration ratio (C n ) serves as an indicator of the level of concentration within the intra-annual runoff distribution. A higher C n denotes an elevated degree of instability and fluctuation in the characteristics of intra-annual runoff distribution [41,42]. We regard the runoff of each month in a year as a vector, the value is the length of the vector, and the month is the direction of the vector.…”

Section: Nonuniformity Index Of Intra-annual Runoffmentioning

confidence: 99%

Long-Term Variability of the Hydrological Regime and Its Response to Climate Warming in the Zhizdra River Basin of the Eastern European Plain

Bai

Huang

Wang

et al. 2023

Water

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Climate warming globally has a profound effect on the hydrological regime, amplifying evapotranspiration and precipitation and accelerating the processes of snow melt and permafrost thaw. However, in the context of small river basins—those encompassing less than 10,000 km2—the response of the hydrological regime to climate change is intricate and has not yet been thoroughly understood. In this study, the Zhizdra River Basin, a typical small river basin in the eastern European plain with a total drainage area of 6940 km2, was selected to investigate the long-term variability of the hydrological regime and its responses to climate warming. Our results show that during the period of 1958–2016, the average runoff in the Zhizdra River Basin was approximately 170 mm, with significant fluctuations but no trend. Sensitivity analysis by the Budyko framework revealed that the runoff was more sensitive to changes in precipitation (P) compared to potential evapotranspiration (E0), implying that the Zhizdra River Basin is limited by water availability and has a slightly dry trend. A comprehensive analysis based on the seasonality of hydrometeorological data revealed that temperature predominantly affects spring runoff, while P mainly controls autumn runoff. Both factors make significant contributions to winter runoff. In response to climate change, the nonuniformity coefficient (Cv) and concentration ratio (Cn) of runoff have noticeably declined, indicating a more stabilized and evenly distributed runoff within the basin. The insights gleaned from this research illuminate the complex hydrological responses of small river basins to climate change, underlining the intricate interrelation among evapotranspiration, precipitation, and runoff. This understanding is pivotal for efficient water resource management and sustainable development in the era of global warming.

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Section: Nonuniformity Index Of Intra-annual Runoffmentioning

confidence: 99%

Long-Term Variability of the Hydrological Regime and Its Response to Climate Warming in the Zhizdra River Basin of the Eastern European Plain

Bai

Huang

Wang

et al. 2023

Water

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The effects of environmental evolution on runoff and hydrological health variations in the upper Shule River, Northwest China

Jia,

Niu

2024

CATENA

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Optimal Allocation of Slope Ecological Restoration for the Climate Change Mitigation and Natural Function Improvement

Qin

Liu

et al. 2022

Front. Earth Sci.

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The key to dealing with extreme problems at watershed or region scales in the context of climate change is the “de-extremalization” of hydrological processes. The foundation lies in how to optimize the allocation of ecological restoration on slopes to mitigate the extreme impacts of climate change on hydrological processes and improve ecological service functions. Previous studies focused on analyzing the direct effects of slope land use, vegetation distribution, or historical pattern of ecological restoration on runoff processes. This study developed a slope ecological restoration evaluation system to evaluate the naturalness, functional types, and functional coordination of slope ecological restoration at different historical stages and quantitatively identified the mitigation effect on climate change in the future, which was applied to the Huangshui River Basin (above Minhe County) in Qinghai Province, China. Based on the land suitability evaluation methods, a set of layout schemes were constructed. The runoff mutation and ecological function of different schemes under climate change were evaluated, and the highly suitable scheme was selected as the optimal scheme. Compared with the current situation, the coupling coordination degree index of the scheme would increase from 0.32 to 0.59. Meanwhile, the runoff and coefficient of variation would decrease by 30% and 60%, respectively, during the wet season under the high-emission scenario RCP8.5. This study closely links the ecological construction of slopes with the response to extreme climates, which provides technical methods and practical support for the optimization of regional ecological patterns and scientific water governance modes.

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Responses of intra-annual runoff to forest recovery patterns in subtropical China

Cited by 4 publications

References 43 publications

Long-Term Variability of the Hydrological Regime and Its Response to Climate Warming in the Zhizdra River Basin of the Eastern European Plain

Long-Term Variability of the Hydrological Regime and Its Response to Climate Warming in the Zhizdra River Basin of the Eastern European Plain

The effects of environmental evolution on runoff and hydrological health variations in the upper Shule River, Northwest China

Optimal Allocation of Slope Ecological Restoration for the Climate Change Mitigation and Natural Function Improvement

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