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Quantitative Evaluation of the Impact of Vegetation Restoration and Climate Variation on Runoff Attenuation in the Luan River Basin Based on the Extended Budyko Model

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  • Shuaijun Yue

    (College of Resources and Environment, Henan Agricultural University, Zhengzhou 450046, China
    Henan Engineering Research Center of Land Consolidation and Ecological Restoration, Zhengzhou 450046, China)

  • Junchang Huang

    (College of Resources and Environment, Henan Agricultural University, Zhengzhou 450046, China
    Henan Engineering Research Center of Land Consolidation and Ecological Restoration, Zhengzhou 450046, China)

  • Yali Zhang

    (College of Resources and Environment, Henan Agricultural University, Zhengzhou 450046, China
    Henan Engineering Research Center of Land Consolidation and Ecological Restoration, Zhengzhou 450046, China)

  • Weiqiang Chen

    (College of Resources and Environment, Henan Agricultural University, Zhengzhou 450046, China
    Henan Engineering Research Center of Land Consolidation and Ecological Restoration, Zhengzhou 450046, China)

  • Yulong Guo

    (College of Resources and Environment, Henan Agricultural University, Zhengzhou 450046, China
    Henan Engineering Research Center of Land Consolidation and Ecological Restoration, Zhengzhou 450046, China)

  • Mingyue Cheng

    (College of Resources and Environment, Henan Agricultural University, Zhengzhou 450046, China
    Henan Engineering Research Center of Land Consolidation and Ecological Restoration, Zhengzhou 450046, China)

  • Guangxing Ji

    (College of Resources and Environment, Henan Agricultural University, Zhengzhou 450046, China
    Henan Engineering Research Center of Land Consolidation and Ecological Restoration, Zhengzhou 450046, China)

Abstract

The occurrence of water scarcity and extreme hydrological events is becoming increasingly frequent worldwide. The river runoff process, as an important link in the water cycle of a basin, is an essential content of the study of hydrological processes in the basin. Vegetation is an influencing factor closely related to hydrological processes in a watershed. This article quantitatively analyzes the impact of vegetation restoration and climate variation on runoff in the Luan River Basin from 1982 to 2018. Firstly, trend analysis was conducted on runoff depth, precipitation, the Normalized Vegetation Index (NDVI), and reference evaporation. Then, Mann–Kendall mutation analysis and Pettitt mutation analysis were used to identify the year of runoff mutation. Finally, a Budyko model was constructed to quantitatively analyze the impact of vegetation and climate change on the runoff of the Luan River. The results showed that: (1) The runoff reduction rate of the Luan River was 1.2437 mm/a. The precipitation was increasing at a rate of 0.6977 mm/a. The reference evaporation rate decreased at a rate of 0.0977 mm/a. The annual growth rate of the Budyko parameter ( n ) was 0.0283. The annual growth rate of NDVI was 0.0022. (2) The coefficient of determination in the functional equation (a = 14.74, b = −3.4105) for NDVI and Budyko parameter ( n ) was 0.3297 ( p < 0.01). (3) The contributions of Pr , ET 0 , NDVI, and ( n ) to reduced flow were −17.49%, 1.46%, 35.25%, and 80.78%, respectively. The increase in vegetation would lead to a decrease in runoff. This study can clarify the impact of vegetation restoration on water resource security in the Luan River Basin.

Suggested Citation

  • Shuaijun Yue & Junchang Huang & Yali Zhang & Weiqiang Chen & Yulong Guo & Mingyue Cheng & Guangxing Ji, 2023. "Quantitative Evaluation of the Impact of Vegetation Restoration and Climate Variation on Runoff Attenuation in the Luan River Basin Based on the Extended Budyko Model," Land, MDPI, vol. 12(8), pages 1-14, August.
    • Handle: RePEc:gam:jlands:v:12:y:2023:i:8:p:1626-:d:1220058
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    References listed on IDEAS

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    1. Guangxing Ji & Junchang Huang & Yulong Guo & Dan Yan, 2022. "Quantitatively Calculating the Contribution of Vegetation Variation to Runoff in the Middle Reaches of Yellow River Using an Adjusted Budyko Formula," Land, MDPI, vol. 11(4), pages 1-12, April.
    2. Guangxing Ji & Leying Wu & Liangdong Wang & Dan Yan & Zhizhu Lai, 2021. "Attribution Analysis of Seasonal Runoff in the Source Region of the Yellow River Using Seasonal Budyko Hypothesis," Land, MDPI, vol. 10(5), pages 1-14, May.
    3. Domenico Caracciolo & D. Pumo & F. Viola, 2018. "Budyko’s Based Method for Annual Runoff Characterization across Different Climatic Areas: an Application to United States," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 32(9), pages 3189-3202, July.
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    1. Dandan Shen & Yuangang Guo & Bo Qu & Sisi Cao & Yaer Wu & Yu Bai & Yiting Shao & Jinglin Qian, 2024. "Investigation and Simulation Study on the Impact of Vegetation Cover Evolution on Watershed Soil Erosion," Sustainability, MDPI, vol. 16(22), pages 1-15, November.

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