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Response of Soil Moisture to Single-Rainfall Events under Three Vegetation Types in the Gully Region of the Loess Plateau

Author

Listed:
  • Guirong Hou

    (College of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, China)

  • Huaxing Bi

    (College of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, China
    Beijing Collaborative Innovation Center for Eco-environmental Improvement with Forestry and Fruit Trees, Beijing 102206, China
    Ji County Station, Chinese National Ecosystem Research Network (CNERN), Beijing 100083, China
    Key Laboratory of State Forestry Administration on Soil and Water Conservation, Beijing Forestry University, Beijing 100083, China)

  • Xi Wei

    (Beijing Collaborative Innovation Center for Eco-environmental Improvement with Forestry and Fruit Trees, Beijing 102206, China)

  • Lingxiao Kong

    (College of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, China)

  • Ning Wang

    (College of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, China)

  • Qiaozhi Zhou

    (College of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, China)

Abstract

Precipitation is the main source of soil moisture recharge in the gully region of the Loess Plateau, and soil moisture is the main and most important water resource for vegetation activities in semiarid regions. To identify the contributions to soil moisture replenishment from rainfall of different intensities, this study conducted a soil moisture monitoring experiment involving continuous measurements at 30-min intervals in areas of Robinia pseudoacacia artificial forestland, Pinus tabulaeformis artificial forestland, and grassland from 1 March to 31 November 2017. The results indicated that there was a positive relationship between the infiltration coefficient and precipitation until the relationship obtained a stable value. When the precipitation was greater than 30 mm, soil moisture was replenished up to the 150 cm soil layer in grassland, and when the precipitation was greater than 40 mm, soil moisture was replenished up to the 150 cm soil layer in P. tabulaeformis artificial forestland. However, only precipitation greater than 50 mm replenished the soil moisture at the 150 cm soil layer in R. pseudoacacia artificial forestland. These three vegetation communities play important roles in soil and water conservation during ecological restoration. The results of this study can guide vegetation configurations in vegetation recovery and reconstruction efforts in the gully region of the Loess Plateau.

Suggested Citation

  • Guirong Hou & Huaxing Bi & Xi Wei & Lingxiao Kong & Ning Wang & Qiaozhi Zhou, 2018. "Response of Soil Moisture to Single-Rainfall Events under Three Vegetation Types in the Gully Region of the Loess Plateau," Sustainability, MDPI, vol. 10(10), pages 1-17, October.
    • Handle: RePEc:gam:jsusta:v:10:y:2018:i:10:p:3793-:d:177026
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    References listed on IDEAS

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    1. Shulin Chen & Zuomin Wen & Hong Jiang & Qingjian Zhao & Xiuying Zhang & Yan Chen, 2015. "Temperature Vegetation Dryness Index Estimation of Soil Moisture under Different Tree Species," Sustainability, MDPI, vol. 7(9), pages 1-17, August.
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