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Effects of Tree Root Density on Soil Total Porosity and Non-Capillary Porosity Using a Ground-Penetrating Tree Radar Unit in Shanghai, China

Author

Listed:
  • Bingqin Yu

    (Department of Landscape Architecture, School of Design, Shanghai Jiao Tong University, Shanghai 200240, China)

  • Changkun Xie

    (Department of Landscape Architecture, School of Design, Shanghai Jiao Tong University, Shanghai 200240, China)

  • Shize Cai

    (Guangdong Poly Real Estate Development Co., Ltd, Guangdong 510308, China)

  • Yan Chen

    (Shanghai Municipal Engineering Design Institute (Group) Co., Ltd, Shanghai 200092, China)

  • Yongpeng Lv

    (Shanghai Municipal Engineering Design Institute (Group) Co., Ltd, Shanghai 200092, China)

  • Zulan Mo

    (Shanghai Municipal Engineering Design Institute (Group) Co., Ltd, Shanghai 200092, China)

  • Tianlei Liu

    (Department of Landscape Architecture, School of Design, Shanghai Jiao Tong University, Shanghai 200240, China)

  • Zhiwen Yang

    (Department of Landscape Architecture, School of Design, Shanghai Jiao Tong University, Shanghai 200240, China)

Abstract

To explore the relationship between arbor root density and corresponding physical soil properties (total porosity, non-capillary porosity, specific weight, bulk density, moisture content, and permeability), noninvasive methods such as Tree Radar Unit (TRU) were utilized to detect the root systems of 10 species of tree that are commonly used in Shanghai green spaces with more than 70% frequency of occurrence. Using TRU and soil investigation, root density and soil porous features were determined for different tree species, depth slices, and distances. The relationships among root density, soil porosity, and non-capillary porosity were identified using variance analysis and regression analysis. The results indicated that root density decreased with increasing distance from the trunk and soil depth. Soil porosity and non-capillary porosity had significantly positive and linear correlations with root density. Compared with lawns, trees such as Zelkova serrata, Koelreuteria paniculata, Cinnamomum camphora, and Metasequoia glyptostroboides had the greatest effects on soil improvement through soil porosity and non-capillary porosity. Due to the spatial distribution of root systems, trees could be divided into three types based on their influence at various soil depths.

Suggested Citation

  • Bingqin Yu & Changkun Xie & Shize Cai & Yan Chen & Yongpeng Lv & Zulan Mo & Tianlei Liu & Zhiwen Yang, 2018. "Effects of Tree Root Density on Soil Total Porosity and Non-Capillary Porosity Using a Ground-Penetrating Tree Radar Unit in Shanghai, China," Sustainability, MDPI, vol. 10(12), pages 1-19, December.
    • Handle: RePEc:gam:jsusta:v:10:y:2018:i:12:p:4640-:d:188463
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    Citations

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    Cited by:

    1. Ivan Suchara & Julie Sucharová & Marie Holá, 2021. "Changes in selected physico-chemical properties of floodplain soils in three different land-use types after flooding," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 67(2), pages 99-109.
    2. Hao-Zhang Pan & Sheng-Jung Ou & Che-Yu Hsu, 2022. "Exploring the Resilience Park Index from the Perspective of Flood and Wind Disasters," Sustainability, MDPI, vol. 14(9), pages 1-23, May.
    3. Yingming Yang & Xikai Wang & Yunlan He & Kaiming Zhang & Fan Mo & Weilong Zhang & Gang Liu, 2022. "Using Isotopic Labeling to Investigate Artemisia ordosica Root Water Uptake Depth in the Eastern Margin of Mu Us Sandy Land," Sustainability, MDPI, vol. 14(22), pages 1-16, November.

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