Fractal parameters of soil particle size distribution in karst area, and implications of soil water repellency by plantations
As a critical and universal soil physical property, soil water repellency significantly affects soil and water erosion and vegetation restoration, particularly in the karst region. This study analysed soil properties, namely, particle size distribution (PSD) in abandoned farmland and different plant...
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Czech Academy of Agricultural Sciences
2025-04-01
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| Series: | Soil and Water Research |
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| Online Access: | https://swr.agriculturejournals.cz/artkey/swr-202502-0003_fractal-parameters-of-soil-particle-size-distribution-in-karst-area-and-implications-of-soil-water-repellency.php |
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| author | Zhuo Tian Haitao Deng Shuaipu Zhang Qinxue Xu Xin Jin |
| author_facet | Zhuo Tian Haitao Deng Shuaipu Zhang Qinxue Xu Xin Jin |
| author_sort | Zhuo Tian |
| collection | DOAJ |
| description | As a critical and universal soil physical property, soil water repellency significantly affects soil and water erosion and vegetation restoration, particularly in the karst region. This study analysed soil properties, namely, particle size distribution (PSD) in abandoned farmland and different plantations in karst areas, and their impact on water repellency to provide references for its ecological restoration. First, for the shaddock plantation, citrus plantation, ginkgo plantation, Robinia pseudoacacia plantation, and abandoned farmland, the research objects, soil particle size and water drop penetration time were measured, and the fractal parameters of soil PSD were computed. Soil PSD characteristics' influence on water repellency was inferred according to, for example, correlation, redundancy, and stepwise regression analyses. Sand content in the shaddock plantation and clay content in the citrus plantation was the highest. The soil particles of abandoned farmland and plantations were primarily sand. The values of volume dimension D(0) in descending order were citrus plantation, shaddock plantation, ginkgo plantation, R. pseudoacacia plantation, and abandoned farmland. The values of information dimension D(1), correlation dimension D(2), and information dimension/volume dimension D(1)/D(0) in descending order were R. pseudoacacia plantation, ginkgo plantation, citrus plantation, abandoned farmland, and shaddock plantation. No significant differences were found in the symmetry degree Df, the spectral width Da of the singular spectral function, and the single fractal dimension D among the abandoned farmland and different plantations. Slight water repellency was observed in the abandoned farmland and different plantations. The degree of water repellency in descending order was R. pseudoacacia plantation > ginkgo plantation > abandoned farmland > citrus plantation > shaddock plantation. Significant correlations were found between fractal parameters and water repellency, and fractal parameters were suitable potential indicators for soil water repellency. |
| format | Article |
| id | doaj-art-b247eea7019241bb9f3b50fdea16b6f8 |
| institution | DOAJ |
| issn | 1801-5395 1805-9384 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Czech Academy of Agricultural Sciences |
| record_format | Article |
| series | Soil and Water Research |
| spelling | doaj-art-b247eea7019241bb9f3b50fdea16b6f82025-08-20T03:08:38ZengCzech Academy of Agricultural SciencesSoil and Water Research1801-53951805-93842025-04-012029310410.17221/84/2024-SWRswr-202502-0003Fractal parameters of soil particle size distribution in karst area, and implications of soil water repellency by plantationsZhuo Tian0Haitao Deng1Shuaipu Zhang2Qinxue Xu3Xin Jin4College of Agricultural Science and Engineering, Hohai University, Nanjing, Jiangsu, P.R. ChinaGuangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin, Guangxi, P.R. of ChinaGuangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin, Guangxi, P.R. of ChinaGuangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin, Guangxi, P.R. of ChinaGuangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin, Guangxi, P.R. of ChinaAs a critical and universal soil physical property, soil water repellency significantly affects soil and water erosion and vegetation restoration, particularly in the karst region. This study analysed soil properties, namely, particle size distribution (PSD) in abandoned farmland and different plantations in karst areas, and their impact on water repellency to provide references for its ecological restoration. First, for the shaddock plantation, citrus plantation, ginkgo plantation, Robinia pseudoacacia plantation, and abandoned farmland, the research objects, soil particle size and water drop penetration time were measured, and the fractal parameters of soil PSD were computed. Soil PSD characteristics' influence on water repellency was inferred according to, for example, correlation, redundancy, and stepwise regression analyses. Sand content in the shaddock plantation and clay content in the citrus plantation was the highest. The soil particles of abandoned farmland and plantations were primarily sand. The values of volume dimension D(0) in descending order were citrus plantation, shaddock plantation, ginkgo plantation, R. pseudoacacia plantation, and abandoned farmland. The values of information dimension D(1), correlation dimension D(2), and information dimension/volume dimension D(1)/D(0) in descending order were R. pseudoacacia plantation, ginkgo plantation, citrus plantation, abandoned farmland, and shaddock plantation. No significant differences were found in the symmetry degree Df, the spectral width Da of the singular spectral function, and the single fractal dimension D among the abandoned farmland and different plantations. Slight water repellency was observed in the abandoned farmland and different plantations. The degree of water repellency in descending order was R. pseudoacacia plantation > ginkgo plantation > abandoned farmland > citrus plantation > shaddock plantation. Significant correlations were found between fractal parameters and water repellency, and fractal parameters were suitable potential indicators for soil water repellency.https://swr.agriculturejournals.cz/artkey/swr-202502-0003_fractal-parameters-of-soil-particle-size-distribution-in-karst-area-and-implications-of-soil-water-repellency.phpmultifractal single fractalsoil particle sizewater repellency |
| spellingShingle | Zhuo Tian Haitao Deng Shuaipu Zhang Qinxue Xu Xin Jin Fractal parameters of soil particle size distribution in karst area, and implications of soil water repellency by plantations Soil and Water Research multifractal single fractal soil particle size water repellency |
| title | Fractal parameters of soil particle size distribution in karst area, and implications of soil water repellency by plantations |
| title_full | Fractal parameters of soil particle size distribution in karst area, and implications of soil water repellency by plantations |
| title_fullStr | Fractal parameters of soil particle size distribution in karst area, and implications of soil water repellency by plantations |
| title_full_unstemmed | Fractal parameters of soil particle size distribution in karst area, and implications of soil water repellency by plantations |
| title_short | Fractal parameters of soil particle size distribution in karst area, and implications of soil water repellency by plantations |
| title_sort | fractal parameters of soil particle size distribution in karst area and implications of soil water repellency by plantations |
| topic | multifractal single fractal soil particle size water repellency |
| url | https://swr.agriculturejournals.cz/artkey/swr-202502-0003_fractal-parameters-of-soil-particle-size-distribution-in-karst-area-and-implications-of-soil-water-repellency.php |
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