Cyclic loading changes the taproot's tensile properties and reinforces the soil via the shrub's taproot in semi-arid areas, China
Abstract This study aimed to reveal the soil reinforcement by shrub root systems after repeated stress from external forces, such as high winds and runoff, for extended periods in the wind-hydraulic compound erosion zone. Using the widely distributed Shandong mine area soil and water-conserving plan...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2024-01-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-024-52740-x |
| _version_ | 1797276551090274304 |
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| author | Jinghua Hu Xin Zhang Maolin Yan Luyi Bai Shusen Wang Bo Wang Jing Liu Yong Gao |
| author_facet | Jinghua Hu Xin Zhang Maolin Yan Luyi Bai Shusen Wang Bo Wang Jing Liu Yong Gao |
| author_sort | Jinghua Hu |
| collection | DOAJ |
| description | Abstract This study aimed to reveal the soil reinforcement by shrub root systems after repeated stress from external forces, such as high winds and runoff, for extended periods in the wind-hydraulic compound erosion zone. Using the widely distributed Shandong mine area soil and water-conserving plant species, Caragana microphylla, Hippophae rhamnoides, and Artemisia ordosica, cyclic loading tests were conducted on taproots of the three plant species (1–5 mm diameter) via a TY8000 servo-type machine to investigate the taproots’ tensile properties response to repeated loading–unloading using simulated high wind pulling and runoff scouring. Our study revealed that the tensile force was positively correlated with the root diameter but the tensile strength was negatively correlated under monotonic and cyclic loading of the three plants’ taproots. However, after cyclic loading, the three plant species' taproots significantly enhanced the tensile force and strength more than monotonic loading (P < 0.05). The taproot force–displacement hysteresis curves of the three plant species revealed obvious cyclic characteristics. Structural equation modeling analysis revealed that root diameter and damage method directly affected the taproots' survival rate, reflecting their sustainable soil reinforcement capacity. The damage method significantly influenced the soil reinforcement more than the root diameter. Our findings reveal that the plant species' taproots can adapt more to the external environment and enhance their resistance to erosion after natural low perimeter erosion damage, effectively inducing soil reinforcement. Particularly, the taproots of Caragana microphylla have superior soil-fixing ability and can be used for ecological restoration. |
| first_indexed | 2024-03-07T15:29:47Z |
| format | Article |
| id | doaj.art-7bf9796478484fff8f2385dd7a1b6cfa |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-03-07T15:29:47Z |
| publishDate | 2024-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-7bf9796478484fff8f2385dd7a1b6cfa2024-03-05T16:29:26ZengNature PortfolioScientific Reports2045-23222024-01-0114111410.1038/s41598-024-52740-xCyclic loading changes the taproot's tensile properties and reinforces the soil via the shrub's taproot in semi-arid areas, ChinaJinghua Hu0Xin Zhang1Maolin Yan2Luyi Bai3Shusen Wang4Bo Wang5Jing Liu6Yong Gao7College of Desert Control Science and Engineering, Inner Mongolia Agricultural UniversityMinistry of Water Resources, Institute of Water Resource for Pasturing AreaLandscape Environment Department, Inner Mongolia Academy of Forestry ScienceSoil Ecology Department, Inner Mongolia Research Academy of Eco-Environmental SciencesCollege of Desert Control Science and Engineering, Inner Mongolia Agricultural UniversityCollege of Geographical Science, Inner Mongolia Normal UniversityCollege of Desert Control Science and Engineering, Inner Mongolia Agricultural UniversityCollege of Desert Control Science and Engineering, Inner Mongolia Agricultural UniversityAbstract This study aimed to reveal the soil reinforcement by shrub root systems after repeated stress from external forces, such as high winds and runoff, for extended periods in the wind-hydraulic compound erosion zone. Using the widely distributed Shandong mine area soil and water-conserving plant species, Caragana microphylla, Hippophae rhamnoides, and Artemisia ordosica, cyclic loading tests were conducted on taproots of the three plant species (1–5 mm diameter) via a TY8000 servo-type machine to investigate the taproots’ tensile properties response to repeated loading–unloading using simulated high wind pulling and runoff scouring. Our study revealed that the tensile force was positively correlated with the root diameter but the tensile strength was negatively correlated under monotonic and cyclic loading of the three plants’ taproots. However, after cyclic loading, the three plant species' taproots significantly enhanced the tensile force and strength more than monotonic loading (P < 0.05). The taproot force–displacement hysteresis curves of the three plant species revealed obvious cyclic characteristics. Structural equation modeling analysis revealed that root diameter and damage method directly affected the taproots' survival rate, reflecting their sustainable soil reinforcement capacity. The damage method significantly influenced the soil reinforcement more than the root diameter. Our findings reveal that the plant species' taproots can adapt more to the external environment and enhance their resistance to erosion after natural low perimeter erosion damage, effectively inducing soil reinforcement. Particularly, the taproots of Caragana microphylla have superior soil-fixing ability and can be used for ecological restoration.https://doi.org/10.1038/s41598-024-52740-x |
| spellingShingle | Jinghua Hu Xin Zhang Maolin Yan Luyi Bai Shusen Wang Bo Wang Jing Liu Yong Gao Cyclic loading changes the taproot's tensile properties and reinforces the soil via the shrub's taproot in semi-arid areas, China Scientific Reports |
| title | Cyclic loading changes the taproot's tensile properties and reinforces the soil via the shrub's taproot in semi-arid areas, China |
| title_full | Cyclic loading changes the taproot's tensile properties and reinforces the soil via the shrub's taproot in semi-arid areas, China |
| title_fullStr | Cyclic loading changes the taproot's tensile properties and reinforces the soil via the shrub's taproot in semi-arid areas, China |
| title_full_unstemmed | Cyclic loading changes the taproot's tensile properties and reinforces the soil via the shrub's taproot in semi-arid areas, China |
| title_short | Cyclic loading changes the taproot's tensile properties and reinforces the soil via the shrub's taproot in semi-arid areas, China |
| title_sort | cyclic loading changes the taproot s tensile properties and reinforces the soil via the shrub s taproot in semi arid areas china |
| url | https://doi.org/10.1038/s41598-024-52740-x |
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