Application of Lignin for Slope Bioengineering: Effect on Soil Improvement and Plant Growth
This study aims to establish whether lignin-treated soils could result in greater soil strength and stimulate seed germination and growth, which can be essential for slope bioengineering. Three different soil types with a range of plasticity were treated with lignin solutions of 1% and 3%. The chang...
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MDPI AG
2025-04-01
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| Online Access: | https://www.mdpi.com/2076-3417/15/8/4173 |
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| author | Ivan Gratchev Qianhao Tang Stephen Akosah Jun Sugawara |
| author_facet | Ivan Gratchev Qianhao Tang Stephen Akosah Jun Sugawara |
| author_sort | Ivan Gratchev |
| collection | DOAJ |
| description | This study aims to establish whether lignin-treated soils could result in greater soil strength and stimulate seed germination and growth, which can be essential for slope bioengineering. Three different soil types with a range of plasticity were treated with lignin solutions of 1% and 3%. The changes in soil strength and seed growth were observed for 40 days to simulate the long-term field performance. Two methods to treat the soils were employed: Method 1 involved mixing lignin solutions with the whole soil sample, while Method 2 involved spraying the lignin solutions on the already-prepared soil sample. The results indicated that the lignin concentration and the soil treatment method could affect soil strength, whereas soils treated with 3% lignin solution using Method 1 consistently produced greater soil strength values. The lignin-treated soils were able to retain more moisture at the end of the experiment than the untreated soils. Both lignin-treated and untreated soils produced similar results on seed germination and growth, suggesting that lignin does not have a negative effect on slope bioengineering. |
| format | Article |
| id | doaj-art-36f89f41058d4edd9ed8a5b6eda73e65 |
| institution | OA Journals |
| issn | 2076-3417 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj-art-36f89f41058d4edd9ed8a5b6eda73e652025-08-20T02:17:19ZengMDPI AGApplied Sciences2076-34172025-04-01158417310.3390/app15084173Application of Lignin for Slope Bioengineering: Effect on Soil Improvement and Plant GrowthIvan Gratchev0Qianhao Tang1Stephen Akosah2Jun Sugawara3Griffith School of Engineering and Built Environment, Griffith University, Queensland 4222, AustraliaGriffith School of Engineering and Built Environment, Griffith University, Queensland 4222, AustraliaGriffith School of Engineering and Built Environment, Griffith University, Queensland 4222, AustraliaGriffith School of Engineering and Built Environment, Griffith University, Queensland 4222, AustraliaThis study aims to establish whether lignin-treated soils could result in greater soil strength and stimulate seed germination and growth, which can be essential for slope bioengineering. Three different soil types with a range of plasticity were treated with lignin solutions of 1% and 3%. The changes in soil strength and seed growth were observed for 40 days to simulate the long-term field performance. Two methods to treat the soils were employed: Method 1 involved mixing lignin solutions with the whole soil sample, while Method 2 involved spraying the lignin solutions on the already-prepared soil sample. The results indicated that the lignin concentration and the soil treatment method could affect soil strength, whereas soils treated with 3% lignin solution using Method 1 consistently produced greater soil strength values. The lignin-treated soils were able to retain more moisture at the end of the experiment than the untreated soils. Both lignin-treated and untreated soils produced similar results on seed germination and growth, suggesting that lignin does not have a negative effect on slope bioengineering.https://www.mdpi.com/2076-3417/15/8/4173biopolymerstabilizationvegetationligninsoil strength |
| spellingShingle | Ivan Gratchev Qianhao Tang Stephen Akosah Jun Sugawara Application of Lignin for Slope Bioengineering: Effect on Soil Improvement and Plant Growth Applied Sciences biopolymer stabilization vegetation lignin soil strength |
| title | Application of Lignin for Slope Bioengineering: Effect on Soil Improvement and Plant Growth |
| title_full | Application of Lignin for Slope Bioengineering: Effect on Soil Improvement and Plant Growth |
| title_fullStr | Application of Lignin for Slope Bioengineering: Effect on Soil Improvement and Plant Growth |
| title_full_unstemmed | Application of Lignin for Slope Bioengineering: Effect on Soil Improvement and Plant Growth |
| title_short | Application of Lignin for Slope Bioengineering: Effect on Soil Improvement and Plant Growth |
| title_sort | application of lignin for slope bioengineering effect on soil improvement and plant growth |
| topic | biopolymer stabilization vegetation lignin soil strength |
| url | https://www.mdpi.com/2076-3417/15/8/4173 |
| work_keys_str_mv | AT ivangratchev applicationofligninforslopebioengineeringeffectonsoilimprovementandplantgrowth AT qianhaotang applicationofligninforslopebioengineeringeffectonsoilimprovementandplantgrowth AT stephenakosah applicationofligninforslopebioengineeringeffectonsoilimprovementandplantgrowth AT junsugawara applicationofligninforslopebioengineeringeffectonsoilimprovementandplantgrowth |