Author
Listed:
- Xianfei Shen
(School of Construction Engineering, Yunnan Agricultural University, Kunming 650201, China)
- Lina Wang
(School of Construction Engineering, Yunnan Agricultural University, Kunming 650201, China)
- Xuemin Pan
(School of Construction Engineering, Yunnan Agricultural University, Kunming 650201, China)
- Bijin Yang
(School of Construction Engineering, Yunnan Agricultural University, Kunming 650201, China)
- Jiayuan Han
(School of Construction Engineering, Yunnan Agricultural University, Kunming 650201, China)
- Lianxing Zhang
(School of Water Conservancy, Yunnan Agricultural University, Kunming 650201, China)
Abstract
This paper found that environmentally friendly guar gum biopolymers are helpful for stopping the erosion of basalt residual-soil shallow slopes, while also improving the problems of poor stability, difficult growth of early vegetation, and weak initial resistance to the rainfall scouring of these slopes under extreme climatic conditions. Then, to illustrate the effects of the guar gum treatment, laboratory tests have been conducted, including a soil strength test, water retention and water absorption tests, a disintegration test, and a simulated rainfall erosion test, and the pattern of its effect on vegetation growth has been explored. The results indicate that as the content of guar gum increases, both the cohesion and angle of internal friction exhibit a trend of first increasing and then decreasing; the angle of internal friction varies within a range of 21° to 26°. The evaporation rate, water absorption rate, and disintegration rate of this guar gum-treated soil were significantly reduced, while the cracking of the surface layer was significantly improved. The disintegration rate of the soil is only about 2%, as the guar gum content is greater than 1%. Moreover, there is no sign indicating that vegetation germination was affected by the guar gum, meaning that it maintains a favorable environment for vegetation to grow. Guar gum-cured slopes were significantly protected under heavy rainfall washout conditions, with a 94.85% reduction in total soil loss from the slope surface compared to untreated slopes. Since the pores of soil are filled with guar gum hydrogel, the erosion resistance of soil is greatly enhanced. The results of this study will provide a scientific basis for engineering the protection of shallow slopes of basalt residual soils.
Suggested Citation
Xianfei Shen & Lina Wang & Xuemin Pan & Bijin Yang & Jiayuan Han & Lianxing Zhang, 2024.
"Application of Guar Gum Treatment of Basalt Residual-Soil Shallow Slope in Early Ecological Restoration,"
Sustainability, MDPI, vol. 16(15), pages 1-17, August.
Handle:
RePEc:gam:jsusta:v:16:y:2024:i:15:p:6676-:d:1449812
Download full text from publisher
Corrections
All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jsusta:v:16:y:2024:i:15:p:6676-:d:1449812. See general information about how to correct material in RePEc.
If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.
We have no bibliographic references for this item. You can help adding them by using this form .
If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .
Please note that corrections may take a couple of weeks to filter through
the various RePEc services.