Effects of Artificial Cyanobacterial Crust on Soil Wind Erosion Control in Arid Regions
[Objective] The influence factors of artificial cyanobacterial crust on soil threshold wind velocity and wind erosion rate, and the effects of wind erosion prevention and control were analyzed, and the feasibility of using artificial cyanobacterial crust to prevent and control wind erosion on farmla...
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Science Press
2023-10-01
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| Series: | Shuitu baochi tongbao |
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| Online Access: | http://stbctb.alljournal.com.cn/stbctben/article/abstract/20230501 |
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| author | Huang Minghui Zhao Yunge Gao Liqian |
| author_facet | Huang Minghui Zhao Yunge Gao Liqian |
| author_sort | Huang Minghui |
| collection | DOAJ |
| description | [Objective] The influence factors of artificial cyanobacterial crust on soil threshold wind velocity and wind erosion rate, and the effects of wind erosion prevention and control were analyzed, and the feasibility of using artificial cyanobacterial crust to prevent and control wind erosion on farmland soil was explored, in order to provide a new idea for farmland soil wind erosion prevention and control. [Methods] The effects of five inoculum amounts of cyanobacterial liquid, which were 400, 600, 800, 1 000, 1 200 ml/m2, on the formation of cyanobacterial crust on farmland soil were investigated. The effects and feasibility of using artificial cyanobacterial crust to reduce soil wind erosion were tested and estimated using wind tunnel tests. [Results] Cyanobacterial crusts of different coverages could be formed under outdoor conditions by inoculating the soil with cyanobacteria liquid having different inoculum amounts. When the cyanobacteria inoculum amount was 1 200 ml/m2, the coverage could reach 30% after 14 days of cultivation, and the coverage was greater than 60% after 50 days of cultivation. The biomass and thickness of the artificial cyanobacteria crust were 52 and 9 times of that of the control, respectively (p<0.05). Artificial cyanobacterial crust significantly increased the threshold wind velocity for soil erosion and decreased the wind erosion rate. When the coverage of cyanobacterial crust was 30%, the threshold wind velocity (9 m/s) increased by 44% and the wind erosion rate decreased by more than 80%. [Conclusion] Inoculating farmland soil with cyanobacterial liquid can form a crust that can significantly change soil physical properties and enhance soil resistance to wind erosion. The formation of cyanobacterial crust on farmland soil by inoculation with cyanobacterial solution can be used as a rapid and effective method for prevention and control of soil erosion by wind. |
| format | Article |
| id | doaj-art-e9583fcf55ee4438bd9119852d9eaa61 |
| institution | OA Journals |
| issn | 1000-288X |
| language | zho |
| publishDate | 2023-10-01 |
| publisher | Science Press |
| record_format | Article |
| series | Shuitu baochi tongbao |
| spelling | doaj-art-e9583fcf55ee4438bd9119852d9eaa612025-08-20T02:14:51ZzhoScience PressShuitu baochi tongbao1000-288X2023-10-014351610.13961/j.cnki.stbctb.2023.05.0011000-288X(2023)05-0001-06Effects of Artificial Cyanobacterial Crust on Soil Wind Erosion Control in Arid RegionsHuang Minghui0Zhao Yunge1Gao Liqian2College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, ChinaState Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Northwest A&F University, Yangling, Shaanxi 712100, ChinaState Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Northwest A&F University, Yangling, Shaanxi 712100, China[Objective] The influence factors of artificial cyanobacterial crust on soil threshold wind velocity and wind erosion rate, and the effects of wind erosion prevention and control were analyzed, and the feasibility of using artificial cyanobacterial crust to prevent and control wind erosion on farmland soil was explored, in order to provide a new idea for farmland soil wind erosion prevention and control. [Methods] The effects of five inoculum amounts of cyanobacterial liquid, which were 400, 600, 800, 1 000, 1 200 ml/m2, on the formation of cyanobacterial crust on farmland soil were investigated. The effects and feasibility of using artificial cyanobacterial crust to reduce soil wind erosion were tested and estimated using wind tunnel tests. [Results] Cyanobacterial crusts of different coverages could be formed under outdoor conditions by inoculating the soil with cyanobacteria liquid having different inoculum amounts. When the cyanobacteria inoculum amount was 1 200 ml/m2, the coverage could reach 30% after 14 days of cultivation, and the coverage was greater than 60% after 50 days of cultivation. The biomass and thickness of the artificial cyanobacteria crust were 52 and 9 times of that of the control, respectively (p<0.05). Artificial cyanobacterial crust significantly increased the threshold wind velocity for soil erosion and decreased the wind erosion rate. When the coverage of cyanobacterial crust was 30%, the threshold wind velocity (9 m/s) increased by 44% and the wind erosion rate decreased by more than 80%. [Conclusion] Inoculating farmland soil with cyanobacterial liquid can form a crust that can significantly change soil physical properties and enhance soil resistance to wind erosion. The formation of cyanobacterial crust on farmland soil by inoculation with cyanobacterial solution can be used as a rapid and effective method for prevention and control of soil erosion by wind.http://stbctb.alljournal.com.cn/stbctben/article/abstract/20230501farmland wind erosionartificial cultivationcyanobacterial crustthreshold wind velocitywind erosion ratearid region |
| spellingShingle | Huang Minghui Zhao Yunge Gao Liqian Effects of Artificial Cyanobacterial Crust on Soil Wind Erosion Control in Arid Regions Shuitu baochi tongbao farmland wind erosion artificial cultivation cyanobacterial crust threshold wind velocity wind erosion rate arid region |
| title | Effects of Artificial Cyanobacterial Crust on Soil Wind Erosion Control in Arid Regions |
| title_full | Effects of Artificial Cyanobacterial Crust on Soil Wind Erosion Control in Arid Regions |
| title_fullStr | Effects of Artificial Cyanobacterial Crust on Soil Wind Erosion Control in Arid Regions |
| title_full_unstemmed | Effects of Artificial Cyanobacterial Crust on Soil Wind Erosion Control in Arid Regions |
| title_short | Effects of Artificial Cyanobacterial Crust on Soil Wind Erosion Control in Arid Regions |
| title_sort | effects of artificial cyanobacterial crust on soil wind erosion control in arid regions |
| topic | farmland wind erosion artificial cultivation cyanobacterial crust threshold wind velocity wind erosion rate arid region |
| url | http://stbctb.alljournal.com.cn/stbctben/article/abstract/20230501 |
| work_keys_str_mv | AT huangminghui effectsofartificialcyanobacterialcrustonsoilwinderosioncontrolinaridregions AT zhaoyunge effectsofartificialcyanobacterialcrustonsoilwinderosioncontrolinaridregions AT gaoliqian effectsofartificialcyanobacterialcrustonsoilwinderosioncontrolinaridregions |