Usage Feasibility of Bentonite in Restoration of Aggregate Stability in Different Landuses Soil after Fire

Document Type : Complete scientific research article

Authors

1 M.Sc. Graduate of Watershed Management, Faculty of Natural Resources, Sari Agricultural Sciences and Natural Resources University, Sari, Iran.

2 . Corresponding Author, Associate Prof., Dept. of Watershed Management, Faculty of Natural Resources, Sari Agricultural Sciences and Natural Resources University, Sari, Iran

3 Professor, Dept. of Watershed Management, Faculty of Natural Resources, Sari Agricultural Sciences and Natural Resources University, Sari, Iran

Abstract

Soil stability refers to the resistance of the soil structure against external forces such as the impact of raindrops and splash erosion. Some human factors, such as fire, not only cause the vegetation reduction, the bare becomes soil surface and its vulnerable, but also have the destructive effects on the aggregates stability of surface Fire causes the soil to be susceptible to erosion by reducing organic matter, reducing the aggregates stability and reducing soil quality. Considering that the vegetation establishment in the affected areas by fire requires a lot of time and money, the application of soil conditioners in order to vegetation restoration and increasing the aggregates stability in affected areas by fire is an important step in restoration of these areas. Landuse has the significant effects on changes of soil erodibility factor, and the studies have shown that the forest landuse has the lowest amount of soil erodibility factor compared to pasture and cropland landuses. The present study was conducted with the investigation aim of aggregates stability before and after fire using bentonite conditioner with different levels in forest, pasture and agricultural landuses.
Materials and methods: At first, the collected soil from each landuse was placed in plots and compacted to specific weight to natural conditions and subjected under mean-fire conditions. Then, the remaining ash was collected from the surface of the fire plots and rainfall simulation with rainfall intensity of 90 mm h-1 and duration of 10 min was performed in the control treatments (soil without conditioner, burned and un-burned soil), fired and unfired soil containing different levels of bentonite with rates of 15, 30 and 45 percent in three replications. The used rainfall simulator in this study is placed on a metal structure in the form of A, with the ability to adjust the height from 2 to 2.7 m. To stability measurment of the aaggregates stability, surface soil was collected to depth of two mm with an amount of about 50 g from the surface of the splash cups, and the aggregates stability was calculated using the sieve method. Excel and SPSS software were used to performance of all statistical analyses. In order to extraction of the grading components, including the mean, standard deviation, skewness, and kurtosis and as well as all variables, D10, D50, D90, D90/ D10, D75/ D25, D75-D25 was used from GRADISTAT macro in different treatments under Excel software.
Results: The conditioner effect of bentonite on forest landuse showed that the bentonite with level of 15 percent compared to the other two levels increased the aggregates stability in finer particles and levels of 30 and 45 percent increased the stability in coarser aggregates. In rangeland landuse, bentonite conditioner, all three levels of conditioner increased the average diameter of coarser aggreagets. In agricultural landuse, bentonite conditioner, in level of 15 and 30 percent showed that the more effect on aggregated stability on finer aggregates stability. The landuses effect on the stability of soil aggregates showed that this parameter had the significant effect on the variables D10, D50, D90, D90/ D10, D75/ D25, D75-D25, sorting, skewness and kurtosis at the level of 99 percent. The fire treatment was also significant on the variables D90, D90/ D10, D90- D10 sorting and kurtosis at the level of 99 percent, D75-D25 at the level of 95 percent. The conditioner effect of bentonite at before and after fire on the stability of soil aggregates also showed that it was significant on the variables D10, D50, D90, D90/ D10, D90- D10, D75-D25and skewness at the level of 99 percent. The interaction effect of landuses and fire on variables D90, D90/ D10, D90- D10, sorting and kurtosis of soil aggregates were significant at the level of 99 percent. Also, the intraction effect of landuses and bentonite conditioner on variables of D10, D50, D90, D90/ D10, D75-D25, and skewness was at the level of 99 percent and also on skewness and kurtosis significant at the level 95 percent. The results showed that conditioner can act as a soil amendment and by creating adhesion on the soil surface, it can stable the soil aggregates against raindrop impact and reduce soil erosion. According to the results of the present research, it can be stated that the usage of bentonite clay was beneficial in managing and reducing erosion and making executive decisions, although the final conclusions depend on conducting more extensive research in natural fields.
Results: The conditioner effect of bentonite on forest landuse showed that the bentonite with level of 15 percent compared to the other two levels increased the aggregates stability in finer particles and levels of 30 and 45 percent increased the stability in coarser aggregates. In rangeland landuse, bentonite conditioner, all three levels of conditioner increased the average diameter of coarser aggreagets. In agricultural landuse, bentonite conditioner, in level of 15 and 30 percent showed that the more effect on aggregated stability on finer aggregates stability. The landuses effect on the stability of soil aggregates showed that this parameter had the significant effect on the variables D10, D50, D90, D90/ D10, D75/ D25, D75-D25, sorting, skewness and kurtosis at the level of 99 percent. The fire treatment was also significant on the variables D90, D90/ D10, D90- D10 sorting and kurtosis at the level of 99 percent, D75-D25 at the level of 95 percent. The conditioner effect of bentonite at before and after fire on the stability of soil aggregates also showed that it was significant on the variables D10, D50, D90, D90/ D10, D90- D10, D75-D25and skewness at the level of 99 percent. The interaction effect of landuses and fire on variables D90, D90/ D10, D90- D10, sorting and kurtosis of soil aggregates were significant at the level of 99 percent. Also, the intraction effect of landuses and bentonite conditioner on variables of D10, D50, D90, D90/ D10, D75-D25, and skewness was at the level of 99 percent and also on skewness and kurtosis significant at the level 95 percent. The results showed that conditioner can act as a soil amendment and by creating adhesion on the soil surface, it can stable the soil aggregates against raindrop impact and reduce soil erosion. According to the results of the present research, it can be stated that the usage of bentonite clay was beneficial in managing and reducing erosion and making executive decisions, although the final conclusions depend on conducting more extensive research in natural fields.

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1.Vaezi, A. R., Rahmati, S., & Bayat, H. (2018). Evaluating the susceptibility of aggregate sizes to interrill erosion
based on aggregate stability indices. Journal of Water and Soil Conservation, 25(2), 169-185. [In Persian]
2.Haghjoo, Z., Gholami, L., Kavian, A., & Mosavi, S. R. (2019). Changes study of soil splash and stability of soil aggregates using polyvinyl acetate. Iranian Journal of Watershed Management Science,13 (47), 52-62. [In Persian]
3.Huang, J., Wu, P., & Xining, Z. (2013). Effects of rainfall intensity, underlying surface and slope gradient on soil infiltration under simulated rainfall experiments. Catena, 104, 93-102.
4.Mohammadian Khorasani, S., Homaee, M., & Pazira, E. (2015). Evaluating soil aggregate stability using classical methods and fractal models. Journal of Water and Soil Resources Conservation, 4(3), 39-51. [In Persian]
5.Kinnell, P. I. A., & Yu, B. (2020). CLIGEN as a weather generator for predicting rainfall erosion using USLE based modelling systems. Catena,194, 104745.
6.Mohabbati, N., Gholami, L., Kavian, A., & Shokrian, F. (2022). Effect of compost and zeolite at various time periods on amount of soil splash. Journal of Water and Soil Conservation, 28(4), 207-224. [In Persian]
7.DeBano, L. F. (1981). Water repellent soils: a state-of-the-art. General technical report PSW-46, forest service, US Department of Agriculture, Washington, DC, 21 p.
8.De Vente, J., Poesen., J., Verstraeten, G., Van Rompaey, A., & Govers, G. (2008). Spatially distributed modelling of soil erosion and sediment yield at regional scales in Spain. Global and Planetary Change, 60(34), 393-415.
9.Barthes, B. G., Kouoa, E., Larre-Larrouy, M. C., Razafimbelo, T. M., de Luca, E., Azontonde, A., Neves, C.S., de Freitas,
P. L., & Feller, C. L. (2008). Texture and sesquioxide effects on water stable aggregates and organic matter in some tropical soils. Geoderma, 143, 14-25.
10.Bronick, C. J., & Lal, R. (2005). Manuring and rotation effects on soil organic carbon concentration for different aggregate size fractions on two soils in northeastern Ohio. USA, Soil Tillage. Research, 81, 239-252.
11.Skaggs, T. H., Arya, L. M., Shouse, P. J., & Mohanty, B. P. (2001). Estimating particle size distribution from limited soil texture data. Soil Science Society American Journal, 65, 1038-1044.
12.Kemper, W. D., & Rosenau, R. C. (1986). Aggregate stability and size distribution, in: Methods of Soil Analysis. Part 1. Physical and Mineralogical Methods, Klute, A., Ed. pp. 425-442.
13.Samie, F., Yaghmaeian Mahabadi, N., Abrishamkesh, S., & Maslahatjou, A. (2022). Impact of land use change on erodibility and soil quality indicators (case study: Sidasht, Guilan Province). Agricultural Engineering, 45(1), 57-78. [In Persian]
14.Sadeghi, P. S., & Khaledi Darvishan, A. (2020). Effect of fire treatment on aggregate stability and splash components in laboratory condition. Watershed Engineering and Management, 15(22023), 185-200.
15.Gholami, L., Kavian, A., Kiani-Harchegani, M., Karimi, N., & Serrano Bernardo, F. (2024). Investigating the zeolite performance in soil and water conservation after prescribed fires in degraded rangelands. Trees, Forests and People, 16, 100576.
16.Abedi Kopaie, J., & Sohrab, F. (2004). The effect of zeolite and bentonite minerals on the hydraulic properties
of soils. Crystallography and mineralogy conference of Iran. 12, 562-567. [In Persian]
17.Amani Dashtaki, E., Ghasemi, A. R., Nouri, M. R., & Motaghian, H. R. (2021). Effect of vermiculite, bentonite and zeolite on evaporation and soil characteristic moisture curve. Journal of Water and Soil Conservation,28 (2), 83-101. [In Persian]
18.Khorram Jah, F. (2014). A review of bentonite types and their applications in various industries, especially the drilling industry. The First National Conference of New Techniques in Oil Industry Laboratory Equipment and Materials. [In Persian]
19.Gholami, L., Karimi, N., & Kavina, A. (2019). Soil and water conservation using biochar and various soil moisture in laboratory conditions. Catena, 104151.
20.Gholami, L., Banasik., K., Sadeghi, S. H. R., Khaledi Darvishan, A. V., & Hejduk, L. (2014). Effectiveness of straw mulch on infiltration, splash erosion, runoff and sediment in laboratory conditions. Journal of Water and Land Development,
22 (VII-IX), 51-60.
21.Karimi, N., Gholami, L., & Kavian, A. (2019). Protective role of biochar in different soil moisture for prevent soil loss in laboratory conditions. Iran-Watershed Management Science & Engineering, 23 (3), 223-235. [In Persian]
22.Ayoubi, A., Feizi, Z., Mosaddeghi, M. R., & Besaltpour, A. A. (2018). Investigating the application of biochar, bentonite clay and polyvinyl acetate polymer on some mechanical properties of sand deposits. Agricultural Engineering, 41(2), 83-97. [In Persian]
23.Kavian, A., Mohammadi, M., Cerdà, A., Fallah, M., & Gholami, L. (2019). Design, manufacture and calibration of the SARI portable rainfall simulator for field and laboratory experiments. Hydrological Sciences Journal, 1581364.
24.Molai Renani, M., Bashri, H., Basiri, M., & Mossadeghi, M. (2013). Evaluation of the stability of soil structure by sieve method in some pasture places of Isfahan province. Agricultural Sciences and Techniques and Natural Resources, Water and Soil Sciences, 18(70), 131-121. [In Persian]
25.Gholami, L., Khaledi Darvishan, A., Artemi, V., Cerdà, & A., Kavian, A. (2021). Effect of storm pattern on soil erosion in damaged rangeland; field rainfall simulation approach. Journal of Mountain Science, 18(3), 706-715.
26.Bameri, M., Khormali, F., & Kheirabadi, H. (2021). Effect of Bentonite clay and slope on sediment concentration and some hydraulic characteristics flow in the loess soil. Journal of Agricultural Engineering Soil Science and Agricultural Mechanization, (Scientific Journal of Agriculture), 44(2), 159-174. [In Persian]
27.Bouslihim, Y., Rochdi, A., & Paaza, N. E. A. (2021). Machine learning approaches for the prediction of soil aggregate stability. Heliyon, 7(3), e06480.
28.Benkova, M., Filcheva, E., Raytchev, T., Sokolowska, Z., & Hajnos, M. (2005). Impact of different ameliorants on humus state in acid soil polluted with heavy metals. 46-58.
29.Moradi, N., Emami, H., Astaraei, A. R., Fotovat, A., & Ghahraman, B. (2017). The effect of nanoparticles of Aluminum oxide and Silicon oxide on soil structural stability indices. Water and Soil Conservation, 23(5), 253-265. [In Persian]
30.Gholami, L., Haghjoo, Z., & Kavian, A. (2017). Effect of polyvinyle acetate polymer on soil surface resistance variations. Watershed Research,31(4), 84-93. [In Persian]
31.Godarzi, M., Azimi, M. S., & Banj Shafiei, Sh. (2015). Investigating the fire effects on the physical and chemical characteristics of rangeland soil. Journal of Rangeland, 2(1), 53-64. [In Persian]
32.Mataix-Solera, J., Cerdà, A., Arcenegui, V., Jordán, A., & Zavala, L. M. (2021). Fire effects on soil aggregation: A review. Earth-Science Reviews, 109(1-2), 44-60.
33.Agbeshie, A. A., Abugre, S., Atta-Darkwa, T., & Awuah, R. (2022). A review of the effects of forest fire on soil properties. Journal of Forestry Research, 33(5), 1419-1441.
34.Tao, T. (2021). The correlation between fire and boreal forest soil degradation: a review of the effects of forest fire on soil properties. Faculty of Natural Resources Management Lakehead University.
35.Sharifi, Z., & Azadi, N. (2020). Comparative study of the effects of wildfire and land use change on soil organic carbon decomposition rate in aggregate size fraction in the Northern Zagros Oak Forest. Journal of Water and Soil Conservation, 27(4), 167-184. [In Persian]
36.Akbari, S., & Vaezi, A. R. (2015). Investigating aggregates stability against raindrops impact in some soils of a semi-arid region, North West of Zanjan. Water and Soil Science, 25(2), 65-77. [In Persian]
37.Verma, S., & Jayakumar, S. (2012). Impact of forest fire on physical, chemical and biological properties of soil: A review. Proceedings of the International Academy of Ecology and Environmental Sciences, 2(3), 168.
38.Mokhtari, P., Ayoubi, Sh., & Mosaddeghi, M. R. (2013). Aggregate structure and soil organic carbon pools in aggregate size fractions as affected by slope gradient and land use change in hilly regions, Western Iran. Iranian Journal of Soil and Water Research, 44(2): 193-202. [In Persian]