Volume 25, Issue 1 (Spring 2021)                   jwss 2021, 25(1): 219-230 | Back to browse issues page

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Hasanzadeh N, Gholami L, Khaledi Darvishan A, Yonesi H. Effect of Various Rates of Montmorillonite Nanoclay on Changing Runoff and Soil Loss. jwss 2021; 25 (1) :219-230
URL: http://jstnar.iut.ac.ir/article-1-3939-en.html
1. Department of Watershed Management Engineering, College of Natural Resources, Sari Agricultural Sciences and Natural Resources University, Sari, Iran. , gholami.leily@yahoo.com
Abstract:   (2099 Views)
Soil erosion is one of the most serious environmental issues in the world, causing soil degradation, reduction of land productivity, increasing flood, water pollution and pollutions transportation; it is also a serious threat to sustainable development in the world. Therefore, the soil conservation and the prevention of soil erosion and use of conditioners as the nanoclay can be considered as a solution to improve   land productivity and protect environment. The present study was, therefore, conducted to address the effect of the application of montmorillonite nanoclay with three rates of 0.03, 0.06 and 0.09 t ha-1 on changing runoff and soil loss variables under laboratory conditions. The results showed that the nanoclay with the rate of 0.03 t ha-1 could decrease the runoff coefficient, soil loss and sediment concentration with the rate of 40.65, 88.38 and 82.19 percent, respectively. The average of soil loss in control treatment and conservation treatments of nanoclay with various rates was measured to be 3.76, 0.44, 1.33 and 3.16 g, respectively. Also, the results showed that the most sediment concentration was the control treatment with the rate of 5.84 g l-1 and the conservation treatments with nanoclay in the applied rates was 1.04, 3.47 and 2.96 g l-1, respectively. Also, the results showed that the nanoclay effect was significant on changing the soil loss and sediment concentration at the level of 99 percent. Finally, due to the effect, the use of this conditioner in natural conditions and investigation of the effects on environment and aggregates stability are recommended.
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Type of Study: Research | Subject: Ggeneral
Received: 2019/09/25 | Accepted: 2020/09/9 | Published: 2021/05/31

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