Effects of Different Mulching Materials on Reducing Soil Dust from Bare Soil
Bingpeng Qu 1  
Suyan Li 1  
Xiangyang Sun 1  
Binghui Yun 1  
Hua Zhang 1  
Xinyu Wang 1  
Kaiyi Xiong 1  
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Forestry College, Beijing Forestry University, Beijing, China
Online publish date: 2018-08-13
Publish date: 2018-11-20
Submission date: 2017-09-29
Final revision date: 2018-01-02
Acceptance date: 2018-01-02
Pol. J. Environ. Stud. 2019;28(1):303–310
Soil dust is one of the sources of PM2.5, and most soil dust is derived from bare soil. Our laboratory experiment was conducted to explore the effects of different mulching materials, including cobblestones (CS), green waste (GW), pine bark (PB), and organic mulching mats (OMM) on reducing the generation of soil dust from bare soil by different wind speeds near the ground (2 m/s, 4 m/s, 7 m/s, 9 m/s, and 12 m/s). The results showed that all 4 mulching materials reduced the generation of atmospheric soil dust. Both GW and OMM had the best effect at reducing dust generation when the wind speed near the ground <4 m/s, and OMM had the best effect when wind speed was >4 m/s. The mulching materials GW and PB could be completely blown away when the wind speed near the ground reached 7 m/s and 9 m/s, respectively. It appears that OMM is the best mulching material for covering bare soil in Beijing.
Suyan Li   
Beijing Forestry University