NDLI: The Effectiveness of the Consolidated Desert Surface by Mixing of Fly Ash and Polyacrylamide in Wind Erosion Control

Content Provider	Springer Nature Link
Author	Wang, Yitong Yang, Kai Tang, Zejun Chen, Chao
Copyright Year	2016
Abstract	This study evaluated the resistance to wind erosion of a consolidated soil layer (CSL) using an indoor wind tunnel under simulated wind erosion conditions. The CSL consisted of the experimental soil (classified as a sandy soil), fly ash (FA) at two addition rates (10 and 20 % (w/w) soil), and polyacrylamide (PAM) at two addition rates (0.05 and 0.1 % (w/w) soil). Prior to the wind tunnel experiments, according to the different addition rates of FA and PAM, the sandy soil, FA, and PAM were homogeneously mixed by spraying an appropriate amount of deionized water to form different CSLs. The moisture content of the CSL was balanced to that of the sandy soil in the field. The threshold wind speeds and wind erosion amounts of different CSLs at two wind speeds of 8 and 14 m/s were measured, respectively. The results showed that the threshold wind speed of the sandy soil was significantly increased due to the formation of CSL by FA and PAM, exhibiting an increasing trend with increasing addition rate of FA and PAM. The wind erosion amounts of different CSLs were all decreased when compared with that of the sandy soil. The resistance to wind erosion of the CSL consisting of 10 % FA and 0.1 % PAM was strongest at a wind speed of 8 m/s, while only slight wind erosion occurred after 30-min exposure to the wind with a speed of 14 m/s.
Starting Page	1
Ending Page	11
Page Count	11
File Format	PDF
ISSN	00496979
Journal	Water, Air, and Soil Pollution
Volume Number	227
Issue Number	12
e-ISSN	15732932
Language	English
Publisher	Springer International Publishing
Publisher Date	2016-11-03
Publisher Place	Cham
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Wind tunnel experiments Consolidated soil layer (CSL) Wind erosion control Fly ash (FA) Polyacrylamide (PAM) Environment Water Quality/Water Pollution Atmospheric Protection/Air Quality Control/Air Pollution Soil Science & Conservation Hydrogeology Climate Change/Climate Change Impacts
Content Type	Text
Resource Type	Article
Subject	Ecological Modeling Environmental Chemistry Pollution Environmental Engineering Water Science and Technology

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