干旱区生态环境知识资源中心(Arid): Large scale study on influence of biopolymer to mitigate wind induced sand erosion with durability analysis

Arid

DOI	10.1016/j.still.2023.105942
	Large scale study on influence of biopolymer to mitigate wind induced sand erosion with durability analysis
	Dagliya, Monika; Satyam, Neelima
通讯作者	Satyam, N
来源期刊	SOIL & TILLAGE RESEARCH
ISSN	0167-1987
EISSN	1879-3444
出版年	2024
卷号	236
英文摘要	The desertification is a serious threat that affects the sustainable agriculture, ecosystem, and economic progress of society. There is an urgent need for an environment friendly, cost-effective, durable, and practical approach to mitigate wind induced erosion. The present study introduces a novel approach through large scale testing using biopolymer, including durability analysis. The research investigates the influence of biopolymer namely Acacia gum (AG) to mitigate wind induced sand erosion. For the experimental setup, rectangular trays (180 cm x 60 cm x 15 cm) containing 11 erosion pins (three rows along the length, in a staggered way at equal spacing) have been filled with desert sand. Solutions have been prepared using biopolymer concentrations (1%, 2%, and 3%) mixed with water. The prepared solution was sprayed onto specimens and the treated samples were then left for air drying (7 and 28 days curing period). The study has been performed on summer days with an average temperature of 40 degrees C. After biotreatment, the specimens were examined in a wind tunnel at variable wind speeds of 6, 10, and 15 m/s to measure sand loss rate (SLR) for different wind intervals (i.e., 1, 2, 3, 4, and 5 min). Surface strengths were assessed using a pocket penetrometer. To check the durability of biotreated sand samples, 28 days curing period samples, with all biopolymer percentages have gone through 5 wetting and drying cycles (WDC). After the last WDC, samples were left again for 28 days and then experienced all tests. The minimum and maximum SLR for desert sand ranged from 17 kg/m(2) at 6 m/s and 1 min duration to 123 kg/m(2) at 15 m/s and 5 min duration respectively. Instead biotreated sand samples presented negligible SLR. Surface strength increased with increasing biopolymer concentration and a curing period. The maximum surface strength was 334.47 kPa recorded at 3% concentration during the curing period of 28 days. Further analysis involving SEM, EDX, and PXRD, confirmed sand particle bonding. For surface strength, 3% biopolymer concentration consistently produced positive outcomes, even after undergoing 5 WDC.
英文关键词	Wind tunnel Wetting and drying cycle Acacia gum Wind erosion Biopolymer Desert sand
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001166426500001
WOS关键词	DESERT ; DESERTIFICATION ; LAND
WOS类目	Soil Science
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/405642
推荐引用方式 GB/T 7714	Dagliya, Monika,Satyam, Neelima. Large scale study on influence of biopolymer to mitigate wind induced sand erosion with durability analysis[J],2024,236.
APA	Dagliya, Monika,&Satyam, Neelima.(2024).Large scale study on influence of biopolymer to mitigate wind induced sand erosion with durability analysis.SOIL & TILLAGE RESEARCH,236.
MLA	Dagliya, Monika,et al."Large scale study on influence of biopolymer to mitigate wind induced sand erosion with durability analysis".SOIL & TILLAGE RESEARCH 236(2024).