干旱区生态环境知识资源中心(Arid): Effect of fly ash- and polyacrylamide-consolidated soil layer on A. splendens growth in a desert in North China

Arid

DOI	10.1016/j.catena.2021.105935
	Effect of fly ash- and polyacrylamide-consolidated soil layer on A. splendens growth in a desert in North China
	Wang, Yitong; Yang, Kai; Tang, Zejun
通讯作者	Yang, K
来源期刊	CATENA
ISSN	0341-8162
EISSN	1872-6887
出版年	2022
卷号	210
英文摘要	Vegetation restoration is an important part of effective desertification control. Consolidated soil layer (CSL) formed by mixing coal fly ash (FA), dry anionic polyacrylamide (PAM) granules, and sandy soil can increase the resistance to wind erosion of the soil. This study further investigated the effect of CSL on vegetation recovery on the sandy land in the Ulan Buh Desert, North China. FA and PAM were applied into the 0-0.3 m depth sandy soil layer at varying application rates to form CSLs (viz. T1 (5%FA + 0.05%PAM), T2 (5%FA + 0.1%PAM), T3 (10% FA + 0.05%PAM), T4 (10%FA + 0.1%PAM), T5 (15%FA + 0.05%PAM), and T6 (15%FA + 0.1%PAM)) where Achnatherum splendens (Trin.) Nevski (A. splendens) was planted. The results showed that the moisture content of T3 and T4 was consistently higher than that of untreated sandy soil (CK) along the 0.1-0.2 m depth soil layer, which was attributed to the increased water holding capacity of sandy soil by FA and PAM via alteration of coarse soil texture by fine-sized FA particles and binding of soil particles by PAM as well as the formation of soil surface crust. As a result, the growth traits of A. splendens including average height, tillers number, and leaf-area coverage were promoted in CSLs during the one-year growth period, with the most distinctly improved final growth traits noted in T4 and T6. The eight-month field observation found that the resistance to wind erosion of CSL with A. splendens cover was significantly improved than that of CK, and the wind erosion rate decreased with increasing FA application rate. The improvement in the resistance to wind erosion of CSL was attributed to the pozzolanic action and filling effect of fine FA particles and adhesive action and inter-particle binding of PAM. A. splendens cover was demonstrated to effectively protect the CSL from being eroded by wind in the field.
英文关键词	Chemical sand fixation Consolidated soil layer Vegetation recovery Soil moisture Growth traits
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000790433500002
WOS关键词	GRASS ACHNATHERUM-SPLENDENS ; INNER-MONGOLIA ; WIND EROSION ; WATER-UPTAKE ; SANDY LAND ; VEGETATION ; STABILIZATION ; DUNES ; AREA
WOS类目	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS研究方向	Geology ; Agriculture ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392071
推荐引用方式 GB/T 7714	Wang, Yitong,Yang, Kai,Tang, Zejun. Effect of fly ash- and polyacrylamide-consolidated soil layer on A. splendens growth in a desert in North China[J],2022,210.
APA	Wang, Yitong,Yang, Kai,&Tang, Zejun.(2022).Effect of fly ash- and polyacrylamide-consolidated soil layer on A. splendens growth in a desert in North China.CATENA,210.
MLA	Wang, Yitong,et al."Effect of fly ash- and polyacrylamide-consolidated soil layer on A. splendens growth in a desert in North China".CATENA 210(2022).