干旱区生态环境知识资源中心(Arid): Enhancement of the three-dimensional interfacial layer of a rocky desertification soil using a red mud-based fertilizer

Arid

DOI	10.1139/CJSS-2023-0013
	Enhancement of the three-dimensional interfacial layer of a rocky desertification soil using a red mud-based fertilizer
	Cheng, Junwei; Huang, Mingqin; Yan, Xiong
通讯作者	Cheng, JW
来源期刊	CANADIAN JOURNAL OF SOIL SCIENCE
ISSN	0008-4271
EISSN	1918-1841
出版年	2023
卷号	103 期号:4 页码:650-660
英文摘要	Red mud, a solid waste of alumina extraction from bauxite, was used as a compost carrier to prepare a geological fertilizer. It was amended at proportions of 0, 5%, 10%, 15% and 50% by weight (g/kg) to improve a rocky desertification soil (classified as lime soil) productivity. Through the simulation of different rain intensity (15, 50, and 90 mm/h) with three precipitation rates (1000, 2000, 3000 mm), soil chemical and physical properties, such as soil organic matter (SOM), total nitrogen (TN), ammonia nitrogen (AN), nitrate nitrogen (NN), total potassium (TK), available potassium (AK), total phosphorus (TP), available phosphorus (AP), bulk density and aggregates were tested and analyzed. In addition, a three-dimensional evaluation and analysis of the improvement attributed to the geological fertilizer was conducted. The results showed that the soil loss could be maintained in the range of 19%-72% under rainfall intensities. In addition, the reduction rate of soil clay content was less than 20%, and the lowest reduction rate of SOM, TN, TP and other nutrient was only 4% at the application rate of 5%-50%. The BD of the 0-20 cm top soil decreased progressively from 1.2 to 0.9 g/cm(3), while the water-stable aggregate volume increased by 45%-76%. The red mud-based fertilizer enhanced the ability of the rocky desertification soil to resist rainfall erosion and infiltration in amended soil profiles. Considering the trends of nutrient losses and effects on the soil structure, the application rate of 15% by weight (g/kg) was best for improving the rocky desertification soil productivity.
英文关键词	red mud geological fertilizer rocky desertification soil three-dimensional interface layer infiltration
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001086145000001
WOS关键词	VEGETATION RESTORATION ; EROSION PROCESSES ; ORGANIC-MATTER ; DYNAMICS ; CARBON ; ADSORPTION ; RETENTION ; RUNOFF
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/2XILL650/395639
推荐引用方式 GB/T 7714	Cheng, Junwei,Huang, Mingqin,Yan, Xiong. Enhancement of the three-dimensional interfacial layer of a rocky desertification soil using a red mud-based fertilizer[J],2023,103(4):650-660.
APA	Cheng, Junwei,Huang, Mingqin,&Yan, Xiong.(2023).Enhancement of the three-dimensional interfacial layer of a rocky desertification soil using a red mud-based fertilizer.CANADIAN JOURNAL OF SOIL SCIENCE,103(4),650-660.
MLA	Cheng, Junwei,et al."Enhancement of the three-dimensional interfacial layer of a rocky desertification soil using a red mud-based fertilizer".CANADIAN JOURNAL OF SOIL SCIENCE 103.4(2023):650-660.