干旱区生态环境知识资源中心(Arid): Effect mechanism of biochar application on soil structure and organic matter in semi-arid areas

Arid

DOI	10.1016/j.jenvman.2021.112198
	Effect mechanism of biochar application on soil structure and organic matter in semi-arid areas
	Cen, Rui; Feng, Weiying; Yang, Fang; Wu, Wenyong; Liao, Haiqing; Qu, Zhongyi
通讯作者	Yang, F (corresponding author), Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China. ; Qu, ZY (corresponding author), Inner Mongolia Agr Univ, Coll Water Conservancy & Civil Engn, Hohhot 010018, Peoples R China.
来源期刊	JOURNAL OF ENVIRONMENTAL MANAGEMENT
ISSN	0301-4797
EISSN	1095-8630
出版年	2021
卷号	286
英文摘要	There are global concerns regarding soil remediation and water conservation in arid and semi-arid areas. Studying the mechanism and factors influencing soil structure and organic matter content is very important for soil remediation and the rational utilization of water resources. We tracked the changes in soil aggregates and organic matter content during the growth period of maize using different application rates of straw biochar (10, 20, 30, and 50 t/ha) to investigate the effects of biochar on the structure of weakly alkaline soil. The results were as follows: 1) Biochar significantly increased the content of water-stable soil aggregates. The content of waterstable macroaggregates (?0.25 mm) increased by 8.3?35.0%, and the increase was the highest (35%) when biochar was applied at a rate of 30 t/ha 2) After applying biochar, the content of air-dried aggregates on the surface layer increased by 112.6?168.5%. 3). Biochar increased the organic matter content to varying degrees from the spatiotemporal aspect. In terms of soil depth, organic matter content increased by 2.15?5.88 g/kg. The jointing stage, which the time demand for organic matter is the highest, organic matter content increased by 35.4% when biochar was applied at 50 t/ha 4) We established a three-dimensional surface correlation equation based on the synergistic relationships among biochar, water-stable aggregates, and organic matter content. The particle size of soil aggregates was the highest when the biochar application rate was 29.38 t/ha and the organic matter content increased by 25.7%. It provided evidence that applies to biochar has good potential for watersaving irrigation and soil remediation.
英文关键词	Soil remediation Maize Soil aggregates Soil organic matter Soil water stability aggregates
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000634984700005
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/350794
作者单位	[Cen, Rui; Yang, Fang; Liao, Haiqing] Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China; [Cen, Rui; Wu, Wenyong] China Inst Water Resources & Hydropower Res, Dept Irrigat & Drainage, Beijing 100089, Peoples R China; [Feng, Weiying] Beihang Univ, Sch Space & Environm, Beijing 100191, Peoples R China; [Feng, Weiying] Beihang Univ, Beijing Adv Innovat Ctr Big Data Based Precis Med, Beijing 100191, Peoples R China; [Qu, Zhongyi] Inner Mongolia Agr Univ, Coll Water Conservancy & Civil Engn, Hohhot 010018, Peoples R China
推荐引用方式 GB/T 7714	Cen, Rui,Feng, Weiying,Yang, Fang,et al. Effect mechanism of biochar application on soil structure and organic matter in semi-arid areas[J],2021,286.
APA	Cen, Rui,Feng, Weiying,Yang, Fang,Wu, Wenyong,Liao, Haiqing,&Qu, Zhongyi.(2021).Effect mechanism of biochar application on soil structure and organic matter in semi-arid areas.JOURNAL OF ENVIRONMENTAL MANAGEMENT,286.
MLA	Cen, Rui,et al."Effect mechanism of biochar application on soil structure and organic matter in semi-arid areas".JOURNAL OF ENVIRONMENTAL MANAGEMENT 286(2021).