干旱区生态环境知识资源中心(Arid): Improvement of physical and hydraulic properties of desert soil with amendment of different biochars

Arid

DOI	10.1007/s11368-019-02293-8
	Improvement of physical and hydraulic properties of desert soil with amendment of different biochars
	Zhang, Leiyi; Jing, Yiming; Chen, Guanhong; Wang, Xiaojie; Zhang, Renduo
通讯作者	Zhang, Renduo
来源期刊	JOURNAL OF SOILS AND SEDIMENTS
ISSN	1439-0108
EISSN	1614-7480
出版年	2019
卷号	19 期号:7 页码:2984-2996
英文摘要	onsThe changes of hydraulic properties of desert soil were attributable to the biochar properties. PurposeThe objective of this study was to investigate the effects of amendment of different biochars on the physical and hydraulic properties of desert soil.Materials and methodsBiochars were produced with woodchip, rice straw, and dairy manure at temperatures of 300 and 700 degrees C, respectively. Each biochar at 5% (w/w) was mixed with desert soil, and the mixtures were incubated for 120days.Results and discussionThe different biochar treatments greatly reduced soil bulk density and saturated hydraulic conductivity. Especially the rice straw biochar addition resulted in the lowest saturated hydraulic conductivities among the treatments. Biochar addition significantly increased water retention of desert soil at any suction. At the same suction and experimental time, the treatment with the rice straw biochar produced at the lower temperature resulted in higher water content than the other treatments. The biochar additions slightly enhanced formation of soil macro-aggregates in the early experimental time. However, the aggregate contents gradually decreased with time due to the lack of effective binding agents (e.g., soil organic matter and clay minerals).ConclusiThe higher fine particle content, porosity, and surface hydrophilicity of rice straw biochars were the most beneficial properties to increase soil water retention and to reduce water flow in the desert soil. The improvement of hydraulic properties by biochar addition may provide a potential solution to combat desertification.
英文关键词	Biochars Desert soil Hydraulic properties Soil aggregates Influence factors
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000471661500011
WOS关键词	WATER-RETENTION ; SANDY ; POROSITY ; CONDUCTIVITY ; BIOTA ; SIZE
WOS类目	Environmental Sciences ; Soil Science
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/217328
作者单位	Sun Yat Sen Univ, Sch Environm Sci & Engn, Guangdong Prov Key Lab Environm Pollut Control &, Guangzhou 510006, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Leiyi,Jing, Yiming,Chen, Guanhong,et al. Improvement of physical and hydraulic properties of desert soil with amendment of different biochars[J],2019,19(7):2984-2996.
APA	Zhang, Leiyi,Jing, Yiming,Chen, Guanhong,Wang, Xiaojie,&Zhang, Renduo.(2019).Improvement of physical and hydraulic properties of desert soil with amendment of different biochars.JOURNAL OF SOILS AND SEDIMENTS,19(7),2984-2996.
MLA	Zhang, Leiyi,et al."Improvement of physical and hydraulic properties of desert soil with amendment of different biochars".JOURNAL OF SOILS AND SEDIMENTS 19.7(2019):2984-2996.