干旱区生态环境知识资源中心(Arid): Properties of biochars derived from different straw at 500°C pyrolytic temperature: Implications for their use to improving acidic soil water retention

Arid

DOI	10.1016/j.agwat.2024.108953
	Properties of biochars derived from different straw at 500°C pyrolytic temperature: Implications for their use to improving acidic soil water retention
	Huang, Chunshui; Chen, Yang; Jin, Lichuang; Yang, Binbin
通讯作者	Chen, Y
来源期刊	AGRICULTURAL WATER MANAGEMENT
ISSN	0378-3774
EISSN	1873-2283
出版年	2024
卷号	301
英文摘要	Climate change cause extreme weather effects with temperature increases and drops in humidity, such as drought and heatwaves, which will lead to more evaporation in arid and semi-arid lands. The application of biochar made from crop straw without burning to farmland can effectively improve the water retention capacity of soil. A testing program has been carried out in a climate simulation laboratory to study the effects of different straw biochars on the cracking and evaporation of soils due to drying. Biochar from wheat straw (WS), corn straw (CS) and rice straw (RS) is produced at a pyrolysis temperature of 500 degrees C. Thermogravimetric analysis and elemental analysis are carried out to obtain the properties of the biochar. Five percent of WS, CS and RS biochar by weight is added to acidic soil. Digital camera and digital image processing technology are used to analyze the crack morphology of the samples during evaporation. The results indicate that the RS biochar has the highest ash content (32.5 %), CS biochar has the highest content of volatile solid (25.36 %) and WS biochar has the highest content of fixed carbon (55.38 %). Biochar can effectively improve the water retention capacity of soil. The final water contents of the WS, CS and RS biochar soil samples are 132.3 %, 101.0 %, and 20.7 % respectively higher than that of the soil without biochar. Moreover, biochar can effectively reduce the degree of soil cracking. The addition of WS, CS and RS biochar can reduce soil cracking by 9.21 %, 16.57 %, and 7.46 %, respectively. WS contains more total cellulose than CS and RS, so WS biochar is the best choice to improve soil water retention ability. Therefore, biochar technology helps to optimize soil water retention while avoiding environmental pollution from straw burning.
英文关键词	Water retention Straw biochar Agricultural wastes Cracking
类型	Article
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:001268833200001
WOS关键词	GROWTH ; QUALITY ; FIBERS
WOS类目	Agronomy ; Water Resources
WOS研究方向	Agriculture ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/402679
推荐引用方式 GB/T 7714	Huang, Chunshui,Chen, Yang,Jin, Lichuang,et al. Properties of biochars derived from different straw at 500°C pyrolytic temperature: Implications for their use to improving acidic soil water retention[J],2024,301.
APA	Huang, Chunshui,Chen, Yang,Jin, Lichuang,&Yang, Binbin.(2024).Properties of biochars derived from different straw at 500°C pyrolytic temperature: Implications for their use to improving acidic soil water retention.AGRICULTURAL WATER MANAGEMENT,301.
MLA	Huang, Chunshui,et al."Properties of biochars derived from different straw at 500°C pyrolytic temperature: Implications for their use to improving acidic soil water retention".AGRICULTURAL WATER MANAGEMENT 301(2024).