干旱区生态环境知识资源中心(Arid): Customized biochar for soil applications in arid land: Effect of feedstock type and pyrolysis temperature on soil microbial enumeration and respiration

Arid

DOI	10.1016/j.jaap.2022.105693
	Customized biochar for soil applications in arid land: Effect of feedstock type and pyrolysis temperature on soil microbial enumeration and respiration
	Al-Rabaiai, Ahmed; Menezes-Blackburn, Daniel; Al-Ismaily, Said; Janke, Rhonda; Pracejus, Bernhard; Al-Alawi, Ahmed; Al-Kindi, Mohamed; Bol, Roland
通讯作者	Menezes-Blackburn, D
来源期刊	JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
ISSN	0165-2370
EISSN	1873-250X
出版年	2022
卷号	168
英文摘要	Biochar is rapidly gaining worldwide interest as an agro-technology for increasing soil health and carbon storage. This study investigated the physicochemical characteristics and impact on soil microbes of biochar amendments from three feedstock sources: date palm leaves (D), mesquite plants (M) and sludge compost (S.C.); pyrolyzed at 450?, 600 ? and 750 ?. Scanning electron microscopy images showed an apparent pore size increase with increasing pyrolysis temperature. The increase in pyrolysis temperature decreased O-H and C-O bonds and increased the proportion of C-C bonds, as obtained from the Fourier transform infrared spectroscopy studies. Thermostability was highest at a pyrolysis temperature of 750 ?, with distinct thermal decomposition profiles for each of the three feedstock materials used, as indicated by the dynamic thermal gravimetric analysis. The SC biochars showed the highest mineral content (45-66%) with significantly higher water-soluble and total concentrations of mineral elements. The SC samples also showed the presence of possible soil contaminants such as Pb and As, and its use as a soil amendment is not recommended, even though the SC at 450 ? was the only nonalkaline biochar in this study. The M feedstock produced biochar with the highest surface area (600 m(2) g(-1)) and carbon content based on loss on ignition (94.98%); nevertheless, the M biochar reduced soil microbial enumeration and respiration. This reduction increased with increasing pyrolysis temperature. Therefore, the M biochar feedstocks are not recommended for improving soil health and may be tested in the future as a microbial inhibitor for soil-borne plant pathogens. Considering the physicochemical properties and the biochar impact on soil, D at 600 ? was the best biochar selected for further studies as a soil amendment. The large differences in biochar physicochemical properties and their effect on soil microbes observed in this study suggest that the feedstock type and pyrolysis temperatures must be considered during biochar amendment production for improving soil health in arid-land agroecosystems.
英文关键词	Soil health Biochar pyrolysis Organic waste Feedstock quality Mesquite trees
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000861803700003
WOS关键词	CARBON STABILITY ; SLOW PYROLYSIS ; PLANT BIOMASS ; ORGANIC WASTE ; SURFACE-AREA ; BY-PRODUCTS ; ADSORPTION ; SLUDGE ; VALORIZATION ; AGRICULTURE
WOS类目	Chemistry, Analytical ; Energy & Fuels ; Engineering, Chemical
WOS研究方向	Chemistry ; Energy & Fuels ; Engineering
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/393278
推荐引用方式 GB/T 7714	Al-Rabaiai, Ahmed,Menezes-Blackburn, Daniel,Al-Ismaily, Said,et al. Customized biochar for soil applications in arid land: Effect of feedstock type and pyrolysis temperature on soil microbial enumeration and respiration[J],2022,168.
APA	Al-Rabaiai, Ahmed.,Menezes-Blackburn, Daniel.,Al-Ismaily, Said.,Janke, Rhonda.,Pracejus, Bernhard.,...&Bol, Roland.(2022).Customized biochar for soil applications in arid land: Effect of feedstock type and pyrolysis temperature on soil microbial enumeration and respiration.JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS,168.
MLA	Al-Rabaiai, Ahmed,et al."Customized biochar for soil applications in arid land: Effect of feedstock type and pyrolysis temperature on soil microbial enumeration and respiration".JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS 168(2022).