干旱区生态环境知识资源中心(Arid): Characterization of biochars produced from seven biomasses grown in three different climate zones

Arid

DOI	10.1007/s11631-015-0072-4
	Characterization of biochars produced from seven biomasses grown in three different climate zones
	Yang, Fang; Lee, Xin-qing; Wang, Bin
通讯作者	Yang, F ; Lee, XQ
来源期刊	ACTA GEOCHIMICA
ISSN	2096-0956
EISSN	2365-7499
出版年	2015
卷号	34 期号:4 页码:592-600
英文摘要	The characterization of biochars produced from seven feedstocks (four crop straws: cotton stalks, wheat stalks, rape stalks and corn stalks; three hardwoods: Salix babylonica Linn, Platanus orientalis and Robinia pseudoacacia) grown in three different climate zones (arid, semiarid and humid regions) were investigated for their potential as soil amendments. The results show that ash content, K+, Ca2+, Mg2+, CEC, Cl-, pH, and salinity are generally higher in the straw biochars (STR-BCs) than the hardwood biochars (HW-BCs). However, there is no significant distinction between the two categories of biochars in terms of surface acidity, surface basicity, TC, available phosphorus (A-P) or NH4+-N. The contents of K+, Na+, Ca2+, Mg2+, EC, Cl- of all 21 biochars increase in semiarid and arid regions in comparison to humid regions, while ash content, TC, CEC, pH, surface acidity, surface basicity, A-P and NH4+-N show no correlation to the climate. From the perspective of K+, CEC and the remediation of acidified soils, STR-BCs are preferable over HW-BCs as a soil amendment, while HW-BCs are more suitable than STR-BCs in soils with a saline problem. EC, Na+ and Cl- increase with the water stress of the climatic regions, and the high saline ions of biochar in the arid regions indicate that biochars produced from local biomass, especially from crop residues, are at a high risk of exacerbating soil salinization. The big difference in the critical chemical properties, such as the saline ions, stresses that biochar should be taken on a regional basis as well as a biomass basis, with the general assumption that whether biochar as a soil amendment is good or bad is groundless.
英文关键词	Biochar Crop straw Hardwood Characterization Soil amendment
类型	Article
语种	英语
收录类别	ESCI
WOS记录号	WOS:000381221700012
WOS关键词	ACTIVATED CARBON ; VACUUM PYROLYSIS ; SOIL ; EMISSIONS ; CHARCOAL ; N2O ; CO2
WOS类目	Geochemistry & Geophysics
WOS研究方向	Geochemistry & Geophysics
Scopus学科分类	Chengdu Hydrogeol & Engn Geol Team, Chengdu 610072, Peoples R China.
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/331258
作者单位	[Yang, Fang; Lee, Xin-qing; Wang, Bin] Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang 550002, Peoples R China; [Yang, Fang] Chengdu Hydrogeol & Engn Geol Team, Chengdu 610072, Peoples R China
推荐引用方式 GB/T 7714	Yang, Fang,Lee, Xin-qing,Wang, Bin. Characterization of biochars produced from seven biomasses grown in three different climate zones[J],2015,34(4):592-600.
APA	Yang, Fang,Lee, Xin-qing,&Wang, Bin.(2015).Characterization of biochars produced from seven biomasses grown in three different climate zones.ACTA GEOCHIMICA,34(4),592-600.
MLA	Yang, Fang,et al."Characterization of biochars produced from seven biomasses grown in three different climate zones".ACTA GEOCHIMICA 34.4(2015):592-600.