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DOI	10.1080/03650340.2019.1694145
	Assessing cadmium availability of contaminated saline-sodic soils as influenced by biochar using the adsorption isotherm models
	Zahedifar, Maryam 1; Moosavi, Ali Akbar 2
通讯作者	Zahedifar, Maryam
来源期刊	ARCHIVES OF AGRONOMY AND SOIL SCIENCE
ISSN	0365-0340
EISSN	1476-3567
出版年	2020
卷号	66 期号:12 页码:1735-1752
英文摘要	In arid/semi-arid regions, soil salinization, sodification and contamination by heavy metals (HMs) are the main constrains to plant growth, crop production and human health. Biochar can affect soil behaviors, e.g. adsorption of HMs that is one of the most effective techniques for reducing their bioavailability. Effect of three levels (0%, 2% and 4% wt) of sugarcane bagasse-derived biochar and two cadmium (Cd) levels (0 and 50 mg Cd kg(-1) soil as Cd(NO3)(2)) on Cd adsorption of saline, sodic, saline-sodic and normal soils were evaluated through studying adsorption isotherms. Six isotherm models were fitted to the data and the best model were chosen. The maximum Cd adsorption (694 mg kg(-1)) obtained in sodic soils without biochar treatment. Cadmium removal decreased when dosage of the applied biochar increased. The minimum Cd removal obtained as 17%, 21%, and 23% in control, 2% and 4% biochar-treated saline soils, respectively. Biochar increased Cd adsorption in salt-affected soils. Increasing pH in soil solution after biochar addition resulted in an increase in net negative surface charge and the affinity of soil particles for Cd adsorption. Consequently, 2% biochar could ameliorate Cd contamination. However, Cd adsorption decreased when dosage of the applied biochar increased from 2% to 4%.
英文关键词	Heavy metals amendments saline and sodic soils isotherm models sugarcane bagasse
类型	Article
语种	英语
国家	Iran
收录类别	SCI-E
WOS记录号	WOS:000499314200001
WOS关键词	HEAVY-METALS ; CALCAREOUS SOILS ; AQUEOUS-SOLUTION ; IONIC-STRENGTH ; SORPTION ; REMOVAL ; CD ; PH ; BIOAVAILABILITY ; ZINC
WOS类目	Agronomy ; Soil Science
WOS研究方向	Agriculture
EI主题词	2019-11-29
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/311015
作者单位	1.Fasa Univ, Coll Agr & Nat Resources, Dept Rangeland & Watershed Management, Fasa, Iran; 2.Shiraz Univ, Coll Agr, Dept Soil Sci, Shiraz, Iran
推荐引用方式 GB/T 7714	Zahedifar, Maryam,Moosavi, Ali Akbar. Assessing cadmium availability of contaminated saline-sodic soils as influenced by biochar using the adsorption isotherm models[J],2020,66(12):1735-1752.
APA	Zahedifar, Maryam,&Moosavi, Ali Akbar.(2020).Assessing cadmium availability of contaminated saline-sodic soils as influenced by biochar using the adsorption isotherm models.ARCHIVES OF AGRONOMY AND SOIL SCIENCE,66(12),1735-1752.
MLA	Zahedifar, Maryam,et al."Assessing cadmium availability of contaminated saline-sodic soils as influenced by biochar using the adsorption isotherm models".ARCHIVES OF AGRONOMY AND SOIL SCIENCE 66.12(2020):1735-1752.