干旱区生态环境知识资源中心(Arid): 生物炭对苏丹草吸收Cd、Pb的影响

Arid

	生物炭对苏丹草吸收Cd、Pb的影响
其他题名	Effect of biochar on Cd and Pb absorption of sudangrass
	董双快; 王丽萍; 李典鹏; 胡保安; 贾宏涛
来源期刊	干旱区资源与环境
ISSN	1003-7578
出版年	2017
卷号	31 期号:5 页码:186-191
中文摘要	为了探讨生物炭添加对苏丹草吸收Cd、Pb的影响,在灰漠土中外源添加不同浓度的Cd和Pb,在此基础上添加5 ~ 20g /kg生物炭,通过盆栽试验研究生物炭对Cd、Pb在苏丹草中的分布及累积特征的影响。结果表明:添加生物炭和低浓度重金属能促进苏丹草的生长,使根、茎、叶生物量显著增加(P < 0.05),但高浓度重金属的添加会抑制苏丹草的生长。在低中浓度重金属Cd-Pb的处理下,添加5 ~ 20g /kg生物炭,Cd在苏丹草根、茎、叶中质量分数、富集系数、转移系数及地上部分的累积量均呈降低趋势,Pb则相反。说明了生物炭的添加能抑制低中浓度Cd在苏丹草中的迁移。在高浓度重金属Cd-Pb的作用下添加生物炭对Cd和Pb在苏丹草中迁移均有抑制作用。
英文摘要	In order to investigate the effect of biochar addition on Cd and Pb absorption of sudangrass,different concentrations of Cd,Pb and 5 ~20 g /kg biochar were added in gray desert soil to study the distribution and accumulation of Cd and Pb in sudangrass by pot experiment. The results showed that the growth of sudangrass was promoted after biochar addition and low concentration of Cd and Pb,and the biomass of root,stem and leaves increased significantly (P < 0.05),but high concentrations of Cd and Pb inhibited the growth of sudangrass. The enrichment and transfer coefficient,the cumulative amount of Cd in the ground and the content of Cd in roots,stems and leaves reduced significantly; the effect of Pb is the opposite when the concentrations of Cd and Pb were 40 and 50mg /kg, 80and 100 mg /kg,and adding 5 ~20g /kg biochar. It means that biochar inhibited the migration of Cd in sudangrass when the concentrations of Cd and Pb were 40 and 50mg /kg,80and 100mg /kg,respectively,and biochar inhibited the migration of Pb and Cd in sudangrass when the concentrations of Cd and Pb were 160 and 200 mg /kg.
中文关键词	生物炭 ; 苏丹草 ; 重金属 ; 累积特征
英文关键词	biochar sudangrass heavy metal accumulation characteristics
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENVIRONMENTAL SCIENCES
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:5960967
来源机构	新疆农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/236060
作者单位	新疆农业大学草业与环境科学学院, 乌鲁木齐, 新疆 830052, 中国
推荐引用方式 GB/T 7714	董双快,王丽萍,李典鹏,等. 生物炭对苏丹草吸收Cd、Pb的影响[J]. 新疆农业大学,2017,31(5):186-191.
APA	董双快,王丽萍,李典鹏,胡保安,&贾宏涛.(2017).生物炭对苏丹草吸收Cd、Pb的影响.干旱区资源与环境,31(5),186-191.
MLA	董双快,et al."生物炭对苏丹草吸收Cd、Pb的影响".干旱区资源与环境 31.5(2017):186-191.