Effect of humic acid on seedling growth and trace metal accumulation of pak choi (Brassica chinensisL.) cultivated on molybdenum slag-spiked soil

doi:10.1007/s11356-020-10929-3

IEECAS OpenIR > 生态环境研究室

	Effect of humic acid on seedling growth and trace metal accumulation of pak choi (Brassica chinensisL.) cultivated on molybdenum slag-spiked soil
	Chen, Dong 1; Meng, Zhong-wen 1; Chen, Yi-ping 1,2
通讯作者	Chen, Yi-ping(chenyp@ieecas.cn)
	2020-09-28
发表期刊	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
ISSN	0944-1344
页码	10
摘要	The growth performance and trace metal accumulation of pak choi (Brassica chinensisL.) were investigated to evaluate the ameliorative effect of humic acid on molybdenum (Mo) slag-spiked calcareous soil. Calcareous soil spiked with 5.0% (w/w) slag was amended with humic acid derived from leonardite from 0 to 5.0% (w/w). With increasing application rate, humic acid enhanced the antioxidative capacity of pak choi seedling, as indicated by increases in the activities of antioxidant enzymes (superoxide dismutase, catalase, and peroxidase) and a decrease in malondialdehyde content; humic acid application also increased total chlorophyll content, leaf area, seedling height, and fresh biomass of pak choi. These stimulation effects started to decrease above 2.5-5.0% application of humic acid. The contents of trace metals (Cu, Mn, Zn, As, Cd, and Pb) in the aboveground part of pak choi seedling generally decreased at low rates (0.5% and 1.0%), and then increased with higher rates (2.5% and 5.0%) of humic acid application. Health risk assessment of trace metals based on target hazard quotient (THQ) suggested that consuming pak choi grown on these soils is safe. Low rate (0.5%) of humic acid reduced the potential health risk, while high rates (2.5% and 5.0%) accumulated trace metals and increased health risk. Humic acid could be added to Mo slag-spiked calcareous soil for the yield and food safety of pak choi, but the overuse of humic acid should be avoided.
关键词	Soil amendment Industrial slag Antioxidant enzyme Trace metal Calcareous soil Health risk
DOI	10.1007/s11356-020-10929-3
关键词[WOS]	HEAVY-METALS ; CONTAMINATED SOILS ; FURNACE SLAG ; PADDY FIELD ; CADMIUM ; L. ; SUBSTANCES ; INDUSTRIAL ; TOXICITY ; PLANTS
收录类别	SCI ; SCI
语种	英语
资助项目	Science and Technology Service Network Initiative (STS) of the Chinese Academy of Sciences[KFJ-EW-STS-124]
WOS研究方向	Environmental Sciences & Ecology
项目资助者	Science and Technology Service Network Initiative (STS) of the Chinese Academy of Sciences
WOS类目	Environmental Sciences
WOS记录号	WOS:000573481800001
出版者	SPRINGER HEIDELBERG
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/15376
专题	生态环境研究室
通讯作者	Chen, Yi-ping
作者单位	1.Chinese Acad Sci, State Key Lab Loess & Quaternary Geol, Inst Earth Environm, 97 Yanxiang Rd, Xian 710061, Shaanxi, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Chen, Dong,Meng, Zhong-wen,Chen, Yi-ping. Effect of humic acid on seedling growth and trace metal accumulation of pak choi (Brassica chinensisL.) cultivated on molybdenum slag-spiked soil[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2020:10.
APA	Chen, Dong,Meng, Zhong-wen,&Chen, Yi-ping.(2020).Effect of humic acid on seedling growth and trace metal accumulation of pak choi (Brassica chinensisL.) cultivated on molybdenum slag-spiked soil.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,10.
MLA	Chen, Dong,et al."Effect of humic acid on seedling growth and trace metal accumulation of pak choi (Brassica chinensisL.) cultivated on molybdenum slag-spiked soil".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH (2020):10.