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

文献类型：期刊论文

作者Chen, Dong1; Meng, Zhong-wen1; Chen, Yi-ping1,2
刊名ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
出版日期2020-09-28
页码10
关键词Soil amendment Industrial slag Antioxidant enzyme Trace metal Calcareous soil Health risk
ISSN号0944-1344
DOI10.1007/s11356-020-10929-3
通讯作者Chen, Yi-ping(chenyp@ieecas.cn)
英文摘要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.
WOS关键词HEAVY-METALS ; CONTAMINATED SOILS ; FURNACE SLAG ; PADDY FIELD ; CADMIUM ; L. ; SUBSTANCES ; INDUSTRIAL ; TOXICITY ; PLANTS
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
语种英语
WOS记录号WOS:000573481800001
出版者SPRINGER HEIDELBERG
资助机构Science and Technology Service Network Initiative (STS) of the Chinese Academy of Sciences
源URL[http://ir.ieecas.cn/handle/361006/15375]  
专题地球环境研究所_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.

入库方式： OAI收割

来源：地球环境研究所

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