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Effects of elevated carbon dioxide on metal transport in soil-crop system: results from a field rice and wheat experiment
Luo, Xiao-San; Zhang, Dan; Hu, Zhenghua; Liu, Chao; Zhao, Zhen; Sun, Wenjuan1; Fang, Xiaokun; Fan, Peipei
AbstractPurpose Climate changes have significant impacts on crop yield, and also on crop quality related to food safety and human health. This study investigated the influences of atmospheric carbon dioxide (CO2) enrichment on cereal metal accumulation in soil-crop system. Materials and methods Field rotation experiments of rice (Oryza sativa) and winter wheat (Triticum aestivum) were conducted by simulating elevated CO2 concentrations (e[CO2]) in 12 open-top chambers (OTCs). The treatments included the ambient [CO2] (CK), 80 ppm (T1) and 200 ppm (T2) above ambient condition, respectively. Different parts of above-ground plant samples were analyzed for metal concentrations (Cu, Zn, Fe, Mn; Ca, Mg) at the key growth stages, assisted with analyses of soil pH, metal bioavailability, and transfer factors (TFs). Results and discussion The result patterns were opposite for rice and wheat. After the increased transport from rhizospheric soil solution due to the metal mobilization by declined pH, most metals increased their distributions in rice grain, husk, and stem than leaf. While for winter wheat, though soil metal bioavailability was also increased, their distributions in grain, husk, and stem were decreased owing to possible carbohydrate dilution effect or cation competition, except some macro metals distributed more in leaf. Conclusions Since results of metals and crops are not always consistent among various reports, the mechanisms of essential/toxic metal transport in soil-crop system affected by climate change and its impacts on human health deserve further studies.
KeywordClimate change Food safety Heavy metals Mineral nutrition Soil-plant system
Subject AreaEnvironmental Sciences ; Soil Science
Indexed BySCI
WOS Research AreaEnvironmental Sciences & Ecology ; Agriculture
WOS IDWOS:000491550500008
Publication PlaceHEIDELBERG
Funding OrganizationNatural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [NSFC 41471418, 41530533, 41775152] ; Distinguished Talents of Six Domains in Jiangsu Province [2014-NY-016] ; Startup Foundation for Introducing Talent of NUIST [2017r001]
Corresponding Author Emailxsluo@nuist.edu.cn ; zhhu@nuist.edu.cn
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Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.Nanjing Univ Informat Sci & Technol, Collaborat Innovat Ctr Atmospher Environm & Equip, Dept Agr Resources & Environm, Jiangsu Key Lab Agr Meteorol, Nanjing 210044, Jiangsu, Peoples R China
2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
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GB/T 7714
Luo, Xiao-San,Zhang, Dan,Hu, Zhenghua,et al. Effects of elevated carbon dioxide on metal transport in soil-crop system: results from a field rice and wheat experiment[J]. JOURNAL OF SOILS AND SEDIMENTS,2019,19(11):3742-3748.
APA Luo, Xiao-San.,Zhang, Dan.,Hu, Zhenghua.,Liu, Chao.,Zhao, Zhen.,...&Fan, Peipei.(2019).Effects of elevated carbon dioxide on metal transport in soil-crop system: results from a field rice and wheat experiment.JOURNAL OF SOILS AND SEDIMENTS,19(11),3742-3748.
MLA Luo, Xiao-San,et al."Effects of elevated carbon dioxide on metal transport in soil-crop system: results from a field rice and wheat experiment".JOURNAL OF SOILS AND SEDIMENTS 19.11(2019):3742-3748.
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