WANG Ping,ZHANG Qing-hai,LIU Jing,et al.Characteristics and Principal Component Analysis of Soil Elements Under Different Ecological Models of Pseudostellaria Origins in Shibing of Guizhou[J].HEILONGJIANG AGRICULTURAL SCIENCES,2018,(06):40-45.[doi:10.11942/j.issn1002-2767.2018.06.0040]
贵州施秉太子参产地不同生态模式下土壤元素特征及主成分分析
- Title:
- Characteristics and Principal Component Analysis of Soil Elements Under Different Ecological Models of Pseudostellaria Origins in Shibing of Guizhou
- Keywords:
- riaheterophylla; soil; element; principal component analysis
- 文献标志码:
- A
- 摘要:
- 为研究贵州施秉太子参产地土壤元素特征,采用ICP-MS测定了土壤9种元素(Na、Mg、K、Ca、Mn、Fe、Co、Ni、Mo)及6种重金属(Cr、Cu、As、Cd、Hg、Pb)含量,运用主成分分析法对不同生态模式下土壤元素特征进行分析,建立了土壤微量元素和重金属主成分模型。结果表明: 土壤中微量元素Mg、K、Ca、Fe、Mo的平均含量均表现为大棚>示范区>林地,受人为因素影响较大;Mn、Co、Ni元素分布存在不均匀性,均以大棚中含量最小。元素特征可由3个主成分来反映,其贡献率分别为F1-(Ca、K、Mo、Mn、Co)26.176%,F2-(Mg、Fe、Ni、Mn)23.068%,F3-(Na、Mo、Ni) 13.215%。贵州太子参产地土壤存在Cd、Hg污染,主要原因是土壤背景值较高,而大棚土壤As含量明显高于示范区和林地;土壤重金属可由3个主成分来反映,其贡献率分别为F1-(AsPb)-35.293%,F2-(Cd)18.463%和F3-(Hg)16.888%。
- Abstract:
- In order to study the soil element characteristics,contents of nine elements(Na,Mg,K,Ca,Mn,Fe,Co,Ni,Mo) and six kinds of heavy metals (Cr,Cu,As,Cd,Hg,Pb) in soil were detected by using ICP-MS.Soil element characteristics under different ecological modes were analyzed and main component models were established by using method of principal component analysis.The results showed that the average contents of soil trace elements Mg,K,Ca,Fe,Mo showed greenhouse> demonstration zone> woodland,influenced by human factors,and Mn,Co,Ni showed uneven distribution,contents of these elements were minimum in greenhouse.Three main components could express characteristic of trace elements,their contribution rates were F1- (Ca,-K,Mo,Mn,Co) 26.176%,F2- (Mg,Fe,Ni,Mn) 23.068%,and F3- (Na,Mo,Ni) 13.215% respectively.Due to the high background values of soil,Guizhou heterophylla origin showed Cd,Hg pollution,and content of As in greenhouse soil was significantly higher than that in demonstration soil and forest soil.Three main components could reflect their contribution rates as F1- (As and Pb) 35.293%,F2(Cd)18.463%,and F3- (Hg) 16.888%- respectively.The analysis results may help us overall understanding the element characteristics and heavy metal contamination of Guizhou heteophylla origin,and provide a reference for trace elements balance and priority pollutants control.
参考文献/References:
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备注/Memo
收稿日期:2018-03-02基金项目:国家自然科学基金地区基金项资助目(4056-1075);贵州省科技支撑计划资助项目(黔科合支撑\[2017\]2860、2044);贵州省优秀青年科技人才资助项目(黔科合平台人才\[2017\]-5622)。第一作者简介:王萍(1981-),女,硕士,高级农艺师,从事土壤重金属研究。E-mail:45940970@qq.com。通讯作者:张清海(1982-),男,博士,教授,从事环境与食品质量安全研究。E-mail:zhqh8@163.com。