全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

Corresponding analysis on rice grain heavy metal pollution in Fujian Province
福建省水稻稻米重金属污染的对应分析

Keywords: Oryza sativa,Heavy metal pollution,Genetic diversity,Corresponding analysis
水稻
,重金属污染,遗传差异,对应分析

Full-Text   Cite this paper   Add to My Lib

Abstract:

By the methods of environmental statistics and corresponding analysis,this paper collected 38 early and late rice grain samples from the middle,southern,northern,western and eastern parts of Fujian Province to detect their Hg,As,Cr,Cd and Pb contents,and to search for the main factors resulting in the difference of rice cropping type in different regions,aiming at further understanding the relationships between heavy metal pollution and rice cropping type.The results showed that among the test heavy metals in grain,Pb had the highest percentage(100%) beyond the standard level,followed by Hg (78.95%),Cd (50.5%) and Cu (2.63%),while As did not surpass the standard level.It therefore could be concluded that Pb and Cd were the main factors resulting in the difference of rice cropping type in different regions.The results also showed that 38 rice grain samples could be clustered into 7 groups,indicating that different rice cropping types would significantly cause different degrees of heavy metal pollution,which suggested that the best way in controlling and preventing rice grain heavy metal pollution could be the approach of combining site-controlling with variety selection,based on the situation of different regions and rice cropping systems.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133