韩山师范学院 化学与环境工程学院,广东,潮州,521041
纸质出版:2018
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李张伟. 凤凰单枞茶树吸收土壤铬和锰的规律研究[J]. 水土保持通报, 2018,38(2):71-74.
LI Zhangwei. Absorption Law of Soil Cr and Mn in Fenghuang Dancong Tea Tree[J]. Bulletin of Soiland Water Conservation, 2018, 38(2): 71-74.
李张伟. 凤凰单枞茶树吸收土壤铬和锰的规律研究[J]. 水土保持通报, 2018,38(2):71-74. DOI: 10.13961/j.cnki.stbctb.2018.02.012.
LI Zhangwei. Absorption Law of Soil Cr and Mn in Fenghuang Dancong Tea Tree[J]. Bulletin of Soiland Water Conservation, 2018, 38(2): 71-74. DOI: 10.13961/j.cnki.stbctb.2018.02.012.
[目的]探究凤凰单枞茶树对土壤中铬和锰的吸收规律,为综合防治茶园土壤Cr和Mn污染提供科学依据。[方法]对粤东揭阳市揭东县宝山茶园凤凰单枞茶树和土壤进行采样,运用原子吸收分光光度计法测定茶叶、茶茎和茶根中Cr和Mn的含量,并采用乙酸提取法和原子吸收分光光度计法测定土壤样品中酸可提取态Cr和Mn的含量。[结果]茶树各器官Cr含量由高到低分布情况依次为:茶根 > 茶茎 > 茶叶;而Mn含量分布情况依次为:茶叶 > 茶茎 > 茶根。茶叶中Cr和Mn含量与土壤中酸可提取态Cr和Mn呈显著正相关性,茶茎中Cr含量与土壤中酸可提取态Cr也呈显著正相关性;茶叶、茶茎和茶根中的Cr含量均与土壤中有机质含量呈显著正相关性,茶根中的Mn含量与土壤pH值呈显著负相关性,茶叶中的Mn与土壤有机质呈显著正相关性。[结论]通过调节土壤酸可溶解态Cr和Mn,土壤pH值和有机质含量,从而控制茶树吸收Cr和Mn的量,可以达到防治茶叶重金属污染,提高茶叶质量的目的。
[Objective] Investigating the absorption rule of Cr and Mn in soil by Fenghuang Dancong tea
to provide a scientific basis for the integrated control of Cr and Mn pollution in tea garden soil.[Methods] The samples of tea tree and soil were collected from Baoshan tea garden which located at Jiedong County
Jieyang City
Guangdong Province. The contents of Cr and Mn in tea leaves
tea stems and tea roots were determined by flame atomic absorption spectrophotometer(AAS)
and the acid exchangeable fractions of Cr and Mn in soil were extracted according to acetic acid extraction method and measured by AAS.[Results] The Cr contents distributed in tea trees were:tea root > tea stem > tea leaves; while the Mn content were tea leaves > tea stem > tea root. Correlation analyses showed that the content of Cr and Mn in tea leaves was highly positive with acid exchangeable fraction of Cr and Mn in soil
the same correlation was also found for the content of Cr in tea stems. Furthermore
the Cr content of tea leaves
tea stems and tea roots had high positive correlations with soil organic matter in soil
the Mn content of tea leaves had similar correlation with soil organic matter. The content of Mn in tea roots was highly negative correlated with the soil pH values.[Conclusion] It is possible to restrict the uptake of Cr and Mn in tea tree by adjusting the content of acid exchangeable fractions of Cr and Mn
organic matter and pH value in soil. The heavy metal contamination in tea leaves could be inhibited and the quality of tea leaves could be improved.
张清海,龙章波,林绍霞.贵州云雾茶园土壤高含量重金属和砷在茶叶中的积累与浸出特征[J].食品科学,2013,34(8):212-215.
刘美雅,伊晓云,石元值,等.茶园土壤形状及茶树营养元素吸收、转运机制研究进展[J].茶叶科学,2015,35(2):110-120.
国家环境保护局科技标准司.GB15618-1995土壤环境质量标准[S].北京:中国标准出版社,1995:235-237.
中国土壤学会农业化学专业委员会编.土壤农业化学常规分析方法[M].北京:科学出版社,1984.
荆俊杰,谢吉民.微量元素锰污染对人体的危害[J].广东微量元素科学,2008,15(2):6-9.
戴宇,杨重法,郑袁明.土壤-植物系统中铬的环境行为及其毒性评价[J].环境科学,2009,30(11):3432-3440.
谢忠雷,郭平,刘鹏,等.茶园土壤锰的形态分布及其影响因素[J].农业环境科学学报,2007,26(2):645-650.
李张伟,庄东红.粤东凤凰山茶区土壤铜、铬化学形态分布及茶叶有效性研究[J].农业环境科学学报,2011,30(7):1314-1320.
李张伟,张敏,徐桂崧.粤东凤凰山茶区土壤锰、锌赋存形态特征及对茶叶的有效性[J].生态与农村环境学报,2011,27(5):7-12.
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