福建农业学报 ›› 2018, Vol. 33 ›› Issue (9): 986-993.doi: 10.19303/j.issn.1008-0384.2018.09.017

• 资源与环境科学 • 上一篇    

闽中茶园土壤和茶叶铁锰含量及影响因素研究

陈玉真1, 单睿阳1, 王峰1, 林栋良2, 臧春荣2, 陈常颂1, 尤志明1, 余文权2   

  1. 1. 福建省农业科学院茶叶研究所, 福建 福安 355015;
    2. 福建省农业科学院, 福建 福州 350013
  • 收稿日期:2018-03-12 修回日期:2018-08-14 发布日期:2019-03-28
  • 通讯作者: 陈常颂(1973-),男,研究员,主要从事茶学研究(E-mail:ccs6536597@163.com);余文权(1972-),男,教授级高级农艺师,主要从事茶学研究(E-mail:825938828@qq.com) E-mail:ccs6536597@163.com;825938828@qq.com
  • 作者简介:陈玉真(1985-),女,助理研究员,主要从事茶树栽培与环境生态研究(E-mail:taotaoyuzhen@163.com)
  • 基金资助:
    国家茶叶产业技术体系(CARS-19);福建省财政厅项目(20151297);福建省科技重大专项(2017NZ0002);福建省农业科学院科技创新团队(STIT2017-1-3)

Factors Affecting Iron and Manganese Contents of Tea leaves and Plantation Soil in Central Fujian

CHEN Yu-zhen1, SHAN Rui-yang1, WANG Feng1, LIN Dong-liang2, ZANG Chun-rong2, CHEN Chang-song1, YOU Zhi-ming1, YU Wen-quan2   

  1. 1. Tea Research Institute, Fujian Academy of Agricultural Sciences, Fu'an, Fujian 355015, China;
    2. Fujian Academy of Agricultural Sciences, Fuzhou, Fujian 350013, China
  • Received:2018-03-12 Revised:2018-08-14 Published:2019-03-28

摘要: 通过实地调查,采集了闽中大田县25个茶园表层土壤、4个剖面土壤样品及相应的茶叶样品(一芽二叶),分析了茶园土壤和茶叶的铁锰含量、剖面分布特征及其影响因素,结果表明:大田县茶园土壤全铁、有效铁、全锰和有效锰含量均值分别为61.08 g·kg-1、144.42 mg·kg-1、258.97 mg·kg-1和33.72 mg·kg-1,全铁和有效铁含量丰富,而全锰和有效锰含量较低,约50%茶园土壤存在缺锰现象;茶园土壤全铁剖面分布不明显,但在20~40 cm土层出现富集现象;有效铁、全锰和有效锰含量随土层深度增加呈现下降趋势;土壤有机质、pH值、全磷和速效磷含量是影响茶园土壤全铁和有效铁含量的主要因素,土壤全锰和有效锰则与土壤有机质和pH值关系密切。茶叶中铁平均含量为164.52 mg·kg-1,锰平均含量为849.73 mg·kg-1,茶叶对锰的富集系数远高于铁;茶叶铁含量与土壤有效铁含量呈显著正相关;茶叶锰含量与土壤全锰和有效锰含量均呈显著正相关;茶叶对铁、锰的富集能力随着土壤铁、锰含量的升高而降低。

关键词: 茶园土壤, 铁锰含量, 剖面分布, 富集系数, 影响因素

Abstract: From a field survey at 25 plantations in Datian County, the iron and manganese contents in layers of soil and one-bud-2-leaves from the bushes grown on same sampling spots were determined. The distribution and factors affecting the variations on the mineral contents were analyzed.The average contents of total iron, available iron, total manganese and available manganese in the soil were 61.08 g·kg-1, 144.42 mg·kg-1, 258.97 mg·kg-1 and 33.72 mg·kg-1, respectively. The soil in the region were relatively rich in total and available iron, but low in those of total and available manganese.Nearly half of the soils sampled in the region was considered deficient in manganese. There was no significant difference in total iron in the 0-60 cm layer but richly accumulated in 20-40 cm.The available iron as well as the total and available manganese in soil decreased with depth below the surface.In the soil, the organic matters, pH, total and rapidly available phosphorus were important factors affecting the iron content; whereas,the total and available manganese closely related to the organic matters and pH. The average iron and manganese contents in the tea leaves were 164.52 mg·kg-1 and 849.73 mg·kg-1, respectively, and the accumulation coefficient of manganese was much higher than that of iron. The iron content in the tea leaves significantly correlated with the available iron in soil, while the manganese content with the total and available manganese in soil. The iron and manganese accumulation coefficient in the leaves decreased with increasing mineral contents inthe soil.

Key words: tea plantation soil, iron and manganese contents, distribution profile, accumulation coefficient, affecting factor

中图分类号: 

  • S154