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当前位置: 首页 > 文章 > 大田县茶园土壤和茶叶中锌含量及影响因素分析 茶叶学报 2017 (4) 179-183
Position: Home > Articles > Factors Affecting Zinc Contents in Tea Leaves and Plantation Soil at Datian County Acta Tea Sinica 2017 (4) 179-183

大田县茶园土壤和茶叶中锌含量及影响因素分析

作  者：
王峰;陈玉真;单睿阳;臧春荣;陈常颂;尤志明;余文权
单  位：
福建省农业科学院茶叶研究所;福建省农业科学院
关键词：
茶园土壤;锌含量;有效锌;富集系数;影响因素
摘  要：
采集了大田县25份茶园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锌含量及其影响因素。结果表明:大田县茶园土壤全锌含量为60.1~210.0 mg·kg~(-1)(均值106.1 mg·kg~(-1)),高于福建省土壤全锌含量背景值(87.7 mg·kg~(-1));土壤有效锌含量为0.8~10.9 mg·kg~(-1)(均值为3.8 mg·kg~(-1)),约有20%土壤样品低于高产茶园土壤有效锌临界值(2.0 mg·kg~(-1));锌活化率1.1%~5.7%,均值为3.3%。供试茶叶锌含量为60.0~96.1mg·kg~(-1)(均值为73.0mg·kg~(-1)),明显高于我国茶叶锌含量的平均值(40.6mg·kg~(-1)),均达到了天然富锌茶标准。茶园土壤全锌与土壤有效锌之间呈极显著正相关。茶叶锌富集系数与土壤全锌、有效锌和锌活化率呈极显著负相关,与其它理化性质之间相关性不显著。总体而言,大田县茶园土壤全锌和有效锌含量丰富,茶叶中锌含量达到了天然富锌茶标准,具备开发天然富锌茶的潜力。
译  名：
Factors Affecting Zinc Contents in Tea Leaves and Plantation Soil at Datian County
作  者：
WANG Feng;CHEN Yu-zhen;SHAN Rui-yang;ZANG Chun-rong;CHEN Chang-song;YOU Zhi-ming;YU Wen-quan;Tea Research Institute,Fujian Academy of Agricultural Sciences;Agriculture Ecology Institute,Fujian Academy of Agricultural Sciences;
关键词：
tea plantation soil;;zinc content;;available zinc;;accumulation coefficient;;affecting factor
摘  要：
A survey on the zinc contents in tea leaves and plantation soil was conducted in Datian county to determine the factors affecting the presence of the mineral. Twenty-five samples of soil as well as tea leaves(1-bud-2-leaves)from the bushes grown on the same lot were collected for analysis. The results showed that the total zinc in soils ranged from 60. 1 to 210. 0 mg · kg~(-1) with a mean of 106. 1 mg · kg~(-1), which was significantly higher than 87. 7 mg · kg~(-1) for the provincial average. The available zinc in soil were 0. 8 ~10. 9 mg · kg~(-1) with a mean of 3. 8 mg · kg~(-1). There were approximately 20% soil samples that had a zinc concentration lower than the critical 2. 0 mg · kg~(-1) set for tea plantations. The zinc activating rates at the tested areas ranged from 1. 1 % to 5. 7% with a mean of 3. 7%. In the tea leaves, the zinc contents were 60. 0 to 96. 1 mg · kg~(-1) with a mean of 73. 0 mg · kg~(-1). It was significantly higher than that of the major teas in China, which is 40. 6 mg · kg~(-1). Thus, the teas sampled were considered zinc-rich by the national standard. There was a significant correlation between the contents of total zinc and available zinc in the soil samples. The zinc accumulation coefficient in tea leaves and the total and available zinc in the corresponding soil were significantly inversely correlated,but not significantly correlated with other soil physical and chemical properties. The plantation soil in the county appeared relatively rich in total and available zinc which represented a potential for developing zinc-rich functional tea products for the industry in Datian.

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