[目的]评价茶园土壤氟的生物有效性.[方法)利用我国典型茶区21个土壤样品进行茶苗盆栽试验,探讨表征茶叶氟吸收的主要形态.[结果]不同土壤上生长的茶苗茶叶氟含量的差异叶较茎、主根和吸收根大.茶苗叶片氟含量和氟积累量随着土壤水溶性氟和稀盐浸提态氟含量的升高而显著增加.土壤全氟含量对茶苗各部分氟含量均没有显著影响.[结论]土壤水溶性氟和稀盐可浸提态氟是表征土壤氟生物有效性的良好指标.%[ Objective ] The aim was to evaluate the bioavailability of fluoride in tea orchard soils. [ Method ] A pot experiment with 21 soil samples taken from typical tea plantations of China was carried out,and discussed the main forms of tea leaves absorbing fluoride. [ Result ]The fluoride content in tea leaves was significantly different from those in stems, main roots and absorption roots. The leaves fluoride content and fluoride accumulation amount significantly increased with the increase of soil water soluble fluoride and diluted CaCl2 solutions extracting fluoride content. Soil total fluoride content had no significant influence on fluoride content of all organs of tea seedling. [ Conclusion] Soil water soluble fluoride and diluted CaCl2 solutions extracting fluoride are good indices to characterize the bioavailabilityof soil fluoride.
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