茶园土壤水溶性氟与全氟和pH值的相关性研究

Correlation Research between Water Soluble Fluorine,Total Fluorine and pH Value of Tea-Plating Soil

研究了遂昌茶园土壤水溶性氟与全氟和pH的相关关系。结果表明，茶园土壤水溶性氟和全氟均随土层深度的增大而减小，茶园土壤pH随土层深度的增大而增大；在同一土层深度，土壤全氟含量比土壤水溶性氟含量高得多，随着土层深度的增加，茶园土壤水溶性氟在全氟中所占比例增加；在0～20cm深土层中，土壤水溶性氟与全氟和pH之间存在显著的相关性；在20～40cm深土层中，土壤水溶性氟含量与pH之间存在相关性，而土壤水溶性氟与全氟含量无相关性；在40～60cm深土层中，土壤水溶性氟与全氟含量和pH均无相关性。

The correlation among water soluble fluorine content, total fluorine content and pH value in tea - plating soil were researched . The experimental results showed that the water soluble fluorine content and total fluorine content decreased as the depth of the soil increased, and the soil pH value just on the contrary. In the same soil depth, the contents of total fluorine were much higher than that of water soluble fluorine. The proportion of water soluble fluoride in the entire was increase as the depth of the soil increased. The significant positive correlation was found between the water soluble fluorine contents and total fluorine contents, pH value in 0 - 20 cm depths of soil. The positive correlation was found between water soluble fluorine contents and pH value in 20 -40 cm depths of soil, while there were no correlation between water soluble fluorine contents and total fluorine contents. In the 40 -60 cm depths, there were no correlation between water soluble fluorine contents and total fluorine contents, pH value.