茶园土壤含硒量与饮茶预防有关地方病的研究

STUDY ON THE SE CONTENT IN TEA GARDEN SOIL AND THE PREVENTATION OF THE LOCAL DISEASES BY DRINKING THE TEA

本文研究了3个茶园土壤的PH值与土壤中的全硒量及水溶性硒量之间的关系，并对土壤的缓冲性能及其由来作了一些探讨．结果表明：土壤全硒量与土壤PH值没有明显相关性，而土壤中全硒量与土壤PH值只是影响土壤水溶性硒的主要因素，土壤水溶性硒在土壤PH值4.5～7.5范围内有良好的线性相关，测定的3个茶园土壤的相关系数分别为0.994、0.967、0.980．当PH值增大时，3个土壤的水溶性硒量和硒的水溶率均随着增大，而PH值为7.5时，3个土壤样硒的水溶率达30％左右：

In this paper the relations among the PH value,total amount of Se and water solubie Se of soil in three tea garden are studied and the buffer propety of soil and its origin are investigated.Result shows,there is no apparent interrelation between total amount of Se and PH of soil,and the main factors effecting the water soluble Se are the total amount of Se and the PH of soil.The amount of water soluble Se has apparent linear correlation to total amount of soil Se within the range of PH 4.5--7.5,correlation coefficients in three tea garden are 0.994,0.967,0.980,respectively.When the soil PH increased.both the amount and the rate of water soluble Se rise.As PH=7.5,the rate of water soluble Se of soil in three tea garden reaches 30％＋－.