一种简单的土壤热惯量野外实测方法

A SIMPLE METHOD OF MEASURING SOIL THERMAL INERTIA IN FIELD CONDITIONS AND ITS APPLICATION

本文采用一种野外实地测量土壤热扩散率结合室内测定该土壤热容量的方法，计算实际情况下土壤热惯量值与水分含量间的关系。文中对该测量方法进行了推导，并将之应用于黄淮海地区不同土壤类型中，在给出不同土壤类型和质地的热惯量值的同时，对该方法的重复性、稳定性、准确性进行了检验。

A new, simple method has been adopted of measuring the soil thermal inertia in field conditions combined with determining the thermal capacity of the soil in laboratory, by which the relation between the actual value of soil thermal inertia and the content of soil moisture can be calculated. This method is introduced in the Present paper and has been aPPlied to different types of soil in North China Plain.The reproducibility, stability and accuracy of the method were examined when the thermal inertia values for different soil (including 4 types of soils and 4 kinds of soil texture) were given. The resultS showed that the proposed method was applicable.