【摘要】 综述了国内外近20a来测定土壤含水量的研究情况,总结了国内外常用的测定土壤含水量的方法及其原理, 比较分析了各种测定方法的优缺点,介绍了一些新兴的土壤含水量测试技术,提出了本领域中存在的主要问题及研究展望,指出未来的土壤含水量测定方法应当是朝着高精度、低成本、非破坏、自动化等方向发展。更多还原

【Abstract】 In this paper, the national and international developments, as well as the theories and methods for measuring soil water content since 1980s are summarized since. The advantages and disadvantages of all the methods mentioned in the paper are compared with each other. Some new powerful techniques in a nondestructive way to measure soil water content are described. In addition, the main questions in this field are proposed. The techniques and methods for measuring soil water content will be developed in a high -precision, low-cost, nondestructive and automatic way.更多还原