摘要
野外和室内试验表明，用６０５０Ⅺ型时域反射仪（ＴＤＲ）测定土壤含水率与中子仪法相比，速度快，精度高；还发现随着导棒长度的增大，ＴＤＲ与烘干法测定结果的偏差有所增大。
The results of field and in-door experiments and comparison with Neu-tron Probe showed that the 6050Ⅺ Time-Domain Reflectometry(TDR)had high preci-sion and speed in measuring soil water content,also the longer the wave guides is,thebigger the variation error in the results measured with TDR,This paper presents five ad-justing formulas for the length selection of water guides.
出处
《西北农业大学学报》
CSCD
1996年第4期98-101,共4页
Journal of Northwest Sci-Tech University of Agriculture and Forestry（Natural Science Edition)
基金
中科院"百人计划"
国家自然科学基金
内蒙古自治区水利厅资助项目
关键词
时域反射仪
土壤含水率
测量精度
中子仪
Time-Domain Reflectometry,soil water content,measuring precision,neutron probe
