摘要
对用TDR法、中子法和重量法测得的土壤水含量观测值的比较结果表明 ,随着土壤深度和测量时间的变化 ,中子法的平均测定误差为 3.76 % ,TDR法为 3.5 9%。并且这 2种方法的土壤水含量观测值的时空变化和重量法具有相同的趋势。因此 。
A comparison of measuring soil water content with oven dry, neutron probe and TDR was made It showed that the mean error in soil depth and time of neutron probe measurement was 3 76% and that of TDR was 3 59% Soil water dynamics simulated with the regressive equations built with data measured with neutron probe and TDR were similar The result showed that it was reliable to measure soil water content both with neutron probe and TDR
出处
《河北农业大学学报》
CAS
CSCD
北大核心
2000年第3期23-26,共4页
Journal of Hebei Agricultural University
基金
河北省科委博士基金
关键词
TDR法
中子法
重量法
土壤水分
测定
TDR
neutron probe
oven dry
soil water content
comparison
