time domain reflectometry and its applications to water-saving agriculture 时域反射仪及其在节水农业研究中的应用
Measurement of soil bulk density by time domain reflectometry combined with soil sampling 时域反射仪结合土钻法测定土壤容重
Effect of soil bulk electrical conductivity on time domain reflectometry measurement of soil water content 土壤电导率对时域反射仪测定土壤水分的影响
Standard test method for water content and density of soil in place by time domain reflectometry 时间域反射测量法现场测定土壤含水量和密度的标准试验方法
In this paper, the calibration measures of time domain reflectometry ( tdr ) and neutron probe is discussed on basis of their theories and methods of measuring soil water content, and the processes of calibration experiments are described in detail 摘要探讨了时域反射仪和中子仪测定土壤含水量的原理,并在禹城试验站对各自适宜的标定方法进行了试验。
time domain reflectometry ( tdk ) is a new measuring technique in the field of geotechnical engineering, which has attracted more and more attention for its convenient, economical, digital and remote control properties timedomainreflectometry(时域反射法,tdr)是一种新型的滑坡监测技术,具有方便,安全,经济,数字化及远程控制等优点,使滑坡监测效率得到较大的提高。
We use time domain reflectometry ( tdr ) to simultaneously estimate volumetric soil water content, soil solution electrical conductivity, and soil nitrate concentrations in combination with porous ceramic cup solution samplers to follow no3-n transport in soil exposed to different irrigation, fertilizer quota and temperature . the experiment was conducted with nondestructive soil colums 本研究中以原状土为研究对象,利用时域反射技术随时测定土壤含水量和电导率的特点结合多孔陶瓷杯抽滤技术,研究在不同灌水、施肥和温度下硝态氮的变化。