关于土壤墒情自动监测精度的探讨  

A Tentative Discussion on Precision of Automatic Soil Moisture Monitoring

作　　者：王光生[1] 杨建青[1] 邓英春[2] 

机构地区：[1]水利部水文局,北京100053 [2]安徽省水文局,安徽合肥230022

出　　处：《水文》2013年第5期7-9,38,共4页Journal of China Hydrology

摘　　要：简要介绍了时域反射和频域反射土壤水分监测仪器的工作原理,利用在安徽六安望城岗蒸发实验站土壤墒情仪器自动监测和人工对比观测的数据,分析了土壤墒情仪器自动监测数据的精度;探索了通过对比观测数据修正仪器的土壤水分计算公式参数,提高土壤墒情仪器自动监测精度的方法。This paper discussed the principle of soil moisture monitoring by Frequency Domain Reflectometry （TDR） and Frequency Domain Reflectometry （FDR）.Based on the experimental data from automatic monitoring sensors at the Wangchengang Evaporation Experimental Station in Liuan City of Anhui Province,this paper analyzed the precision of automatic monitoring sensors in comparison with the manual sampling data by gravimetric method.A mean of calibrating soil water content calculation equation was further developed using the manual sampling data of gravimetric method.The improved precision of automatic monitoring data was thus obtained.

关 键 词：土壤墒情 自动监测 数据精度 

分 类 号：S152.71[农业科学—土壤学]