四种新型土壤墒情传感器的对比分析  

Comparative Analysis of 4 Types of Soil Moisture Sensors

作　　者：苏志诚[1] 张立祯[2] 丁留谦[1] 张文婷[3] 韩硕[2] 王旗[2] 

机构地区：[1]中国水利水电科学研究院,北京100038 [2]中国农业大学资源与环境学院,北京100193 [3]北京市交通委员会路政局通州公路分局,北京101100

出　　处：《水文》2014年第4期55-60,共6页Journal of China Hydrology

基　　金：水利部"948"项目:奥地利iMETOSR墒情监测及决策支持系统(201201)

摘　　要：土壤墒情监测工作日益得到重视。在北京上庄试验站选择四种不同工作原理和型号的土壤墒情传感器进行了为期半年的对比分析测试,利用监测数据对土壤墒情传感器的稳定性、灵敏性、准确率三个指标进行了分析,结果表明各类传感器在监测效果方面表现各有优缺点,均表现出了较好的稳定性,对降水反应也良好,准确率略有差别,监测数据基本在烘干法值附近上下波动。通过对比分析研究,对了解土壤墒情传感器性能和大范围推广应用具有一定的参考意义。In this study, 4 different types of soil moisture sensors with different operating principles were employed to conduct a half-year com- parative analysis at Shangzhuang Experimental Station in Beijing. Based on the monitored data, analysis of soil moisture sensor＇s stability, sensitivity and accuracy were carried out. The results show that each type of the sensor exhibits its own advantages and disadvantages. In gen- eral, all types of the sensors exhibits good stability and good reaction to precipitation. The accuracy of the 4 types of sensors show little differ- ence, by fluctuating around the value of oven drying method. This comparative analysis will provide a reference to understand the performance of different soil moisture sensors, and then promote their wide application.

关 键 词：土壤墒情 传感器 对比分析 

分 类 号：S271[农业科学—农业水土工程]