DZN1型自动站与人工测定土壤湿度对比分析

为了评价DZN1型土壤水分监测站的监测能力、服务效益和推广使用提供参考依据，对齐河县2011年2月28日—12月13日期间自动土壤水分观测站与人工平行对比观测的土壤相对湿度资料，进行差值对比和概率相关性分析。结果表明，人工观测的数据与自动站取得的数据随时间的变化趋势基本一致，10 cm和40 cm土层人工观测的数据接近于自动站数据，40 cm土层人工与自动观测土壤相对湿度的平均差值在8个层次中为最小，60 cm层次的平均差值为最大。人工与自动站观测数据的相关性在各层均表现显著，给出存在数据偏差的原因及以后仪器运行应注意的问题，认为DZN1型自动站观测的资料基本能代替人工观测的资料。

Comparative Analysis of Soil Moisture Measured by DZN1 Automatic Station and Manual Work

In order to evaluate the monitoring ability of the DZN1 soil moisture and analyze its service benefits, providing a reference basis for the wide use of the DZN1, the author made a difference contrast and probability the correlation analysis according to the automatic soil moisture observation station and artificial parallel contrast observation of soil relative humidity data on February 28, 2011 to December 13 in Qihe County. The results showed that artificial observation data and the data obtained by the automatic stations were basically the same trend over time, 10 cm and 40 cm soil layer artificial observation data was closed to the automatic station data, manual and automatic observation of 40 cm soil layer of soil relative humidity average difference in the 8 levels for the minimum, 60 cm average difference level to the maximum. The correlation of the data from the manual and automatic observation stations made an excellent performance in all aspects. It gave people the reasons for deviations and instrument problems in running which should be paid more attention to. Summing up the above, it believed that the DZN1 automatic observation station data could replace the artificial observation data.