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农学学报

农学学报 ›› 2014, Vol. 4 ›› Issue (4): 69-74.

• 农业工程 农业机械 生物技术 食品科学 • 上一篇    下一篇

GStarDZN2型自动站与人工测定土壤湿度对比分析

张弢 王润元 丁文魁 李光明 毛竹馨   

  • 收稿日期:2013-08-07 修回日期:2013-09-09 出版日期:2014-04-20 发布日期:2014-04-20

Comparative Analysis on Soil Moisture Measured by GStarDZN2 Automatic Stations and Artificial

  • Received:2013-08-07 Revised:2013-09-09 Online:2014-04-20 Published:2014-04-20

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摘要： 为了评价GStarDZN2型自动土壤水站的准确性与代表性，为替代人工测定土壤湿度并推广使用提供参考依据，采用对比差值、差值概率和相关分析等方法，对永昌县2012年5月3日—10月28日期间GStarDZN2型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统计分析。结果表明，自动站取得的数据与人工观测的数据随时间的变化趋势基本一致，20~30 cm土层差值概率分布范围最小，数据一致性最好，30~40 cm、10~20 cm次之，在70~80 cm和90~100 cm 2个土层次表现较差。对比观测时段内自动与人工站观测数据的相关性在各层均表现显著，认为GStarDZN2型自动站观测的资料可以代替人工观测的资料。

关键词: 两系杂交稻, 两系杂交稻, 制种, 气候适应性, 区划

Abstract: In order to evaluate the accuracy and representativeness of GStarDZN2 automatic soil water station, provide a reference for alternative artificial soil moisture and promote the use of it. With contrasting difference, the difference probability and correlation analysis methods, the author statistically analyzed the GStarDZN2 automatic soil moisture stations and the parallel artificial soil relative humidity contrast observation datum of Yongchang County on May 3, 2012 to October 28 periods. The results showed that, the trend of automatic station data and manual observation over time was consistent. 20-30 cm soil layer probability difference was minimum distribution, data consistency was the best, 30-40 cm, 10-20 cm, followed by it. The 70-80 cm and 90-100 cm soil layers were poorer performance. Contrasting the correlation of automatic datum and manual observed datum in each layer showed significant. As a result, GStarDZN2 automatic observation station data could replace manual observation data.