两种土壤墒情预报模型在沧州地区的应用及评价  

Application and evaluation of two soil moisture forecast models in Cangzhou area

作　　者：韩红亮[1] 王雪梅[1] Han Hongliang;Wang Xuemei(Yangling Vocational and Technical College,Yangling,Shaanxi 712100)

机构地区：[1]杨凌职业技术学院,陕西杨凌712100

出　　处：《吉林水利》2022年第5期47-51,共5页Jilin Water Resources

基　　金：杨凌职业技术学院自然基金项目(编号:A2019003);杨凌职业技术学院自然基金项目(ZK20-04)。

摘　　要：土壤墒情预报是实现农业节水的有效途径,当前ET0指数模型法和消退指数法是比较成熟的两种墒情预报方法。此次研究分别使用这2种方法,对中科院南皮试验站6个棉花小畦,2018年6月8日和6月16日的土壤墒情进行了预测,并进行比较。结果表明:两种预测方法都能够较准确的预测沧州地区的土壤墒情;但对6月16日各畦墒情预测结果,指数模型法的误差大于消退指数法的误差,且差异性显著。因此,在沧州地区,消退指数法比指数模型法更具有优越性。Soil moisture forecast is an effective way to save water in agriculture.At present,ET0 index model method and regression index method are two more mature soil moisture forecasting methods.By using these two methods,the soil moisture of 6 cotton beds in Nanpi Experimental Station of Chinese Academy of Sciences,June 8th and June 16th of 2018 were predicted and compared.The results show that the two prediction methods can accurately predict the soil moisture in Cangzhou area,but for the prediction results of soil moisture in each border on June 16,the error of the exponential model method is larger than that of the regression index method,and the difference is significant.Therefore,in Cangzhou area,the regression index method has more advantages than the index model method.

关 键 词：墒情预报 指数模型 消退指数法 沧州地区 

分 类 号：S271[农业科学—农业水土工程]