摘要
根据盐城市的大、小麦产量、农技措施和气象资料,采用极限产量权重法组建大、小麦产量(y)的预报模式:y=yM-y农-y灾-y气或改写为:y=yM[1-(∑ai+∑bj+∑cn)],对盐城市大、小麦产量进行分段预报,经多年试报,结果与实产的相对误差均在5%以内。
The model of forcasting the production of wheat and barley by the weighting method of Limit production is developed based on the production of barley and wheat,agricultural technology and weather data. The model is:It is adopted to forecast the production of barley and wheat in the Yancheng area. Experimental forecasts in the past suggest that the error of the model is less than 5%.
出处
《气象》
CSCD
北大核心
1996年第5期55-57,共3页
Meteorological Monthly
关键词
极限产量
权重法
产量
小麦
大麦
limit production weighting method production of barley and wheat