关键词: 东北玉米, 冷害预测, 模型, 农业气象灾害预测

Abstract: As a case study,two prediction models of cold injury in Northeast China were introduced,including statistical prediction model of heat index for maize and mechanism prediction model based on maize growth simulation model developed recently.The differences in principle and objects of prediction,valid time of prediction as well as prediction accuracy for the two models were pointed out.The possible approaches to combine and make their priorities were discussed.Finally,some comments about development of agrometeorological disasters'prediction were presented.