辽宁海城市高粱生产气候资源评价

[目的]研究作物气候,评价气候资源储量,定量分析高粱气候条件,为开发利用气候资源提供依据。[方法]从农业气候统计学角度,应用逐步回归、最小二乘法、滑动平均法、相关系数、偏回归系数方法,确定高粱气候关键期和影响高粱产量的气候关键因子。[结果]高粱开花期与温度相关显著,平均最高气温在≥28℃以上是丰收年;8月份降水量与产量呈负相关显著,降水多而减产。海城地区光、热、水资源丰富,基本满足高粱生产的需要,热量盈余400-900℃,降水盈余105 mm,由于降水量时空分配不均,有1/3的年份出现旱涝。[结论]影响高粱气候产量的主要因子是8月份的降水量和积温。

Climate Resource Assessment of Sorghum Production in Haining City,Liaoning Province

[Objective] To study crop weather,evaluate the climate resources reserves and conduct quantitative analysis of sorghum climatic conditions to provide basis for the development and utilization of climate resources.[Method] From the agro-climatic statistics point of view,using the application of stepwise regression,least squares,the moving average method,the correlation coefficient,partial regression coefficient method to determine the critical period of climate sorghum and climate key factor influencing sorg...