摘要
以黑龙江省主要栽培作物玉米、大豆和小麦为研究对象,根据作物生长速度曲线,求出光能利用系数的时间动态过程。提出用生长季>10℃(小麦用>5℃)积温的分布,计算光合生产潜力,并对其进行温度条件和水分条件的订正,给出了计算地区气候生产潜力的模式。
The major crops in Heilongjiang province, corn, soybean and wheat were studied and the dynamic process of the light energy utilization coefficient was calculated based on the curve of crop growth rate. The photosynthetic production potential was calculated using the accumulated temperature>10℃ distribution (for wheat, the accumulated temperature>5℃ was used) during the growth duration of crops. Furthermore, corrections of temperature and water conditions were made for the calculated photosynthetic production potential. Finally, a model of climatic production potential was put forward in order to calculate the climatic production potential in given areas.
关键词
玉米
大豆
小麦
气候
生产潜力
photosynthctic production potential
dry malter accumulation
climatiic production potential
natural growth curve
light energy utilization coefficient
