CO_(2)-作物生长模拟实验及光合模型

SIMULANTION TEST OF CO_(2)—CROP GROWTH AND PHTOSYNTHETIC MODEL

利用一套 CO2 浓度调控装置及微环境测量系统 ,研究了小麦、玉米、大豆、大白菜在 350× 1 0 -6 、50 0× 1 0 -6 、60 0× 1 0 -6 和 70 0× 1 0 -6 CO2 浓度下光合速率的动态变化 ,建立了 CO2 光合速率模型 .小麦、玉米、大豆、大白菜的模拟精度分别达到± 2 .4%、± 2 .2 %、± 4.4%和±2 .2 % .

Using a control installation of CO 2 concentration and micro—enviromental mesuring system,the dynamic changes of photosynthetic rate in different CO 2 concentration (350×10 -6 、500×10 -6 、600×10 -6 、700×10 -6 )for wheat ,maize, soybean and chinese cabbage crops have been studied. And the CO 2—photostynthetic rate models have been devetoped.The simulant accuracy of wheat, maize,soybean and Chinese cabbage are ±2.4%、±2.2%、±4.4% and±2.2%.