气候变化对水稻光合产量影响探索

INFLUENCE OF CLIMATIC CHANGE ON RICE PHOTOSYNTHETIC YIELD

采用水稻生长模拟模型计算了未来气候变化对长江三角洲地区水稻产量的影响，在计算中同时考虑了CO2浓度升高和紫外辐射增强对水稻生长发育及产量的影响，并对此进行了原因分析。计算结果表明：未来CO2增加有助于提高水稻产量，降水发生变化对水稻有利有弊，而气温升高、紫外辐射增强则降低水稻的产量，总的来说，是害大于利。

The impact was calculated of climatic change on rice yield in the Yangtze Delta interms of rice growth simulation model,adding to influence of CO, concentration rise andultraviolet enhancement. The results show that the rice yield will be reduced under futureclimatic change, though the rice photosynthetic yield will go up with increase of CO, buttemperature incease and UV enhancement will decrease the rice yield.