泡桐是我国平原、山区主要造林树种之一。由于泡桐生长快,材性好,适应性强,所以受到广大群众和林业工作者的重视。为了探讨泡桐速生的生理机能以及与环境的关系,我们对泡桐的光合速率,呼吸强度,光合牛产量的分配。蒸腾作用和光能利用等进行了初步的研 Paulownia is one of the main afforestation species in the plains and mountains of our country. As Paulownia grow fast, good material, adaptability, so by the masses and forestry workers attention. In order to investigate the physiological and biophysical properties of Paulownia and its relationship with environment, we analyzed the distribution of photosynthetic rate, respiration intensity and photosynthetic yield of Paulownia. Transpiration and light energy utilization conducted a preliminary study