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对15年金丰、宋家早、粘底板、青毛软刺等板栗品种密植丰产园太阳辐射分布规律、生长发育特性及光合特征进行了研究,结果表明,在栗园冠层内,太阳辐射强度自上而下急剧减弱,各类枝条的分布及数量、叶片及栗棚的分布均受太阳辐射分布规律的影响而呈现一定的规律性。在气温适宜时光合速率较高,且有较高的光饱和点;当气温较高时,光合作用受抑,光饱和点也随之下降。板栗的光合日周期呈—双峰曲线。
The solar radiation distribution, growth and development characteristics and photosynthetic characteristics of 15 years of Jinfeng, Songjia early, sticky floor, green hairy soft chestnut and other planting areas were studied. The results showed that in the chestnut canopy, the solar radiation intensity was The distribution and quantity of all kinds of branches, the distribution of leaves and chestnut shed are affected by the distribution of solar radiation and show a certain regularity. When the temperature is suitable, the photosynthesis rate is high, and there is a higher light saturation point. When the temperature is higher, photosynthesis is depressed and the light saturation point also decreases. Chestnut photosynthesis day cycle was - bimodal curve.