植物蒸腾作用高速率之原因

摘要：植物蒸腾作用是植物最重要的生理活动之一，阐明植物蒸腾作用高速率的原因在农业方面有着重要意义。基于植物气孔结构，运用气象学、栽培学、高等数学、热学等学科相关理论，阐明了植物气孔蒸腾高速率的原因，即巨大的蒸发面积、较高的微环境温度、较大的气孔内外气压差等三因素，再此基础上，进一步阐明植物蒸腾作用高速率的原因，即叶面积指数和气孔下腔的特殊结构增大了蒸发面积、水分供应充足。气孔下腔有巨大的蒸发面积、较高的微环境温度、较大的气孔内外气压差、大的叶面积指数、充足的水分供应是植物蒸腾作用高速率的主要原因。

A primary discussion on high velocity of plant transpiration

AbstractsPlant transpiration is one of most important physiological function in plant body;it was a great importance that the reason of high velocity of plant transpiration was elucidated.to be based on the anatomic structure of the stomata of plant tissue,the reason of high velocity of plant transpiration by stomata was elucidated with the principles including in the science of meteorology,plant cultivation,mathematics,calorifics etc,viz.to be huge surface area of transpiration,higher temperature in the micro-environment,distinct difference of atmospheric pressure between the inside and the outside of stomata of plant tissue,and more,the reason of high velocity of plant transpiration was elucidated,viz.enlarging the surface area of transpiration by increasing the exponent of the leaf area and enlarging the surface area of transpiration,supplying sufficiently with water.The primary reasons of the high velocity of plant transpiration were the following：huge surface area of transpiration,higher temperature in the micro-environment,distinct difference of atmospheric pressure between the inside and outside of stomata of plant tissue,great exponent of the leaf area and sufficient supply with water.Finally,the interrelation and its correlative factors of plant transpiration were given in the form of diagrammatic way.