与这些过程相联系的是CO2从大气进入叶内的扩散阻力增大。
Connected to these processes is an increase of the diffusion resistance for CO2 from the atmosphere into the leaf.
在四种作物的抽穗期同时测定其气孔扩散阻力、蒸腾速率与叶水势日变化。
The resistance of stomatic diffusion, evapotranspiration rate and daily progress of water potential in leaves of the four kinds of crops were determined at the same time in their heading stages.
原因主要是随着电解质离子半径的增大，在模板炭孔隙中的扩散阻力增加。
The reason could be interpreted as smaller ions diffused more easily in the micropores.
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