In this study using PROSPECT Model and in situ optical measurement of corn leaf

mesophyll structure parameter N of different growth phase as calculated. Based on this

given different chlorophyll and water content

corn leaf optical characteristics were modeled. It is found that in the visible region

chlorophyll dominates the optical characteristics

with the increasing of leaf chlorophyll content leaf reflectance and transmittance decrease and accordingly leaf absorptance increases while in the infrared region

water’s effect prevails

with the increasing of water content leaf reflectance and transmittance decrease and accordingly leaf absorptance increases. At the same time

given fixed chlorophyll and water content

leaf optical characteristics varying with different mesophyll structure were simulated. It is found that with the increasing of N

leaf reflectance increases and reaches an asymptote while leaf transmittance decreases and reaches an asymptote also.