Inversion of reed leaf chlorophyll content based on PROSPECT model

摘要

Wetland ecosystems have strong ability for carbon storage and fixation, and play important roles in the global carbon cycle. The accurate estimation of the leaf chlorophyll content is a significant foundation for researching wetland ecosystem cycle models. In this paper, the inversion of the leaf chlorophyll content was based on PROSPECT model from the physical mechanism angle. Leaf spectrum was simulated by PROSPECT model. And leaf chlorophyll content look-up-table was established for leaf chlorophyll content retrieval. The results indicated that the RMSE of the inversion of leaf chlorophyll content was 5.064ug/cm², the related coefficient of observed value and inverted value was 0.835, and the leaf chlorophyll content was estimated better by PROSPECT model with precision above 84%. The study provides an important basis for the acquisition of the data about a large area of leaf biochemical component content.