Successful forest resources monitoring requires an effective method to collect information related to forest area and tree crown.

Gaussian filter was applied to the image to improve the tree crown information and control image noise.

Owing to their unique advantages such as large-scale observations, richness ininformation and repeatability, high spatial resolution remote sensing images provide an idealmeans to study forest tree crowns.

Progress in research on diversity of canopy arthropods;

Influences of photosynthetic characters and light distribution on photosynthetic rate in the canopy of Navel orange leaves;

δ~(13)C and δ~(15)N of moss (Haplocladium microphyllum (Hedw.) Broth) for indicating habitats difference and canopy retention on atmospheric nitrogen deposition;

Study on the relationship between stem height and crown growth of paulownia trees;

Experiment Study on Identifying Crown Injected Metal Ion Solution Using Neural Network;

)tree form and its crown pruning and culture were conducted in the experiment to speed up the development of pomegranate production.

An estimation of tree canopy biomass based on 3D laser scanning imaging system.;

A theoretical study is first made of the prediction of radiation of typical crown fire,utilizing the cylindrical geometry model.

To determine the lowest pruning heights of Pinus armandii trees which could prevent forest crown fire conversion from surface fire,combustion experiments of fine fuel were tested by 5 times with experimental equipment designed by the authors and ignition temperature were measured.

Surface fire,ground fire and crown fire are the main three forest fire behaviors.