Abstract：To probe into the primary and secondary relation of factors influencing canopy interception, based on the grey system theory, a grey correlation analysis on factors influencing canopy interception was made, using the data measured in different forestlands of Jinyun mountain, Chongqing. The results showed that the priority of canopy interception capability of different vegetation types was mixed broadleaf-conifer forest>broad-leaved forest>Phyllostachys pubescens forest. For Phyllostachys pubescens forest, the influencing priority of analyzed factors was rainfall intensity>precipatation>temperature>wind velocity>air humidity. For mixed broadleaf-conifer forest, the priority was precipatation >temperature>wind velocity>air humidity> rainfall intensity. For broad-leaved forest, the priority was rainfall intensity> precipatation >temperature=wind velocity>air humidity. The canopy interceptions of Phyllostachys pubescens forest, mixed broadleaf-conifer forest and broad-leaved forest were mainly influenced by the process of rainfall. The process of evapotranspiration was important to the canopy interception of mixed broadleaf-conifer forest.
2005, Vol. 3 
