广州市石门国家森林公园彩叶林树种组成及色相变化

[Objective]To investigate composition of the species and colour phase changes of colorful forests in Guangzhou,and to continuously observe the seasonal changes of different colourful forests to provide a theoretical basis for the establishment of colour forests.[Method]In this paper,unmanned aerial vehicle(UAV)is used to track and shoot 5 colorful landscape forests in Shimen National Forest Park,and the image color is quantified.The qualitative and quantitative methods are used to study the status quo and changing characteristics of color attributes.[Result]The results show that there are 51 species of trees in 24 families and 35 genera in the Shimeng National Forest Park,mainly trees of the Camphoraceae,Euphorbiaceae,Lacertidae and Rosaceae families;the trees are classified as red-leaved trees,yellow-leaved trees,evergreen trees and white-leaved trees;the trees are classified as evergreen trees,spring-leaved trees,autumn-leaved trees,new-leaved trees and double-leaved trees by the period of leaf colour presentation.The colors of the colorful landscape forests in the Shimeng National Forest Park change distinctly in different seasons,and the color saturation and brightness fall in the middle range.Spring and summer are green leaf periods in which green is the dominating color,while autumn and winter are the color leaf periods.The best viewing period of colorful landscape forest is in the late of December and will last about 30 days.Tourists should travel to view the landscape with rich leaf colors and evident color layers.[Conclusion]This study would provide reference for colorful landscape forest configuration.