Classification system and characteristics of evergreen broad-leaved forest in Guangxi province region

The evergreen broad-leaved forest is the most diverse and widely distribution vegetation type in Guangxi region.According to the principle of vegetation classification in vegetation of China,and with reference to the paper of Tentative classification scheme of evergreen broad-leaved forests of China by Song Yongchang,the evergreen broad-leaved forest of Guangxi was divided into 5 vegetation types,11 formation groups and 102 formations,based on the principle of that the high-rank units of classification were based on eco-physiognomy,while the median and the lower units were based on species composition,at the same time,the role of dominant species and diagnostic species was considered.Amid the 5 vegetation subtypes,the typical evergreen broad-leaved forest and seasonal evergreen broad-leaved forest were the zonal types of evergreen broad-leaved forest.The mountain evergreen broad-leaved forest and mountaintop mossy forest were the evergreen broad-leaved forest types on vertical mountain,while the evergreen broad-leaved sclerophyllous forest was the evergreen broad-leaved forest types in the special condition of limestone habitat in Guangxi.