Structure Characteristics of Manglietia pachyphylla Community in Nankunshan Nature Reserve, Guangdong Province

Abstract:

The aim was to understand structure characteristics of Manglietia pachyphylla community at Nankunshan Nature Reserve, Guangdong Province, the species composition, flora components, vertical structure and age structure of the community were studied by field investigation method. The results showed that there are 239 species vascular plants, belonging to 72 families and 136 genera in plots with area of 2000 m², which dominated by Tropical element type. Among these, Lauraceae, Theaceae, Fagaceae, Aquifoliaceae, and Bubiaceae were dominant, and the dominant species of the community was Schizostachyum dumetorum, with an important value of 81.09%. The mesophanerophytes and microphanerophytes species accounted for 79.23% in life form spectrum of the community. This community belongs to Subtropical evergreen broad-leave forest, and can be vertically divided into three layers, including tree layer, shrub layer, and herb layer, and interlayer species were rich. Analysis on age structure indicated that Manglietia pachyphylla populations expressed a decline tendency. Therefore, Manglietia pachyphylla is an endangered species which must be protected by in situ conservation, and the conservation strategies should also put attention on ex situ conservation, and popularization and application in landscape greening.

Key words:Nankunshan Nature Reserve;Manglietia pachyphylla;Endangered species;Community characteristics;Conservation strategy