Types of Vegetation and Its Classified System in Guangxi

【Objective】Vegetation is the most sensitive factor of the local natural biogeography on the Earth,and play an important role in maintaining human being sustainable development and mitigating climate change.The objective of this paper was to introtduce systematically the types of vegetation in Guangxi and its classified system and to provide basic data for protection,research and uses of the vegetation.【Methods】Based on the classification principle,unit and system of China vegetation,the data that included both publications recording the types of Guangxi vegetations and authors' vegetation investigation in Guangxi since 1950 were gathered and sorted out.And then two classification systems were drawn up for natural and artificial vegetations of Guangxi.【Results】The natural vegetation in Guangxi could be divided into 4 classes of vegetation type,26 groups of vegetation type,and 722 formations.The artificial vegetation in Guangxi could be divided into 5 vegetation types,20 vegetation subtypes, and 298 formations.Among 722 formations of natural vegetation,the type numbers of forest,bamboo forest,shrub,herb and hydrovegetation account for 63%,4%,10%,6% and 17%,respectively.Among 298 formations of artificial vegetation,the type numbers of timber forest,economic frult and tree forest,urban forest vegetation,crop vegetation and artificial paludal and hydric vegetation account for 28%,20%,29%,17%and 6%,respectively.【Conclusion】Guangxi is one of the most rich regions of vegetation types in China with 1020 formations,and has an important position in the protection,research and uses of vegetation in China.