深圳市国家重点保护野生植物的区系特点与分布状况

The Floristic Characteristics and Distribution of National Key Protected Wild Plants in Shenzhen

通过多年来的野外调查和资料收集,发现深圳分布有国家重点保护野生植物共15种,隶属12科13属.分析了这些植物的区系特点、分布状况及濒危原因,并针对实际情况提出了保护对策.

A total of 15 species of national key protected plants were found in Shenzhen, which fell into 13 genera, 12 families. Of these species, 5 were ferns, 2 were gymnosperms and 8 were angiosperms. This paper discussed their floristic characteristics, distribution pattern, endangering mechanisms and conservation strategy. These plants originated from 7 types of distribution area, with 12 genera from tropical region and one from temperate zone .Most of the species were of ancient origin, some were Mesozoic relicts and 5 were endemic species of China. Their habitats included mountain, valley, beach and swampland. Most of the species were rare ,only growing at one or several localities and forming very small populations. some species had just one or several plants. Human activities such as deforestation and commercial overexploitation were the main factor leading to plant endangering and extinction.