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青岛近海岛屿分布的山茶是典型的亚热带区系成分，因为其耐寒性强被当地人称为“耐冬”。通过研究耐冬山茶种群的形态和基因多样性特征，以及栽培种群与野生种群之间的遗传分化和机制，对耐冬山茶种群的濒危原因和保护策略进行了分析和探讨，认为必须有效保护一定大小的野生种群及其生境，才能从根本上保持“耐冬”种群的多样性资源。
Camellia sinensis, which is distributed on Qingdao offshore islands, is a typical subtropical fauna because its resistance to cold is strongly called “winter tolerance” by locals. By studying the morphological and genetic diversity of Nostalgic Camellia populations, and the genetic differentiation and mechanism between cultivated and wild populations, the endangered causes and protective strategies of Nostalgic Camellia populations were analyzed and discussed. It is considered that we must effectively protect certain The size of the wild population and its habitat, in order to fundamentally maintain the “winter” population diversity resources.