井冈山自然保护区油脂植物资源调查与区系分析

Investigation on oil plant resources in Jinggang mountain nature reserve

通过野外调查、标本采集与鉴定和查阅文献,对井冈山自然保护区的油脂植物资源进行了统计和分析。结果表明:井冈山自然保护区共有油脂植物71科162属286种,其中裸子植物6科10属13种,被子植物62科148属269种,单子叶植物3科4属4种,占该区种子植物科、属、种的比例分别为20.88%、16.27%、8.97%,占全国油脂植物科、属、种的比例分别为65.74%、40.81%和35.14%;含10种以上油脂植物的优势科有8个,含油量在40%以上的有71种,隶属25科36属。井冈山自然保护区油脂植物属的地理分布类型多样,起源古老,以温带成分占优势,其中以北温带分布及东亚和北美洲间断分布占比较大。

The oil plant resources in Jinggang mountain nature reserve were investigated through field investigation,sample collection,sample indentification and literature review. The results showed that 286 species,belonging to 162 genera and 71 families,were distributed in Jinggang mountain nature reserve.There were 13 species,10 genera and 6 families of gymnosperms,269 species,148 genera and 62 families of angiosperms,and 4 species,4 genera and 3 families of monocotyledon,taking a ratio of 20. 88%、16. 27% and 8.97% respectively in Jinggang mountain oil plants,and taking a ratio of 65.74%、40.81%and 35.14% in Chinese oil plants. The dominant families which had 10 or more oil plant species included8 families. The oil contents in 71 species,belonging to 36 genera,25 families,were higher than 40%.Jinggang mountain nature reserve distribution types of the oil plants were various and origin of ancient,and the temperate types were dominant,among which the north temperate zone,East Asia and North America disjunction accounted for a large rate.