吉林省龙井地区瓦松属植物种群生态特性

Ecological characteristics of Orostachys plants in Longjing City of Jilin Province

瓦松属植物有很高的药用价值,而且长白山脚下龙井地区瓦松属植物在自然条件下能忍受-30~40℃的极端温度,耐贫瘠干旱,而且形状独特,是北方干旱地区极有开发前景的药用和绿化植物。但目前对长白山区野生瓦松属资源分布及生态特性的研究欠缺,人工繁殖技术不成熟,且部分地区的野生资源受到严重破坏。为保护长白山区瓦松属野生资源及为商业化应用提供更多植物资源,本研究以龙井地区野生瓦松属植物为研究对象,利用植物社会学调查方法,探明长白山区瓦松属植物的种群生态特征。结果表明：钝叶瓦松-狼爪瓦松群落,狼爪瓦松-地椒百里香群落,地椒百里香-钝叶瓦松群落为典型瓦松属植物种群。

Orostachys plants have great medicinal value. The Orostachys plants in Longjing around Chang- bai Mountain area can bear 30~40 ℃ below zero under the natural condition. But so far, we have no more research on Orostachys plants＂ distribution and ecological characteristics in Longjing area, and the artificial propagation technology is not mature. In order to protect the Orostachys plants in this area and provide more plant resources for commercial use, this project focused on the population ecological characteristics of Orostachys plants by using phytosociology method. As the result, three Orostachys plant communities were found, they are O. malacophyllus-O, cartilaginea community, O. cartilaginea-Thymus quinque- costatus community and Th. quinquecostatus-O, malacophyllus community.