子午岭地区草本药用植物种间联结性研究

Interspecific Association of Medicinal Herbs in Ziwuling Region

该研究以子午岭地区桥山林区最常见的几种药用植物为研究对象,通过种间联结系数(AC)、Ochai指数(OI)、Jaccard指数(JI),结合Pearson系数和以及χ2统计量对研究区内的药用草本植物两两之间及药用草本植物与本区常见优势木本植物间的种间联结性进行分析,以了解子午岭地区野生药用植物资源的分布。结果显示:(1)药用草本物种间白头翁与苦参、黄精与沙参显示出极显著的正联结关系,而穿龙薯蓣与刺儿菜、翻白草、祁州漏芦、茵陈蒿、远志,刺儿菜与玉竹,翻白草与黄精,黄精与茵陈蒿则表现出极显著的负联结关系。(2)木本植物与药用草本植物的关系因物种不同而异,其中刺槐与刺儿菜、辽东栎与穿龙薯蓣、辽东栎与玉竹、辽东栎与黄精、白桦与穿龙薯蓣均具有极显著的正联结关系;而刺槐与穿龙薯蓣、玉竹,辽东栎与刺儿菜、翻白草、茵陈蒿、苦参,槲栎与龙牙草、茵陈蒿,白桦与天南星、茵陈蒿,油松与益母草,野胡桃与黄精均具有极显著的负联结关系。(3)基于物种关联性的不同,将药用草本植物划分为3个生态种组。研究认为,种间联结性的研究结果可以反映物种的生理生态特性,对该区药用经济植物的资源开发与利用具有一定参考价值。

Based on the association coefficient（AC）, Ochai index（OI）,Jaccard index（JI）,Pearson index and χ2-test to analyze the interspecific associations of medicinal herbs, and the interspecific associations between medicinal herbs and common trees in Qiaoshan forest region, Ziwuling Mountains. The results indicated that： （1）the significant positive interspecific associations were showed between Pulsatilla chinensis and Sophora flavescens, Polygonatum sibiricum and Adenophora stricta. On the other hand, negative associa- tions were found between Dioscorea nipponica and Cirsium setosum ,Potentilla discolor ,Rhaponticum uni- florum ,Artemisia capillaris , Polygala tenui folia , as well as between P. sibiricum and P. discolor, A. capillaris each other. （2） Robinia pseudoacacia and C. setosum, Quercus wutaishanica and Polygonatum odoratum and P. sibiricum,Betula platyphylla and D. nipponica showed significant positive associations, while Robinia pseudoacacia and D. nipponica and Pol ygonatum odoratum, Quercus wutaishanica and C. setosum and P. discolor and A. capillaris and S. flavescens, Quercus aliena and Agrimonia pilosa and A.ca pillaris , Betula platy ph ylla and Arisaema erubescens and A. ca pillaris , P inus tabulae f ormis and Leonu- rus artemisia ,Juglans cathayensis and P. sibiricum showed significant negative associations. （3）Based on the results of interspecific associations,three ecological species groups of medicinal herbs in this area were delineated. The result may reflect the pattern of ecological and physiological of species and also provides a basis on resource development and utilization of the medicinal plants in this region.