危害林木的几种铁线莲属植物初步研究

Preliminary study on several kinds of clematis plants that harm trees

就铁线莲属Clematis植物对林木造成的危害情况进行初步研究和调查。结果表明:甘青铁线莲Clematis tangutica(Maxim.)Korsh、长花铁线莲C.rehderiana Craib和黄花铁线莲C.intricata Bunge对祁连园柏Juniperus przewalskii、青海云杉Picea crassifolia、沙棘Hippophae rhamnoides等植物的正常生长造成了一定危害和潜在影响,可造成林木长势衰弱,严重时导致林木死亡。3种铁线莲属植物在青海省天然林、人工林发生较为普遍,尤以甘青铁线莲分布最广、危害树种最多。

Preliminary research and investigation had been carried out on the damage to forests caused by plants of Clematis L.The results showed that C.tangutica、C.rehderiana and C.intricata caused damages and potential impacts on Juniperus przewalskii,Picea crassifolia and Hippophae rhamnoides.The growth and health of trees could be weakened,even killed when being severely damaged.The distribution of three species of Clematis spp.in the natural forest and plantation in Qinghai Province was very common,especially for the most widespread and damaging species C.tangutica.