广东林业重要外来有害生物松材线虫入侵的历史考察 A Study of Historical Investigation on the Main Alien Forest Invasive Species Bursaphelenchus xylophilus in Guangdong

松材线虫是广东地区重要的林业外来入侵生物，对本土松林种类及林业生态系统的功能稳定性造成严重威胁。广东地区松材线虫的入侵可分为三个历史阶段：入侵初期与局部发生时期、蔓延与危害时期及危害扩大与综合防治时期。松材线虫在广东快速扩散蔓延主要通过人为和自然两种传播途径。 Bursaphelenchus xylophilus is one of the major agricultural and forest invasive species in Guang-dong, which has caused severe damage towards stability of domestic species and ecology system. The invasion of the Bursaphelenchus xylophilus can be divided into three phases: initial invasion and partial occurrence, invasion spreading and damage appearance, damage enlarging and com-prehensive treatment. The rapid spreading of the Bursaphelenchus xylophilus in Guangdong is mainly through two approaches including human behavior and natural dissemination.