山西农业大学学报（自然科学版）2019，Vol.39Issue(5)：32-40,9.DOI:10.13842／j.cnki.issn1671-8151.201901028
松材线虫病疫情指数与气候因素之间的关系
The relationship between pine wilt disease occurrence and climatic variation
摘要
Abstract
[Objective] T he main purpose was to explore the relationship between weather variation and pine wilt disease (PWD) development in Yiling district ,Hubei Province .[M ethods] T he research focused on the infected M asson pine forest ecosystem in Yiling district .T he correlation analysis ,principal component analysis and redundancy analysis were conducted to reveal the effects of weather conditions on the pine wilt disease development from 2006 to 2013 .[Results] (1) T he weather conditions from 2004 to 2006 ,two years prior to PWD occurred ,showed a higher temperature ,lower precipitation ,and lower relative humidity than the average historic data .(2) During the severe PWD damage year ,the study area experienced higher temperature and lower relative humidity , while it was higher relative humidity and strong precipitation during the slight PWD damage years .(3) T he RDA results indicated that the higher monthly rela-tive humidity was ,the wider the pine wilt disease was spread among M asson pine forest ecosystem .T he higher the monthly mean wind speed was ,the faster the pine sawyer beetle was spread .With the increase of the highest average temperature ,the mean temperature ,and the hours of sunshine ,the number of pine wilt disease damaged M asson pine stems and damaged areas were increased ;on the contrary ,the number of dead trees and damaged areas were decrease . [Conclusion] T he study indicated that the number of PWD damaged sites and the number of PWD damaged M asson pine stems were the major indicators for the intensity of PWD epidemic degrees in Yiling district .T he main climatic factors that closely related to the outbreak of pine wilt disease included monthly mean temperature ,the monthly high-est temperature ,monthly mean relative humidity ,and yearly precipitation .T he results will provide a key scientific the-oretical basis for the monitoring ,early warning and management of the PSB and PWN .关键词
外来入侵物种/松材线虫病/气候变化/危害程度Key words
Invasive alien species/Pine wilt disease/Climate change/Damaged extent分类
农业科技引用本文复制引用
Gao Ruihe,Ji Weirong,Li Hong,Shi Juan..松材线虫病疫情指数与气候因素之间的关系[J].山西农业大学学报（自然科学版）,2019,39(5):32-40,9.基金项目
山西省优秀博士来晋奖励项目(K271799024 ) （K271799024 ）
山西农业大学科技创新基金项目(2017YJ20 ) （2017YJ20 ）
林业公益性行业科技专项(201504304) （201504304）
