Effect of pine wood nematode invasion on pine community functions in the Pinghu region, Zhejiang Province, eastern ChinaEffect of pine wood nematode invasion on pine community functions in the Pinghu region, Zhejiang Province, eastern ChinaEffect of pine w

• Published in: 中国林学：英文版 no. 4; pp. 302 - 309
• Main Author: Zhuang WANG Yan ZHANG Juan SHI You-Qing LUO Li-Li REN Yu-Ming SHI
• Format: Journal Article
• Language: English
• Published: 2013
• Subjects: 植物群落功能rnassoniana; 油松; 生物入侵; 群落演替; 黑松
• ISSN: 1008-1321; 1993-0372

In order to investigate the effect of invastion by pine wood nematode （PWN）, this study analyzed severalfunctional indices, i.e., the increment in DBH and stand volume and biomass, in the damaqed stands with various mixedpercentages of Pinus massoniana and P. thunbergii and with different levels of damage. According to the results of rate of change in increment of DBH and stand volume, the forest ecosystem resistance against PWN increased with a reduct on n the m xed ratio of pine. The resistance was highest with a mixed percentage of 50%. The invasion of PWN hanged the corresponding relationship of increment between DBH and stand volume （pure stands 〉 7：3 conifer and roadleaf 〉 6：4 conifer and broadleaf 〉 5：5 conifer and broadleaf） among the P. thunbergii stands when there is no amage, but for P. massoniana stands this phenomenon did not occur. For the increment rate of DBH and stand volume, is significant change in P, thunbergii forest indicates that the resistance of pure P. thunbergii forest was higher than at of P. massoniana. The invasion of PWN accelerates the succession from pure stands to mixed stands and then tohe broadleaf evergreen stands.