广东内伶仃岛薇甘菊危害与生态因子的关联度分析

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Abstract

By the relatedness degree of the gray system theory,the relatedness degree between the damages caused by Mikania micrantha H.B.K.to herbaceous community,herbaceous scrub community and shrub community in Guangdong Neilingding Island and the ecological factors was analyzed.The results show that the correlated degree of damages of M.micrantha to herbaceous community and environmental factors is mainly affected by the water content of soil and conductivity.On the other hand,the correlated degree of damages of M.micrantha to herbaceous scrub community and each environmental factor is not significantly different,but it is mainly affected by water content of soil,pH of soil and transparence of communities.There is also no significant difference in the correlated degree between the damages of M.micrantha to shrub community and environmental factors,but it is mainly affected by organic matter content of soil,transparence of communities and water content of soil.The sequence of the effect of all environmental factors on the damage of different communities can be listed as water content>pH and organic matter content> transparence of communities and soil nutrients.

Key words： damage of Mikania micrantha ecological factors analysis of the relatedness degree Neilingding Island in Guangdong Province

Received: 25 June 2008

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	Articles by authors
	HUANG Dong-guang
	DENG Tai-yang
	ZHOU Xian-ye
	ZHANG Jin-biao
	ZAN Qi-jie
	WANG Yong-jun

Cite this article:

HUANG Dong-guang,DENG Tai-yang,ZHOU Xian-ye, et al. Analysis of the relationship between the damage of Mikania micrantha and ecological factors in Neilingding Island, Guangdong Province, China[J]. , 2008, 27(3): 143-147.

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http://www.ecolsci.com/EN/ OR http://www.ecolsci.com/EN/Y2008/V27/I3/143

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