不同干扰措施对松材线虫入侵松林内物种多样性的影响

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Abstract

Through field investigations it was observed that after Bursaphelenchus xylophilus (Steiner and Buhren) Nickle (pine wood nematode) invaded a pine forest, subsequently formed forest types would be significantly different from each other if two managing ways such as human removal and reserving damaged trees were taken before a natural regeneration, namely different disturbance measures taken for damaged trees would affect regeneration direction of understory vegetation of an infected pine forest. Based on the above observation, the dynamics of plant diversity under different managements of damaged trees were studied by choosing two Masson pine communities that were subjected to managements of removal and reserving damaged trees, respectively, after the invasion of pine wood nematode. α diversity index function-Rényi index was used as a measurement. The results showed that the species diversity of shrub and herb layers of the pine forest in which damaged trees were removed timely was higher than that in which damaged trees were reserved.

Key words： Bursaphelenchus xylophilus invasion masson pine forest removal disturbance ways

Received: 25 August 2007

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	Articles by authors
	SHI Juan
	LUO You-qing
	YAN Xiao-su
	CHEN Wei-ping

Cite this article:

SHI Juan,LUO You-qing,YAN Xiao-su, et al. Effects of different disturbance ways on the diversity of pine forest invaded by pine wood nematode (Bursaphelenchus xylophilus)[J]. , 2007, 26(4): 289-292.

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http://www.ecolsci.com/EN/ OR http://www.ecolsci.com/EN/Y2007/V26/I4/289

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