Plant Diversity ›› 2009, Vol. 31 ›› Issue (1): 57-62.DOI: 10.3724 SP.J.1143.2009.08135

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Potential Distributions of Solidago canadensis (Asteraceae) in China as Predicted by GARP

YU Yan , CHEN Li-Li , HE Xing-Jin   

  1. 1 College of Life Sciences, Sichuan University, Chengdu 610064 , China
  • Received:2008-07-07 Online:2009-02-25 Published:2009-02-25
  • Contact: HE Xing-Jin

Abstract: Solidago canadensis L . is a perennial plant of the family Asteraceae , native to North American . It is one of the most harmful alien species in mainland China . This research applied Genetic Algorithm for Rule-set Production (GARP)
ecological niche modeling to predict the species′potential range in China on the basis of occurrence points . The results indicated that: Environmental factors such as Slope, aspect, annual precipitation, wet days, flow accumulation, flow direction, maximum temperature and frost days greatly influenced the size of S . canadensis′s potential range , while parameters
such as minimum temperature and mean annual temperature had little impact . Areas that we predict to have potential for invasion were still larger than those areas that had been invaded . Therefore , S. canadensis is predicted to continue to expand in China . Northeast and south- central China was most liable to be invaded; hence urgent measures should be taken there to prevent this species from further spreading .

Key words: GARP model

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