JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2010, Vol. 34 ›› Issue (05): 142-148.doi: 10.3969/j.jssn.1000-2006.2010.05.031

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Discussion on alien tree species planning in the urban green space ecosystem

ZHU Wangsheng1,2, SHEN Yongbao1*, ZHANG Xiaoqin1   

  1. 1.College of Landscape Architecture, Nanjing Forestry University, Nanjing 210037, China; 2.Department of Chemistry and Life Science, West Anhui University, Luan 237012, China
  • Online:2010-10-08 Published:2010-10-08

Abstract: Alien tree species are the important parts of urban greening, but alien tree species have their own advantages and disadvantages in the urban green space ecosystem construction. Based on the analysis of alien tree species definition and connotation, the functions that alien tree species increase greening tree category, enrich landscape diversity of urban green space and improve urban ecology environment in the urban green space ecosystem construction were summarized. The potential hazards that alien tree species were likely to bring plant diseases and insect pests and tree species ecology invasion into urban green space ecosystem were discussed too. To fully exert alien tree species advantages and avoid their disadvantages in the urban green space ecosystem, in this paper, the five principles of alien tree species planning were pointed out. For example, how to follow plant introduction laws, how to evaluate tree species ecology invasion risk, how to prevent plant diseases and insect pests, how to a little introduce to plant experimentally in fixed field and attentively separate protecting during the introduction, and how to decide about the planting results?

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