Quantitative Models of Invasion by Alien Plants
The invasion of alien plants in new ecosystems can cause significant economic and environmental impacts. The invasion process can be commonly described into three stages:entry, establishment, and spread. Scientists are paying more attention to the quantitative analysis of the invasion for each stage. Such analysis requires both ecologically-based conceptual understanding of alien plants and appropriate modeling tools. With the improvement of new powerful statistical techniques and GIS tools, a lot of models have been developed to quantitatively analyze the invasion. In this paper, we have proposed a simple conceptual model to give a predictive understanding of the invasion. We reviewed recent development of quantitative tools of invasion for alien plants and discussed the assumptions, predictive potential, knowledge and data requirements of these modeling tools to select the most appropriate one. The qualification of a model depends primarily on the goals of the study and the usability of the model,rather than on statistics alone. It is required to achieve more reliable invasive analysis of alien plants based on quantitative models.
Invasion Alien plant Quantitative model Migration model Spread model Establishment model GIS Model evaluation Model applicability
Wen L N Ni H W Gao L W Li W M Ma X G
College of Agronomy and Biotechnology, China Agricultural University, Beijing 100094, China Chinese Academy of Inspection and Quarantine, Beijing 100025, China
国际会议
北京
英文
258-277
2006-10-14（万方平台首次上网日期，不代表论文的发表时间）