Based on sample plot survey of Taxus chinensis var.mairei in Manghe Nature Reserve,the niche characteristics were studied by the methods of quantitative analysis.The results showed that:Taxus chinensis var.mairei had high important values,larger Levins and Shannon-Wiener niche breadth values in community.It had higher environmental adaptability and could make full use of resources,which resulted in its dominant position on the resource states.There was no intensive competition between Taxus chinensis var.ma...