<正>通过分析江西崇义钟花樱（Cerasuscerasoidesvar。campannlata）种群的年龄结构、编制静态生命表和绘制存活曲线，得出钟花樱种群的年龄结构主要分布在第Ⅲ和第Ⅳ立木级，个体数量比重占65.1%，这对维持其种群优势有重要意义。幼老年种群株数严重偏少，种群整体呈衰退状态。钟花樱种群数量的存活曲线呈偏正态分布。表明钟花樱幼苗死亡率高，其生境或种子存活率受到限制。因此，建议适度干扰或开辟林窗以利于钟花樱的自然繁衍。并着力对钟花樱种子进行人工采集及繁育试验。

Based on the analyses of original taper functions, the improved Sohumacher equation with four parameters has been established as the taper equation of poplar in Jiangsu. Then, the outturn table for poplar in Jiangsu has been constructed. By experiment on the poplar stand of different siteindex, it shows that the equation fits the growth of poplar merchantable volume well, which can be used to estimate the yield of poplar stand in Jiangsu. The theory and method introduced in this paper have higher efficiency and also offers the good basic to construct yield tables of poplar stand. It has an important sense to enhance scientific management level and ensure estimating precision of yield prediction in poplar planning.