通过对广东鼎湖山中国珍稀树种长叶竹柏(Podocarpus fleuryi Hickel)野生和栽培种群的调查和定点监测, 探讨其生长和繁殖与环境的关系。 长叶竹柏是一耐阴树种, 特别是幼年期, 其生长与光照强度没有明显的相关关系。 湿度在一定范围内与长叶竹柏的生长呈正相关, 但当超过一定范围, 湿度便成为阻碍生长的因子。 长叶竹柏生长最适温度 21 ℃左右。 主要依靠种子繁殖, 结实量大, 种子发芽力强。
 

On the basis of widely investigation to the distribution area of Podocarpus fleuryi  Hickel and long term monitoring of its population in Dinghushan , as well as the reproduction experiments , the relation between the growth , reproduction and the environmental factors were studied .P . fleuryi is shade-tolerant , especially its seedlings. Its height growth is no significant related to light intensity. When the soil water content is >20 % and the tem perature exceeds its favorite point (21 ℃),  however , its growth will be hampered .For rich bearing and high germination rate of seeds , the nature populations mainly rely on seeds for their regeneration .