摘要
本文自1984—1989年,以杉木种源林、浙江姥山和长乐杉木种子园及普通杉木林为研究对象,在实地调查和定点观测的基础上,对杉木雄球花散粉的解剖学基础和散发节律,雌雄球花及花粉以风作为花粉传播媒介的适应性变化,花粉的传播、沉降及空间分布进行了研究。提出杉木种子园宜选在水体旁,种子园的隔离照离应大于1500m,减少直至消灭自交的有效方法是选用雌性和雄性杉木无性系建造种子园,雌、雄杉木的比例为11:4。雄株应比雌株高1.5—2倍,株行距为3×2.5m、3×3m、3×4m。
This research work carried out for 6 years (1984—1989) with Chinese fir in provenance forest, seed orchards located at Laoshan and Changle in Zhejiang province, and ordinary forest. Based on investigation and determination at fixed locations in these forests, the anatomic basis and dispersal rhythm of male cone pollen, changes in adaptability of female and male cones to wind pollination, as well as sedimentation and spatial distribution of pollens have been studied in this paper. It was suggested from this study as follows: The Chinese fir seed orchard should be set up near water sources, isolation distance more that 1500m. Female and male clones should be used to decrease up to eliminate aucogamy, which in the proportion of 11:4, and male trees are 1.5-2 times taller than female, tree spacing taken as 3×2.5m, 3×3m and 3×4m.
出处
《林业科学》
EI
CAS
CSCD
北大核心
1990年第5期410-418,共9页
Scientia Silvae Sinicae
关键词
杉木
花粉
生态学特性
种子园
Chinese fir
Pollen
Dispersal
Seed orchard
