乌冈栎种群天然更新研究

林业资源管理 ›› 2011›› Issue (1): 55-61.

乌冈栎种群天然更新研究

谢春平^1,2, 方彦¹, 方炎明²

1.南京森林警察学院侦查系,南京 210046;
2.南京林业大学森林资源与环境学院,南京 210037

收稿日期:2010-12-13 修回日期:2011-12-28 出版日期:2011-02-28 发布日期:2020-12-16
通讯作者: 方炎明(1962-),男,教授,博士生导师。Email:jwu4@njfu.edu.cn
作者简介:谢春平(1980-),男,海南儋州人,讲师,博士,主要从事植物生态学等研究。Email:xcp80@yahoo.com.cn
基金资助:
林业公益性行业科研专项(201004094)

Study on the Natural Regeneration of Quercus phillyraeoides Population in Different Communities

XIE Chunping^1,2, FANG Yan¹, FANG Yanming²

1. Investigation Department of Nanjing Forest Police College,Nanjing 210046,China;
2. College of Forest Resources and Environment,Nanjing Forestry University,Nanjing 210037,China

Received:2010-12-13 Revised:2011-12-28 Online:2011-02-28 Published:2020-12-16

摘要/Abstract

摘要： 种群更新对维持种群的稳定和发展具有极其重要的意义。通过野外实地调查,对不同地区乌冈栎种群的更新情况进行了分析,结果如下:1)大多数地区乌冈栎种群的幼苗结构呈倒金字塔型,说明乌冈栎种群的更新存在一定的困难;但在乌冈栎顶级群落中,由于仍存在一定数量的幼树,短期内的更新仍能继续进行;2)从乌冈栎幼苗空间分布格局来看,林窗或林缘处呈聚集分布,而林冠下呈均匀分布,这与乌冈栎幼苗生长的需光性有极大的关系;3)乌冈栎的萌发实验表明,1～2个月的沙藏处理有利于提高萌发率,而萌发过程中鼠害和虫蛀是限制出苗率的主要原因之一;4)乌冈栎种子的传播除靠重力外,啮齿类动物对它的影响最大,他们之间存在一定的权衡关系。为了提高乌冈栎种群的天然更新率,适当干扰地开辟林窗是较佳的途径。

关键词: 乌冈栎, 种群, 更新, 幼苗

Abstract: It is very important for regeneration of a population to maintain its stability and development.Based on the field investigation,the regeneration of Quercus phillyraeoides population in different places was discussed.The results are showed as fo11ows:(1)The pattern of population in most areas was shown with an inverted pyramid form,which means that there were difficulties for the population to regenerate;but in the climax community of Quercus phillyraeoides,the population regeneration could continue because of the number of young trees in a short period of time;(2)The spatial pattern of Quercus phillyraeoides seedling indicated that it was of an aggregated distribution in the canopy gaps or forest edge while even distribution existed under the crown of a tree,which means that there was a close relation to seedling growth and light.(3)The experiment of seed germination revealed that it was good for the seed to germinate through the way of sand storage for 1-2 months,and the rodent damage and moth attack was the key reason to restrict the rate of germination.(4)The seed dispersal of Quercus phillyraeoides was not only the gravity but also the rodent,and the latter had more influence on it in the forest communities.There was a trade-off relationship between the rodent and seed dispersal.To improve the natural regeneration of Quercus phillyraeoides,it was an effective measure to keep the canopy gaps in its forest.

Key words: Quercus phillyraeoides, population, regeneration, seedling

中图分类号:

Q948
S718.55

谢春平, 方彦, 方炎明. 乌冈栎种群天然更新研究[J]. 林业资源管理, 2011,(1): 55-61.

XIE Chunping, FANG Yan, FANG Yanming. Study on the Natural Regeneration of Quercus phillyraeoides Population in Different Communities[J]. FOREST RESOURCES WANAGEMENT, 2011,(1): 55-61.

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