| 封育柞蚕场蒙古栎林不同恢复阶段种群结构与群落多样性研究 |
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| 引用本文： | 金刚,尤文忠,赵刚,侯庚.封育柞蚕场蒙古栎林不同恢复阶段种群结构与群落多样性研究[J].辽宁林业科技,2010(2):6-10,17. |
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| 作者姓名： | 金刚 尤文忠 赵刚 侯庚 |
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| 作者单位： | 1. 辽宁省林业科学研究院,辽宁,沈阳,110032
2. 辽宁省杨树研究所,辽宁,盖州,115200 |
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| 基金项目： | 国家林业公益性行业科研专项资助项目(200804006/rhh-03);;辽宁省森林生态重点实验室专项计划项目(2006-2010) |
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| 摘 要： | 采用空间代替时间的方法,以柞蚕场蒙古栎在平茬后经不同时间(9年、12年、57年)封育保护而形成的蒙古栎次生林及对照柞蚕场蒙古栎林(3年生)为研究对象,对辽东山区蒙古栎次生林不同恢复阶段的种群结构与群落多样性进行了深入分析。研究结果表明:随封育林龄的增长,乔木层蒙古栎种群所占的重要值比例在降低,蒙古栎林在恢复演替进程中不断向阔叶混交林的方向发展;灌木物种间的重要值差距在减小;草本层植物种类在不断减少;蒙古栎林优势种群径阶分布宽度增加,径阶分布趋向于正态分布。在封育不同恢复阶段,羊胡苔草重要值均表现为最大,是草本群落最主要的物种。不同恢复阶段林分乔木层、灌木层物种多样性表现为随封育林龄的增长而增大,草本层多样性表现为随封育林龄的增长而减小。
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| 关 键 词： | 封育 蒙古栎次生林 种群结构 群落多样性 |
The population structure and species diversities of different restoration stages in Quercus mongolica stands of closed tussah fields |
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| JIN Gang,YOU Wen-zhong,ZHAO Gang,HOU Geng.The population structure and species diversities of different restoration stages in Quercus mongolica stands of closed tussah fields[J].Liaoning Forestry Science and Technology,2010(2):6-10,17. |
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| Authors: | JIN Gang YOU Wen-zhong ZHAO Gang HOU Geng |
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| Institution: | 1.Liaoning Academy of Forestry Sciences/a>;Shenyang 110032/a>;China/a>;2.Liaoning Provincial Institute of Poplar/a>;Gaizhou 115200/a>;China |
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| Abstract: | By means of the method of space for time and based on the secondary forests of Quercus mongolica formed after stumped and closed for different times(9,12 and 57 years respectively) and taking 3 years of Quercus mongolica forests in tussah fields as control,in-depth analyses on the population structures and the species diversities of different restoration stages for secondary forests of Quercus mongolica in mountainous areas in eastern Liaoning were conducted.The results showed that: as the ages of closed fo... |
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| Keywords: | closed forests secondary forests of Quercus mongolica population structure species diversity |
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