[1]章文佳,王乃江*,黄耀,等. 正宁县油松人工林发育过程中林下群落结构和物种多样性的研究[J].西北林学院学报,2015,30(04):21-29.[doi:doi:10.3969/j.issn.1001-7461.2015.04.04]
　ZHANG Wen-jia,WANG Nai-jiang*,HUANG Yao,et al. Understory Community Structure and Species Diversity of the Chinese Pine Plantations at Different Developmental Stages in Zhengning County[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2015,30(04):21-29.[doi:doi:10.3969/j.issn.1001-7461.2015.04.04]
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 正宁县油松人工林发育过程中林下群落结构和物种多样性的研究()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第30卷
期数:
2015年04期
页码:
21-29
栏目:
出版日期:
2015-07-31

文章信息/Info

Title:
 Understory Community Structure and Species Diversity of the Chinese Pine Plantations at Different Developmental Stages in Zhengning County
文章编号:
1001-7461(2015)04-0021-09
作者:
 章文佳; 王乃江*; 黄耀; 党鹏
 (西北农林科技大学 西部环境与生态教育部重点实验室，林学院，陕西 杨陵 712100)
Author(s):
 ZHANG Wen-jia;  WANG Nai-jiang*;  HUANG Yao;  DANG Peng
 (Key Laboratory of Environment and Ecology in Western China, Ministry of Education, College of Forestry, Northwest A&F University, Yangling, Shaanxi 712100, China)
关键词:
 ; 油松人工林; 发育阶段; 物种多样性; 子午岭
Keywords:
Pinus tabulaeformis plantation;  developmental stage;  species diversity;  ziwuling
分类号:
S718.54
DOI:
doi:10.3969/j.issn.1001-7461.2015.04.04
文献标志码:
A
摘要:
 以正宁县中湾林场油松人工林为研究对象，用空间代替时间的方法，从Raunkiaer生活型和多样性指数等方面对林下群落结构及物种多样性进行了研究。结果表明：1）不同发育阶段油松人工林和对照样地植物种类组成丰富，共包含29个科61个属80种；从油松幼龄林开始，林下物种逐渐丰富，耐阴植物和广生态幅的植物逐渐取代阳性植物并表现出优势地位；2）油松人工林林下高位芽、地上芽和地面芽植物占主要优势；灌木层均以高位芽层片为优势层片，地面芽和地上芽层片为草本层的优势层片；3）随着油松人工林发育，林下总体物种多样性和均匀度指数增加，近熟林林下植物丰富度显著高于中龄林，均匀度指数显著高于幼龄林。说明油松人工林的种植很大程度改变了群落的面貌，不仅改善了林下群落结构，而且具有显著恢复生物多样性的功能。
Abstract:
 Taking the Pinus tabulaeformis plantations at different developmental stages in Zhongwan Forest Farm, Zhengning County as the objects, the concept of substituting spatial sequence for time successional sequence was adopted to investigate the understory community structure and species diversity from the aspects of Raunkiaer life-form, diversity index, etc. The following results were obtained: 1) 80 plant species were observed in the understory, belonging to 29 families and 61 generas; starting from the young stands, the plant species unevenly increased as they developed: the heliotropes were gradually replaced by sciophiles and those with wide ecological amplitude. 2) Phanerophytes, chamaephytes and hemicryptophyte were dominant in the understory communities; phanerophytes dominated in shrub layer, while chamaephytes and hemicryptophyte showed advantages in herb layer. 3) The understory diversity and evenness index increased as the development of P. tabulaeformis plantations; the richness and evenness in near-mature stands were significantly higher than those of middle-aged stands and young stands, respectively. The results indicated that the plantations had changed the physiognomy of community, not only improving the community structure, but restoring the biodiversity.

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备注/Memo

备注/Memo:
 收稿日期：2015-01-22修回日期：2015-05-01
基金项目：西北农林科技大学基本科研业务专项资金项目（ZDXM2012-10）；科技部国家“十二五”科技支撑计划项目（2012BAD22B03-03）。
作者简介：章文佳，女，硕士研究生，研究方向：森林培育和生态。E-mail:zwj900314@163.com
*通信作者：王乃江，男，博士，副教授，硕士生导师，研究方向：干旱区森林培育，植被恢复和天然林恢复。E-mail:wang7082261@163.com
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