[1]林娜,刘勇*,于海群,等.不同林龄飞播油松林林下植被多样性研究[J].南京林业大学学报(自然科学版),2011,35(03):003.[doi:10.3969/j.jssn.1000-2006.2011.03.004]
 LIN Na,LIU Yong*,YU Haiqun,et al.Study on the diversity of understory vegetation in different age aerial seeding forests[J].Journal of Nanjing Forestry University(Natural Science Edition),2011,35(03):003.[doi:10.3969/j.jssn.1000-2006.2011.03.004]
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不同林龄飞播油松林林下植被多样性研究
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《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

卷:
35
期数:
2011年03期
页码:
003
栏目:
研究论文
出版日期:
2011-06-13

文章信息/Info

Title:
Study on the diversity of understory vegetation in different age aerial seeding forests
作者:
林娜1刘勇1*于海群12李国雷1吕瑞恒1
1. 北京林业大学,省部共建森林培育与保护教育部重点实验室,北京100083;2. 北京市园林绿化局,北京100029
Author(s):
LIN Na1LIU Yong1*YU Haiqun12 LI Guolei1 L Ruiheng1
1Key Laboratory for Silviculture and Conservation, Ministry of Education, Beijing Forestry University,Beijing 100083, China;2Beijing Municipal Bureau of Landscape and Forestry, Beijing 100029,China
关键词:
飞播油松林林下植被物种多样性
Keywords:
Key words:aerial seeding forest understory vegetation species diversity
分类号:
S718
DOI:
10.3969/j.jssn.1000-2006.2011.03.004
文献标志码:
A
摘要:
采用空间代替时间的方法,选择林龄分别为10、17和25年生飞播油松林为研究对象,分析3种林分林下植被的组成、优势种、垂直结构和林下植被物种多样性的变化。结果表明:10、17、25年油松林下植被物种数分别为27、24和20种,差异较小;3种林龄林分林下植被的优势种均为土庄绣线菊+三裂绣线菊-披针叶苔草。灌木层高度随飞播油松林龄的增大而增大,而草本层高度以17年生林分林下最大。灌木层和草本层盖度都是随林龄增大呈现先减小后增大的趋势;10、17和25年生飞播油松林下植被的物种ShannonWiener指数分别为2508、0824和0776,Pielow指数分别为0779、0256和0241,随林龄增大林下植被多样性下降,表明上层乔木对林下植被发育抑制程度加大。因此在适宜时期对飞播油松林进行抚育经营进而调控林分结构尤为必要。
Abstract:
Aerial seeding is a very important way of afforestation, and China aerial seeding area takes up the first place in the world.Compared to tree planting, aerial seeding has some shortcomings: the heavy density, enclosure management after the implementation of afforestation, early canopy, and poor development of understory vegetation. In this paper, using the method of space generation time, we selected three ages of aerial seeding forests: 10, 17 and 25 years old as the research objectives, and analyzed their compositions of understory vegetations, the dominate species, vertical stratifications and the changeable of species diversities. The results show that there exists a minor differences in the number of species among three different ages of aerial seeding forests, the number of species of understory vegetation in 10,17,25 years old forests were 27,24 and 20 respectively. The dominate species in 10, 17 and 25 aged forests are all Spiraea pubescens+Spiraea trilobataCarex lanceolata. Shrub layers height increases as the age of the forest increases. The 17 years old aerial seeding forest has the maximum herb layer height. Shrub and herb layers coverage first decreased and then increased when the trends age increases; the index of ShannonWiener of 10, 17 and 25 years old aerial seeding forest of understory vegetation is 2508,0824 and 0776, and Pielow index is 0779,0256 and 0241 respectively. The diversity of understory vegetation declines when the forest gets older, shows that, the arber layer gives a rising pressure to inhibit the growth of the understory vegetation, so it is necessary to manage aerial seeding forest at the appropriate time to control the forest structure is needed.

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备注/Memo

备注/Memo:
收稿日期:2010-07-23修回日期:2011-03-04基金项目:北京林业大学科技创新计划(BLJD200905);高等学校博士学科点专项科研基金(20090014110011);国家自然科学基金项目(30972353);北京市生态公益林质量升级关键技术研究产学研联合培养研究生基地资助项目(CXYBL2008-2010)作者简介:林娜(1986—),硕士生。*刘勇(通信作者),教授。Email:lyong@bjfu.edu.cn。引文格式:林娜,刘勇,于海群,等. 不同林龄飞播油松林林下植被多样性研究[J]. 南京林业大学学报:自然科学版,2011,35(3):16-20.
更新日期/Last Update: 2011-06-13