南京林业大学学报(自然科学版) ›› 2013, Vol. 37 ›› Issue (02): 164-168.doi: 10.3969/j.issn.1000-2006.2013.02.030

• 研究简报 • 上一篇    下一篇

珍稀濒危植物长苞铁杉林地枯倒木数量特征

王 磊1,何东进1*,游惠明1,刘进山2,蔡昌棠2,游巍斌1,肖石红1,胡 静1,郑晓燕1   

  1. 1.福建农林大学林学院,福建 福州 350002;
    2.福建永安天宝岩国家级自然保护区,福建 永安 366032
  • 出版日期:2013-04-18 发布日期:2013-04-18
  • 基金资助:
    收稿日期:2012-02-28 修回日期:2012-07-03
    基金项目:教育部博士学科点专项科研基金项目(20103515110005); 国家自然科学基金项目(30870435); 福建省自然科学基金资助项目(2011J01071,08J0116)
    第一作者:王磊,硕士生。*通信作者:何东进,教授。E-mail: fjhdj1009@126.com。
    引文格式:王磊,何东进,游惠明,等. 珍稀濒危植物长苞铁杉林地枯倒木数量特征[J]. 南京林业大学学报:自然科学版,20

Quantitative characteristics of the dead logs of the rare and endangered Tsuga longibracteata forests

WANG Lei1,HE Dongjin1*,YOU Huiming1,LIU Jinshan2,CAI Changtang2,YOU Weibin1 XIAO Shihong1,HU Jing1,ZHENG Xiaoyan1   

  1. 1. College of Forestry, Fujian Agriculture and Forestry University,Fuzhou 350002,China; 2. Tianbaoyan National Nature Reserve Fujian Province,Yong’an 366032,China
  • Online:2013-04-18 Published:2013-04-18

摘要: 对天宝岩国家级自然保护区长苞铁杉林不同海拔、不同腐烂等级枯倒木的径级结构、高度/长度分布,以及材积分布特征等进行了研究,结果表明:(1)天宝岩长苞铁杉林枯倒木主要由小径级木组成,且数量随着海拔的升高呈先降低后上升的趋势,中径级枯倒木所占比例呈现出先升高后降低的趋势,而大径级枯倒木数量最少;(2)枯倒木的高度/长度主要集中在1~6 m,随着高度/长度的增加,各海拔分布的枯倒木所占比例均减小;(3)不同腐烂等级枯倒木材积的变化趋势为Ⅲ>Ⅳ>Ⅱ>Ⅴ>Ⅰ;(4)不同径级枯倒木材积的分布呈现中径级较大,大径级次之,小径级较小的趋势。

Abstract: The dynamic changes of diameter distribution, decay class, height/length distribution and volume distribution were studied in this paper. The results showed that:(1)The Tsuga longibracteata forests in Tianbaoyan National Nature Reserve was mainly composed of small-diameter dead logs which showed a reduction trend in diameter with altitude increasing.While mid diameter logs showed a downward trend in diameter with altitude increasing after the first increase with altitude increasing.And the amount of large diameter dead logs was the least.(2)The height/length ratio of dead logs mainly distributed at the range of 1-6 m.And with the height / length ratio increase,the proportion of dead logs in various altitude reduced.(3)The volume of dead logs in order was Ⅲ>Ⅳ>Ⅱ>Ⅴ>Ⅰ.(4)With the increase of diameter,the volume of dead logs was in order of mid diameter>large diameter>small diameter.

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