珍稀濒危植物长苞铁杉林地枯倒木数量特征

王磊; 何东进; 游惠明; 刘进山; 蔡昌棠; 游巍斌; 肖石红; 胡静; 郑晓燕

doi:10.3969/j.issn.1000-2006.2013.02.030

珍稀濒危植物长苞铁杉林地枯倒木数量特征

王磊,何东进,游惠明,刘进山,蔡昌棠,游巍斌,肖石红,胡静,郑晓燕

南京林业大学学报（自然科学版） ›› 2013, Vol. 37 ›› Issue (02) : 164-168.

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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

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

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

WANG Lei¹,HE Dongjin^1*,YOU Huiming¹,LIU Jinshan²,CAI Changtang²,YOU Weibin¹ XIAO Shihong¹,HU Jing¹,ZHENG Xiaoyan¹

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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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王磊,何东进,游惠明,刘进山,蔡昌棠,游巍斌,肖石红,胡静,郑晓燕. 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）. 2013, 37(02): 164-168 https://doi.org/10.3969/j.issn.1000-2006.2013.02.030

WANG Lei,HE Dongjin,YOU Huiming,LIU Jinshan,CAI Changtang,YOU Weibin XIAO Shihong,HU Jing,ZHENG Xiaoyan. Quantitative characteristics of the dead logs of the rare and endangered Tsuga longibracteata forests[J]. JOURNAL OF NANJING FORESTRY UNIVERSITY. 2013, 37(02): 164-168 https://doi.org/10.3969/j.issn.1000-2006.2013.02.030

中图分类号： S757

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基金

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