丰林自然保护区阔叶红松林粗木质残体研究

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摘要

粗木质残体(CWD)是森林生态系统的重要组成部分,对维持森林生态系统健康具有不可忽视的贡献.采用典型取样法在黑龙江丰林国家级自然保护区设置了17块20×20m的标准样地,拟对保护区内阔叶红松林中粗木质残体的贮量、形态组成、直径、长度及腐烂度等特征进行研究.研究结果表明:(1)CWD总贮量为75.1m³·hm^-2,其中倒木,枯立木和树桩的贮量分别为.24 m³·hm^-2,2.03m³·hm^-2和7.34m³·hm^-2.(2)倒木和枯立木的优势径级范围分别为11cm～20cm(占CWD总数的4%)和0-10cm(45%);倒木和枯立木的优势长度范围分别为0-5m (%)和m-10m(49%).(3)CWD腐烂度呈近正态分布,且主要分布在Ⅱ(28%),Ⅲ(35%)和Ⅳ(2%)腐烂等级上.

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	吴志伟
	贺红士
	刘晓梅
	吴志丰
	梁宇
	张培峰
	李淑华

关键词 ：粗木质残体, 阔叶红松林, 丰林国家级自然保护区

Abstract：

Coarse woody debris(CWD)is an important component in forest ecosystems and has a significant contribution to the maintenance of forest ecosystem health.A total of 17 plots each with 20 m×20 m in size were typically located and sampled throughout the Fenglin National Nature Reserve.Storage,diameter,length,and decay rank of CWD in broadleaved-Korean pine forest were investigated.The results are as follows.(1)The CWD storage of broadleaved-Korean pine forest amounted to 75.61 m³·hm^-2,of which down logs,snags,stumps were 66.24 m³·hm^-2,2.03 m³·hm^-2,and 7.34 m³·hm^-2,respectively.(2)The dominant diameter classes of down logs and snags were 11-20 cm(46%,of total CWD in quantity) and 0-10 cm(45%),respectively;the dominant length classes of down logs and snags were 0-5 m(66%) and 6-10 m(49%),respectively.(3)The distribution of decay classes of CWD presented approximately normal distribution,and mainly concentrated on classes Ⅱ(28%),Ⅲ(35%),and Ⅳ(26%).

Key words： coarse woody debris broadleaved-Koreari pine forest Fenglin National Natural Reserve

收稿日期: 2011-04-25

S718.5

基金资助:中科院知识创新工程重大项目资助(KZCX2-YW-444);973课题2009CB421101资助

引用本文:

吴志伟1,2*, 贺红士1, 刘晓梅1, 吴志丰1, 梁宇1, 张培峰1, 李淑华3, 宋国华3, 王全波3. 丰林自然保护区阔叶红松林粗木质残体研究[J]. , 2011, 30(2): 150-155.
WU ZHi-wei1,2, HE Hong-shi1, LIU Xiao-mei1, WU Zhi-feng1, LIANG Yu1, ZHANG Pei-feng1, LI Shu-hua3, SONG Guo-hua3, WANG Quan-bo3. Study on coarse woody debris in broadleaved-Korean pine forest of Fenglin National Natural Reserve. , 2011, 30(2): 150-155.

链接本文:

http://www.ecolsci.com/CN/Y2011/V30/I2/150

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