丰林自然保护区阔叶红松林粗木质残体研究  

Study on coarse woody debris in broadleaved-Korean pine forest of Fenglin National Natural Reserve

作　　者：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 宋国华 王全波 

机构地区：[1]中国科学院沈阳应用生态研究所,沈阳110016 [2]中国科学院研究生院,北京100049 [3]黑龙江丰林国家级自然保护区,五营153033

出　　处：《生态科学》2011年第2期150-155,共6页Ecological Science

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

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20X20m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75.61 m^3·hm^(-2),其中倒木,枯立木和树桩的贮量分别为66.24 m^3·hm^(-2),2.03 m^3·hm^(-1)和7.34 m^(-1)·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46%)和0-10cm(45%);倒木和枯立木的优势长度范围分别为0～5m(66%)和6m-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(26%)腐烂等级上。Coarse woody debris （CWD） is an important component in forest ecosystems and has a significant contribution to the maintenance of forest ecosystem health. A tdtal 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 m^3·hm^-2, of which down logs, snags, stumps were 66.24 m^3·hm^-2, 2.03 m^3·hm^-2, and 7.34 m^3·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%）.

关 键 词：粗木质残体 阔叶红松林 丰林国家级自然保护区 

分 类 号：S791.247[农业科学—林木遗传育种]