当前位置: 首页 > 文章 > 海拔对天宝岩长苞铁杉林粗死木质残体分布的影响 福建农林大学学报(自然科学版) 2011,40 (4) 365-369
Position: Home > Articles > Influence of elevation on coarse woody debris in Tsuga longibracteata forest in Tianbaoyan national nature reserve Journal of Fujian Agriculture and Forestry University(Natural Science Edition) 2011,40 (4) 365-369

海拔对天宝岩长苞铁杉林粗死木质残体分布的影响

作  者:
游惠明;何东进;洪伟;游巍斌;刘进山;蔡昌棠;王磊;叶贤双
单  位:
福建农林大学林学院;福建农林大学生命科学学院;永安天宝岩国家级自然保护区
关键词:
天宝岩国家级自然保护区;长苞铁杉林;粗死木质残体;海拔;分布
摘  要:
对天宝岩国家级自然保护区不同海拔长苞铁杉林粗死木质残体(coarse woody debris,CWD)的直径、数量、体积、高度及腐烂等级的分布特征进行对比研究.结果表明:(1)不同海拔的CWD主要分布在0-20 cm的小径级范围,数量和体积随径级的增加呈下降趋势;(2)海拔对倒木数量分布有极显著影响(df=2,P=0.006),倒木的数量随海拔上升而减少;枯立木的数量、体积随海拔的上升而增加;(3)不同海拔CWD主要分布在0-5 m高度级,且此高度级内CWD的数量分布随海拔的下降而增加;(4)倒木数量在不同腐烂等级上的分布差异显著(df=4,P=0.033).
译  名:
Influence of elevation on coarse woody debris in Tsuga longibracteata forest in Tianbaoyan national nature reserve
作  者:
YOU Hui-ming1,HE Dong-jin2,HONG Wei2,YOU Wei-bin1,LIU Jin-shan3,CAI Chang-tang3,WANG Lei2,YE Xian-shuang2(1 College of Life Science,Fujian Agriculture and Forestry University,Fuzhou,Fujian 350002,China;2.Forestry College,Fujian Agriculture and Forestry University,Fuzhou,Fujian 350002,China;3.Tianbaoyan National Nature Reserve,Yong'an,Fujian 366032,China)
关键词:
Tianbaoyan national nature reserve;Tsuga longibracteata forest;coarse woody debris;elevation;distribution
摘  要:
The comparative study on the diameter,number,volume,height and decay class distribution of coarse woody debris(CWD) at different elevations in Tianbaoyan national nature reserve was conducted.The results were as follows:(1) Tsuga longibracteata forest was mainly composed of small-diameter-class CWD at different elevations,the number and volume of CWD decreased with the increase of diameter;(2) the elevation significantly affected the number of fallen trees(df=2,P=0.006),the number of fallen trees decreased with the increase of the elevation,while the snags,amount increased with the increase of the elevation;(3) CWD was mainly distributed in 0-5 m,and the number increased with the decrease of elevation;(4) the decay class significantly affected the number of CWD(df=4,P=0.033).

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