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当前位置: 首页 > 文章 > 岭南藜蒴栲-罗浮柿群系粗木质残体的基本特征 林业科学研究 2016,29 (3) 448-454
Position: Home > Articles > Character of Coarse Woody Debris in a Castanopsis fissa-Diospyros morrisiana Formation in Lingnan Region,China Forest Research 2016,29 (3) 448-454

岭南藜蒴栲-罗浮柿群系粗木质残体的基本特征

作  者：
樊小丽;周光益;赵厚本;邱治军;刘伟新;梁瑞友
单  位：
韶关市曲江区国营小坑林场;中国林业科学研究院热带林业研究所
关键词：
岭南;藜蒴栲-罗浮柿群系;粗木质残体;生物量方程
摘  要：
[目的]通过实地调查和采样对粗木质残体(CWD)进行量化研究,来了解未受冰灾干扰的岭南藜蒴栲-罗浮柿群系CWD的本底数据,建立CWD生物量回归方程。[方法]采用样方调查法,分析粤北小坑国家森林公园的常绿阔叶次生林在不同地形下CWD的基础特征及其存在形式、腐解等级和径阶的分布格局。[结果]表明:该林分CWD总贮量为8.25 t·hm~(-2),各腐解等级(1、2、3、4、5)所占比例分别为41.07%、17.75%、13.89%、21.74%、5.55%;CWD主要以倒木和枯立木的形式存在,其次是大枯枝和根桩;径阶结构主要集中在5 10、10 15 cm。[结论]CWD的空间异质性较大,但不同地形下其贮量、蓄积量、覆盖面积和数量差异不显著(p>0.05)。通过423个粗木质残体直径和质量的实测数据建立了CWD不同腐解等级的生物量幂函数回归方程。
译  名：
Character of Coarse Woody Debris in a Castanopsis fissa-Diospyros morrisiana Formation in Lingnan Region,China
作  者：
FAN Xiao-li;ZHOU Guang-yi;ZHAO Hou-ben;QIU Zhi-jun;LIU Wei-xin;LIANG Rui-you;Research Institute of Tropical Foresty,Chinese Academy of Foresty;Xiaokeng Forestry Farm of Qujiang District,Shaoguan City;
关键词：
Lingnan region;;Castanopsis fissa-Diospyros morrisiana formation;;CWD;;biomass equation
摘  要：
[Objective]In order to understand the basic data and establish biomass regression equation of coarse woody debris( CWD) in a Castanopsis fissa- Diospyros morrisiana formation which was not influenced by ice storm,we carried out field investigation and sampling in Xiaokeng National Park, located in north of Guangdong.[Methods]We analyzed the basic characteristics and existing forms,distribution patterns in decay class and diameter of CWD in different landforms by plant plot investigation method. [Results]The results indicated that the total biomass of CWD was 8. 25 t· hm~(-2),and the biomass in different decay class( 1、2、3、4、5) occupied 41. 07%,17. 75%,13. 89%,21. 74%,5. 55% respectively in the forest. The CWD was mainly composed of fallen logs and snags,followed by the large branches and stumps. Diameter structure of CWD concentrated in the range of 5 10 cm and 10 15 cm. [Conclusions]The spatial heterogeneity of CWD was high,but there was no significant difference in different landforms. Furthermore,biomass regression equation of CWD in different decay class levels were established by using 423 measured diameter and weight data of CWD.

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