详细信息
尖峰岭热带山地雨林群落呼吸量初步测定 被引量:20
Measurement for Respiration of Tropical Mountain Rain Forest in Jianfengling,Hainan Island
文献类型:期刊文献
中文题名:尖峰岭热带山地雨林群落呼吸量初步测定
英文题名:Measurement for Respiration of Tropical Mountain Rain Forest in Jianfengling,Hainan Island
作者:李意德[1,2] 吴仲民[1,2] 曾庆波[1,2] 周光益[1,2] 陈步峰[1,2] 方精云[1,2]
第一作者:李意德
机构:[1]中国林业科学研究院热带林业研究所;[2]中国科学院生态环境研究中心
年份:1997
卷号:10
期号:4
起止页码:348-355
中文期刊名:林业科学研究
外文期刊名:ROREST RESEARCH
收录:CSTPCD;;Scopus;北大核心:【北大核心1996】;CSCD:【CSCD2011_2012】;
基金:国家"八五"攻关项目;林业部重点项目
语种:中文
中文关键词:热带山地雨林;直径分布;呼吸速率;呼吸量
外文关键词:tropical mountain rain forest diameter distribution respiration rate respiration organic dry matter consumption
分类号:S718.54
摘要:用密闭吸收法测定了海南岛尖峰岭热带山地雨林主要树种的树干、树枝、树叶、树根等组分的呼吸速率,根据PipeModel理论,测出了主要树种木质器官的直径频度分布模型;树干、树枝及树根的呼吸速率与直径呈良好的幂函数关系;求出了单株林木呼吸总量与胸径之间的经验公式,计算森林群落(乔木层)月呼吸量[t/(hm2·月)]:树干1.69~1.73、树枝0.78~0.79、树叶0.81~0.83、树根0.24~0.25,总计为3.5~3.6t/(hm2·月),由此而推算年呼吸量约为42.2~43.1t/(hm2·a),需消耗干物质约为22.7~23.2t/(hm2·a)。
The respiration of tropical mountain rain forest in Jianfengling of Hainan Island was measured from 1992 to 1994 by means of chemical method.Based on the pipe model theory,the simulation models of respiration rate of tree′s non assimilation organs(stem,branch and root)and the respiration rates of leaf were conducted.The results indicated that:the respiration rate of fresh leaf was 70.6 mg CO 2/(kg·h),the amount of respiration of the forest community (tree layer)at the measurement temperature 24.5 ℃ were 3.5~3.6 t/(hm 2.month),of which the stem 1.69~1.73,the branch 0.78~0.79,the leaf 0.81~0.83,the root 0.24~0.25,and yearly respiration was up to 42.2~43.1 t/(hm 2·a).So the community needed to consume the organic dry matter up to 22.7~23.2 t/(hm 2·a).
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