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尖峰岭热带森林土壤C储量和CO2排放量的初步研究
引用本文:吴仲民.尖峰岭热带森林土壤C储量和CO2排放量的初步研究[J].植物生态学报,1997,21(5):416-423.
作者姓名:吴仲民
作者单位:中国林科院热带林业研究所
基金项目:林业部重点项目,国家“八五”攻关项目
摘    要: 本文根据定位观测数据和有关历史资料,研究了海南岛尖峰岭林区主要森林土壤的有机C储量、热带山地雨林和半落叶季雨林凋落物的C储量和林地CO2的排放量、以及“刀耕火种”和砍伐森林等人类活动对土壤C的影响,对于进一步认识热带林的生态功能,弄清我国温室气体的排放量,正确评价中国森林在全球生物圈C平衡中的作用,具有一定的参考价值。

关 键 词:CO2排放量  C储量  热带森林土壤  海南岛

A Preliminary research on the Carbon Storage and CO2 Release of the Tropical Forest Soils in Jianfengling, Hainan Island, China
Wu Zhongmin,Zeng Qingbo,Li Yide,Zhou Guangyi,Chen Bufeng,Du Zhihu and Lin Mingxian.A Preliminary research on the Carbon Storage and CO2 Release of the Tropical Forest Soils in Jianfengling, Hainan Island, China[J].Acta Phytoecologica Sinica,1997,21(5):416-423.
Authors:Wu Zhongmin  Zeng Qingbo  Li Yide  Zhou Guangyi  Chen Bufeng  Du Zhihu and Lin Mingxian
Abstract:Based on the data of located observation in Jianfengling,Hainan Island,China, the following aspects were investigated: the carbon storage of the main tropical forest soils; the release of CO2 from the soils and litter layers under tropical mountain rain forest and tropical semi-deciduous monsoon forest; the effect of slash-and-burn agriculture on the content of soil carbon and the release of CO2 from soil; and the effect of clear-cutting on the soil carbon storage. The results show that the carbon storage of the main tropical forest soils in Jianfengling was from 97.10t·hm-2 to 119. 54t·’hm-2, and ,in average 102.60t·hm-2 ;in tropical mountain rain forest, the storage of carbon in litter layer was 2.98t·hm-2 ,and CO2 was released at a rate of 33.16t·hm-2·a-1 from the forest land, of which 29.89t·hm-2·a-1 from soil, 3.27 t·hm -2·a-1 from litter layer; in tropical semi-deciduous monsoon forest, CO2 is released with a rate of 10.50 t· hm-2·a-1 from the forest land. The effect of slash-and-burn agriculture on soil carbon was observed even at the depth of 60 cm below soil surface, the release of CO2 from the land under the activity of slash-and-burn agriculture was 37.9 % ,higher than that from the land covered with tropical semi-deciduous monsoon forest. The results also show that clear cutting-caused the decrease in the carbon storage of the forest soil and natural regeneration made the carbon storage recovered.
Keywords:Release of CO2  Carbon storage  Tropical forest soil  Jianfengling  Hainan Island  China
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