鼎湖山主要森林生态系统地表CH4通量

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Abstract

The CH₄ uptake flux by soils of three types of forest in Dinghushan reserve-monsoon evergreen broad-leaved forest,coniferous and broad-leaved mixed forest and pine forest,which are in different stages of vegetation succession-were measured for one year by using static chamber-gas chromatograph technique.Highest CH₄ uptake flux was found for monsoon forest,then followed by mixed forest and pine forest.The difference of CH₄ flux among the different forests closely relates to their soil properties.That is,the lower soil bulk density is and the more soil organic matter is,the higher CH₄ uptake flux by soil is.Litter on the soil surface had little effect on the CH₄ flux for the three forests.CH₄ uptake fluxes did not show any significant dependency on soil temperature and soil moisture through the whole year,but soil temperature had positive effect on CH₄ uptake flux during dry season.

Key words： Dinghushan biosphere reserve CH4 flux Litter Seasonal dynamics

Received: 25 August 2006

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	Articles by authors
	ZHOU Cun-yu
	ZHOU Guo-yi
	WANG Ying-hong
	ZHANG De-qiang
	LIU Shi-zhong

Cite this article:

ZHOU Cun-yu,ZHOU Guo-yi,WANG Ying-hong, et al. The CH4 uptake flux by soils of main forest ecosystems in Dinghushan[J]. , 2006, 25(4): 289-293.

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http://www.ecolsci.com/EN/ OR http://www.ecolsci.com/EN/Y2006/V25/I4/289

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