Structural dynamics of aboveground biomass of communities on Songnen grassland after different burning time

Abstract

Abstract: The structure of aboveground biomass of communities on Songnen grassland is changed in yaring degrees after different burning time.On burned plot,the litter is removed;but on unburned one,it is gradually transfered to the lower layer of the community.The stem is dwarfed on burned plot and its leaf biomass is greater;but on unburned plot,the ratio of stem to leaf is higher.The penetration coefficient of light is higher on burned plot than on unburned one.

Key words: Grassland, Burning, Biomass, Community, nutrient release, nitrogen deposition, fine root decomposition, root diameter

Zhou Daowei, Zhu Ling, Zhang Baotian. Structural dynamics of aboveground biomass of communities on Songnen grassland after different burning time[J]. Chinese Journal of Applied Ecology, 1996, 7(3): 280-282.

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Structural dynamics of aboveground biomass of communities on Songnen grassland after different burning time

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