Biomass Structure and Distribution of Korean Larch Plantations

Abstract

Abstract: The biomass and net productivity of Korean larch(Larix olgensis)plantations were investigated through the mean sample tree of diameter class and sample quadrat.The results showed the biomass of Korean larch was 120.55t/hm² and that the annual net productivity was 8.47t/(hm²·a).The biomass of the ecosystem was distributed descendingly as follows:tree layer>litter>undergrowth>herb.The total biomass and net productivity of tree layer were 102.17 t/hm² and 8.09t/(hm²·a),respectively.The distribution pattern of organic biomass was stem > root>bark> branch>leaf.With respect to the production structure,stems under 8m accounted for up to 81.8% of total stem biomass,branches between 10m to 14m accounted for up to 38.37% of total branch biomass,and leaves between 10m to 14m accounted for up to 73% of total leaf biomass.Coarse root took a proportion of up to 53.98% of total root biomass.The root biomass was distributed in a descending manner as coarse root(>5cm)> root stumpage> medium root(0.5～5cm)> fine root(<0.5cm).

Key words: Korean larch, plantation, biomass, productivity

CLC Number:

S718.55⁺6

XUAN Zhilong, ZHANG Qichang, GE Lili, HE Huaijiang, XU Minmin, XU Weisheng. Biomass Structure and Distribution of Korean Larch Plantations[J]. FOREST RESOURCES WANAGEMENT, 2013, (1): 53-57.

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