不同林龄兴安落叶松生物量、碳密度及其分布特征

Biomass,Carbon Density and Distribution Characteristics in Different Age Larix gmelinii Plantations

[目的]探讨不同发育阶段兴安落叶松人工林生物量和碳密度的变化规律。[方法]对辽宁东部山区13、23和32年兴安落叶松人工林生物量和各器官碳密度进行调查。[结果]兴安落叶松乔木层各器官生物量的分配序列均为:树干生物量>树根生物量>树枝生物量>树皮生物量>树叶生物量。32年兴安落叶松人工林林木和各器官生物量高于13年和23年的兴安落叶松人工林,32年兴安落叶松人工林仍有增加碳密度的潜力。[结论]该研究为兴安落叶松人工林群落碳汇功能与林分经营分析提供基础资料。

[Objective]The paper discussed the change regularity of biomass and carbon density in different development stages of Larix gmelini plantation.[Method] The biomass and carbon density in each organ of 13a、23a and 32 a Larix gmelini plantation were investigated in the Eastern Region of Liaoning Province.[Result]The results showed that the sequence distribution of biomass in different tree layer organs were：trunk biomass 〉 root biomass 〉 branch biomass 〉 bark biomass 〉 leaves biomass.The biomass of 32 a was higher than 13 a and 23 a,in addition,32 a Larix gmelini plantation had the potential for increasing carbon density.[Conclusion]It provided the basis for carbon sink function and forest management research of Larix gmelini plantation.