内蒙古东部山地森林主要树种的生物量及生产力研究

STUDIES ON BIOMASS AND PRODUCTIVITY OF MAIN FOREST IN THE EASTERN INNER MONGOLIA MOUNTAINS

在内蒙古东部山地选取森林的主要类型树种,应用生长模型对生物量和生产力进行研究。结果表明:在各树种生物量组成中,树干生物量最大,占总生物量的34.43%-62.93%,而皮、枝和根生物量比例间的大小关系因树种不同而有所差异;森林的乔木层平均生物量从大到小依次为樟子松>兴安落叶松>白桦>山杨>大果榆>油松>蒙古栎;净生产力从大到小依次为樟子松>兴安落叶松>白桦>山杨>油松>大果榆>蒙古栎。

This study selected main types of forest tree species in the eastern Inner Mongolia mountain,application growth model to study biomass and productivity.The results showed that： Allocation of biomass to trunks was the greatest in all measured species,and it made up 34.43 %-62.93 %,however allocation of biomass to barks,branches,leaves and roots were varied with different species;Tree layer Average biomass in descending order Pinus sylvestris Larix gmelini Betula platyphalla Pobulus davidiana Ulmus macrocarpa Pinus tabuliformis Quercus mongolica;Net productivity in descending order Pinus sylvestris Larix gmeliniBetula platyphalla Pobulus davidiana Pinus tabuliformisUlmus macrocarpaQuercus mongolica.