This study focuses on Larix principis-rupprechtii plantations of different ages(17 years,30 years,and 46 years)in the Daqingshan National Nature Reserve,Inner Mongolia,employing field surveys and laboratory analyses to investigate the carbon density and distribution characteristics of the arboreal layer in these plantations.The results indicate that the carbon density of the arboreal layer in Larix principis-rupprechtii plantations increases with age,with the highest at 46 years(15.03 t/hm2),followed by 30 years(13.65 t/hm2),and then 17 years(9.21 t/hm2);the carbon density of Larix principis-rupprechtii plantations significantly increases from 17 to 30 years,with an average annual increment of 0.342 t/hm2,while the increase in carbon density slows down from 30 to 46 years;the carbon density in plantations of different ages is primarily contributed by the trunk,indicating that the trunk is the main provider of carbon storage in the arboreal layer.
关键词
人工林/华北落叶松/生物量/碳密度
Key words
plantation/Larix principis-rupprechtii/biomass/carbon density
维普
万方数据