新江实验林场主要林分类型碳汇计量研究

Carbon Sink Accounting of Main Forest Types in Xinjiang Experimental Forest Farm

在新江实验林场银中杨、小黑杨、樟子松、落叶松等林分内设置标准地,利用生物量法对标准地的乔木树种的干、枝、叶、根的生物量、碳储量及年净固碳量分别计量。结果表明,银中杨林分的生物碳储量最高,为80.85t·hm^(-2),小黑杨、樟子松和兴安落叶松林分的生物碳储量分别为47.75、23.29和20.88t·hm^(-2);不同的林分类型年净固碳量差异很大,银中杨的年净固碳量较大,银中杨、小黑杨、樟子松、兴安落叶松林分的年净固定二氧化碳量分别为14.82、7.27、4.50和3.83t。

In the Xinjiang Experimental Forest Farm,standard plots were set in stand of Populus alba×Populus berolinensis,Populus× xiaohei T.S.Hwang et Liang,Pinus sylvestris var.mongolica,Larix gmelinii.The biomass,carbon storage and annual net carbon fixation of stem,shoots,leaves and roots of standard tree species were measured by biomass method.Result shows that the bio-carbon storage is the highest,80.85 t·hm^(-2),and the biocarbon storage is 47.57 t·hm^(-2).The biochar storage of Pinus sylvestris var.mongolicais 23.29 t·hm^(-2),The biomass carbon storage of larch stands is 20.88 t·hm^(-2).The annual net fixed carbon content of different forest types is very different,and the net fixed carbon content of Populus alba×Populus berolinensis is the highest,and the net fixed carbon dioxide of Populus alba×Populus berolinensis,Populus× xiaohei T.S.Hwang et Liang,Pinus sylvestris var.mongolica,Larix gmelinii is14.82 t,7.27 t,4.50 t,3.83 t.