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Larch Daxinganling region there are mainly two : one is burned forest floor , one is the transformation of wetland afforestation . To understand the different periods of the carbon sink capacity of Larch , we use \organic carbon , respectively, to estimate their total biomass and carbon stocks in order to better evaluate the carbon sink larch capabilities for Daxinganling artificial tending mode provides reference data . The results are as follows : ① Burned and wetlands after transformation plantation tree biomass, shrub and grass biomass with stand age increases showed the same trend, that tree biomass with stand age increases , shrub and grass biomass with forest age increases. ② In the surveyed plots burned in Plantation , 1a growing plantations largest reserves of soil organic carbon , and with increasing stand age , there is a trend first decreases and then increases , but so far to 21a , the soil organic carbon reserves are still far below the 1a plantation soil organic carbon ; while wetland transformation plantation plots , the soil carbon stock change trend is not obvious. ③ In the surveyed plots burned in Plantation , 1a raw plantation ecosystem carbon largest reserves , with an increase in forest age , showing and soil organic carbon storage the same trend , which is to reduce and then increase ; wetland transformation after the plantation plots , with the forest age increases, increasing ecosystem carbon storage , show some carbon sink capacity . ④ Larch Daxinganling region 's soil organic carbon storage than carbon storage plants , plants increase in carbon stocks do not represent larch is a \entire plantation ecosystem roles ( carbon or carbon sinks ) .
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