| This paper is characterized with the Larix gmelinii ecological system as the research object, The biomass, litter content, soil moisture, soil carbon breathing, root growth and decomposition analysis determination, obtain that the larix Gmelini forest ecological system input of the carbon and carbon output, and evaluate its carbon balance.The Main conclusions are as follows:1The Larix gmelinii total carbon storage for287.48t/hm2, the layer of soil carbon storage for the maximum242.17t/hm2, herbaceous layer of carbon storage for minimum0.68t/hm2, tree layer of carbon storage for25.26t/hm2, shrub layer of carbon storage forl2.43t/hm2, litter layer of carbon storage for6.94t/hm2. The size of the order of the soil layer (84.24%)> tree layer (8.79%)> shrub layer (4.32%)> litter layer (2.41%)> herb layer (0.24%)2The Larix gmelinii carbon input capacity of8.81t/hm2, litter carbon input amount greater than root carbon input quantity, biomass of forest litter is5.60t/hm2, root growth rate is3.211/hm2.3The Larix gmelinii soil respiration during the growth season into a single peak curve, peak occurs at relatively high temperature the plants began to grow in July, the lowest in June.Five different processing (litter removal, removal of double trench digging underground root, trenching method for removal of underground root removal of litter on soil respiration, controlled) have a certain influence. Trench digging method for removal of underground root has the most significant influence, in addition to litter double can increase the soil respiration rate and other processing soil respiration rate decrease.4The Larix gmelinii ecosystem carbon input and carbon output value for6.25, so the larix Gmelini Forest ecological system showed a carbon sink function. |
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