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基于对西平县杨树人工林植被生物量,土壤容重和碳含量的调查,估算杨树林生态系统碳贮量。研究表明:杨树林的乔木层碳密度波动在0.489~0.512g/g,杨树各器官的碳密度大小依次是树叶>树干>树枝>树根,整个植被层碳贮量大小依次是乔木层>林下植被层>凋落物层,与其各自生物量所占比例相当;土壤层的碳密度以0~20 cm的最高,往下逐渐降低;整个杨树林的碳贮量为164.29 t/hm2,乔木层碳贮量在整个植被层碳贮量中处于主导地位,占整个植被层碳贮量的97.36%。
Based on the investigation of vegetation biomass, soil bulk density and carbon content of poplar plantations in Xiping County, the carbon storage of poplar forests was estimated. The results showed that the carbon density of tree layer fluctuated from 0.489 to 0.512 g / g, the carbon density of various organs of poplar was leaf> tree trunk> tree branch> tree root. The order of carbon storage in the whole plantation was arbor layer> Lower layer> litter layer, with the proportion of their respective biomass; the carbon density of soil layer decreased from 0 to 20 cm, and decreased gradually; the carbon storage of the whole poplar forest was 164.29 t / hm2, The reserve of carbon storage in the whole vegetation layer dominates, accounting for 97.36% of the total carbon storage in the vegetation layer.