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为研究不同利用方式对湿地草地土壤有机碳储量的影响,通过不同时段的土壤剖面有机碳含量的测定数据,分析不同利用方式下土壤碳储量的变化。结果表明:苔草地营造杨树林,对土壤有机碳储量的影响是一个骤变过程,可以引起土壤40cm甚至以下土层有机碳的损失;造林8年后,原来储存在土壤中的有机碳损失了33.89t/hm2;每年取走地上产品对土壤有机碳储量的影响是一个逐渐变化的过程,主要影响土壤表层尤其是0～10cm深土壤碳的积累量,与未受人为干扰的苔草地相比,8年内土壤有机碳的积累量只少1.95t/hm2。不论何种人为利用方式都减少了湿地草地土壤有机碳的积累量。
In order to study the effect of different ways of utilization on soil organic carbon storage in wetland grassland, the change of soil carbon storage under different utilization patterns was analyzed based on the measured data of soil organic carbon content in different periods. The results showed that poplar planting in moss grassland had a dramatic effect on soil organic carbon storage, which could cause the loss of organic carbon in soils below 40 cm. After 8 years of afforestation, the organic carbon originally stored in the soil lost 33.89 t / hm2. The impact of annual removal of above-ground products on soil organic carbon storage is a gradual process that mainly affects the accumulation of carbon in the soil surface, especially 0-10 cm soil depth. Compared with the moss grass area without human disturbance, Soil organic carbon accumulated less than 1.95t / hm2 in 8 years. No matter what kind of man-made way to reduce the wetland grassland soil organic carbon accumulation.