将豫东平原农区5a、9a、11 a和13a 4个林龄阶段的杨树-农作物复合系统分为林木、农作物、凋落物和土壤4个子系统，分别研究其碳贮量.结果表明：5a、9a、11a和13a杨树-农作物复合生态系统林木及凋落物的碳贮量分别为7.86、42.07、44.31和60.71 t·hm-2；间作作物平均每年可吸收CO2 6.8 t·hm-2；农田土壤碳贮量分别为45.55、51.06、55.94和60.49 t·hm-2；杨树-农作物间作系统的总碳贮量分别达60.81、100.09、106.76和127.34 t·hm-2，远高于单作农田（49.36 t·hm-2).各年龄阶段杨树和土壤碳贮量占总碳贮量的比例最大，在87.1%～93.1%，而农作物和凋落物碳贮量比例较小，占总贮量的6.9%～12.9%.说明农林复合生态系统具有很强的吸收和固定碳的能力.
Aimed to understand the carbon storage of poplar-crop ecosystem in Eastern Henan Plain, the poplar-crop ecosystems with different ages (5, 9, 11, and 13 years old) of poplar were selected, and each of them was further divided into four subsystems, i.e., forest, crop, litterfall, and soil. In the poplar-crop ecosystems with 5, 9, 11, and 13 years old poplar, the carbon storage of the subsystems forest and litterfall was summed as 7.86, 42.07, 44.31, and 60.71 t·hm-2, respectively. Subsystem crop averagely sequestrated 6.8 t·hm-2 of CO2 per year, and the carbon storage of subsystem soil chieved 45.55, 51.06, 55.94, and 60.49 t·hm-2, respectively. The total carbon storage of these four poplar-crop ecosystems reached 60.81, 100.09, 106.76, and 127.34 t·hm-2, respectively, much higher than that in mono-cultured farmland (49.36 t·hm-2). For the test poplar-crop ecosystems, the carbon storage of subsystems forest and soil occupied a large proportion, accounting for 87.1%-93.1% of the total carbon storage, while that of subsystems crop and litterfall occupied a relatively small proportion, being 6.9%-12.9% of the total, illustrating that agroforestry ecosystem had a high potential in carbon absorption and sequestration.