全球土壤有机碳库(SOC pool)达到1.5×103～2×103 Pg，是大气碳库的3倍，约是陆地生物量的2.5倍；无机碳库(SIC pool)也达0.7×103～1×103 Pg[1]。
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Soil carbon management index (CMI) sensitively reflected the dynamics changes of SOC pool under with different land use and different soil managements.
土壤碳管理指数（CMI）较好的反映了在不同的管理方式下土壤有机碳库水平的动态变化情况。
Land use, cultivation, crop selection, planting density, irrigation, fertilization, and other anthropogenic activities all affect the dynamics of SOC pool.
土地利用、耕作、作物类型、种植密度、灌溉、施肥以及其他人为活动等，对农田生态系统土壤有机碳库的变化均能产生影响。
The SOC content was increased after maize planting, but decreased in the bare soil, indicating that growing maize enhanced the function of soil as a carbon pool.
种植玉米后，土壤有机碳含量增加，说明在供试土壤上，玉米生长促进了土壤碳汇的作用；
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