1. College of Resources and Environment， Jilin Agricultural University， Changchun 130118， China；
2. Key Laboratory of Sustainable Utilization of Soil Resources in the Commodity Grain Bases in Jilin
Province， Changchun 130118， China
Abstract：The typical chernozem developed from two kinds of soil parent materials in Jilin province
was selected to analyze the accumulation of soil organic carbon and stability of aggregates after add‐
ing different proportion of maize straw (0, 0.5%, 1%, 2%, 3%, 5%, 10% and 15%). The result showed the organic carbon content of LLC-Ap, LMC-Ap and LHC-Ap was increased by 0.28-4.67
times, 0.06-3.14 times and 0.07-2.10 times with the increase of maize straw application, respec‐
tively. And the organic carbon content of RLC1-Ap, RLC2-Ap and RHC-Ap was increased by 0.18-
4.00 times, 0.28-3.99 times and 0.06-2.82 times, respectively. The organic carbon content of LC
and RC was increased by 1.41-37.80 times and 1.48-38.23 times. The soil with less content of or‐
ganic carbon had greater potential for carbon sequestration. The carbon sequestration potential of the
parent materials was greater than that of surface soils. Meanwhile, the mean weight diameter (MWD)
of aggregates in different types of soil was gradually increased with the increased content of maize
straw application. For the treatments with the same content of straw application, the MWD values of
aggregates in different types of soil followed the order of LLC-Ap
