Abstract: Since the late 1950s, land reclamation from lake has been a common human disturbance on lake ecosystems in China, and some shallow aquatic areas of lakes were converted into terrestrial soil with different land use types and managements. However, there is little known about the impact of different land use types on the soil carbon(C)cycle. We examined the influences of land use types on soil dissolved organic carbon(DOC)extracted from the cold-water(c_DOC,CW), hot-water(c_DOC,HW)and CaCl₂ solution(c_DOC,CaCl2), respectively. The results showed that the c_DOC,HW was 2-6 times larger than c_DOC,CW, and 4-9 times larger than c_DOC,CaCl2. Under the four land use types, i.e. coniferous forest(MG), evergreen broadleaf forest(CC), moso bamboo forest(PE)and cropland(CL), all c_DOC,CW, c_DOC,HW and c_DOC,CaCl2 decreased with the increase of the soil depth. The c_DOC,CW under the different land use types exhibited the trends of CL ＞ PE ＞ MG in both 0-10 cm and ≥10-25 cm soil depth, while the c_DOC,HW and c_DOC,CaCl2 under PE were larger than that under the other land use types. The c_DOC,HW and c_DOC,CaCl2 under the four land use types showed significant correlations with the soil organic carbon(SOC), total nitrogen(TN)and pH, and the c_DOC,HW and c_DOC,CaCl2 under the MG was significantly positive correlation with the soil microbial biomass carbon(BMBC). However, c_DOC,CW was only correlated with the SMBC at the land use type of CC. The results indicated that the soil DOC was affected by different soil properties induced from the different land use and management. The findings of this study are helpful to understand the impact of land use types reclaimed from lake on soil C cycle.