The spatial distribution patterns of the soil organic carbon(SOC)

total nitrogen(TN) and the stock of SOC were studied in Northeastern China.The relationships among the SOC and TN with and mean annual temperature(MAT)

and precipitation(p)

effective accumulation temperature(s) and p/t(the ratio of precipitation to mean annual temperature) were also analyzed.The effects of long term fertilization on the content of SOC and TN in areas with different gradients of rainfall and temperature.The results showed that the contents of SOC and TN and the stock of SOC enhanced with the increase of latitude

and the significant relationships were found amog the contents and stock of SOC and TN and the precipitation and temperature.The addition of manure and reasonable chemical fertilizers could increase the content of SOC under the same precipitation and temperature.The differences of the contents of SOC and TN and the stock of SOC were significant under the same fertilization and the different precipitation and temperature.