This study is based on the field data obtained for the main forest types in Xing'an mountains region

including coniferous forest

mixed forest

birch forest

pine forest and Mongolian oak forest.By usingstatistical method

the vertical distribution characteristics of soil organic matter

total nitrogen

availablephosphorus and potassium are analyzed and the soil nutrient status is evaluated.Results indicate that thecontents of soil organic matter

total nitrogen

available phosphorus and potassium are different significantlyamong various forest soil(0-40cm)types.The contents of organic matter

total nitrogen and availablephosphorus in the soils of birch forest and mixed forest are the highest

followed by that in coniferous forestand then Mongolian oak forest.The available potassium content in soils of the Mongolian oak forest andbirch forest is the highest and in the mixed forest

the lowest.The improved Nemerow comprehensive indexis used to evaluate soil quality.The results show that the contents of organic matter and total nitrogen areespecially abundant in Xing'an Mountain forest soils

and the content of available phosphorus is in the medium to high level.The overall soil nutrient of the studied forests is in a relatively high level

but the content of available potassium is in a low level.Lack of available potassium has become a major limitation in this area.