This paper measured soil nutrients in 5planted pure forests of in Wuling Mountains of Hebei.The effects of different forest types on soil pH,organic matter,nutrients and available nutrients were studied,and soil nutrients were analyzed by principal component analysis.The results showed that soil pH values in 5different kinds of forests were weak acidity,the range was 4.61~6.31;soil organic matter in different layers decreased in the order of 0—10cm >10—20cm>20—40cm,means of organic matter are 2.53~9.60g/kg;...