Abstract:In order to reveal the nutrient resorption characteristics of the main tree species of different succession stages and vegetation types in Ziwuling forest area on Loess Plateau, we selected four secondary succession forest tree species (Quercus wutaishansea Mary, Pinus tabuliformis Carr., Betula platyphylla Suk., and Populus davidiana Dode) and two artificial forest tree species (Robinia pseudoacacia L., and Platycladus orientalis (L.) Franco). The C, N and P concentrations of soil, green leaves, and senesced leaves were determined, and the N and P resorption efficiency (NRE and PRE) and C:N:P stoichiometry ratios were calculated. The results showed that (1) the soil and leaves nutrients were significantly different among different tree species.The soil C and N contents and C:N:P stoichiometry ratios showed the order of late succession stages forests (Quercus wutaishansea Mary and Pinus tabuliformis Carr.) > early succession stages forests (Betula platyphylla Suk. and Populus davidiana Dode) > artificial vegetation forests (Robinia pseudoacacia L. and Platycladus orientalis (L.) Franco). (2) The NRE and PRE of different tree species was 17.18%-43.34% and 27.13%-58.12%, respectively, with the order of late succession stages forests > artificial vegetation forests > early succession stages forests. The PRE were mostly higher than the NRE. (3) The NRE and PRE showed stronger relationship with leaves nutrient than with soil nutrient, and also showed stronger relationship with C:N:P stoichiometry ratios than with C, N and P concentrations. It indicated that N and P resorption was an important mechanism for typical tree species in the Ziwuling forest area to adapt to nutrient limitation, especially for the late succession stages forests. This can provide basis for vegetation restoration in the Loess Plateau.