Comparison of species diversity between Larix gmelini pure forest and Larix gmelini-Betula platyphylla mixed forest in Daxing'an Mountains

摘要

Based on the investigation data about the species diversity in Daxing'an Mountains, the difference of species diversity in- dexes between Larix gmelini forest and Larix gmelini-Betula platyphylla forest was analyzed by the Simpson index (D), Shannon- Wiener index (H), Pielou index (J_sw & J_si), Alatalo index (E_a) and Species richness indx (S). The result showed that the species di- Versity index of larix gmelini-Betula platyphylla forest was much higher than that of Larix gmelini forest in this region.