• 柞木国家二级珍贵树种,是中国东北林区主要的次生林树种。

    Quecusmongolica:the second class nation protect plant. main species in Northeast china.

    youdao

  • 并从生境种类组成演替等方面论述东北林区草地主要特征

    The characteristics of the environment, composition and dynamics of the grassland was discussed.

    youdao

  • 并从生境种类组成演替等方面论述东北林区草地主要特征

    The characteristics of the environment, composition and dynamics of the grassland was discussed.

    youdao

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