Major tree species found here include conifers, such as Korean pine, larch and Olga Bay larch, and coniferous-broadleaf trees such as white birch, oak, willow, elm and Northeast China ash.

• 面积35万多平方公里的东北平原是中国第一大平原，大部分是黑色沃土，盛产小麦、玉米、大豆、高粱、亚麻和甜菜。华北平原大多是褐色土壤，土层深厚，农作物有小麦、玉米、谷子、棉花等。