首都北京给世人的印象多是气势磅礴的古建筑、繁华热闹的现代商业区以及知了鸣叫下的四合院,很少有人会对北京的自然给予足够关注。实际上,由于西北、东北部分别被太行山、燕山环绕,海拔从最低仅20余米飙升到最高2303米,土地面积62%为山地,面积不大的北京地形复杂、生境多样,植物多样性丰富,是华北植物区系的典型代表。 Beijing is the capital of the world, most people are impressed with the magnificent ancient buildings, the bustling modern commercial area and the courtyard where the tweet is known. Few people will pay enough attention to Beijing’s nature. In fact, since the northwest and northeast are surrounded by Taihang Mountain and Yanshan Mountain respectively, the altitude has risen from a minimum of only 20 meters to a maximum of 2303 meters. 62% of the land area is mountainous and the area is small. The terrain of Beijing is complex, habitat diversity and rich plant diversity , Is a typical representative of the flora of North China.