北京是一座历史名城,自古以来森林资源就相当丰富。由于2000多年的开发建设,历朝历代地面上的古建筑群及帝王陵园用去了大量的木材,导致北京市的原始森林面积几乎消耗殆尽,残存无几。随着近年来全民环境保护意识的不断提高,自然保护区的建设已成为各区 Beijing is a historic city, with rich forest resources since ancient times. Due to the development and construction of over 2,000 years, the ancient buildings and imperial mausoleums on the ground of various Dynasties and Dynasties were heavily planted with timber, resulting in the area of ​​virgin forest in Beijing being almost depleted. With the continuous improvement of awareness of environmental protection in recent years, the construction of nature reserves has become a