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老君山自然保护区位于云南东南部紧靠中越边境的马关、麻栗坡两县交界处,在北纬22°54′—22°58′和东经104°34′—104°42′之间。区内最高峰海拔2579米,较低河谷为南温河,海拔仅为600米,相对海拔高差达1979米。母岩主要为白垩纪花岗岩。植被类型有季风常绿阔叶林、山地苔藓常绿阔叶林和山顶苔藓矮曲林等。 由于该地区紧靠中越边境,因此,自1986年云南省人民政府批准成立老君山自然保护区以来,较少有人对该保护区进行全面的植物考察。至今,对于大多数植物学工作者来说,老君山那丰富而独特的植物资源仍蒙着神秘的面纱。
The Laojunshan Nature Reserve is located in the southeastern part of Yunnan at the junction of the two counties of Maguan and Malipo close to the Sino-Vietnamese border, between latitude 22 ° 54’-22 ° 58’N and longitude 104 ° 34’-104 ° 42’E. The highest peak in the region 2579 meters above sea level, the lower valley is the South River, elevation is only 600 meters, the relative elevation of 1979 meters. The parent rock is mainly Cretaceous granite. Vegetation types are monsoon evergreen broad-leaved forests, mountain moss evergreen broad-leaved forests and hilltop moss dysentrine. Since the area is close to the border between China and Vietnam, since the People’s Government of Yunnan Province approved the establishment of the Laojunshan Nature Reserve in 1986, few people conducted a comprehensive plant inspection of the reserve. To date, the rich and unique plant resources of Laojunshan are still mysteriously veiled for most botanists.