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At the foot of the mountain stands the largest temple in southern China, the Grand Temple of Mount Heng (Nanyue Damiao), which is the largest group of ancient buildings in Hunan Province.
Mount Heng belongs to a humid subtropical climate zone, characterized by ample sunlight and water resources, with mild winters and summers that are not excessively hot, along with abundant rainfall. The climate on Mount Heng shows distinct vertical variations, with an average temperature decrease rate of 0.59°C per 100 meters.[1]
The Nanyue Mount Heng Nature Reserve was established on May 9, 1984, as a provincial-level nature reserve[2], and in 2005, it was successfully upgraded to a national nature reserve.[3]
Climate data for Mount Heng, elevation 1,266 m (4,154 ft), (1991–2020 normals, extremes 1981–2010)
The vegetation on Mount Heng exhibits elevation zones. Below an altitude of 800 meters lies the subtropical evergreen broad-leaved red soil zone, while above 800 meters are dwarf forests, shrublands, and grassland yellow-brown soil zones. The forest coverage rate reaches 67%, with a rich distribution of rare plant and animal species. The Nanyue Arboretum has been established here.
In 1954, experts discovered two wild velvet soapberry trees in the primary secondary forest near Guangji Temple. In 2012, two more wild velvet soapberry trees were found there, making these the only four remaining in the world[4]. In 2013, experts from the Nanyue Mount Heng National Nature Reserve discovered two ancient wild yews, estimated to be over a thousand years old, in Shuikou Village, Longfeng Township, Nanyue District[5].
Fauna
In 2004, law enforcement officers confiscated a long-eared owl in a farmers’ market; this species had been extinct in Hunan Province for over a decade, and it was caught on Mount Heng[6]. In 2013, a group of tourists spotted a silver pheasant, a nationally protected animal, in the Nanyue Mount Heng area[7].
Robson, James (2009). Power of place : the religious landscape of the Southern Sacred Peak (Nanyue) in medieval China. Harvard UP. ISBN978-0-674-03332-0.