Sunday, September 30, 2012

Three Parallel Rivers Of Yunnan Protected Areas

Three Parallel Rivers Of Yunnan Protected Areas

Consisting of eight geographical clusters of protected areas within the
 boundaries of the Three Parallel Rivers National Park, in the mountainous 
 Northwest of Yunnan Province, the 1.7 million hectare site includes sections 
of the upper reaches of three of the great rivers of Asia: the Yangtze (Jinsha), 
Mekong and Salween run roughly parallel, north to south, through steep gorges
 which, in some places, are 3,000 meters deep and are bordered by glaciated 
peaks more than 6,000 meters high. The site is an epicentre of Chinese 
biodiversity. It is also one of the richest temperate regions of the world 
in terms of bio-diversity.

Justification for Inscription from UNESCO World Heritage Centre

Criterion (vii): Superlative natural phenomena or natural beauty and aesthetic
 importance The deep, parallel gorges of the Jinsha, Lancang and Nujiang are
 the outstanding natural feature of the site; while large sections of the three
 rivers lie just outside the site boundaries, the river gorges are nevertheless 
the dominant scenic element in the area. High mountains are everywhere, 
with the glaciated peaks of the Meili, Baima and Haba Snow Mountains 
providing a spectacular scenic skyline. The Mingyongqia Glacier is a notable
 natural phemonenon, descending to 2700 meters above the sea level from
 Mt. Kawagebo (6740 meters), and is claimed to be the gla cier descending
 to the lowest altitude for such a low latitude (28° N) in the northern 
hemisphere. Other outstanding scenic landforms are the alpine karst 
(especially the 'stone moon' in the Moon Mountain Scenic Area above 
the Nujiang Gorge) and the 'tortoise shell' weathering of the alpine
 Danxia.
Criterion (viii): The property is of outstanding value for displaying the 
geological history of the last 50 million years associated with the collision 
of the Indian Plate with the Eurasian Plate, the closure of the ancient Tethys
 Sea, and the uplifting of the Himalaya Range and the Tibetan Plateau. These
 were major geological events in the evolution of the land surface of Asia and
 they are on-going. The diverse rock types within the site record this history
 and, in addition, the range of karst, granite monolith, and Danxia sandstone 
landforms in the alpine zone include some of the best of their type in the 
mountains of the world.
Criterion (ix): The dramatic expression of ecological processes in the Three
 Parallel Rivers site has resulted from a mix of geological, climatic and 
 topographical effects. First, the location of the area within an active 
 orographic belt has resulted in a wide range of rock substrates from igneous
 (four types) through to various sedimentary types including limestones,
 sandstones and conglomerates. An exceptional range of topographical
 features-from gorges to karst to glaciated peaks-is associated with the
 site being at a “collision point” of tectonic plates. Add the fact that the
 area was a Pleistocene refugium and is located at a biogeographical
 convergence zone (i.e. with temperate and tropical elements) and the 
physical foundations for evolution of its high biodiversity are all present. 
Along with the landscape diversity with a steep gradient of almost 6000
 meters vertical, a monsoon climate affects most of the area and provides 
another favourable ecological stimulus that has allowed the full range of
 temperate Palearctic biomes to develop.
Criterion (x): Biodiversity and threatened species Northwest Yunnan is the
 area of richest biodiversity in China and may be the most biologically 
diverse temperate region on earth. The site encompasses most of the 
 natural habitats in the Hengduan Mountains, one of the world's most 
 important remaining areas for the conservation of the earth's biodiversity.
 The outstanding topographic and climatic diversity of the site, coupled 
with its location at the juncture of the East Asia, Southeast Asia, and Tibetan 
Plateau biogeographical realms and its function as a N-S corridor for the 
movement of plants and animals (especially during the ice ages), marks it
 as a truly unique landscape, which still retains a high degree of natural 
character despite thousands of years of human habitation. As the last 
remaining stronghold for an extensive suite of rare and endangered 
plants and animals, the site is outstanding.

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