Jiuzhaigou National Park is a nature reserve in the north of Sichuan, a province in south western China. It is known for its many multi-level waterfalls and colorful lakes, and was declared a UNESCO World Heritage Site in 1992. It belongs to the category V (Protected Landscape) in the IUCN system of protected area categorization.

Jiuzhaigou National Park
Source: 1


Jiuzhaigou National Park
Source: 1

Via wikipedia.org
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Alex E

Ecoclimax is defined by Odum (1969) as the culmination state after a succession in a stabilized ecosystem in which maximum biomass (or high information content) and symbiotic function among organisms is kept per unit of available energy flow.