It is known for its many multi-level waterfalls and colorful lakes, and was declared a UNESCO World Heritage Site in 1992.

Geography and climate

Jiuzhaigou lies at the southern end of the Minshan mountain range, 330 km north of the provincial capital of Chengdu. It is part of the Jiuzhaigou County (formerly Nanping County) in the Aba Tibetan Qiang Autonomous Prefecture of northwestern Sichuan province, near the Gansu border. Approximate coordinates are .

The valley covers at least 240 km², with some protection organizations giving the area as 600 to 720 km², with buffer zones covering an additional 400 to 600 km². Its altitude, depending on the area considered, ranges from 1,998 to 2,140 m (at the mouth of Shuzheng Gully) to 4,558 - 4,764 m (on Mount Ganzigonggai at the top of Zechawa Gully).

The climate is cool temperate with a mean annual temperature of 7.2 °C, with means of -1 °C in January and 17 °C in July. Total annual rainfall is 661 mm, 80% of which occurs between May and October.

History

The remote region was inhabited by various Tibetan and Qiang peoples for centuries, but was not officially discovered by the government until 1972. Extensive logging took place until 1979, when the Chinese government banned such activity and made the area a national park in 1982. An Administration Bureau was established and the site officially opened to tourism in 1984; layout of facilities and regulations were completed in 1987. The site was inscribed by UNESCO as a World Heritage Site in 1992 and a World Biosphere Reserve in 1997.

Since opening, tourist activity has increased every year: from 5,000 in 1984 to 170,000 in 1991, 160,000 in 1995, to 200,000 in 1997, including about 3,000 foreigners. Visitors numbered 1,190,000 in 2002. As of 2004, the site averages 7,000 visits per day, with a quota of 12,000 being reportedly enforced during high season. The Town of Zhangzha at the exit of the valley and the nearby Songpan County feature an ever-increasing number of hotels, including several polished five-stars.

Population

Jiuzhaigou takes its name from the nine Tibetan villages along its length. Few of them remain today, depending on what classifies as "a village inside the valley". The main agglomerations are Heye, Shuzheng and Zechawa along the main paths, plus Rexi and Heijiao in the smaller Zaru Gully. Maps also indicate villages named Jianpan, Panya and Guwa near the end of a small gully opposite Zaru. Finally, the Penbu, Panxing and Yongzhu villages lie along the road that passes through the town of Jiuzhaigou/Zhangza outside the valley.

In 1997, the permanent population of the valley was about 1000, made up of about 130 Tibetan and Qiang families. Due to the protected nature of the park, the residents are forbidden from agriculture activities and rely on government subsidies as well as tourism.

Ecology

Jiuzhaigou's ecosystem is classified as temperate broad-leaf forest and woodlands, with mixed mountain and highland systems. Nearly 300 km² of the core scenic area are covered by virgin mixed forests. Those forests take on attractive yellow, orange and red hues in the autumn, making that season a popular one for visitors. They are home to a number of plant species of interest, such as endemic varieties of rhododendron and bamboo.

Local fauna includes the endangered giant panda and golden snub-nosed monkey. Both populations are very small (less than 20 individuals for the pandas) and isolated. Their survival in is in question in a valley subject to increasing tourism. Jiuzhaigou is also home to approximately 140 bird species.