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Jiuzhaigou

Jiuzhaigou is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Jiuzhaigou rather than just read about it. In short: Jiuzhaigou ([tɕjòʊ.ʈʂâɪ.kóʊ] ; Chinese: 九寨沟; pinyin: Jiǔzhàigōu) is a nature reserve and national park located in the north of Sichuan Province in southwestern China. A long valley running north to south, Jiuzhaigou was inscribed by UNESCO as a World Heritage Site in 1992 and a World Biosphere Reserve in 1997.

Jiuzhaigou — main illustration
Jiuzhaigou — illustration

Key takeaways

  • Jiuzhaigou belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Jiuzhaigou to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Jiuzhaigou from memory before moving on to harder problems.

Reference excerpt

Jiuzhaigou ([tɕjòʊ.ʈʂâɪ.kóʊ] ; Chinese: 九寨沟; pinyin: Jiǔzhàigōu) is a nature reserve and national park located in the north of Sichuan Province in southwestern China. A long valley running north to south, Jiuzhaigou was inscribed by UNESCO as a World Heritage Site in 1992 and a World Biosphere Reserve in 1997. It belongs to the category V (Protected Landscape) in the IUCN system of protected area categorization. The Jiuzhaigou valley is part of the Min Mountains on the edge of the Tibetan Plateau and stretches over 72,000 hectares (180,000 acres). It has an altitude of over 4800 meters and is composed of a series of diverse forest ecosystems. It is known for its many multi-level waterfalls, colorful lakes, and snow-capped peaks. Its elevation ranges from 2,000 to 4,500 metres (6,600 to 14,800 ft). The Jiuzhaigou area borders the Minshan Garna Peak in the south, and the Huanglong Scenic Area is to Jiuzhaigou's north. It originates from the Baishui River area, one of the headwaters of the Jialing River and a part of the Yangtze River system.

History Jiuzhaigou (literally "Nine Settlement Valley") takes its name from the nine Tibetan settlements along its length. The remote region was inhabited by various Tibetan and Qiang peoples for centuries. Until 1975 this inaccessible area was little known. In 1975, famous forestry scientist Wu Zhonglun conducted a comprehensive survey of Jiuzhaigou. He was deeply moved, saying "I have visited several countries in Europe and America, but I have never seen such breathtaking natural beauty. It must be well protected." He then wrote to the Sichuan Provincial People's Government and the Sichuan Provincial Forestry Department, urging local authorities to protect the natural landscape and prohibit the indiscriminate logging of trees. The Sichuan Provincial Forestry Department promptly issued a notice stating that logging must be restricted beyond 200 meters in the Zechawa and Rize gullies of Jiuzhaigou. The Sichuan Provincial Government subsequently prioritized the protection of Jiuzhaigou, directing relevant departments and research institutes to develop a detailed conservation plan and completely halting logging in the valley. In 1980, the Jiuzhaigou Nature Reserve was established. 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. The tourism area is classified as a AAAAA scenic area by the China National Tourism Administration.

Visitor numbers 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. In 2004, the site averaged 7,000 visits per day, with a quota of 12,000 being reportedly enforced during high season. In 2024 the site welcomed 5.11 million tourists, with over 30,000 per day during the peak season during the end of July and start of August. A limit of 41,000 daily visitors is enforced by requiring timed tickets. The town of Zhangzha at the exit of the valley and the nearby Songpan County feature an ever-increasing number of hotels, including several luxury five-stars, such as Sheraton. The site has become more accessible with mass transport due to the opening of the Sichuan–Qinghai railway and Jiuzhai Huanglong Airport. Developments related to mass tourism in the region have caused concerns about the impact on the environment around the park.

2017 earthquake In August 2017, a magnitude 7.0 earthquake struck Jiuzhaigou County, causing significant structural damage. The authorities closed the valley to tourists until March 3, 2018, before reopening the park with limited access. The Jiuzhaigou earthquake in Sichuan, China had a significant impact on the scenic area. The earthquake also resulted in the damage and breakage of two natural dams, namely the Nuorilang Waterfall dam and the Huohua Lake dam. The Nuorilang Waterfall suffered damage due to its initial low stability and topographic effects. The dam was composed of poor material with low mechanical strength, making it prone to rockfalls even during non-earthquake periods. The nearly vertical structure of the dam amplified the seismic influences at its upper part, increasing the likelihood of deformation and collapse. The Jiuzhaigou earthquake caused the Huohua Lake dam to break. After the dam broke, the water discharge increased from the normal level of 9.3 m3/s to a maximum of 21.5 m3/s. As a result, the water level rapidly descended, leading to collapses along the dam.

Population Seven of the nine Tibetan villages are still populated today. The main agglomerations that are readily accessible to tourists are Heye, Shuzheng and Zechawa along the main paths that cater to tourists, selling various handicrafts, souvenirs and snacks. There is also Rexi in the smaller Zaru Valley and behind Heye village are Jianpan, Panya and Yana villages. Guodu and Hejiao villages are no longer populated. Penbu, Panxing and Yongzhu villages lie along the road that passes through the town of Jiuzhaigou/Zhangza outside the valley. In 2003, the permanent population of the valley was about 1,000 comprising 112 families, and due to the protected nature of the park, agriculture is no longer permitted so the locals now rely on tourism and local government subsidies to make a living.

Geography and climate

… excerpt ends here. Continue reading the full article.

Illustrations

Jiuzhaigou illustration
Jiuzhaigou illustration
Jiuzhaigou illustration
Jiuzhaigou illustration
Jiuzhaigou illustration

Worked examples

Example 1 — a first encounter with Jiuzhaigou

Start with the simplest possible case. Write down what Jiuzhaigou claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Jiuzhaigou before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Jiuzhaigou ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Jiuzhaigou

In research
Jiuzhaigou appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Jiuzhaigou in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Jiuzhaigou is common in secondary-school and first-year university syllabi. It links to neighbouring topics AAAAA-rated tourist attractions, Biosphere reserves of China, Geography of Sichuan, so understanding it makes those chapters shorter.
In everyday life
Look for Jiuzhaigou outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Jiuzhaigou in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Jiuzhaigou means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Jiuzhaigou out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Jiuzhaigou in simple terms?

Jiuzhaigou ([tɕjòʊ.ʈʂâɪ.kóʊ] ; Chinese: 九寨沟; pinyin: Jiǔzhàigōu) is a nature reserve and national park located in the north of Sichuan Province in southwestern China. A long valley running north to south, Jiuzhaigou was inscribed by UNESCO as a World Heritage Site in 1992 and a World Biosphere Rese…

Why does Jiuzhaigou matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Jiuzhaigou?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Jiuzhaigou.

Tags

  • AAAAA-rated tourist attractions
  • Biosphere reserves of China
  • Geography of Sichuan
  • Landforms of Sichuan
  • National parks of China
  • Old-growth forests
  • Tourist attractions in Sichuan
  • Valleys of China
  • World Heritage Sites in China

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