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Saihanba was once a natural famous garden with abundant water grasses and dense forests, and was even called "Li Li Pine Forest" in Liao and Jin dynasties.During the Qing Dynasty, Saihanba was set up as the "Mulan Paddock" as a hunting place for the emperor, but due to the opening of the enclosure for reclamation during the Tongzhi period, the original forest began to degrade into wasteland and sand.Subsequently, the looting and logging of the Japanese invaders and successive mountain fires led to further destruction of the original forest.

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The former barren state of Saihanba area brought many inconveniences such as deterioration of ecological environment, reduction of agricultural and animal husbandry production, frequent natural disasters, decline of water and soil conservation capacity of river source area and social and economic impact. These problems not only affect the quality of life of local residents and economic development, but also pose a serious threat to the ecological security and sustainable development of the entire region.

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In 1962, the Chinese government decided to establish a mechanical forest farm in Saihanba and began large-scale afforestation work.

After decades of efforts, the builders of Saihanba Forest Farm have successfully created the world's largest artificial forest sea and restored the ecosystem combining forest, meadow and wetland.

Compared with the initial stage of the farm, the forest area increased by 3.8 times, the forest stock increased by 30.4 times, and the forest coverage rate increased from 11.4% to 82%

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The government encourages agriculture, animal husbandry and other development methods to coordinate with ecological protection, and promotes sustainable development models to avoid damage to the environment.

Each year, it can conserve water source, purify water quality of 284 million cubic meters, fix 860,300 tons of carbon, and release 598,400 tons of oxygen, which reflects the important value of Saihanba in ecological services.

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To understand the changes and protection needs of Saihanba ecosystem through scientific research, and provide a scientific basis for governance.

Strengthen publicity and education to the public, improve people's understanding and awareness of Saihanba protection, and form a good atmosphere for the whole society to participate in ecological protection.

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Saihanba Forest Farm has a high forest coverage rate and good ecological function. These forests absorb carbon dioxide and release oxygen, helping to slow climate warming and improve air quality. It is estimated that Saihanba Forest Farm adds 204,000 tons of carbon sequestration every year, and the accumulated oxygen released can breathe 29.33 million people for a year.

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The forest area in the forest farm reaches 1.12 million mu, the forest stock volume reaches 10.12 million cubic meters, and the annual growth increases the stock volume of 800,000 square meters. These rich forestry resources provide a solid foundation for the development of local forestry industry, and promote the development of wood, forest products and other related industries.