The world’s largest green initiative turned 40 years this year. The national voluntary tree-planting campaign,     1     (launch) in China in 1981, has seen volunteers plant 76 billion trees across the country since then.

March 12 has been a green-letter day,     2     trees are planted and other activities are held nationwide, boosting the campaign. According to satellite monitoring results, the increase of vegetation in China accounted     3     25 percent of the world’ s total new greenery.

The national campaign has made outstanding     4     (contribute) to the global response to climate change, low carbon development and emission (排放) reduction. It has strengthened desert control and ecological governance. The campaign has become an important way for the Chinese     5     (promote) the concept of ecological progress, boosting common understanding and joint efforts.

However, despite the progress, China is still a country with a low forest cover. Though the green initiative     6     (increase) the forest cover from 12 percent to 23. 04 percent so far, it is still far from     7     (create) the beautiful ecological environment that people are demanding today.

This year marks the beginning of a new journey toward the second centenary goal of     8     ( full) building a modern socialist country in all aspects. Green development and ecological progress     9     (be) the focus of the modernization drive. Therefore, in the 14th Five－Year Plan (2021－2025) period, the campaign will continue to build     10     beautiful China and benefit all humanity.

China on October 12     1     （official）announced the first group of national parks. Home to nearly 30 percent of the key terrestrial wildlife species found in China, they cover     2     protected land area of 230,000 square km.

The establishment of the first batch of national parks is a practical move by China     3     （strengthen）its effort to promote natural ecological protection and conserve biodiversity.

The Three-River-Source National Park     4     （locate）on the Qinghai-Tibet Plateau—known as the world's "third pole". It protects the source of the Yangtze, Yellow and Lancang rivers. The Giant Panda National Park protects the major habitats of 70 percent of the country's wild giant pandas.     5     （cover）an area of 4,269 sq km, the Hainan Rainforest National Park is home to China's largest rainforest and the Hainan gibbon. The Wuyi Mountain National Park experimental area is the only park in China     6     is listed as a UNESCO cultural and     7     （nature）heritage site. It is a reflection of China's environmental protection principle, which emphasizes coexistence and sustainable     8     （develop）between humans and nature.

Different from parks in the general sense that are only for sightseeing and leisure, commercial activities are banned in the national parks, which are all put     9     the control of the national rules for ecological protection, and subject to the     10     （strict）protection in history.

Years ago, the authors conducted human-wildlife conflict surveys in the Tibet Autonomous Region’s counties,     1     (locate) in the TAR’s remote Chang Tang region. These surveys showed     2     previously undocumented and growing problem of human-snow leopard conflict. Next, snow leopard telephone interviews were conducted with Tibet Forestry Bureau staff,     3     (result) in an additional new conflict and sighting location records. This new location information, together with records provided by other observers,     4     (collect) to make a snow leopard distribution (分布) map.

This effort greatly expanded knowledge of the snow leopard’s distribution in this region,     5     remains one of the least understood of the snow leopard’s key range areas. New knowledge on snow leopard in the Chang Tang will help identify human-snow leopard conflict hot spots and influence design of human-snow leopard conflict relief and conservation strategies for northwest Tibet. Nevertheless, much field work will also be required     6     (describe) snow leopard distribution in the Chang Tang.

Importantly, in the past few years, a number of major transportation infrastructure (基础设施) projects     7     (make) the Chang Tang more accessible. This has led to a     8     (great) increased number of tourists visiting western Tibet, Mt. Kailash and Lake Manasarovar     9     particular. All these developments have a large potential to cause disturbance to snow leopards and their prey species, including influencing their movements     10     destroying their habitat.