At the press conference on the construction practice of Sanjiangyuan National Park, the Sanjiangyuan National Park Management Bureau announced on the 28th that through comprehensive measures, the diversity, stability, and sustainability of the Sanjiangyuan ecosystem have been comprehensively improved. The forest and grass coverage rate has reached over 74%, and the vegetation coverage in the black soil beach treatment area has increased from less than 20% to over 80%. In 2020, the comprehensive vegetation coverage of grassland reached 61.9%, an increase of 4.6 percentage points from 2015, and the wetland vegetation coverage has remained stable at around 66%. Sanjiangyuan is known as the "Water Tower of China" because it originates from the top 10 longest rivers in the world, namely the Yangtze River, Yellow River, and Lancang River. Sanjiangyuan National Park is located in the core area of Sanjiangyuan, with a total area of 190700 square kilometers, making it the largest national park in China. From the late 1980s to the beginning of this century, due to various factors such as global climate change, the glaciers and snow capped mountains in the Three Rivers Source have shrunk, wetlands and lakes have decreased, grassland vegetation has degraded, water conservation capacity has sharply decreased, and biodiversity is threatened. In order to effectively resolve the ecological crisis of the Three Rivers Source, Qinghai established the Three Rivers Source Provincial Nature Reserve in 2000. In 2003, the provincial-level nature reserve was promoted to a national level nature reserve. As of the end of 2018, 24.4 billion yuan has been invested to carry out the long-term, large-scale, and systematic project of ecological protection and restoration in the first and second phases of the Three River Source. The trend of ecological deterioration in the Three River Source has been preliminarily reversed Sun Lijun, member of the Party Committee and Deputy Director of the Sanjiangyuan National Park Management Bureau, introduced that after its establishment on June 7, 2016, the bureau has invested 8.661 billion yuan to implement a number of infrastructure construction projects such as patrol roads and environmental education, as well as ecological protection and restoration projects such as black soil beach control, desertification land prevention and control, degraded grassland improvement, wetland protection, and pest control. Rare snow leopards, leopards, and Eurasian otters frequently appear, while white lipped deer, wild yaks, and Tibetan wild donkeys frolic at the source of rivers. Birds of prey such as falcons, black necked cranes, and golden eagles soar in the blue sky. Internet famous elves such as rabbits, leopards, and Tibetan foxes breed and thrive on grasslands. The blue waves at the source of the Three Rivers ripple, recreating the beautiful scenery of thousands of lakes. The 'Chinese Water Tower' is even stronger and more abundant Sun Lijun said, "We will continue to implement the integrated protection and restoration project of mountains, waters, forests, fields, lakes, grasses, sands, and ice ecosystems, explore the transformation channel of the 'two mountains', and continuously achieve the strategic goal of high-level protection and high-quality development of the Sanjiangyuan National Park