Since the establishment of the provincial special economic zone in 1988, the country's largest special economic zone has gone through 34 years; It has been four years since the announcement of Hainan's gradual exploration and steady promotion of the construction of a free trade port with Chinese characteristics. Hainan was born and prospered because of reform and opening up. "When I came to Hainan, I kept hearing the word 'April 13'. Coincidentally, today, four years ago, I was in Hainan, giving the Hainan Special Economic Zone a new major responsibility and mission for reform and opening up." The day when the new horn of reform and opening up was sounded was the day when the general meeting to celebrate the 30th anniversary of the establishment of Hainan Province as a special economic zone was held. In 2022, when we come to Hainan again, the blueprints will be implemented one by one, and the development and changes in time are amazing. Walk in Hainan, from the sunshine of 18 degrees north latitude in Sanya, to the green ocean of 1867 meters above sea level in Wuzhishan, and then to the surging blue economy of 114.78 square kilometers in Yangpu Economic Development Zone. In 4 years, the most beautiful pictures were slowly unfolded. "During my work in Xiamen in the 1980s, I carried out a study on the economic and social development strategy of Xiamen from 1985 to 2000, and put forward the idea of developing an export-oriented economy and building Xiamen into a multi-functional special economic zone with free trade characteristics. I studied the issue of free trade port earlier and promoted the implementation of some policies in Xiamen." At that time, China's opening door had just opened. Today, reform and opening up are advancing in depth. The task of building a free trade port has been handed over to Hainan. 18 degrees north latitude: the story of light and heat "Focus on doing your own thing and go your own way wholeheartedly" On the afternoon of the 10th, the first stop of the investigation was Sanya. On the east side of Ningyuan River, the alluvial plain located at 18 degrees north latitude is full of light and heat. "In the past, this land was intended to be used for tourism development. In your speech in 2018, you asked to gather innovative elements. After that, you spent a lot of time on transformation and development." The construction will be started in 2019, with the layout of Nanfan technology and deep-sea technology. Here, the general secretary carefully studied the planning layout: "one based on temperature and one based on depth. The direction is well chosen." The small buildings, which are not very impressive, are in command and brewing a deep and quiet change. Academicians of the post-60s and college students of the post-90s and post-00s study under the same roof. Breeders of the new era come from the north and south of the river. Since the establishment of a national breeding base in the 1950s, for example, the old Nanfan people who migrate migratory birds have suffered the hardships of that year, "while being a farmer, they engage in scientific research" and "bow down to carry sacks and have a long way to return home". Seed is not only the key to China's food security, but also the "chip" of agriculture. "Seed breeding will be more comprehensive every year, and then it will be here." From simple breeding to the whole industry chain of seed industry, the sharing platform is also becoming more and more perfect. Academician Yang Weicai, who introduced the situation on site, vividly described that the seed industry has developed from 1.0 to 3.0. "I have always been concerned about Nanfan scientific research and breeding. I should make scientific plans to speed up the promotion and build Nanfan Silicon Valley to serve the whole country." Who will feed China was a difficult problem yesterday, and it is also a major issue that cannot be relaxed today and tomorrow. The general secretary talked about this matter: "only by holding China's seeds tightly with his own hands can we stabilize China's rice bowl and achieve food security. If seed sources are to be controlled independently, seed industry science and technology must be self-reliance and self-improvement." On the same field, there are generations of hopes. The past is vivid. "We should carry forward the spirit of the older generation of scientific and technological workers. Comrade Yuan Longping is a model. In fact, there are many people like him who work hard, work silently, grind a sword in ten years and work for a long time." Yuan Longping, the father of hybrid rice, Xie Huaan, a plant genetics and breeding scientist, Cheng Xiangwen, an expert in maize breeding, Li Denghai, the father of compact hybrid maize in China, Guo Sandui, the father of insect resistant cotton in China, and Wu Mingzhu, the king of melon... All have enthusiasm and leave footprints here. At the end of the visit, the general secretary was about to get on the bus and leave. He said to academician Yang, "the burden is very heavy. Success!" A building not far away is Sanya Institute of Oceanography, Ocean University of China. Air, sky, earth and sea are capable of galloping. Immersed in scientific research, they reported to the general secretary the deep-sea forces promoting national rejuvenation. "Deep sea No. 1" operation platform is a "boat" on the vast sea. During the video connection, the banner of "Bihai Danxin energy serving the country" hung high, indicating the hot blood of deep-sea people. "I have always been concerned about the ocean". Later, after working in the Central Committee, he proposed to build a maritime power. "Using our own equipment to develop our oil and gas, improve our energy self-sufficiency rate and ensure our energy security. This is a matter of strategic significance." "The manufacturing level is reflected in marine equipment. China must grasp the manufacturing industry in its own hands. A large country with a population of more than 1.4 billion cannot rely on others. We can only rely on ourselves to carry forward the spirit of self-reliance." Under the changing situation of a century, food security and energy security play an important role. The strategic determination of "relying on oneself" is a clear message delivered on the first day of the investigation of the "experimental field of reform and opening up". 1867 meters above sea level: the story of man and nature "In the past, I returned empty handed in Baoshan, but now I am fruitful in Baoshan" "Who embellishes the clouds and the moon? The sky is clear and the sea is clear." Hainan Tropical Rain Forest National Park is lush with refreshing green. Looking up at towering ancient trees, the sun jumped among the dense leaves, and the mottled trunk witnessed the endless flow of time. "With one kilometer of travel, the general secretary's pace is very slow." The park commentator in charge of the introduction has a deep memory of scenes. "He stops from time to time to observe the surrounding trees and listen to the voice of nature." "Sky garden" competes for wonders, including bird's nest, butterfly tree, root holding stone, hanging in rain forest... There are natural instruments and charming literary show. "Hainan tropical rain forest does not belong to Hainan alone, but to the people of the whole country, the earth and a national treasure." After the 18th National Congress of the Communist Party of China, ecological protection with a great view of history has become the top priority of a large country. The reform of the national park system is on the agenda: the Third Plenary Session of the 18th CPC Central Committee first proposed the establishment of the national park system, launched the pilot in 2015, and officially established the first batch of five national parks in 2021. "In those days, steel was heavily refined and the trees were cut down. Later, some places did not hesitate to pay for economic growth. The fate of nature is closely related to mankind. We are doing this for history and the nation. We should jump out of Hainan to see this work." Maona village, Shuiman Township, a Li village deep in the mountains. There is a national park boundary in the village. In the park, there is the forest field of the village; Outside the garden, there are villagers' houses. The villagers call themselves "park people". It used to be poor. When the province was founded, 17% of Hainan's population did not have enough food and clothing, and the central mountainous areas were even "slash and burn farming". For many years, the mountain that can't go out has blocked the way to get rich. The deep memory of starvation makes the villagers who have lived a good life still have to leave a "Hemu warehouse" beside the village road to hoard food. "There are many mountains and less arable land. Now we are developing the economy under the forests. Forest fruit, forest tea, forest poultry, forest livestock, green water and green mountains are the golden and silver mountains." Local responsible comrades answered. The general secretary profoundly pointed out: "green water and green mountains are reservoirs, grain depots, money depots and carbon depots." The villagers are discussing farming in the village pavilion. "Hello, General Secretary! Welcome to our village." "Come on, let's sit together and introduce ourselves." "My name is Wang Qiwang. I'm a college student returning home to start a business." A tanned young man took the lead. His experience of returning to his hometown as a farmer has infected many young people in four neighbors and eight townships over the years. "My name is Wang Jinyou. I'm an ecological forest ranger in the village. I like to go into the mountains and listen to birds singing best. Green water and green mountains are also my job." "Have you found any Gibbons?" The general secretary was thinking about what he had heard about the endangered gibbon in Hainan Tropical Rain Forest National Park, "there are 36 more gibbons." "How about the income from forest protection?" "Who pays the money?" "Wang Qiongxiang, the leader of getting rich, say something." The general secretary remembered that some villagers mentioned the shy poverty relief household in their speeches and encouraged her to say. "Children go to school and worry every day. In 2013, my family was listed as a poor family. I don't want to go back to the old poor days. With the help of the party and the government, I planted watery big leaf tea..." facing the eyes of the general secretary, as soon as the topic opened, Wang Qiongxiang said more and more vigorously, "I bought a car last year." Hearing this, the villagers laughed. The general secretary shared her joy, kindly asked whether she bought a car or a van, and talked about the changes in the village from this topic. "I also led 21 villagers out of poverty. The country is rich and the people are strong, and our days are getting better and better!" As soon as the voice fell, the villagers clapped. Villager Wang Zhengzhu said that with the help of the Rural Revitalization team, he went to night school, engaged in breeding and planted tea, and became a member of the team of the two village committees. Gao Li is the leader of the Rural Revitalization team of Shuiman Township and the first Secretary of Maonao village. "We have just set up a village enterprise called 1867 construction service company," he reported 1867 meters, which is the altitude of Wuzhi Mountain. With their love for the mountains, the villagers express their deep feelings in this simple way. "This village is really thriving. Poverty alleviation and revitalization should be connected