"Three hundred miles in the sky, a lush green." Located in Jiange County, Sichuan Province, the Cuiyun Corridor section of Gushu Road has more than 12,000 cypress trees planted in more than 300 miles. On July 25, General Secretary Xi Jinping came here to walk along the ancient road to inspect the growth of thousand-year-old cypress, inquire in detail about the situation of planting cypress and cypress in history, and think about how to "consolidate and develop the achievements of ecological civilization construction in the new era". Since the beginning of the new era, we have been deepening our understanding of the regularity of ecological civilization construction in the practice of doing a good job in the construction of ecological civilization. At the National Conference on Ecological and Environmental Protection, General Secretary Xi Jinping profoundly expounded on the five major relationships that need to be handled to promote the construction of ecological civilization on the new journey, of which the first is "the relationship between high-quality development and high-level protection". Nowadays, the concept of "lucid waters and lush mountains are invaluable assets" has become the consensus and action of the whole party and the whole society, and has become an important part of the new development concept. The report of the 20th National Congress of the Communist Party of China proposed: "Promoting green and low-carbon economic and social development is the key to achieving high-quality development. "This shows that high-quality development and high-level protection are complementary and mutually reinforcing. Qinling is a good example. A few years ago, this majestic mountain range of "harmony between the north and the south, and the world by the world" was once disturbed, especially the villas built in violation of laws and regulations, like scars and stinging people's hearts. After five years of comprehensive management of the ecological environment, the ecological status of the Shaanxi section of the Qinling Mountains has been evaluated as "excellent" and "excellent" for the first time, and the green development path of industrial ecology and ecological industrialization has been continuously extended. It can be said that the relationship between ecological environmental protection and economic development is dialectical unity, and the success or failure of ecological environmental protection depends in the final analysis on the economic structure and economic development mode. In the decade of the new era, China's energy intensity has dropped by 26.4%, carbon dioxide emissions per unit of GDP have decreased by 34.4%, and the total economic output has jumped to 120 trillion yuan while the quality of the ecological environment has improved significantly and the energy intensity has been declining. Practice has proved that high-level protection is an important support for high-quality development, and high-quality development that prioritizes ecology and is green and low-carbon can only be achieved by relying on high-level protection. Throughout the history of the development of human civilization, ecological prosperity leads to civilization prosperity, and ecological decline leads to civilization decline. Chinese modernization is the modernization of harmonious coexistence between man and nature, and we must plan for development from the perspective of harmonious coexistence between man and nature. In Changting County, Fujian Province, soil erosion was once serious. Comrade Xi Jinping has visited Changting for investigation five times and made important instructions and instructions many times. The construction of terraced fields, damming and silting, and consolidating ditches to protect soil, one by one the Maotong Mountains have become "Huaguo Mountain", and the experience of Changting is now promoted to the whole country. In March 2021, when he inspected Fujian and learned that Changting had become an oasis-like beautiful home, the general secretary recalled emotionally: "I told you that I invested money in ecology, and it doesn't seem like raising chickens and laying eggs like development and construction, but this matter must be grasped." In the end, he raised a golden rooster and laid a golden egg. This shows that only by taking the carrying capacity of resources and environment as the premise and foundation, and consciously limiting economic activities and human behavior to the limits that natural resources and the ecological environment can bear, can we promote development in the green transformation to achieve effective qualitative improvement and reasonable quantitative growth. Looking at the deeper level, achieving a high level of protection means a comprehensive green transformation of economic and social development, which will continue to shape new momentum and new advantages for development, and accelerate the formation of an industrial structure with high technology content, low resource consumption and low environmental pollution. In Yibin, Sichuan, the Minjiang River and the Jinsha River meet here. Standing at the mouth of the Sanjiang River and looking north, within 5 kilometers was once Yibin Yanjiang Industrial Zone, and the Yibin Tianyuan Chemical Plant, which was founded in 1943, was once less than 100 meters away from the Yangtze River shoreline. Today, with the rapid development of the newly established Sanjiang New Area, Tianyuan Chemical has extended its industry to new chemical materials and new energy battery materials. In the process of protection and development in protection, the Yangtze River, the mother river that was once "not lightly ill", now has a new look, the "chemical encirclement of the river" has become green on the tidal flat bank, the wharf of "illegal sand mining" is now swaying with reeds, the "smiling elf" Yangtze finless porpoise is back, and new forms of business and new kinetic energy have developed! It can be seen that grasping protection is not to develop, but to take green as the guide to realize the transformation and upgrading of the industrial structure. On the new journey, we must accelerate the green and low-carbon transformation of the development mode, adhere to green and low-carbon development as a fundamental policy to solve ecological and environmental problems, accelerate the formation of green production methods and lifestyles, cultivate a green background for high-quality development, greatly improve the degree of economic greening, and continue to enhance the potential and stamina of development. While continuing to write a miracle of rapid economic development and long-term social stability that is rare in the world, China has handed in a "green answer sheet" that satisfies the people and attracts the attention of the world. "Only by paving the background of green development can we make great progress in the future." Looking ahead, China's path of green development will become broader and broader, presenting the world with China's answer sheet that development and protection complement each other.