In the Kubuqi Desert in Ordos City, Inner Mongolia Autonomous Region, rows of photovoltaic panels are neatly arranged, shining like a blue canvas in the sand sea. However, in the past, 'yellow sand covers the sky and birds have no resting trees' was people's impression of this sandy sea. The Kubuqi Desert is the seventh largest desert in China, located in the northern part of Ordos City, Inner Mongolia. It is approximately 400 kilometers long and 50 kilometers wide at its widest point, with a total area of about 14100 square kilometers. At present, a "photovoltaic Great Wall" sand prevention and control scene is unfolding in the Kubuqi Desert. It is planned to build a "blue sand prevention zone" with photovoltaic panels on the south bank of the Yellow River and the northern edge of the Kubuqi Desert, about 400 kilometers long and an average width of about 5 kilometers, by 2030. At the construction site of the Shuofang New Energy Base project in the Kubuqi Desert, hundreds of bulldozers shuttle back and forth on 30000 acres of mobile sand dunes. Workers level the sand dunes with a drop of up to 70 meters to a drop of no more than 5 meters by digging and filling. The project is located on the west side of the Kubuqi Desert, with a total investment of approximately 11.5 billion yuan and a planned photovoltaic installed capacity of 13GW. It is only 5 kilometers away from the nearest point to the Yellow River. Li Jinyu, the on-site person in charge of the Shuofang New Energy Base project in Hangjin Banner, said: "The overall construction period of the project is about 3 years, divided into three phases for construction, covering an area of about 487000 acres, and is the largest single photovoltaic base in the northwest region. In the future, this will become a windproof and sand fixing 'city wall' on the banks of the Yellow River." In the leading photovoltaic power generation application base in Dalat Banner, dozens of kilometers away, photovoltaic panels are connected together, and the dark blue 'Photovoltaic Great Wall' shines brightly. Li Kai, Director of the Administrative Approval Office of Dalate Banner Energy Bureau, introduced that the Dalate Banner Photovoltaic Power Generation Application Leading Base has been under construction since 2017, consisting of 196000 photovoltaic panels. Currently, all of them have been completed and put into operation, generating up to 2 billion kilowatt hours of "green electricity" annually, saving 680000 tons of standard coal annually, and reducing carbon dioxide emissions by about 1.65 million tons and dust emissions by 450000 tons annually. In late autumn, many grasslands in Inner Mongolia have turned yellow, while vegetation such as poplar, alfalfa, and oats in the leading photovoltaic power generation application base in Dalat Banner are still thriving. Occasionally, small animals can be seen shuttling under the photovoltaic panels, bringing vitality and hope to this barren desert. The integration of desertification control and desert photovoltaic industry has broad prospects. Photovoltaic panels not only produce green electricity, but also have the function of preventing and fixing sand. In addition, we have utilized innovative models of on board power generation, under board restoration, and inter board planting to control a desert area of 50000 acres Li Kai said. The most scarce resource in the desert is water. In order to solve the water problem, a 500000 cubic meter reservoir called "Moon Lake" has been built in the leading photovoltaic power generation application base in Dalat Banner. The wastewater generated by nearby coal mines is treated to meet standards and transported here. Then, the plants under the photovoltaic panels are irrigated through drip irrigation, allowing the greenery to continue to extend here. Photovoltaics themselves can achieve desertification control, and at the same time, the benefits of photovoltaics can also contribute to desertification control. After implementing photovoltaic desertification control, Dalate Banner prioritizes recommending surrounding farmers and herdsmen to participate in the project, allowing them to increase their income and become rich through various means such as renting sandy land, installing and cleaning photovoltaic panels, and participating in planting and breeding projects. It is expected that by 2030, the installed capacity of new energy in Dalate Banner will reach 37 million kilowatts, with a comprehensive management area of 2.92 million acres, achieving synergistic efficiency in ecological, social, and economic benefits. Wang Ming is a villager from Pingyuan Village, Shulinzhao Town, Dalate Banner. Since the establishment of the leading photovoltaic power generation application base, his life has undergone many changes. He said, "In 2017, I contracted the transfer of farmland to a photovoltaic base and found daily maintenance work at the photovoltaic power plant. My monthly salary income is more than 5000 yuan. The photovoltaic base not only generates electricity, but also controls the desert, and can provide income for us farmers and herdsmen, which is welcomed by us