Between the ridges and valleys of Yan'an Mountain in Shaanxi Province, there are rows of apple trees in order. The picking work has been basically completed, and the villagers are busy fertilizing, cleaning the garden, and spraying medicine for the apple trees to prepare for the harvest next year. The climate, light, latitude and altitude in northern Shaanxi are very suitable for the development of apple planting. In addition to the continuous development of drip irrigation technology, dwarfing planting technology, fruit selection production line, etc., they can be sold on the spot and have a good market. It can be said that to vigorously develop apple planting industry is the best and most suitable industry, which has a great future. Liu Runxi, a villager who lives in Nangou Village, Gaoqiao Town, Ansai District, has planted 16 mu of apples this year. High quality fruits and secondary fruits have sold more than 40,000 jin, and there are still 30,000 jin of high-quality fruits in the warehouse. The price has just been negotiated. More than 70,000 jin of apples can be sold for 250,000 yuan in total, with a net income of 200,000 yuan. "I used to grow only corn and potatoes, and my annual income was less than ten thousand yuan." Liu Runxi said. In the past, Nangou Village was a typical poor mountain village with low land utilization rate and weak industrial foundation. In 2013, Yan'an City suffered heavy rainfall, and the post disaster reconstruction of poor Nangou Village was very difficult, so a "backbone" was urgently needed. In 2014, the villagers invited Zhang Runsheng, a "talent for getting rich" who had worked abroad for many years, to return to the village to lead them to rebuild their homes and get rid of poverty. Zhang Runsheng gave up his business, followed the major strategic policy guidelines such as returning farmland to forests, poverty alleviation and rural revitalization, and led the villagers of Nangou Village to strengthen ecological governance while developing the characteristic industry of apple planting. Now, the apple planting in Nangou Village has grown from a few trees to more than 2000 mu, and has been sold to more than 40 cities in China, such as Beijing, Shanghai and Tianjin. Zhang Guanghong, a cadre who has been in Nangou Village for 11 years, introduced that, in addition to apple planting, the party branch of Nangou Village also led the villagers to plant fruits and vegetables such as cherries, canola, pumpkins, etc., and built rural tourism projects such as leisure fishing gardens and sand motorcycles. It has three business forms, namely, modern agriculture, labor education, and rural tourism, which has enabled every household to have an industry and everyone to work. "At present, the per capita disposable income of Nangou Village will increase from 4653 yuan in 2015 to 17500 yuan in 2021, which can reach 20000 yuan this year." Zhang Runsheng said. In recent years, Nangou Village has been awarded as China's Beautiful Leisure Village, Shaanxi Modern Agriculture Demonstration Park and National 3A Scenic Area, which has become a microcosm of rural revitalization in northern Shaanxi and ecological protection and high-quality development in the Yellow River basin. "Our family used to live in a cave. Now the eldest son and the second son have bought a house to marry. My wife and I live in a bungalow. Last summer I took my wife to Beijing and Tianjin for a week!" Speaking of the changes in these years, Liu Runxi is overjoyed. Luochuan County, not far from Ansai District, is the core area of the apple eugenic zone. The county has 640000 mu of arable land