Pofengling Red Leaf Sightseeing Scenic Area is located in Youlan Valley, Huangshandian Village, Zhoukoudian Town, Fangshan District, where the Peking Man Site is known as Longxiang. As early as 1929, Chinese paleontologist Pei Wenzhong discovered primitive human teeth, bones and a complete skull here, confirming that there had been human activities in the Beijing area 500,000 years ago. Huangshandian Village has many golden monuments and silver monuments as well as public reputation. In 2017, China's most beautiful leisure village "Characteristic Folk Village", 2018, the National Ecological and Cultural Village, and the first batch of national key rural tourism villages in 2019. The beautiful Pofengling is also praised by China National Geographic magazine as the most spectacular mountain red leaf landscape in North China. It is home to the largest wild cotinus cotinus in North China. In the next 22 days, Pofengling will be closely surrounded by 200,000 tall and lush wild cotinus red leaves, like a lush and majestic autumn painting.

Follow the elegant winding path and enter the red leaf forest. Looking up, Pofengling is already colorful and covered with forests. The cotinus trees seem to have stolen a mellow wine. They are red with their own characteristics: either peach, or purplish red, or scarlet, or crimson, or bright red, etc., all showing bright smiling faces. This place was once a remote place that no one knew about, a narrow path that few people walked into, and a poor ravine that no one cared about. Now it is full of red leaves, like layers of red waves reaching the sky. Many years ago, Pofengling was still a deserted mountain that was "far away in the mountains and unknown to people." Zhoukoudian people with foresight and development vision not only understand the poetry of red leaves, but also understand the economic value of red leaves. Therefore, they carried forward the spirit of the foolish old man, dug mountains over the years, and used ornamental trees such as cotinus and red maples to beautify this little-known barren mountain and wild ridge year by year. Nowadays, Pofengling, which has been covered in colorful makeup, attracts many tourists from Beijing, Tianjin and Hebei every year in the golden autumn.

There are many red-leaf tree species, and 80% of the red-leaf tree species in Beijing are cotinus cotinus. If Xiangshan Mountain in late autumn is "red all over the mountains and soaked by layers of forests", then Pofengling is "red leaves and green middle reaches, with colorful exercises dancing in the sky". Red, yellow, green, pink and black complement each other with the blue sky and white clouds. Looking from afar, it is like strips of colorful exercises flying in the sky, becoming a flowing ocean of colors. The gorgeous colors come from the rich variety of plant resources here. The red leaf sightseeing area in Pofengling has a total area of about 2000 acres, and a circular trail up and down the mountain is more than 6000 meters. Most of the slopes are distributed at the beginning of the slopes, including persimmon trees, walnuts, peach trees, apricot trees, and poplar trees, accompanied by wild wild jujube, wild yamushi, wild chrysanthemum, etc. The slopes go up on ten steps, and on both sides of the winding path are dominated by naturally grown tall coggygria, accompanied by Ma elm, Ma quanzi, jujube, mountain thorn, etc. On the high slope, tall cotinus cotinus, Lutheran trees, and poplar trees are densely distributed, dense but invisible to the sun.

Green leaves turn red due to both internal and external factors. There are two main substances that make the leaves appear red: one is carotene, which is an orange-red pigment commonly found in chloroplasts, and the other is anthocyanins, which are found in the cell fluid in the vacuoles. When the cell fluid is alkaline, the anthocyanins are blue-purple, and when the cell fluid is acidic, the anthocyanins are red. After autumn, the anthocyanins in the leaves of cotinus cotinus increased, and the drop in temperature caused the destruction of chlorophyll to disappear, so the green leaves turned into red leaves. The external factor for color change is climatic conditions: when the temperature drops rapidly to a certain extent, and the temperature at night drops much compared with the day, the leaves have not yet withered, and most of the chlorophyll has been destroyed. At the same time, the temperature difference between day and night increases, which also helps to form anthocyanins, so the leaves quickly turn red. If the temperature drops very slowly, the temperature difference between day and night is not large, the chlorophyll has not been destroyed and the tree has withered, it will not become beautiful red leaves. This is the main reason why the cotinus cotinus in Beijing often does not change red, but the cotinus cotinus in Pofengling becomes red and eye-catching.

Wild cotinus cotinus is a resource plant with great utilization value. The wood is yellow and can extract yellow industrial dyes. The bark and leaves can also extract tannin extract. The wood is also a raw material for making furniture or carving. The leaves contain aromatic oil, which can be used as a flavoring raw material, and the leaves of cotinus cotinus are rich. The anthocyanin content is gradually attracting people's attention and is expected to be developed into new natural food pigments. Li Shizhen mentioned in the Zhe strips in the Compendium of Materia Medica that "the wood is dyed yellow and red, which is called Zhe yellow, which is admired by the emperor." Interestingly, on October 22 this year, at the ceremony of the inauguration ceremony of the new emperor of Japan, Emperor Naruhito, he wore a royal robe dyed with yellow coggyus. The yellow coggyus dyed was the ochre yellow specially used for emperors after the Sui and Tang Dynasties. In the 11th year of Honorito in the early years of Heian (15th year of Tang Yuanhe, 820), Emperor Saga issued an edict to change the emperor's costumes based on the Tang Dynasty productions brought back by Kiyoshi Sugawara, the envoy of the Tang Dynasty, and stipulated that the emperor's large and small gatherings should use "yellow cotinus dye clothes"("Japanese Chronicle"). The color of its clothes is ochre yellow dyed by cotinus and sapwood, which has also become an absolute forbidden color outside the emperor in Japan. When Emperor Akihito ascended the throne in 1989, the belted dress used was the most solemn "yellow cog dyed royal robe".

Cotinus cotinus grows fearlessly on mountains with poor soil, loose rocks, and scarce water. The natural conditions are very harsh and it grows mixed with those little-known shrubs, vines, and weeds. Naturally, in such a harsh environment, cotinus can only be presented as shrubs. Even after growing for thousands of years, it is still not thick enough to carry. Its body is stubborn and arrogant. This is not a tree, but the spirit of life. It is a realism of vicissitudes and a witness of suffering. Standing on the top of the high mountain and overlooking the Yulan Valley, you can see that on the canyon, peaks face each other. On the edge of the plank road, red leaves cover the eyes, and distant mountains are like a prairie fire, within reach, and the veins of time are countless... I can't help but feel my blood boiling, passion surging, and I have no words to praise! In order to allow tourists to enjoy the most beautiful red leaves, Pofengling Scenic Area has specially set up photo check-in boxes in different locations, allowing tourists to take their own autumn blockbusters at ease. On the way to check in, there are many corner pavilions, stone tables and stone benches blended with red leaves, allowing tourists to rest and enjoy the beautiful scenery from a different angle. Walking to Yingkou Rock, 3000 meters away from Pofengling, you can see colorful colors everywhere you see. At sunset, the afterglow passes through the pass of Coffin Mountain (meaning "seeing a coffin and getting rich"), contrasting with the red leaf forest.

Beijing, a prosperous international city. There are many high-rise buildings around the ancient Forbidden City. Although the villagers living in Huangshandian are only a few dozen kilometers away from the city, they seem to be a paradise away from the city. After years of exploration and planning and design, Huangshandian Village has continuously explored new ideas for the development of the B & B industry through the village-enterprise cooperation model, and created a number of country B & B brands that are deeply integrated with the natural landscape. Yunshang Stone House has a total of 10 courtyards and a total construction area of 1500 square meters. The overall building of the house adopts local architectural style, harmoniously integrating farm characteristics and modern lifestyle. In terms of the main materials of the house, all the local stones of Huangshandian Village are collected in the Taoye Valley B & B courtyard. In terms of the interior design of the room, it fully integrates the regional culture and natural features of Huangshandian. Grandma's home basically retains the original farmhouse building, as well as the appearance texture and spatial relationship enclosed by the courtyard, so that it can smoothly integrate into the village context and retain rural memories. From the first step into my grandmother's courtyard, all my irritability suddenly disappeared without a trace. The faint fragrance from the mountains and fields penetrated the tip of my nose, and the peace and happiness that was once thousands of miles away returned to my heart.

In order to reflect China's traditional culture and memory and demonstrate the characteristics of intangible cultural heritage in Fangshan District, the Red Leaf Festival also set up an intangible cultural heritage market, and several inheritors of intangible cultural heritage skills were specially selected from Fangshan and surrounding areas to come here. Ancient methods of hand-made incense, windmills, as well as flour sculpture skills and roast chicken skills, allow tourists to experience the cultural characteristics of intangible cultural heritage up close. There is also a collection of mountain goods necessary for the annual Red Leaf Festival. The rose cakes, rose ice cream, hawthorn juice, chrysanthemum wine and other items sold on site were all made from locally grown fruits and flowers. The Red Leaf Festival also has a farming experience area, which neatly houses corn grain farms, where you can remove corn and grind corn flour yourself to feel the atmosphere of the countryside. Special reminders are that this Red Leaf Festival will last until November 15, after which the scenic spot will be closed and will continue to be open in early April next year.