Chuanguan News reporter Pu Nanxi Chengdu Observation Wang Ao
On April 26, the 2024 Chengdu World Horticultural Expo will be officially opened, in addition to a variety of exotic flowers and plants, wonders and strange scenes, in the main venue of the Eastern New Area with a total area of 3,633 acres, there are many horticultural "black technology", revealing the future trend of horticultural development. On April 23, the Sichuan View News reporter explored the science and technology of the main venue of the World Horticultural Exhibition in advance.
An "iron box" farm that does not require dirt and pesticides
Walking into the Cultivation and Reading Imagination Garden located in the future horticulture exhibition area, an "iron box" about 12 meters long and 2 meters wide comes into view. The reporter learned that this is an agricultural Internet of Things smart container brought by Chengdu Vocational College of Agricultural Science and Technology.
"The agricultural Internet of Things smart container is a highly integrated micro mobile plant factory, which integrates cutting-edge technologies such as the Internet of Things and automation on the basis of traditional agricultural technology, and provides strong technical support for the intelligence and refinement of agricultural production. Li Chaopeng, an engineer of agricultural Internet of things planting boxes, said that through the control of temperature, humidity, light, carbon dioxide and other factors in the area, the most suitable growth conditions can be provided for vegetables and higher quality vegetables can be cultivated.
Compared with traditional smart greenhouses, agricultural IoT smart containers are more adaptable and can move freely with demand. Fresh vegetables can be produced normally in environments such as the Gobi, beaches, islands and reefs, and even at high altitudes.
In addition, the agricultural Internet of Things smart container also echoes the concept of "green and low-carbon, economical and sustainable, sharing and inclusiveness" of the World Horticultural Expo. "Because the plant grows in a closed and clean environment, it has the characteristics of saving water resources, reducing the use of chemical fertilizers and pesticides, and is not limited by the season. By precisely controlling nutrient availability and environmental parameters, vertical farming can reduce dependence on fertilizers and pesticides and reduce environmental pollution. Li Chaopeng said.
Succulent garden that "breathes freely" on a concrete roof
In the Shanghai Exhibition Garden in the northern area of the Chinese Horticultural Exhibition Area, there is a 5.5-meter-high earth-covered building that is particularly eye-catching, the whole building is "planted" in rock and soil layers, and it is worth noting that 220 kinds of succulents are planted on its roof.
Succulent garden on the roof of Shanghai Garden Photo by Wang Ao
In order to create an ideal environment for the growth of plants, professional technicians carried out a detailed renovation on the basis of the original concrete roof. "We erected a 50 mm thick permeable board at the bottom to ensure smooth water penetration, and a 100 mm diameter drainage blind pipe around each compartment to effectively prevent water accumulation, plus a 350 mm thick EPS lightweight crushed foam board to provide a stable growth base for the plants, then covered with two layers of burlap and two layers of geotextile to enhance the water retention and air permeability of the soil, and finally, a 150 mm thick granular nutrient soil for succulents was laid on the surface to provide sufficient nutrients for psammophytes and succulents。 Gong Ming, project leader of Shanghai Construction Engineering Garden Group Green Building Company, said that after completing these careful preparations, the project department carried out the planting of plants, and covered the top layer of plants with a layer of 50 mm thick maifan stone, adding a natural charm.
The entire Shanghai Park also uses a "visual, intelligent, and remote" three-dimensional visual monitoring system. Through the environmental monitoring system, video security system, plant growth environment monitoring system, people flow monitoring system and energy consumption monitoring system, we can intuitively grasp the environmental quality of the living and amusement park of Shanghai Exhibition Park, the flow and dynamics of each major scenic spot, and the relevant technical parameters of the plant growth environment.
Jingdong unmanned logistics vehicle
The main venue of the Eastern New Area is also full of science and technology in terms of supporting facilities. At the Yiding Coffee booth in Jinyun Building, visitors can taste the coffee made by robots throughout the process. "After tourists use their mobile phones to select their favorite flavors and place an order with one click on the applet, the robot's two thick 'arms' will operate dexterously and neatly, and a cup of hot coffee can be delivered to their hands in less than a minute. The person in charge of the booth introduced.
Robot coffee machine
In addition, the intelligent delivery vehicle launched by JD Logistics will be used for the distribution of catering materials and other materials for the World Horticultural Expo, so as to facilitate the relevant experience of visitors to the park.