Cover reporter Yu Ting
In the hot summer, if there is a good place to take a walk and enjoy the cool water and play in the water in front of the house, that would be great. Along the Jinjiang River, Mengchai Bay, the Red Star Bridge, the Living Water Park in the shape of a swimming fish is such a “treasure” park in the hearts of many Chengdu people. While it has the function of purifying water, it is also “Chengdu Emei Mountain” and “natural air-conditioned room”, with more than 400 kinds of plants, which is about 3°C lower than the average daily temperature outside the park.
In the 1990s, as a pearl in the comprehensive renovation project of Funan River, Living Water Park created the first park in the world to complete water purification by natural ecological methods. Today, Living Water Park is Jinjiang Park. One of the newly planned 23 parks, after this round of renovation, has become the first “mosquito-free park” along the Jinjiang River. How is this done? On the eve of the official opening of the park, the reporter of the cover news went to find out.
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< span>I didn’t get bitten by mosquitoes after playing around with blood type O
At 10:00 am, along the Jinjiang River, I walked into the upcoming Living Water Park. The refreshing coolness hits my heart, and the lush vegetation and the sound of gurgling water take away the heat of summer.
According to the data of the environmental monitoring station in the park, the temperature inside the park is about 3°C lower than the average daily temperature outside the park, and PM2.5 and PM10 are kept in single digits all year round. The entire park is built along the water, and the greenery formed by precious plants such as Emei peach leaf coral, Guanyin lotus fern, yew, dove tree, etc. makes people feel as if they are in the dense forest in the mountains of Emei.
As a blood type O, even if you stand for half an hour in the yard with better greenery, you can steadily “reap” a “mosquito” reporter with 5 or 6 mosquito packs. In the environment, I can’t take care of enjoying the beautiful scenery, I have been staring at my arms and calves, and the “mosquito monitoring radar” is running at high speed, ready to capture the targets that appear at all times.
However, after wrapping around the park for more than an hour, I did not use any mosquito repellent In the case of potions and mosquito repellent stickers, there was really no mosquito bite on the whole body. Isn’t this kind of environment the favorite of mosquitoes? How does the upgraded Living Water Park balance the relationship between natural ecology and mosquitoes? Zhu Juntang, director of the Third Institute of Landscape Architecture Center of Chengdu Park Urban Construction and Development Research Institute, explained the mystery to us.
“What we call a ‘mosquito-free park’ does not mean that there are no mosquitoes. This is not in line with ecological laws. It is just through a series of measures to achieve the effect of ‘no mosquitoes’.” Zhu Juntang first The concept of “mosquito-free park” was clarified. He introduced that this is a new attempt of Living Water Park. In the future, a “mosquito classification guide” will be launched simultaneously in Jinjiang Park, which will divide the distribution density of mosquitoes in the park into different levels and divide them according to the number of tourists. Corresponding prevention level.
Demystified
Pure Water and 50 “Hunters” work together
As a park with a history of 25 years, the Living Water Park has been designed and constructed with the principle of fully using The green concept of water ecological governance by means of natural ecology. Achieving the effect of “feeling without mosquitoes” is actually inseparable from the upgrading of green, low-carbon and ecology in this restoration and remediation process.
The most important point is that the “living water” and “purified water” in the Living Water Park are relatively less likely to breed mosquitoes. The restoration and renovation of the Living Water Park has further strengthened the multiple filtration and water ecological purification systems that have been operating in the Living Water Park for many years, allowing the water to flow naturally, purify it naturally, reduce the still water surface, and prevent mosquitoes from breeding.
Secondly, adjust the plant species, on the premise of ensuring the original vegetation ecology of the Living Water Park, without changing the original number of large trees and vegetation coverage, and try to optimize the planting sites. It has been fine-tuned to make the space wider and wider, and also effectively reduce the breeding space for mosquitoes.
In addition, a highlight of this Living Water Park restoration project is the introduction of more than 50 mosquito “hunters”. “, these green boxes “sit” quietly in the grass, using environmentally friendly physical bionic technology to trap blood-sucking female mosquitoes. It simulates the principle of human breathing. By collecting carbon dioxide in the air, the concentration of carbon dioxide in the air reaches the level of the human body, so that mosquitoes mistakenly think that the human body is breathing, so as to achieve the effect of catching mosquitoes. After the mosquito traps were put into use, monitoring found that the mosquito density in the park dropped from the initial 3.46/[unit·hour] to 0.18/[unit·hour].
Therefore, the living water park will be realized by purifying water, adjusting plant species, and enabling mosquito “hunters”.The park is basically free of mosquitoes, creating a more comfortable park experience for citizens.
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