Bo Wen | Wetland: Poetic picture of urban life (1)

After steaming, I couldn't help thinking about it in the heat of steaming and cooking. How did people spend a difficult hot summer in ancient times without fans and air conditioners?

The ancients were in summer, and they were actually close to the mountains. Living according to the water is the correct way to open the summer heat in the summer. "Pavilion's noon, swim alone love Fangtang." At noon on the day of the summer solstice, everything was resting. Summer troubles, as if they are not in the world, "described a scene of sitting in a cool world to avoid heat and irritability.

Both Zezhe and the pond are all the ancients of the ancients. At that time, ordinary people liked to enter the lake, or a cruise to reward the lotus, or sleeping with Liu Ying, or to sing a mad song, or talk about fishing. After all, it can absorb heat, release cold air, dense water plants, and can also block the sun and cover.

In ancient times, "marsh,, coastal, margin, continents, ponds, and strokes" all refer to wetlands, and the ancients of the ancients seemed to have long been familiar with the huge functions of wetlands.

The merit of moisturizing and purifying wetland

Wetland is a natural air conditioner, which has a strong function of regulating the climate -because the heat capacity of water is greater than the ground, the heat absorption and heat control are slow, so the temperature changes on the wetland are more eased; The process continues to transport water vapor to the ground atmosphere. While improving the air humidity of the surrounding areas, it can also induce rainfall to a certain extent; the wetland itself can produce wind due to the flow of water. Feel "cool" on the shore.

Wetland is a green sponge. This natural water storage system has a strong mellow runoff, average water level, and the ecological function of controlling floods. It can also supplement the water source of the underground water storage layer through penetration.

Wetland is the kidney of the city, and it is the strongest self -purified ecosystem in nature. When the flowing water containing pollutants passes through the wetland, the flow rate will slow down significantly, which is conducive to the precipitation of pollution substances. Plants, microorganisms, and bacteria growing in wetlands can absorb, decompose or fix pollutants and toxic substances in domestic sewage and industrial wastewater.

Cultural image of wetland

During the period of Emperor Shun, the earliest "environmental protection department" appeared in China, including officials who specialized in protecting and governing mountains and forests. In the pre -Qin dynasties, it was divided into two positions: Yu and Heng. During the Spring and Autumn Period and the Warring States Period, Yunmeng Wetland was the royal hunting area of ​​the Chu Kingdom. At that time, Yunmengze's biological diversity was very rich, "rhino puppet elk is full." The "Law of the Temple" formulated by the Qin Dynasty includes the protection of various biological resources in hills, land, and water Ze, and also stipulates that people cannot block the river channels.

Human beings live in cities along the rivers and lakes from water and grass, and they are always inseparable from the nourishment of wetlands. About 7,000 years ago, humans began to plant rice in wetlands, and gradually accumulated their understanding of wetland. In "The Book of Songs", "Guofeng · Zhao Nan · Cai" said, "Yu Yicai? Yuma Yu" (Where is the collection of white 蘩? Behind the swamp, on the sandbar); "Guofeng · Zhounan · · There is a famous sentence "Guan Guan Kujiu, in the continent of the river" in Guan Yan; "National Wind · Qinfeng · 蒹葭" is "蒹葭 Cang Cang, Bai Lu is frost. The so -called Yiren, in the water side of the water" Baiwan has become a choice of passion. The "Lotus Clothing and Jiu Song" in "Chu Ci · Nine Songs, and Suddenly Suddenly" (wearing a lotus clothing, tied the grass, suddenly came and suddenly stayed away), showing the original landscape of the wetland and the original landscape of the wetland and the wetland and Cultural customs that are generated.

From ancient times to the present, the creative background of many literary works has also been related to wetland. The eight hundred miles of water moisturizes and 蓼 蓼 in "Water Margin", the relics of these ancient wetlands are still fascinating; everyone who has watched the Peking opera "Shajiabang" knows that "Lu Gen, Chicken Head Rice" Zeng Wei was the New Fourth Army. The life of the warrior; the "Wild Ducks and Lotus Roots around the Honghu Red Guards", the autumn harvest is full of rice and the rice, and sang the hometown of beautiful and rich fish and rice. "On the banyan tree by the pond, I knew that it was called summer." This song brought us back to our childhood.

Water and land ecological intersection

The first footprint of human civilization is to step on the wet water. Born according to the water and living in water, it is the natural law of human survival and development. Wetland leaves its own mark in the history of all ethnic groups in the world.

The term "wetland" in modern Chinese is translated from Wetland in English. The more general definition comes from the "Wetland Convention" signed by representatives of 18 countries and regions on February 2, 1971. Either artificial, long -term or temporary swamp land, peat or waters, static or flowing, fresh water, half salt water, salted water body, including water depth at low tide not exceeding 6 meters. " In a narrow sense, the wetland is the ecological staggered belt of the water and land, that is, the transition zone between two or more ecological community, including the transition zone between terrestrial and aquatic communities.

In short, wetland is the place where water and land meet. The total area of ​​Pattanal Wetland in South America reaches 242,000 square kilometers, which is the largest wetland in the world.

Chengdu Daily Jinguan Journalist Huang Yike Editor He Qixie Editor Liu Yonghao

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