1, which can purify the surrounding air.

Trees absorb a lot of carbon dioxide, release oxygen through photosynthesis, maintain the balance of carbon dioxide and oxygen in the atmosphere, purify the environment, and enable human beings to continuously obtain fresh air.

2. It can increase the forest coverage of big cities and make them more livable.

Increasing the forest coverage rate of big cities can improve the urban ecological environment, enrich the spatial structure level of urban landscaping and the artistic effect of urban three-dimensional landscape.

3. Sustainable development

Urban landscaping is a subsystem of urban ecosystem, which plays a positive role in maintaining the ecological balance of the whole city, is an important ecological measure to realize the strategy of urban sustainable development, and is increasingly important in urban construction.

Step 4 provide food

Chestnut, walnut, fruit and Toona sinensis bud are human delicacies, and many leaves are food for various animals, such as koalas eating pressed leaves and silkworms eating mulberry leaves.

Nearly 10% of the world population lives in big cities-cities with a population of at least 100000. Although these people often rely on the natural environment outside the city for food and entertainment, the natural environment inside the city can also bring great benefits.

Trees can not only purify the surrounding air, but also increase the forest coverage of big cities, making them more livable and sustainable. By planting trees in cities, local residents and foreign tourists can directly benefit.

Urban forests include trees in family backyard, landscape trees in streets and green spaces in parks. Planting trees in these areas can expand the urban forest area.

Extended data:

Ways to save tree resources when tree resources is scarce.

1. Do not use disposable chopsticks and disposable paper cups.

2. Use less wooden pencils and don't waste every piece of paper.

3. Develop a good habit of recycling waste paper.

References:

People's Network-Urban tree planting has many benefits.