How many years does a tree live?
Big trees can be seen everywhere in our daily life, and there are many kinds of trees, shrubs and woody vines. Trees play an indispensable role in regulating climate and conserving soil and water. most of the carbon dioxide we exhale every year is converted into oxygen through trees, so how many years can a tree live?
How many years can a tree live?
Trees have different survival years according to their varieties and planting areas. Some old trees with a long life span can still survive after more than a thousand years, while some trees with a relatively short life span may die in a few years or even less. In addition, the climate of the planting area and the way of planting also have a great impact on the life span of plants.
In general, trees have the longest lifespan, followed by shrubs and vines. The lifespan of trees varies greatly from species to species. Conifers generally live longer than broad-leaved trees, such as pine, spruce and larch, which can reach 250-400 years, Korean pine 3000 years and giant sequoia more than 4000 years.
Second, relevant information about trees
In 2015, a report estimated that there were about 3 trillion trees on the planet, of which about 1.39 trillion were in the tropics and subtropics, 610 billion in the temperate zone and 740 billion in the northern forests around the Arctic. Compared with 11,000 years ago, human activity has halved the number of trees. The most direct consequence of the reduction of trees is desertification.
In order to combat desertification, China has carried out the world's largest afforestation program, and the three-north shelterbelt has increased China's green area by more than ten percent. Afforestation can prevent soil erosion and resist strong winds. It is the lack of forests on the Loess Plateau that makes a large amount of fertile land flow to the Yellow River. Forests can absorb sound waves and reduce noise. Proper planting of trees in cities can effectively reduce noise such as factories, cars and noise. It can be said that to carry out afforestation is also to protect the homes of human beings.
The above is some relevant information about trees, and interested friends can also conduct a more in-depth survey.
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