What are the benefits of forests to human beings?
Second, the regulating function of forest. Various trees and plants in the forest absorb carbon dioxide through photosynthesis, fix it and release oxygen. The dense forest canopy can absorb, scatter and reflect part of solar radiation energy in summer, thus reducing ground warming. Although most forest leaves wither in winter, dense branches can still reduce the wind speed blowing across the ground, reduce air flow, and play a role in heat preservation and moisture preservation.
Because the roots of trees go deep into the ground, they constantly absorb the water in the deep soil for trees to transpiration, which makes the forest form fog normally and increases precipitation. Through analysis and comparison, the annual precipitation in forest areas is more than that in non-forest areas 10-30%. Under the background of global warming and increasing carbon dioxide, forests have played a very important role in regulating climate.
The third is the function of forest support system. Forests can prevent sandstorms and soil erosion, which is actually the function of forests to maintain the health of nature's own ecosystem.
Like the "Three North" shelterbelt project, it is a large-scale artificial forestry ecological project in the three north areas of China (northwest, north and northeast). The total construction area of the project is 4.069 million square kilometers. The construction of "Three North" shelterbelt system has played an active role in preventing wind and fixing sand, conserving water and soil, conserving water, improving the environment and promoting the development of agriculture, forestry, animal husbandry and sideline.
Finally, the cultural service function of forest is reflected in its tourism value and aesthetic value. This kind of value is produced with the improvement of material level, and the times have given people a change in consciousness. The forest is gradually appreciated as a beautiful scenery, which makes people feel visually beautiful.
The forest provides a space for people to get close to nature, entertainment and fitness. As a protected ecological resource, forest has been endowed with more and more cultural significance and spiritual connotation. Go deep into the forest, visit the beautiful scenery, understand the forest knowledge and improve the understanding of the forest.
Extended data:
China has a vast territory and a complex and diverse climate, including temperate monsoon climate, subtropical monsoon climate, tropical monsoon climate, tropical rainforest climate, temperate continental climate and plateau mountain climate. In addition, China has a wide latitude from north to south, and the radiant heat received by the sun varies from place to place. From north to south, there are temperate zones such as cold temperate zone, middle temperate zone, warm temperate zone, subtropical zone and tropical zone, as well as special Qinghai-Tibet alpine zone, and the hydrothermal conditions vary greatly from place to place.
The climatic zones and temperature zones in forest areas are different and have different types, which have obvious zonal distribution characteristics. Forest types in China can be divided into temperate coniferous forest, temperate mixed coniferous forest, temperate deciduous broad-leaved forest, subtropical evergreen broad-leaved forest, subtropical mountain-subalpine coniferous forest and tropical rain forest monsoon forest according to climatic regions and geographical distribution patterns, which also constitute a rich and colorful forest landscape.
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