What is forest ecological benefit?

It can be said that the forest is like the "scheduler" of nature. It regulates the circulation of air and water in nature, affects climate change, protects the soil from wind and rain, and reduces environmental pollution. harm to people.

The forest is indeed the "lungs of the earth". Every tree is an oxygen generator and carbon dioxide absorber. A linden tree can absorb 16 kilograms of carbon dioxide a day, and 150 hectares of poplar, willow, locust and other broad-leaved forests can produce 100 tons of oxygen a day. If the average urban resident has 10 square meters of trees or 25 square meters of grassland per person, the carbon dioxide they exhale will have a place to go, and the oxygen they need will also have a source.

Forests can conserve water sources and play an important role in the natural cycle of water. "Green mountains are always there, and clear waters always flow." Trees are always associated with water. Part of the precipitation rainwater is intercepted by the tree canopy, and most of it falls into the dead branches and leaves under the trees and the loose and porous forest soil and is stored. Some is absorbed by the roots of the plants in the forest, and some is returned to the atmosphere through evaporation. One hectare of forest can evaporate 8,000 tons of water a year, making the air in the forest area humid, increasing precipitation, keeping it warm in winter and cool in summer, thus regulating the climate.

Forests can prevent wind and sand, and prevent soil erosion. When a strong wind blows, it blocks the way with its trunk and crown to reduce the wind speed. Its roots are long and dense, grabbing the soil and preventing it from being blown away by the strong wind. Heavy rain falls in the forest, seeps into the deep soil and rock gaps, and slowly flows out in the form of groundwater, which cannot wash away the soil. According to records in Kenya, Africa, when the rainfall is 500 mm that year, the amount of sediment lost in agricultural land is 100 times that of forest areas, and the amount of sediment lost in grazing land is 3,000 times that of forest areas. Don’t we want to stop desertification and soil erosion? The most effective helper is the forest.