What effect does the forest have on the climate?

Forests are densely distributed areas, and various plant communities cover a large area of the earth and play an important role in climate regulation. Plant respiration is a process of consuming carbon dioxide and releasing oxygen, a key ecological link of animals, and an indispensable material condition for hydrological turbulence regulation and soil consolidation, which occupies an irreplaceable position in the earth's biosphere. Russian forestry expert G·F· Morozov proposed in 1903 that forest is a synthesis of trees, accompanying plants, animals and their environment. Forest botany, geobotany and vegetation science call it forest plant community, and ecology calls it forest ecosystem. In forestry construction, forest is a natural resource that can be protected, developed and regenerated. For human beings, its ecological benefits, economic benefits and social benefits are great.

As a huge surface biological community, forest is dominated by trees. Forest is rich in species, complex in structure and numerous in functions. Forest and abiotic environment in space are organically combined to form a complete ecosystem. Forest is the largest terrestrial ecosystem on the earth and an important part of the global biosphere. It is the gene pool, carbon pool, water storage pool and energy pool on the earth, and these resources and environment provided by forests are the material basis for human survival. Forests play an important role in the balance of the whole ecosystem on the earth.

Today, there are few primary forests in China, and a large part of them are in the natural forest areas in the northeast and southwest. From the forest appearance, coniferous forests and broad-leaved forests account for about half, the former 49.8%, the latter 47.2%, and the remaining 3% are mixed coniferous and broad-leaved forests.