Tropical rain forest can regulate the global climate and maintain ecological balance.

Tropical rain forest climate is also called "equatorial rainy climate". Distributed between 5 ~ 10 on both sides of the equator. It is hot and rainy all year round, with an average monthly temperature of 25 ~ 28? Between c, the annual precipitation can reach more than 2000 mm. The seasons are evenly distributed, and there is no dry season. It mainly appears in Amazon Plain in South America, Congo Basin and Gulf of Guinea in Africa, most parts of Malay Archipelago in Asia and southern Malay Peninsula. They are mainly distributed in Amazon river basin in South America, Congo river basin in Africa, Gulf of Guinea, southwest coast of Indian Peninsula in Asia, Malay Peninsula, west coast of Indochina Peninsula, Philippine Islands and Irian Island, and Oceania extends from Sumatra Island to New Guinea. Mainly influenced by latitude: 1. Solar radiation: the amount of solar radiation is within the range of 100- 180 kcal/cm * year. It's hot all year round. Areas with stronger solar radiation will become deserts. 2. Atmospheric circulation: located in the equatorial low-pressure area, the trade winds gather and converge and rise near the equator, and the water vapor contained in it is easy to form clouds and cause rainfall. 3. Land and sea influence. Tropical rainforests are located at the seaside or in large river basins, which makes them abundant in rainfall and small in temperature difference. Low terrain, suitable for rainforest growth. 4. Vegetation has a great influence on the transpiration of trees, which makes the environment more humid.