You must know about forest protection fire promotional knowledge.

1. What is a forest fire: Whenever the loss of human control, the free spread and expansion of the forest land, the forest climate that brings certain harm and losses to forests, forest ecosystems and humans is called forest fire.

2. Types of forest fire: According to the burning parts, nature and harm of forest fire, the forest fire can be divided into three categories: surface fire, crown fire and underground fire.

3. Firefire: The most common type of forest fire refers to the fire of fire from the surface of the ground and near the ground root system, young trees, and trunks.

4. Crown fire: refers to the surface fire encountering strong wind or encountering young tree clusters, dead wood or low drooping branches, burned to the crown, and expanded along the crown.

5. Underground fire: Underground fires generally occur in the needle leaf forests in the dry season. The fire is burned in the landscape, the surface of the soil surface, and the peat layer.The roots of trees and shrubs burned out, and a large number of trees dried.

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