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森林是人类的宝贵资源。在破坏森林的诸因素中,以森林火灾最为严重,是森林的大敌,目前世界各国由于森林火灾烧毁的森林还十分严重,一些森林资源丰富、科学技术先进的国家如美国、加拿大和苏联等,对森林火灾也难以控制,特别是对森林大火更是束手无策。世界各国发生的森林火灾每年平均在20多万次,烧毁的森林面积在几百万到几千万公顷,约占世界森林覆盖率的千分之一以上,这是十分惊人的。
The forest is a precious resource for humanity. Among the factors that destroy the forests, the most serious forest fires are the enemy of the forest. At present, the forest burned by forest fires in various countries in the world is still very serious. Some countries with rich forest resources and advanced science and technology, such as the United States, Canada, the Soviet Union, etc. , It is hard to control the forest fire, especially for the forest fire. Forest fires in various countries in the world average more than 200,000 times a year, and the burned forest area is in the millions to tens of millions of hectares, accounting for about one thousandth of the world’s forest coverage, which is quite alarming.