在地球上处处有碳的踪迹。在烧岩、变质岩和沉积岩中可找到沉睡着的碳；在工厂、机动车辆行驶的大街上有碳的活跃分子。但科学家认为，大气中的碳粒主要来自森林大火。如１９８７年４月开始，苏联后贝加尔森林大火燃烧了两个月；同年，５月６日的我国大兴安岭特大森林火灾，燃 There are traces of carbon everywhere on Earth. Sleeping carbon can be found in burnt rocks, metamorphic rocks and sedimentary rocks; there are carbon activists on the streets of motor vehicles in factories. But scientists believe that the atmosphere of carbon particles mainly from forest fires. As the beginning of April 1987, after the Soviet Union Baikal forest fire burned for two months; the same year, on May 6 in our country Greater Khingan Range forest fire, burning