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1978年 4月10日至 14日在美国召开的火烧影响讨论会上,美国防火专家对火烧与水的影响作了研讨,他们认为,火烧对水的影响主要表现在以下几个方面:水文过程的变化;流量及水流周期变化;水质变化,水生及生境的变化。一、水文过程的变化 1.对截留的影响:森林下层植被和地被物能减少雨滴对土壤表面的冲击作用。一旦这种截留体被火烧掉,截留量会随之减少,而迳流的危险性却随之而增大。
At a Symposium on the Effects of Fire at the United States on April 10-14, 1978, U.S. fire experts discussed the effects of fire and water. They believe that the effects of fire on water are mainly manifested in the following aspects: Hydrological processes Changes in flow and water flow; Changes in water quality, changes in aquatic and habitat. First, the hydrological process changes 1 on the retention of the impact: the lower forest vegetation and ground objects can reduce the impact of raindrops on the soil surface. Once this entrapment body is burned by fire, the amount of entrapment decreases and the risk of entrapment increases.