火山活动的环境资源效应

Environmental and Resourceful Effects of Volcanic Activities

火山活动是一种自然地质现象 ,其喷发活动具有双重的环境效应 .其不利的一面主要表现为对人类环境造成的灾害效应 ,主要有火山碎屑流灾害、熔岩流灾害、火山泥石流灾害、火山灰云灾害和火山气体导致的灾害等 ;同时火山活动也会对气候产生影响 ,大规模的强火山喷发 ,会在一定的时间范围内 ,导致全球平均气温降低 .火山活动会给人类带来巨大的灾难 ,同时也给人类社会带来了巨大的财富 ,如丰富的矿产资源、地热资源和旅游资源等 .本文主要从灾害、气候和资源三个方面阐述了火山活动对人类环境的深刻影响 .

Volcanic activities are very common geologic phenomena. On the one hand it brings benefit to the people, on the other hand it gives disasters and bittenress to them. The hazards are mainly produced by pyroclastic flow, lava flow, volcanic plume and volcanic gases. While explosive eruptions of volcanoes can also affect the climate, they also bring some natural resources. This article mainly discusses the influence of volcanic activities to the resources environment, climate and hazards.