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东北地区自然灾害主要有洪涝、干早、台风、低温霜冻等多种气候气象灾害;粘虫、猪瘟病等百余种病虫害及多种鼠害;地震、滑坡、沙化、盐渍化等地质地貌及多种环境灾害.这些灾害构成了对农业生产及经济发展的极大危害.为做好防灾减灾工作,必须根据区域灾害的组合特点,因地制宜地综合治理,才能取得成效.为量度各种灾害在某一地区中的比重和排位,改变了过去惯用的方法,而直接采用人类社会遭受自然灾害的损失额度进行量度.对省、区提供的灾害资料,结合现状进行修订、整理,粗线条地勾勒出东北地区的灾害组合型。另外,根据东北地区自然灾害的区域分布与差异,自然灾害组合差异,危害的相似及差异,可将东北地区分成7个不同自然灾害组合类型地区.
Natural disasters in Northeast China mainly include floods, dry spells, typhoons, low temperature frost and other climatic and meteorological disasters; pests and diseases such as armyworm, swine fever and a variety of pests and diseases; earthquakes, landslides, desertification, salinization and other geological Landforms and a variety of environmental disasters. These disasters constitute a great danger to agricultural production and economic development. In order to do a good job in disaster prevention and mitigation, we must make achievements in accordance with the characteristics of regional disasters and comprehensive management according to local conditions. In order to measure the proportion and rank of various disasters in a certain area, the method used in the past has been changed, and the amount of natural disaster suffered by human society has been measured directly. The disaster information provided by the provinces and autonomous regions will be revised and collated according to the status quo, and the outline of the disaster combination in the northeastern region will be outlined. In addition, according to the distribution and differences of natural disasters in Northeast China, the differences in natural disasters and the similarities and differences in hazards, the northeastern regions can be divided into seven different types of natural disasters.