摘要
通过对农业灾情系统中致灾因子与承灾体承灾能力的分析，揭示出自然与经济对灾情的综合作用。在地表与气候均不稳定的共同致灾背景下，灾情主要受经济系统（承灾力）的影响。灾情发生频率与承灾力呈负相关，灾情强度与承灾力呈正相关。不同灾害的影响结果也不相同。统计中的灾情主要与第一类灾害有关，第二类灾害通过影响承灾体的承灾能力加剧灾情。
It is shown that the natural and economic factors contribute to the agricultural disaster losses by the analysis of the causing disaster factors and disaster bodies.Having the background of unstable climate and landsurface,the study area suffers the disasters caused by the economic and natural system, in the frequency and intensity. The losses are mainly related to the first type disasters, and the second type increases the disaster losses through weakening the disaster endurance.
出处
《北京师范大学学报（自然科学版）》
CAS
CSCD
1996年第2期281-284,共4页
Journal of Beijing Normal University(Natural Science)
基金
国家自然科学基金
关键词
致灾因子
承灾体
灾情
承灾力
农业
causing disaster factors
disaster bodies
disaster condition
disaster endurance
first type disasters
second type disasters
