50年来我国自然灾害变化对粮食产量的影响  

Impact of natural disasters change on grain yield in China in the past 50 years

作　　者：李茂松[1] 李章成[1] 王道龙[1] 杨修[1] 钟秀丽[1] 李正[1] 李育慧[1] 

机构地区：[1]中国农业科学院农业环境与可持续发展研究所,北京100081

出　　处：《自然灾害学报》2005年第2期55-60,共6页Journal of Natural Disasters

摘　　要：根据我国近50年的粮食产量统计资料,分析了各个年代主要粮食作物产量与影响和促进粮食产量的因素(耕地资源、化肥施入量、农机动力、农用水资源、自然灾害)之间的关系,结果表明,自然灾害对我国粮食产量的影响极大,要确保我国粮食生产的安全,不仅需要有外部资源及投入,而且在粮食生产过程中要积极进行防灾减灾。Based on statistical data for grain yields in the past 50 years, this paper analyzed the relationship between the main crop’s productions and the influence factors which include farmland resources, amount of chemical fertilizer usage, power of agricultural machine, irrigation water, and natural disasters. The results show that natural disasters deeply influence the security of the crop’s production. The paper also points out that in order to maintain the food supply in China, not only the finance and resources investigation but also the disaster prevention and mitigation are necessary in crop’s production.

关 键 词：粮食产量 自然灾害 粮食安全 相关性 

分 类 号：X4[环境科学与工程—灾害防治]