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.
出处
《自然灾害学报》
CSCD
北大核心
2005年第2期55-60,共6页
Journal of Natural Disasters
关键词
粮食产量
自然灾害
粮食安全
相关性
grain yield
natural disasters
food security
correlation
