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自上世纪后半期以来,气候变化日益引起世界各国人民的广发关注。在经济全球化的背景下,气候变化作为一项国际议题,农产品的生产与流通势必也会受其影响。我国作为一个发展中国家,粮食问题是重中之重,我国的粮食生产不可避免受到全球气候变化的影响。河南是我国的粮食大省,其生产的粮食在我国粮食产量中占有较高比重,因此研究气候变化对河南粮食生产的影响十分必要,关系到我国的粮食安全。本文采用逐步回归分析,重点探讨气候变化所引起的气温与降水的变化对河南粮食生产的影响。
Since the latter half of the last century, climate change has increasingly attracted the attention of the people of all countries in the world. In the context of economic globalization, as an international issue, climate change is bound to affect the production and distribution of agricultural products. As a developing country in our country, the grain issue is the top priority and the grain production in our country is inevitably affected by the global climate change. Henan is a big grain province in our country. The grain it produces occupies a high proportion of the grain output in our country. Therefore, it is very necessary to study the impact of climate change on the grain production in Henan and the food security of our country. This paper uses a stepwise regression analysis to focus on the impact of climate change caused by changes in temperature and precipitation on grain production in Henan.