| In recent decades,under the joint action of natural human and human activities,the global climate has shown a warming trend.The climate change issue involves many aspects.This has had a great impact on agricultural production and food security and has caused Widespread attention from all countries in the world.China is a big country in agriculture.No matter how big or small the climate changes,it will have an impact on agricultural economic activities.The stability of agriculture is crucial to the stable development of China.With the warming of the global climate,the frequency of extreme weather has also increased.This has also had an increasing impact on China's agricultural production.Anhui Province is an important agricultural province and an important national commodity grain base.The output of grain crops has been rising year by year.Hefei City,as the provincial capital of Anhui Province,has gradually increased its food crop production to the proportion of grain crops in Anhui Province,reaching 10.25% in 2011.Therefore,it is of great significance to analyze the impact of climate change on the total output of food crops in Hefei City.Faced with the current background of climate change,the data of Hefei City were queried to first analyze the temperature and precipitation of Hefei City and the grain production data of Hefei City,briefly expounding its development trend,and then presenting the factors affecting grain yield.The results of multivariate analysis of changes show that during 1988-2016,climate change had a clear impact on the output of grain crops in Hefei City.At the same time,grain sown area,pesticide application amount,affected area,agricultural machinery and other factors also affected food production.However,the impact of effective irrigation areas,small tractors and other factors on food production is not very obvious.This still needs attention.Finally,according to its current development trend,it puts forward corresponding countermeasures and suggestions. |
PDF Full Text Request