| The frequent natural disasters in Longdong region in Qing dynasty made the local agricultural production suffer a great blow.Based on the overall investigation of the disaster environment and agricultural production in longdong region,this paper discusses and analyzes the agricultural production situation in longdong region in the qing dynasty,such as the arable land area,land use mode,drought,flood,hail and other disasters,and discusses the agricultural technology selection and agricultural development under the influence of disasters.The thesis consists of five chapters.The full text consists of five chapters.The first chapter mainly introduces the unique natural resources and regional location of the eastern region,and discusses the changes of administrative divisions in the Qing Dynasty in the Qing Dynasty and the basic relationship between climate resources,water resources and land resources.To lay the foundation for the analysis of natural disasters and agricultural development in the eastern part of the country.The second chapter mainly analyzes the cultivated land area and land use situation in the eastern part of the Qing Dynasty.Starting from the widely implemented folding coefficient,the actual land number in the eastern part of the eastern part of the country was calculated and restored by analyzing the algorithm of acre and the statistical method of the cultivated land area of the Qing Dynasty,and the land from the middle of the Qing Dynasty to the administrative areas of the eastern part of the Qing Dynasty was obtained.The number is generally gradually decreasing.Later,the land use patterns in the eastern part of the country were discussed,mainly the continuous advancement of the Agricultural Party and the development of forest and animal husbandry.The third chapter discusses the frequent natural disasters in the eastern part of the Qing Dynasty.Starting from local localities,the natural disasters in the eastern part of the country,such as droughts,floods,disasters and winds,and the war disasters dominated by the Shaanxi-Gansu Hui people during the Tongzhi period were described and analyzed,and the floods and droughts occurred frequently.Frequency calculations and spatial analysis were performed.After the statistics,the social unrest and agricultural destruction caused by the natural disaster environment and the war disaster environment were considered.The fourth chapter mainly studies the effect of disaster environment on the land use and the development and progress of agricultural technology in longdong region.From three aspects of disaster relief and disaster preparedness measures and system,improvement of crop varieties and improvement of agricultural technology,it highlights the technological changes carried out by the government and private forces in longdong region in the qing dynasty to resist disaster losses,improve agricultural efficiency and crop yield,and thus promotes the environment-dependent path of agricultural production in longdong region.The fifth chapter summarizes the full text,and look to the future from the past,put forward relevant suggestions for the future development and construction of the eastern region. |
