摘要
利用长沙代表站的旱涝等级资料和长沙市历年的数据,建立了长沙市1900-2000年（101年）的旱涝等级序列。研究分析认为,在近100年中,长沙市涝灾比旱灾多19.80%;利用数理统计的方法,通过数学建模对长沙市粮食生产年景进行了划分。并研究了长沙市旱涝灾害与粮食产量波动的关系。图2,表5,参10。
Abstract： Based on the data of Changsha, a drought and flood grade series of Changsha district in the period of 1900 - 2000 is established. The variation of drought and flood is analyzed. It was demonstrated that, in the last 100 years, there are 19,80% more floods than droughts in Changsha district. Statistic analysis and mathematics model were used to divide the year harvest in the district of Changsha. Consequently the influence of flood and drought on the grain production is analyzed.
出处
《农业系统科学与综合研究》
CSCD
2007年第3期320-323,共4页
System Sciemces and Comprehensive Studies In Agriculture
基金
湖南省自然科学基金资助项目(04JJ3018)
湖南省教育厅资助项目(04C321)
关键词
长沙市
旱涝灾害
粮食产量
数学建模
District of Changsha
flood and drought
grain output
mathematics model
