摘要
分析了东北地区１９５１～１９９４年作物生长季（５～９月）旬平均气温变化及其对粮食产量的影响，结果表明，作物生长季气温变化有明显的增暖趋势，主要表现在８０年代以后，其增温幅度小于年平均气温升温幅度。通过气温变化与粮食产量关系及作物生育关键期气温的变化对产量贡献的分析，进一步阐明东北地区气温升高有利于粮食增产。
The variation of mean dekad temperature of crop growing season(May～Sep) inNortheast China during the period of 1951～1994 and its effect on crop yield areanalyzed. The results show that the temperature change in growing season has been aremarkable warming tendency since 1980 s,and its amplitude of warming in cropgrowing season is less than that of annual mean temperature。 Based on analyses of therelationship between temperature change and crop yield and the contribution of thetemperature variation to crop yield in the key period of growing season, it could bepointed out that the temperature increasing of growing season is favourable to the foodproduction in Northeast China。
出处
《应用气象学报》
CSCD
北大核心
1995年第A01期102-107,共6页
Journal of Applied Meteorological Science
