1982一2021年气候变化对淮北市夏玉米产量的影响
打开文本图片集
中图分类号 S513 文献标识码A 文章编号 1007-7731（2025）14-0001-06
DOI号 10.16377/j.cnki.issn1007-7731.2025.14.001
Impact of climate change on summer maize yield in Huaibei City from 1982 to 2021
LIU Lu1CAO Wen ZHANG Yongqin1YIN Han1WANG Shengnan1LIN Shanshan1LI Xinran1 （1Huaibei Meteorological Bureau，Huaibei 2350oo， China; ²Anhui Enginering LaboratoryofAgro-EcologicalBig Data，Anhui Agrometeorological Center，Hefei230031，China）
AbstractBased on meteorological and yield data of summer maize growth period in Huaibei City，Anhui Province from1982 to 2O21，the characteristicsof climate changeduring the growth periodof summer maize in theregionand its impact on yield were analyzed using trend analysis，moving average method，and Pearsoncorrelation analysis method. The results showed that（1）from1982 to2O21，the studyarea hadsuffcient precipitation，heat，andsunshineresources duringthe growth period of summer maize，which met the growth and development of summer maize.（2）From 1982 to 2021，the changes in summer maize yield and meteorological yield in the study area showeda consistent downward trend，withsignificant interannual variations inyieldandscatereddistributionofmeteorologicalyield.Byanalyzingthe relative meteorological yield，itcould beconcluded thatthe typical years of summer maize yield deficit in this region were 1987，1994，2003，2007and2014，mainlyafected bymeteorologicaldisasters such as droughtand waterloging （including continuousrainy weather）. （3）The diurnal temperature rangeand precipitation were the key meteorological factors affecting the yield of summer maize in study area，among which the diurnal temperature range during the milk ripening maturity period is significantly positively correlated with yield （ P <0.01）; The precipitation during the tasseling milk ripening period is significantly negatively correlated with yield （ P <0.05）; The average temperature，effective accumulated temperature>1OC，and sunshine hours have no significant impacton yield.Thisarticle provides a reference for regulating the microclimate in the field and improving maize yield.
Keywordsclimate change; summer maize; meteorological yield; related analysis
气候是农业生产中基本且重要的条件之一，其影响着农业的组成、布局和产量等l。（剩余8538字）