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1、棉花学报CottonScience2017,29(2):177―185气候变化对河北省棉花物候期的影响1,21,222131*2*王占彪袁陈静袁毛树春袁韩迎春袁张立峰袁陈阜袁李存东袁李亚兵渊1.河北农业大学/河北省作物生长调控实验室袁河北保定071001曰2.中国农业科学院棉花研究所/棉花生物学国家重点实验室袁河南安阳455000曰3.中国农业大学/农业部农作制度重点实验室袁北京100194冤摘要院揖目的铱研究河北省棉花物候期对气候变化的响应遥揖方法铱利用气象数据和棉花物候期数据袁分析了1981要2010年河北省棉花各生育阶段气候变化特
2、征尧物候期变化趋势尧各生育阶段长短变化趋势以及各生育阶段长短与该生育阶段气象因子的相关性遥揖结果铱1冤棉花各生育阶段平均温度和逸0℃积温整体呈升高趋势曰2冤棉花播种期尧出苗期尧现蕾期尧开花期尧吐絮期呈提前趋势袁而收获期呈延后趋势遥开花之前各生育阶段缩短袁开花之后各生育阶段延长袁整个生长期延长曰3冤吐絮之前各个生育阶段的平均温度尧逸0℃积温与该生育阶段长短呈负相关袁吐絮到收获及全生育期的天数与该时期平均温度尧逸0℃积温呈正相关遥揖结论铱研究结果有助于理解气候变化对棉花生长发育的影响袁并据此提出棉花生产应对气候变化的适应技术与策略遥关键词院
3、棉花曰气候变化曰物候期中图分类号院S562.01文献标志码院A文章编号院1000-7807渊2017冤02-0177-0910.11963/issn.1002-7807.2017020071,21,222131*WangZhanbiao,ChenJing,MaoShuchun,HanYingchun,ZhangLifeng,ChenFu,LiCundong,Li2*Yabing渊1.071001,;2.455000,;3.100094,)[Objective]Thestudyaimedtoinvestigatetheresponseof
4、cottonphenophasetoclimatechangeinHebeiProvince.[Method]Using1981-2010cottonphenophaseandmeteorologicaldatafromagriculturalmeteorologicalexperimentalstationsandmeteorologicalstationsinHebeiProvince,China,weanalyzedtrendsinclimaticfactors,cottonphenophase,andthetimin-gofdi
5、fferentcottondevelopmentalstages.WealsocalculatedSpearmancoefficientsbetweenthedaysofdifferentcottondevel-opmentalstagesandmeteorologicalfactorsattypicalstationsinHebeiProvince.[Result]Weobservedthefollowingresultsovertheinvestigatedtimeframe:1)InHebeiProvince,meanandacc
6、umulatedtemperature逸0℃increasedduringeachcottondevel-opmentalstage.2)Sowing,emergence,squaring,floweringandboll-openingphenophasesadvanced,butharvestingwasde-layed.Consequently,developmentalstagespriortothefloweringphenophasewereshortened,whereasthoseafterfloweringwerele
7、ngthened.Theentiredevelopmentalperiodwasthereforeextended.3)Priortobollopening,meanandaccumulatedtemperature逸0℃ateachdevelopmentalstagewerenegativelycorrelatedwiththelengthofdifferentdevelopmentalstages.Afterbollopen-ing,however,meanandaccumulatedtemperature逸0℃ateachdeve
8、lopmentalstageaswellasovertheentireperiodofdevelop-mentwerepositivelycorrelatedwithdevelopmentalstagele
