Geostatistical Analysis on the Temporal Patterns of the Yellow Rice Borer, Tryporyza incertulas

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摘要 Inordertocomprehendtemporalpatternofthelarvaepopulationoftheyellowriceborer,Tryporyzaincertulas,andprovidevaluableinformationforitsforecastmodel,thedataseriesofthepopulationforeachgenerationandtheover-winteredlarvaefrom1960to1990inDingchengDistrict,ChangdeCity,HunanProvince,wereanalyzedwithgeostatistics.Thedataseriesoftotalnumber,the1stgeneration,the3rdgenerationandtheover-winteredlarvaeyeartoyeardisplayedratherbetterautocorrelationandprediction.Thedataseriesofgenerationtogeneration,the2ndgenerationandthe4thgenerationyeartoyear,however,demonstratedpoorautocorrelation,especiallyforthe4thgeneration,whoseautocorrelationdegreewaszero.Thepopulationdynamicsoftheyellowriceborerwasobviouslyintermittent.Aremarkablecycleoffourgenerations,oneyear,wasobservedinthepopulationofgenerationtogeneration.Omittingthecertaingenerationorinterposingtheover-winteredlarvaeonlyresultedinalessorslightchangeofautocorrelationofthewholedataseriesgenerationtogeneration.Cropsystem,food,climateandnaturalenemies,therefore,playedmoreimportantrolesinregulatingthepopulationdynamicsthanbasenumberofthelarvae.Thebasictechniquesofgeostatisticsappliedinanalyzingtemporalpopulationdynamicswereoutlined.
机构地区 不详
出处 《水稻科学:英文版》 2005年3期
出版日期 2005年03月13日(中国期刊网平台首次上网日期,不代表论文的发表时间)
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