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1、2014.06,35(3)中國煙草科學ChineseTobaccoScience四川涼攀煙區(qū)植煙土壤有效銅和有效鋅空間變異特征張隆偉,伍仁軍,王昌全2聿,張倩,李冰2,李啟權(quán)2,卞建鋒,劉揚(1.四川省煙草公司,成都610041;2.四川農(nóng)業(yè)大學資源環(huán)境學院,成都611130)摘要:微量元素不僅影響煙葉生長發(fā)育及煙葉產(chǎn)質(zhì)量,且它們之間存在相互促進或拮抗作用。為了合理施用微肥,提高煙田合理施肥管理水平,改善煙葉產(chǎn)質(zhì)量,采用地統(tǒng)計和GIS技術(shù)相結(jié)合的方法,研究了涼攀煙區(qū)植煙土壤有效態(tài)Cu、Zn的空間變異
2、。結(jié)果表明,研究區(qū)植煙土壤有效態(tài)Cu含量比較豐富,有效Zn含量適中,分別為2.83、1.86mg/kg。受地形、氣候環(huán)境影響,不同縣域有效態(tài)Cu、zn含量差異較大。水稻土和黃壤有效Cu、Zn含量明顯高于紫色土。兩種微量元素與海拔呈負相關(guān)性。有效態(tài)Cu、Zn含量空間變異距離分別為50、25km,屬于中等強度空間變異,受土壤類型等結(jié)構(gòu)因素和施肥等隨機性因素的共同影響??臻g插值分析結(jié)果表明,有效態(tài)Cu、Zn含量總體上呈斑塊狀分布,區(qū)域差異性明顯。關(guān)鍵詞:植煙土壤;有效銅;有效鋅;空間變異;地統(tǒng)計學中圖分類
3、號:$572.06文章編號:1007.5119(2014)030001—06DOI:10.13496~.issn.i007—5119.2014.03.001SpatialVariabilityCharacteristicsofAvailableCuandZninTobaccoPlantingSoilsinLiangshanandPanzhihua,SichuanProvinceZHANGLongwei,WURenjun,WANGChangquan,ZHANGQian,LIBing。,LIQiquan
4、,BIANJianfeng,LIUYang(1.SichuanProvincialTobaccoCompany,Chengdu610041,China;2.CollegeofResourcesandEnvironment,SichuanAgriculturalUniversity,Chengdu611130,China)Abstract:Micronutrientsnotonlyinfluencetobaccogrowth.yieldandquality,andtakethepositiveoran
5、tagonisticeffectsforeachothersometimes.Inordertoapplymicronutrientsproperlyintobaccoproduction.a(chǎn)ndprovidescientificinformationforimprovingtheyieldandqualityoftobacco,geostatisticsandGISwereusedtostudythespatialvariabilitycharacteristicsofavailableCuand
6、ZnintobaccoplantingsoilsinLangshanandPanzhihua.TheresultindicatedthattheaveragecontentofavailableCuwasabundant,andtheaveragecontentofavailableZnismoderate.whichwererespectively2.83and1.86mg&g.AvailableCuandZncontentsvariedlargelyamongcountiesduetodifer
7、encesintopographyandclimate.TheavailableCuandZrtcontentswerehigherinpaddyandyellowsoilsthanthoseinpurplishsoil,andwerenegativelycorrelatedwithelevation.ThespatialvariationdistanceofavailableCuandZnwere50and25km,respectively,whichbelongedtomoderateinten
8、sityspatialvariation,whichwasinfluencedbystructuralfactorslikesoiltyoeandrandomfactorslikefertilizer.InterpolationresultsindicatedthatthecontentofavailableCuandZndistributedinpatchshapeasawhole.butdistributionsOftheirhighvalueareaandlow