湖南烟区土壤水溶性氯的地区分布特点及其与烤烟氯含量的关系
- 环保小兵 王续
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2020-03-07 13:50:14
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生态学杂志ChineseJournalofEcology2008,27(12):2190-2194湖南烟区土壤水溶性氯的地区分布特点及其与烤烟氯含量的关许自成郭燕肖汉乾系木(河南农业大学农学院,郑州450002;湖南省烟草公司,长沙410007)摘要分析了湖南烟区1341个土壤样品的水溶性氯含量与209个烤烟样品氯含量的空间分布特点。结果表明:湖南烟区土壤水溶性氯含量变幅为1.20—72.10mg·kg~,平均为(13.55±7.75)mg·kg~,有40.6%的土样氯含量较低,尤以湘西地区土壤水溶性氯含量最低,为(8.88±8.04)mg·kg~;湖南烟区烤烟氯含量变幅为0.15%~0.49%,平均为0.31%-i-0.09%,不同等级烤烟氯含量呈现出X2F>C3F>B2F的趋势,但等级之间差异不显著;根据土壤水溶性氯含量把样品分组后,对应的烤烟样品氯含量在组间差异达到了显著水平;烤烟氯含量与土壤水溶性氯含量之间存在极显著的线性关系(R=0.8106,P<0.01)。关键词湖南烟区;烤烟;氯含量;回归分析中图分类号$572文献标识码A文章编号1000—4890(2008)12—2190—05Geographicdistributionofsoilwater·solublechlorinecontentanditsrelationstochlorinecontentinflue-curedtobaccoleavesinHunantobacco-growingareas.XUZi—cheng.GUOYan,XIAOHan—qian(CollegeofAgronomy,He’nanAgriculturalUniversity,Zhengzhou450002,China;TobaccoCorporationofHubanProvince,Changsha410007,China).ChineseJournalofEcology,2008,27(12):2190-2194.Abstract:Atotalof1341soilsamplesand209flue—curedtobaccoleafsampleswerecollectedfromHunantobacco—growingareas.andtheirchloriBecontentsweredetermined.Thesoilwater—solublechlorinecontentintheseareasrangedfrom1.20to72.10mg·~,andaveraged(13.55±7.75)mg·kg~.40.60%ofthesoilsampleshadalowerwater—solublechlorinecon—tent,withthelowest(8.88±8.04)mg·kg一‘inwesternHunan.Thechlorinecontentofflue.curedtobaccoleaveswasfrom0.15%to0.49%.andaveraged0.31%±0.09%.Thechlorinecontentofdifferentgradesflue.curedtobaccoleaveshadatrendofX,F>CF>B,F,butthedifferencewasnotsignificant.Aftersoilsamplesweregroupedaccordingtotheirwater—solublechlorinecontent.asignificantdifferencewasfoundinthechorinecontentofcorrespondingflue—curedtobaccoleaves.Therewasasignificantlinearrelationshipbetweenthechlorinecontentofflue—curedtobaccoleavesandthewater.solublechloriBecontentofsoil(R=0.8106.P<0.01).Keywords:Hunantobacco·growingareas;flue-curedtobacco;chorinecontent;regressionanal-ysis.氯素是烟草生长发育必需的营养元素。氯参与并促进光合作用,维持细胞内电荷平衡和细胞压,控制气孔开闭,适量的氯还有利于CO的固定和碳水国家烟草专卖局重点科技攻关项目(110200401017)和河南省杰出人才创新基金资助项目(0421001900)。通讯作者E.mail:zcxu@sohu.corn收稿Et期:2008-04—17接受日期:2008-08-07化合物的形成(李永忠和罗鹏涛,1995;王少
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