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植烟区烟叶氯含量风险评估及影响因素分析

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  • 国家科技期刊平台
  • NETL
  • NSTL
  • 万方数据
为进一步明确植烟区影响烟叶氯含量的环境因素及其可能的影响路径,于2021年在云南采集7个乡镇植烟区的烟叶及对应的土壤和灌溉水样品,系统评估该植烟区烟叶的氯含量状况,并探讨其与植烟土壤和灌溉水之间可能存在的联系.结果表明,该植烟区烟叶、灌溉水和土壤均存在不同程度氯含量超标风险,其中28.79%的烟叶中氯含量超过优质烟叶标准.Mantel-Test分析表明,烟叶氯含量与烟叶品质整体呈负相关,且与土壤主要理化性质、灌溉水氯含量密切相关.结构方程模型(structural equation model,SEM)分析表明,灌溉水氯含量对烟叶氯含量具有极显著直接正向效应(影响系数为0.459),对土壤化学特性有显著直接负向效应(影响系数为-0.225);而土壤物理特性对化学特性具有极显著正向效应(影响系数为0.370).综上所述,该植烟区存在较高氯含量超标风险,灌溉水氯含量和土壤物理性状是重要影响因素,它们通过影响土壤化学性状及土壤含氯量共同引起烟叶氯含量超标,并最终降低烟叶品质.
Risk Assessment and Influencing Factors Analysis of Chlorine Content in Tobacco Leaves in Tobacco Planting Areas
In order to further clarify the effect of environmental factors on the chlorine content of tobacco leaves in tobacco-growing areas and their possible influencing paths,the tobacco leaves,corresponding soil and irrigation water samples were collected from 7 townships in a tobacco-growing area in Yunnan in 2021.The chlorine content of tobacco leaves in tobacco-growing areas was systematically evaluated and its possible relationship with tobacco-growing soil and irrigation water was discussed.The results showed that there was a risk of excessive chlorine content in tobacco leaves,irrigation water and soil in this tobacco planting area.Among them,28.79%of the chlorine content in tobacco leaves exceeded the standard of high-quality tobacco leaves.Mantel-Test analysis showed that the chlorine content of tobacco leaves was negatively correlated with the overall quality of tobacco leaves,and was closely related to the main physical and chemical properties of soil and the chlorine content of irrigation water.The structural equation model(SEM)analysis showed that the chlorine content of irrigation water had a very significant direct positive effect on the chlorine content of tobacco leaves(the influence coefficient was 0.459),and had a significant direct negative effect on the chemical properties of soil(the influence coefficient was 0.225),while the physical properties of soil also had a very significant positive effect on chemical properties(the influence coefficient was 0.370).In summary,there was a high risk of chlorine content exceeding the standard in this tobacco planting area.The chlorine content of irrigation water and soil physical properties might be important factors,which could cause the chlorine content of tobacco leaves to exceed the standard by affecting soil chemical properties and soil chlorine content,and ultimately reduce the quality of tobacco leaves.

chlorine content of tobacco leaveschlorine content of irrigation watersoil chlorine contentphysical and chemical properties of soilstructural equation model(SEM)

黄跃、谢晏芬、朱宣全、贾孟、王戈、白羽祥、杜宇、周鹏、赵宇婷、朱红琼、杨帆、肖志文、王文波、方志鹏、韩家宝、王娜

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云南农业大学烟草学院,昆明 650201

曲靖市烟草公司陆良分公司,云南 曲靖 655699

玉溪市烟草公司易门分公司,云南 玉溪 653199

烟叶氯含量 灌溉水氯含量 土壤氯含量 土壤理化特性 结构方程模型(SEM)

国家自然科学基金中国烟草总公司云南省公司科技项目

318603572021530000242005

2024

10.13304/j.nykjdb.2023.0061

中国农业科技导报
中国农村技术开发中心

中国农业科技导报

CSTPCD北大核心
影响因子：1.252
ISSN：1008-0864
年,卷(期)：2024.26(6)
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