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中国农学通报

中国农学通报 ›› 2025, Vol. 41 ›› Issue (12): 80-87.doi: 10.11924/j.issn.1000-6850.casb2024-0251

• 资源·环境·生态·土壤 • 上一篇    下一篇

石屏县植烟土壤pH空间分布特征及其潜在调控因素分析

张广东1(), 尚志伟1, 赵梦迪1, 杨春华1, 王婷1, 阮海明1, 张雪峰1, 周芳芳2()   

  1. 1 云南省烟草公司红河州公司，云南红河 652300
    2 云南农业大学植物保护学院，昆明 650201
  • 收稿日期:2024-04-07 修回日期:2025-03-12 出版日期:2025-04-25 发布日期:2025-04-24
  • 通讯作者:
    周芳芳，女，1985年出生，内蒙古丰镇人，高级工程师，博士，主要从事烟叶原料生产技术研究。通信地址：650500 云南省昆明市呈贡区雨花路1577号，Tel：0871-65937331，E-mail：。
  • 作者简介:

    张广东，男，1988年出生，河南原阳人，农艺师，硕士，主要从事烟叶原料生产与技术研究。通信地址：662200 云南省红河州石屏县湖滨路11号，Tel：0873-4858093，E-mail：。

  • 基金资助:
    云南省烟草公司红河州公司科技计划一般项目“石屏烟区烤烟种植制度优化技术研究”(HHYC202304)

Analysis of Spatial Distribution Characteristics of Soil pH and Its Potential Regulatory Factorsin in Tobacco Planting Areas of Shiping County

ZHANG Guangdong1(), SHANG Zhiwei1, ZHAO Mengdi1, YANG Chunhua1, WANG Ting1, RUAN Haiming1, ZHANG Xuefeng1, ZHOU Fangfang2()   

  1. 1 Honghe Tobacco Company, Honghe, Yunan 652300
    2 College of Plant Protection, Yunan Agriculutre University, Kunming 650201
  • Received:2024-04-07 Revised:2025-03-12 Published:2025-04-25 Online:2025-04-24

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摘要： 以石屏县主要植烟乡镇为研究区，探究石屏县植烟土壤pH空间分布特征及其潜在影响因素，旨在为石屏县植烟土壤优化及改良提供依据。本研究采集了石屏县6个主要植烟乡镇226个植烟土壤样品，分析了石屏县植烟土壤pH空间分布特征及其潜在影响因素。结果表明：石屏县植烟土壤pH具有明显的空间差异性，表现为北低南高、西高东低的变化趋势。进一步分析发现，结构性因素海拔对土壤pH具有显著影响，土壤养分中有机质、交换性钙、速效钾、交换性镁对土壤pH具有显著正相关关系，土壤有效磷、有效铜、有效铁含量与土壤pH呈显著负相关关系。基于此，构建土壤pH与显著相关养分因子的结构方程模型，发现交换性钙作用位点最多，不仅直接影响土壤pH，还能促进有机质、速效钾、交换性镁含量间接调控土壤pH。有效铜和有效磷对pH起直接负调控作用，有效铁通过促进有效铜含量间接影响土壤pH。综上所述，土壤养分对土壤pH具有正向或负向调控作用，其中交换性钙对土壤pH具有直接和间接两方面正向调控作用，有机质、速效钾对土壤pH具有直接正向调控作用，有效铜、有效磷呈直接负调控作用，有效铁呈间接负调控作用，能够为土壤酸碱度调控提供参考。

关键词: 土壤pH, 空间分布, 海拔, 土壤类型, 土壤养分

Abstract:

The pH spatial distribution characteristics and its potential influencing factors were explored in Shiping County to provide a basis for the optimization and improvement of the soil. 226 soil samples were collected from 6 main tobacco-planting towns in Shiping County. The spatial distribution characteristics of pH and its possible intrinsic factors were analyzed. The results showed that soil pH showed obvious spatial difference in Shiping. The soil pH was low in the north and high in the south, high in the west and low in the east. And altitude had significant effects on soil pH. Organic matter, exchangeable calcium, available potassium and exchangeable magnesium had a significant positive relationship with pH, and the effective phosphorus, effective copper, and effective iron showed a significant negative correlation with soil pH. Based on this, the structural equation model of soil pH and significantly related nutrient factors was constructed. It was found that the exchangeable calcium had the most action sites, which not only directly affected soil pH, but also promoted the content of organic matter, available potassium and exchangeable magnesium to indirectly regulate soil pH. Effective copper and phosphorus played a direct negative role on pH, and effective iron indirectly affected soil pH by promoting effective copper content. Above all, the soil nutrient had positive or negative effects on soil pH. Changeable calcium had direct and indirect effects on soil pH. Organic matter and available potassium had positive effects on soil pH. Effective copper and phosphorus played a direct negative role on pH and effective iron indirectly affected soil pH. It could provide a reference for soil pH regulation.

Key words: soil pH, spatial distribution, altitude, soil type, soil nutrients