基于最小数据集的曲靖市烤烟主产县植烟土壤质量评价及障碍因子诊断  

Evaluation of tobacco-planting soil quality and diagnosis of obstacle factors in main producing counties of flue-cured tobacco in Qujing city based on minimum data set

作　　者：吴勇 梁凯粼 李志刚[1] 张馨方 杨晓亮[1] 吕芳 曾婉莹 吴明[1] 赵光田 王鹏[1] 叶协锋 WU Yong;LIANG Kai-lin;LI Zhi-gang;ZHANG Xin-fang;YANG Xiao-liang;LYU Fang;ZENG Wan-ying;WU Ming;ZHAO Guang-tian;WANG Peng;YE Xie-feng(Wuhan Cigarette Factory of Hubei Tobacco Industry Co.,Ltd.,Wuhan 430000,China;College of Tobacco,Henan Agricultural University,National Tobacco Cultivation Physiological and Biochemical Research Base,Key Laboratory of Tobacco Industry Tobacco Cultivation,Zhengzhou 450046,China;Yunnan Tobacco Company Qujing City Company,Qujing,Yunnan 655000,China)

机构地区：[1]湖北中烟工业有限责任公司武汉卷烟厂,武汉430000 [2]河南农业大学烟草学院,国家烟草栽培生理生化研究基地,烟草行业烟草栽培重点实验室,郑州450046 [3]云南省烟草公司曲靖市公司,云南曲靖655000

出　　处：《西南农业学报》2024年第11期2485-2493,共9页Southwest China Journal of Agricultural Sciences

基　　金：湖北中烟科技项目(2023JSYL4WH2C023)。

摘　　要：【目的】通过评价云南省曲靖市烤烟主产县(区)植烟土壤质量状况,明确影响土壤改良的主要障碍因子,为该地区建立科学的植烟土壤质量评价体系提供理论依据。【方法】采集曲靖市3个烤烟主产县(区)共120份植烟土壤样品,选取pH、速效磷、速效钾、有机质、全碳、全氮、碱解氮和活性有机碳8项指标作为总数据集,通过构建最小数据集计算土壤质量指数,使用障碍因子诊断模型分析主要障碍因子。【结果】(1)根据主成分分析、相关性分析和Norm值计算结果,将pH、速效磷、有机质和活性有机碳选入最小数据集。(2)植烟土壤质量评价指标中特征值大于1的3个主成分累计贡献率为77.399%,能够代表大部分植烟土壤质量评价指标的信息;总数据集土壤质量指数和最小数据集土壤质量指数呈极显著正相关且两者变化趋势相似(R2=0.8361),即最小数据集可代表总数据集对曲靖市烤烟主产县植烟土壤质量进行评价。(3)沾益区、马龙区和师宗县最小数据集土壤质量指数分别为0.62、0.67和0.69,采样点90%土壤质量属于中上等水平,3个县(区)土壤变异强度低且适宜烤烟生长。(4)影响曲靖市烤烟主产县(区)植烟土壤改良的主要障碍因子分别为全碳和活性有机碳,其中沾益区主要障碍因子还包括全氮(障碍度20.75%)。【结论】建立的最小数据集可代表总数据集对曲靖市烤烟主产县(区)植烟土壤质量状况进行评价。通过土壤质量评价及障碍因子诊断,曲靖市烤烟主产县需根据实际情况制定相应栽培方案及耕作制度。【Objective】By evaluating the quality of tobacco-planting soil in the main producing counties(districts)of flue-cured tobacco in Qujing city,Yunnan Province,the main obstacle factors affecting soil improvement were clarified,which provided a theoretical basis for establishing a scientific evaluation system of tobacco-planting soil quality in this area.【Method】A total of 120 tobacco-planting soil samples were collected from three main tobacco-producing counties(districts)in Qujing city.Eight indicators,including pH value,available phosphorus,available potassium,organic matter,total carbon,total nitrogen,alkali-hydrolyzed nitrogen and active organic carbon,were selected as the total data set.The soil quality index was calculated by constructing the minimum data set,and the main obstacle factors were analyzed by using the obstacle factor diagnosis model.【Result】(i)According to the results of principal component analysis,correlation analysis and Norm value calculation,the pH value,available phosphorus,organic matter and active organic carbon were selected into the minimum data set.(ii)The cumulative contribution rate of the three principal components with eigenvalues greater than 1 in the evaluation indexes of tobacco-planting soil quality was 77.399%,which could represent the information of most evaluation indexes of tobacco-planting soil quality.The soil quality index of the total data set was significantly positively correlated with the soil quality index of the minimum data set,and the trend of the two was similar(R^(2)=0.8361),that was,the minimum data set could represent the total data set to evaluate the soil quality of the main flue-cured tobacco producing counties in Qujing city.(iii)The soil quality indexes of the minimum data set in Zhanyi district,Malong district and Shizong county were 0.62,0.67 and 0.69,respectively.The soil quality of 90%of the sampling points was at the upper-middle level.The soil variation intensity of the three counties(districts)was low and suitable for the growth of flu

关 键 词：植烟土壤 土壤质量 最小数据集 主成分分析 障碍因子 

分 类 号：S158[农业科学—土壤学]