福建不同岩茶产区土壤价态铁、铁细菌及理化因子关联性分析  

Correlation Analysis Between Iron Valence State,Iron Bacteria,and Physicochemical Properties of Soil in Various Fujian Rock Tea Production Areas

作　　者：李俊鹏 汤淑玲 吴映姿 叶婷娥 李先德[2] 张永勋 郑毅[1] 王维奇[3] LI Junpeng;TANG Shuling;WU Yingzi;YE Tinge;LI Xiande;ZHANG Yongxun;ZHENG Yi;WANG Weiqi(College of Life Sciences,Fujian Normal University,Fuzhou 350117,China;Institute of Agricultural Economics and Development,Chinese Academy of Agricultural Sciences,Beijing 100081,China;Key Laboratory of Humid Subtropical Eco-Geographical Process of Ministry of Education,Fujian Normal University,Fuzhou 350117,China)

机构地区：[1]福建师范大学生命科学学院,福建福州350117 [2]中国农业科学院农业经济与发展研究所,北京100081 [3]福建师范大学,湿润亚热带生态-地理过程教育部重点实验室,福建福州350117

出　　处：《环境科学研究》2025年第4期883-895,共13页Research of Environmental Sciences

基　　金：农业农村部全球重要农业文化遗产申报与国际交流项目(No.12190036)。

摘　　要：铁是茶树生长所必需的元素之一,该元素在土壤中受到微生物与其他相关因素的综合调控与影响。为探究福建不同岩茶产区土壤铁细菌群落特征及其影响因子,本研究以武夷山正岩茶、半岩茶和洲茶产区土壤为研究对象,分别测定土壤0~15 cm(上层)、15~30 cm(下层)价态铁含量和理化性质,并借助高通量测序技术对土壤铁细菌群落进行分析。结果表明:①武夷山正岩茶、半岩茶和洲茶产区下层土壤含水量分别为13.1%±0.4%、21.2%±1.1%和15.8%±2.1%,半岩茶产区下层土壤含水量显著高于正岩茶产区(p<0.05)。②武夷山正岩茶、半岩茶和洲茶产区上层土壤Fe(Ⅲ)含量分别为(0.17±0.10)(0.32±0.18)和(0.47±0.30)g/kg,下层土壤Fe(Ⅲ)含量分别为(0.19±0.13)(0.35±0.19)和(0.48±0.16)g/kg,洲茶产区各层土壤Fe(Ⅲ)含量显著高于正岩茶产区(p<0.05)。③在正岩茶产区,土壤中Fe(T)和Fe(Ⅱ)含量均与电导率呈显著负相关(p<0.05);在半岩茶产区,土壤含水量与容重呈显著负相关(p<0.05)。④铁氧化菌菌属Mariprofundus丰度与土壤pH呈显著正相关(p<0.05),铁还原菌菌属Bacteroides丰度与土壤含水量呈显著负相关(p<0.05),属水平上铁氧化菌和铁还原菌群落丰度分别与土壤Fe(Ⅲ)、Fe(Ⅱ)含量显著相关(p<0.05)。冗余分析表明,土壤容重和Fe(Ⅱ)含量是影响土壤铁细菌群落的主要因素。研究显示,武夷山岩茶产区土壤价态铁含量、铁细菌群落和理化性质三者之间存在一定程度的相互关联性。研究结果可为土壤铁代谢循环相关理论的进一步拓展提供参考。Iron is one of the essential elements for the growth of tea trees,and its dynamics in soil are intricately regulated and influenced by microorganisms and various related factors.To explore the characteristics of soil iron bacterial communities and their influencing factors in various rock tea production areas of Fujian Province,this study focused on soils from the Zhengyan tea,Banyan tea,and Zhou tea production areas in Mount Wuyi.The study measured the valence states of iron,iron content and physicochemical properties of soils at depths of 0-15 cm(upper layer)and 15-30 cm(lower layer).High-throughput sequencing technology was used to analyze the soil iron bacterial communities.The results are as follows:(1)The soil moisture content in the lower layer of the Zhengyan tea,Banyan tea,and Zhou tea production areas in Mount Wuyi were 13.1%±0.4%,21.2%±1.1%,and 15.8%±2.1%,respectively.In the upper layer,the soil moisture content in the Banyan tea production area was significantly higher than that in the Zhengyan tea production area(p<0.05).(2)The Fe(Ⅲ)content in the upper layer of the Zhengyan tea,Banyan tea,and Zhou tea production areas were(0.17±0.10),(0.32±0.18),and(0.47±0.30)g/kg,respectively.In the lower layer,the Fe(Ⅲ)contents were(0.19±0.13),(0.35±0.19)and(0.48±0.16)g/kg,respectively.The Fe(Ⅲ)content in the soils of the Zhou tea production area was significantly higher than that in the Zhengyan tea production area at all depths(p<0.05).(3)In the Zhengyan tea production area,both the Fe(T)and Fe(Ⅱ)contents in the soil showed a significant negative correlation with electrical conductivity(p<0.05).In the Banyan tea production area,soil moisture content was significantly negatively correlated with bulk density(p<0.05).(4)The abundance of the iron-oxidizing bacterial genus Mariprofundus showed a significant positive correlation with soil pH(p<0.05),while the abundance of the iron-reducing bacterial genus Bacteroides showed a significant negative correlation with soil moisture content(p<0.05).The abun

关 键 词：土壤理化因子 铁 铁氧化菌 铁还原菌 茶园 

分 类 号：X37[环境科学与工程—环境工程]