茶园丛枝菌根真菌群落和土壤有机碳对镁肥的响应

doi:10.17521/cjpe.2025.0321

• •

茶园丛枝菌根真菌群落和土壤有机碳对镁肥的响应

何正嘉, 曾歆然, 王琳影, 薛昕宇, 苏钦泽, 李宇, 张寅杰, 吴辉煌, 陈成聪, 吴良泉, 魏安妮, 仇云鹏, 郭梨锦

国际镁营养研究所福建农林大学资源与环境学院,, 福建 350002 中国
林学院福建农林大学, 福建 350002 中国
公共管理与法学院福建农林大学, 福建 350002 中国
国家茶叶质量安全工程技术研究中心福建省安溪铁观音集团, 福建 362000 中国
农学院福建农林大学, 福建 350002 中国
草业学院南京农业大学, 江苏 210008 中国

收稿日期:2025-08-30 修回日期:2025-09-09
基金资助:
“碳中和”茶园建设项目(KH250054A)

Response of Arbuscular Mycorrhizal Fungal Communities and Soil Organic Carbon to Magnesium Fertilization in Tea Plantations

He Zhengjia, Zeng Xinran, Wang Linying, Xue Xinyu, Su Zeyu, Li Yu, Zhang yinjie, Wu Huihuang, Chen Chengcong, Wu Liangquan, Wei Anni, Qiu Yunpeng, Guo Lijin

College of Resources and Environment, Fujian Agriculture and Forestry University, International Magnesium Institute 350002, China
Fujian Agriculture and Forestry University, College of Forestry 350002, China
Fujian Agriculture and Forestry University, School of Public Administration and Law 350002, China
Anxi Tieguanyin Group of Fujian Province, National Engineering Research Center for Tea Quality and Safety 362000, China
Fujian Agriculture and Forestry University, College of Agriculture 350002, China
Nanjing Agricultural University, College of Grassland Science 210008, China

Received:2025-08-30 Revised:2025-09-09
Supported by:
Supported by Youth Project of the National Natural Science Foundation of China(42407365); The "Carbon neutral" tea garden construction project (KH250054A) and Natural Science Foundation of Jiangsu Province(BK20240193)

摘要/Abstract

摘要： 土壤有机碳(Soil organic carbon, SOC)是维持茶园土壤健康与肥力的重要成分，其固定过程与丛枝菌根真菌(Arbuscular mycorrhizal fungi, AMF)密切相关。然而，目前对于茶园AMF群落组成及其SOC积累对镁肥的响应机制尚不清晰。本研究依托福建省安溪县7年镁肥施用长期定位铁观音茶园试验基地，设置四组七水合硫酸镁施用梯度处理：Mg0(0 kg ha-1，对照)、Mg50(17.5 kg ha-1)、Mg100(35 kg ha-1)和Mg200(70 kg ha-1)，旨在揭示茶园丛枝菌根真菌群落和土壤有机碳对镁肥的响应。结果显示：与Mg0相比，Mg50、Mg100和Mg200显著提高土壤SOC含量(7.8%、11.7%和14.8%)、交换性Mg2+含量(1370%、2351%和2746%)、土壤pH值(2.3%、2.8%和4.2%)、土壤可溶性有机碳含量(3.5%、3.3%和4.0%)、修剪凋落物量(6.1%、13.9%和20.2%)和Glomus属相对丰度(59.5%、75.4%和37.3%)。结构方程模型表明，镁肥主要通过两条路径协同促进SOC固存：一是通过改善土壤理化性质，促进作物生长增加碳源输入；二是通过优化AMF群落结构并增强Glomus的功能贡献。本研究阐明了镁肥通过调控土壤微环境和AMF群落提升茶园碳固存的双路径机制，为茶园生态系统实现“碳中和”提供了理论依据和技术途径。

关键词: 丛枝菌根真菌, 土壤有机碳, 镁肥, 茶园

Abstract: Aims Soil organic carbon (SOC) is a crucial component for maintaining soil health and fertility in tea plantations, and its fixation process is closely associated with arbuscular mycorrhizal fungi (AMF). However, the response mechanisms of AMF community composition and SOC accumulation to magnesium fertilization in tea plantations remain poorly understood. Methods This study utilizes a 7-year long-term experimental site in Anxi County, Fujian Province, focused on Tieguanyin tea plantations with continuous Mg fertilization. Four gradient treatments of magnesium sulfate heptahydrate (MgSO4·7H2O) application were implemented: Mg0 (0 kg ha-1, control), Mg50 (17.5 kg ha-1), Mg100 (35 kg ha-1), and Mg200 (70 kg ha-1). The research aims to elucidate the responses of both AMF communities and soil organic carbon to Mg fertilization in the tea plantation ecosystem. Important findings Compared to Mg0, Mg50, Mg100, and Mg200 significantly increased soil SOC content (by 7.8%, 11.7%, and 14.8%), exchangeable Mg2+ content (by 1370%, 2351%, and 2746%), soil pH (by 2.3%, 2.8%, and 4.2%), dissolved organic carbon content (by 3.5%, 3.3%, and 4.0%), pruning litter yield (by 6.1%, 13.9%, and 20.2%), and the relative abundance of the genus Glomus (by 59.5%, 75.4%, and 37.3%). Structural equation modeling revealed that magnesium fertilization promotes SOC sequestration synergistically through two main pathways: firstly, by improving soil physicochemical properties and stimulating plant growth to enhance carbon input; and secondly, by optimizing the AMF community structure and strengthening the functional contribution of Glomus. This study elucidates the dual-pathway mechanism through which magnesium fertilization enhances carbon sequestration in tea plantations by regulating the soil microenvironment and AMF communities, providing a theoretical foundation and practical strategies for achieving carbon neutrality in tea garden ecosystems.

Key words: Arbuscular mycorrhizal fungi, Soil organic carbon, Magnesium fertilizer, Tea garden

何正嘉, 曾歆然, 王琳影, 薛昕宇, 苏钦泽, 李宇, 张寅杰, 吴辉煌, 陈成聪, 吴良泉, 魏安妮, 仇云鹏, 郭梨锦. 茶园丛枝菌根真菌群落和土壤有机碳对镁肥的响应. . DOI: 10.17521/cjpe.2025.0321

He Zhengjia, Zeng Xinran, Wang Linying, Xue Xinyu, Su Zeyu, Li Yu, Zhang yinjie, Wu Huihuang, Chen Chengcong, Wu Liangquan, Wei Anni, Qiu Yunpeng, Guo Lijin. Response of Arbuscular Mycorrhizal Fungal Communities and Soil Organic Carbon to Magnesium Fertilization in Tea Plantations. Chinese Journal of Plant Ecology. DOI: 10.17521/cjpe.2025.0321

导出引用管理器 EndNote|Ris|BibTeX

链接本文: https://www.plant-ecology.com/CN/10.17521/cjpe.2025.0321

[1]	李文竹, 栾军伟, 邸雅平, 王一, 陈志成, 聂秀青, 刘世荣. 模拟干旱对菌根介导下暖温带锐齿栎林土壤酶活性和土壤有机碳组分的影响[J]. , 2026, 50(菌根生态学): 0-.
[2]	王梦雪, 胡明艳, 储诚进, 陈阳, 罗文启, 马子龙. 亚热带森林不同菌根真菌树种叶片和细根的C、N、P化学计量特征[J]. 植物生态学报, 2025, 50(化学计量与功能性状): 1-.
[3]	张法伟, 李红琴, 祝景斌, 樊博, 周华坤, 李英年, 梁乃申. 氮添加和降水改变对高寒草甸生态系统地上与地下碳储的影响[J]. 植物生态学报, 2025, 49(9): 1-.
[4]	范亚冉, 夏少攀, 于冰冰, 朱紫琪, 杨威, 范豫川, 刘晓雨, 张旭辉, 郑聚锋. 大气CO₂浓度升高和增温对土壤有机碳库积累、分子组成和结构稳定性的影响[J]. 植物生态学报, 2025, 49(7): 1053-1069.
[5]	张斌, 张浩成, 乔天, 吕治兵, 许亚男, 李雪芹, 原向阳, 冯美臣, 张美俊. 接种丛枝菌根真菌对干旱胁迫燕麦非结构性碳水化合物及碳氮磷化学计量特征的影响[J]. 植物生态学报, 2025, 49(7): 1082-1095.
[6]	杜淑辉, 褚建民, 段俊光, 薛建国, 徐磊, 徐晓庆, 王其兵, 黄建辉, 张倩. 木质素酚类物质对内蒙古退化草地土壤有机碳的影响[J]. 植物生态学报, 2025, 49(1): 30-41.
[7]	彭思瑞, 张慧玲, 孙兆林, 赵学超, 田鹏, 陈迪马, 王清奎, 刘圣恩. 长期凋落物去除对亚热带杉木林土壤有机碳及其组分的影响[J]. 植物生态学报, 2024, 48(8): 1078-1088.
[8]	陈科宇, 邢森, 唐玉, 孙佳慧, 任世杰, 张静, 纪宝明. 不同草地类型土壤丛枝菌根真菌群落特征及其驱动因素[J]. 植物生态学报, 2024, 48(5): 660-674.
[9]	胡蝶, 蒋欣琪, 戴志聪, 陈戴一, 张雨, 祁珊珊, 杜道林. 丛枝菌根真菌提高入侵杂草南美蟛蜞菊对除草剂的耐受性[J]. 植物生态学报, 2024, 48(5): 651-659.
[10]	秦文宽, 张秋芳, 敖古凯麟, 朱彪. 土壤有机碳动态对增温的响应及机制研究进展[J]. 植物生态学报, 2024, 48(4): 403-415.
[11]	王梁, 赵学超, 杨少博, 王清奎. 杉木叶和细根诱导的土壤有机碳分解激发效应及其对氮添加的响应[J]. 植物生态学报, 2024, 48(11): 1434-1444.
[12]	张玉, 杜婷, 陈玉莲, 朱和萌, 谭波, 游成铭, 张丽, 徐振锋, 李晗. 冻融作用对亚高山森林土壤有机碳组分中不同凋落物源碳贡献的影响[J]. 植物生态学报, 2024, 48(11): 1422-1433.
[13]	张嘉睿, 段晓洋, 兰天翔, 苏日高格, 刘林, 郭钟阳, 吕浩然, 张炜平, 李隆. 植物多样性对土壤有机碳及其稳定性影响的研究进展[J]. 植物生态学报, 2024, 48(11): 1393-1405.
[14]	陈保冬, 付伟, 伍松林, 朱永官. 菌根真菌在陆地生态系统碳循环中的作用[J]. 植物生态学报, 2024, 48(1): 1-20.
[15]	张英, 张常洪, 汪其同, 朱晓敏, 尹华军. 氮沉降下西南山地针叶林根际和非根际土壤固碳贡献差异[J]. 植物生态学报, 2023, 47(9): 1234-1244.