碳循环与生态系统固碳

化肥减量配施生物炭对茉莉园土壤颗粒态有机碳的影响

  • 吴梓炜 ,
  • 杨发峻 ,
  • 彭家豪 ,
  • 曾瑜 ,
  • 王维奇
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  • 1.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, 福州 350117;
    2.闽榕茶业有限公司, 福州 350018
*王维奇(1982— ), 男, 满族, 辽宁沈阳人, 研究员, 博士, 研究方向为生态与环境, wangweiqi15@163.com

收稿日期: 2024-10-05

  网络出版日期: 2026-03-11

基金资助

农业农村部全球重要农业文化遗产申报与国际交流项目(12190036); 福州市科技计划项目(2021-N-288)

Effects of Chemical Fertilizer Reduction Combined with Biochar Application on Soil Particulate Organic Carbon in Jasminum Sambac Garden

  • WU Ziwei ,
  • YANG Fajun ,
  • PENG Jiahao ,
  • ZENG Yu ,
  • WANG Weiqi
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  • 1. Key Laboratory for Humid Subtropical Eco-Geographical Processes of the Ministry of Education, Fujian Normal University, Fuzhou 350117, China;
    2. Minrong Tea Co. , Ltd, Fuzhou 350018, China

Received date: 2024-10-05

  Online published: 2026-03-11

摘要

为阐明化肥减量配施生物炭对茉莉园土壤颗粒态有机碳(POC)及其影响因素的作用,在福州茉莉种植基地开展田间试验。设置对照、生物炭、化肥减量、化肥减量配施生物炭4种处理,分析土壤POC、植物及真菌群落特征。结果表明:1)化肥减量配施生物炭显著提高POC含量至11.60 g·kg-1,显著高于施加生物炭(6.68 g·kg-1)、化肥减量(5.66 g·kg-1)以及对照处理(4.16 g·kg-1),POC对全碳的贡献率达51.04%。且POC中多糖碳官能团特征峰显著增强;2)化肥减量配施生物炭处理下,植物根系碳氮含量显著增加,主成分分析显示POC与根系化学结构最为相似;3)各处理真菌群落组成结构相似,但化肥减量配施生物炭处理下镰刀菌属相对丰度显著降低(P<0.05)。Spearman相关性分析表明,POC与曲霉属、红酵母属等呈显著正相关(P<0.05),与Acidomyces以及兼性腐生营养型真菌呈显著负相关(P<0.05)。综上,化肥减量配施生物炭有利于提升土壤固碳能力并改善微生物的生长环境,是茉莉园可持续管理的适宜模式。

本文引用格式

吴梓炜 , 杨发峻 , 彭家豪 , 曾瑜 , 王维奇 . 化肥减量配施生物炭对茉莉园土壤颗粒态有机碳的影响[J]. 亚热带资源与环境学报, 2026 , 21(1) : 33 -42 . DOI: 10.19687/j.cnki.1673-7105.2026.01.004

Abstract

To elucidate the effects of chemical fertilizer reduction combined with biochar on soil particulate organic carbon(POC) and its influencing factors in Jasminum sambac gardens, a field experiment was conducted in Fuzhou.Four treatments were established: conventional fertilization, biochar application, chemical fertilizer reduction, and a combination of chemical fertilizer reduction and biochar application.Soil POC, plant characteristics, and fungal communities were analyzed.The results showed that, 1) chemical fertilizer reduction combined with biochar significantly increased soil POC content to 11.60 g·kg-1, which was significantly higher than biochar alone(6.68 g·kg-1), fertilizer reduction(5.66 g·kg-1), and the control(4.16 g·kg-1).The contribution of POC to total carbon reached 51.04%.Furthermore, the characteristic peaks of polysaccharide carbon functional groups in POC were significantly enhanced.2) Under this combined treatment, the carbon and nitrogen contents of plant roots increased significantly, and principal component analysis indicated that the chemical structure of POC was most similar to that of the roots.3) The fungal community structure was similar across treatments, but the relative abundance of Fusarium significantly decreased under the combined treatment(P<0.05).Spearman correlation analysis indicated that POC was significantly positively correlated with Aspergillus and Rhodotorula(P<0.05), but negatively correlated with Acidomyces and facultative saprotrophs(P<0.05).In conclusion, chemical fertilizer reduction combined with biochar enhances soil carbon sequestration and improves the microbial environment, making it a suitable management mode for sustainable jasmine cultivation.

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