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应用生态学报 ›› 2023, Vol. 34 ›› Issue (10): 2861-2870.doi: 10.13287/j.1001-9332.202310.013

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稳定同位素技术在土壤食物网研究中的应用

王骁1,3, 梁思维2, 田艺佳1,3, 刘笑彤1,3, 梁文举1, 张晓珂1*   

  1. 1中国科学院沈阳应用生态研究所, 沈阳 110016;
    2辽宁省农业科学院耕作与栽培研究所, 沈阳 110161;
    3中国科学院大学, 北京 100049
  • 收稿日期:2023-04-06 接受日期:2023-08-16 出版日期:2023-10-15 发布日期:2024-04-15
  • 通讯作者: * E-mail: zxk@iae.ac.cn
  • 作者简介:王 骁, 男, 1997年生, 博士研究生。主要从事土壤生态学研究。E-mail: wangxiao021@163.com
  • 基金资助:
    国家重点研发计划子课题(2022YFD1500601)、区域创新发展联合基金项目(U22A20501)、国家自然科学基金面上项目(41977054)、沈阳市科学技术计划项目(213552)、辽宁省现代保护性耕作研发与应用高水平创新创业团队(XLYC2008015)、辽宁省应用基础研究计划项目(2022JH2/101300184)和辽宁省博士科研启动基金计划项目(2021-BS-035)

Application of stable isotope techniques in soil food web research

WANG Xiao1,3, LIANG Siwei2, TIAN Yijia1,3, LIU Xiaotong1,3, LIANG Wenju1, ZHANG Xiaoke1*   

  1. 1Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China;
    2Tillage and Cultivation Research Institute, Liaoning Academy of Agricultural Sciences, Shenyang 110161, China;
    3University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2023-04-06 Accepted:2023-08-16 Online:2023-10-15 Published:2024-04-15

摘要: 稳定同位素技术的发展为深入揭示地下黑箱-土壤食物网的结构和功能提供了重要的方法和手段。本文回顾了稳定同位素技术在土壤食物网研究中的应用,主要包括利用同位素确定土壤动物的食源和食性偏好;通过土壤动物取食与固持养分过程中的同位素分馏效应,分析土壤食物网的营养级结构;此外,稳定同位素技术还揭示了土壤食物网各营养级土壤生物在土壤生态系统物质能量流动中的作用,有助于准确高效地开展土壤食物网在土壤碳氮循环过程中的贡献及作用机理研究。本文同时指出了目前稳定同位素技术的局限性,展望了未来重点发展的方向。

关键词: 稳定同位素, 土壤食物网, 捕食关系, 营养级, 碳氮循环

Abstract: Stable isotope technique is important for understanding the structure and function of soil food web, which is considered as a belowground black box. We reviewed typical application cases of stable isotope techniques in the research of soil food webs, including to determine food sources and feeding preferences of soil fauna by using isotopes, and to analyze the trophic structure of soil food webs through isotope fractionation effects during the process of feeding and nutrient sequestration by soil fauna. Additionally, stable isotope techniques could reveal the role of soil biota at different trophic levels within soil food web in ecosystem matter and energy flow, which favored to carry out accurate and efficient research on the contribution of soil food webs to soil carbon and nitrogen cycling process and the corresponding influence mechanism. We further put forward the limitations of current stable isotope techniques and the future development directions.

Key words: stable isotope, soil food web, predatory relationship, trophic level, carbon and nitrogen cycles