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中国农学通报 ›› 2025, Vol. 41 ›› Issue (23): 101-106.doi: 10.11924/j.issn.1000-6850.casb2025-0209

• 资源·环境·生态·土壤·气象 • 上一篇    

冻融循环对农田土壤微生物及酶活性的影响

关诗洋1(), 王耀2, 陈一民2, 焦晓光1()   

  1. 1 黑龙江大学现代农业与生态环境学院,哈尔滨 150080
    2 中国科学院东北地理与农业生态研究所,哈尔滨 150081
  • 收稿日期:2025-03-10 修回日期:2025-07-20 出版日期:2025-08-19 发布日期:2025-08-19
  • 通讯作者:
    焦晓光,女,1976年出生,黑龙江哈尔滨人,教授,博士,主要从事土壤生态学、植物营养学方面的研究。通信地址:150080 黑龙江省哈尔滨市南岗区学府路74号 黑龙江大学,Tel:0451-86604720,E-mail:
  • 作者简介:

    关诗洋,女,2000年出生,黑龙江哈尔滨人,在读研究生,研究方向:植物资源利用。通信地址:150080 黑龙江省哈尔滨市学府路74号 黑龙江大学,E-mail:

  • 基金资助:
    国家自然科学基金面上项目“冻融作用下秸秆还田后氮转化对农田黑土氮库更新机制的研究”(42077081); 科技基础资源调查专项“中国东北黑土区农田土壤资源与健康状况调查”(2021FY100400); 国家重点研发计划“黑土典型区土壤资源保护利用技术精准配置与示范”(2023YFD1500105)

Effects of Freeze-thaw Cycles on Soil Microbial Communities and Enzyme Activities in Agricultural Fields

GUAN Shiyang1(), WANG Yao2, CHEN Yimin2, JIAO Xiaoguang1()   

  1. 1 College of Advanced and Ecological Environment, Heilongjiang University, Harbin 150080
    2 Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin 150081
  • Received:2025-03-10 Revised:2025-07-20 Published:2025-08-19 Online:2025-08-19

摘要:

冻融作用是高纬度和高海拔等寒冷气候区特有的自然现象,其周期性的水热条件变化会显著影响土壤等环境介质的物理化学性质及生物学特性。冻融直接影响土壤微生物活性,并间接调控微生物介导的土壤过程,从而显著影响黑土农田生态系统的养分循环和作物生长。为揭示黑土冻融区农田土壤的养分循环机制,必须充分考虑冻融作用的影响。本文系统梳理了国内外相关研究成果,重点分析冻融作用对土壤微生物群落结构与功能以及土壤酶活性的影响,并探讨了冻融频次和强度对土壤性质的调控作用,为冻融气候条件下东北黑土土地资源的可持续利用与管理提供了理论参考。

关键词: 冻融循环, 土壤微生物, 酶活性, 农田土壤, 土地利用

Abstract:

Freeze-thaw cycling is a distinctive natural phenomenon prevalent in cold climate zones, including high-latitude and high-altitude regions. The periodic fluctuations in hydrothermal conditions associated with freeze-thaw processes exert substantial impacts on the physicochemical properties and biological characteristics of environmental media, particularly soils. These effects manifest through both direct and indirect mechanisms: freeze-thaw actions directly modulate soil microbial activity while simultaneously influencing microbially-mediated soil processes. Within the context of black soil farmland ecosystems, freeze-thaw cycling plays a pivotal role in nutrient cycling dynamics, thereby significantly affecting crop cultivation and growth. To elucidate the nutrient cycling processes in agricultural soil ecosystems within freeze-thaw affected black soil regions, it is imperative to account for the influence of freeze-thaw actions. This paper systematically synthesized relevant domestic and international research findings, with particular emphasis on analyzing advancements in understanding how freeze-thaw processes affect soil microbial community structure and function, as well as soil enzyme activities. Furthermore, we examined the effects of freeze-thaw frequency and intensity on soil properties. The insights derived from this review provide theoretical foundations for the sustainable utilization and management of black soil resources in Northeast China under freeze-thaw climate conditions.

Key words: freeze-thaw cycles, soil microorganisms, enzyme activity, agricultural soils, land use