Soil trenching – are microbial communities alike in experimental peatland plots measuring total and heterotrophic respiration?

IF 9.8 1区农林科学 Q1 SOIL SCIENCE

Soil Biology & Biochemistry Pub Date : 2025-02-13 DOI:10.1016/j.soilbio.2025.109747

Hannu Fritze , Jyrki Jauhiainen , Arta Bārdule , Aldis Butlers , Dovilė Čiuldienė , Muhammad Kamil-Sardar , Ain Kull , Raija Laiho , Andis Lazdiņš , Valters Samariks , Thomas Schindler , Kaido Soosaar , Egidijus Vigricas , Krista Peltoniemi

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Abstract

Soil trenching is a generally applied method used to differentiate heterotrophic respiration (R_HET) from total respiration in soil CO₂ flux data collection. However, the soil microbial community composition may change due to trenching and estimates of the impacts of any human-induced disturbance on R_HET might be inflated if the microbial community involved was not the same as in the ambient untrenched environment. Here, we report that the bacterial and fungal community, as measured by amplicon sequencing, of 30 different research sites in peatland forests was mostly alike in trenched and untrenched plots still four years after trenching. Soil trenching thus seems to be a feasible method to study the R_HET from peatland forest soils from the overall microbial community composition point of view as no major changes were observed.

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土壤沟槽-测量总呼吸和异养呼吸的实验泥炭地的微生物群落相似吗？

土壤沟槽是土壤CO2通量数据采集中常用的一种区分异养呼吸（RHET）和全呼吸的方法。然而，土壤微生物群落组成可能会因沟槽而发生变化，如果涉及的微生物群落与周围非沟槽环境不同，则任何人为干扰对RHET影响的估计可能会被夸大。在这里，我们报告了通过扩增子测序测量的泥炭地森林30个不同研究点的细菌和真菌群落，在挖沟和未挖沟的地块中，在挖沟四年后大部分相似。因此，从整体微生物群落组成的角度来看，土壤挖沟似乎是研究泥炭地森林土壤RHET的一种可行方法，因为没有观察到大的变化。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Soil Biology & Biochemistry 农林科学-土壤科学

CiteScore

16.90

自引率

9.30%

发文量

312

审稿时长

49 days

期刊介绍： Soil Biology & Biochemistry publishes original research articles of international significance focusing on biological processes in soil and their applications to soil and environmental quality. Major topics include the ecology and biochemical processes of soil organisms, their effects on the environment, and interactions with plants. The journal also welcomes state-of-the-art reviews and discussions on contemporary research in soil biology and biochemistry.