Independence Effects of Heat and Ash on Forest Soil Nematode-Trapping Fungi Communities

Heat input and ash residues are main components of vegetation fire disturbances. Understanding the distinct impacts of heat and ash on soil microorganisms is crucial to comprehend and predict the induced changes in soil ecosystem composition and dynamics following different types of fire disturbance...

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Main Authors: Rong She, Hai-Qing Wang, Davide Fornacca, Fei-Teng Li, Fa Zhang, Yao-Quan Yang, Fa-Ping Zhou, Xiao-Yan Yang, Wen Xiao
Format: Article
Language:English
Published: MDPI AG 2023-01-01
Series:Fire
Subjects:
Online Access:https://www.mdpi.com/2571-6255/6/1/27
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author Rong She
Hai-Qing Wang
Davide Fornacca
Fei-Teng Li
Fa Zhang
Yao-Quan Yang
Fa-Ping Zhou
Xiao-Yan Yang
Wen Xiao
author_facet Rong She
Hai-Qing Wang
Davide Fornacca
Fei-Teng Li
Fa Zhang
Yao-Quan Yang
Fa-Ping Zhou
Xiao-Yan Yang
Wen Xiao
author_sort Rong She
collection DOAJ
description Heat input and ash residues are main components of vegetation fire disturbances. Understanding the distinct impacts of heat and ash on soil microorganisms is crucial to comprehend and predict the induced changes in soil ecosystem composition and dynamics following different types of fire disturbances. This study’s main goal was to track the dynamic shifts in the community of soil nematode-trapping fungi (NTF) following the separate disturbances of heat and ash by means of a specifically designed experiment conducted in the field. Four simulated fire treatments, one treatment reproducing natural burning, and one control treatment were taken into account. Every ten days following the disturbance, soil samples from each treatment were collected, and soil NTF and physicochemical characteristics were measured. The results showed that: (1) Heat drastically decreased the number of strains and heavily altered the NTF community, but it also encouraged the emergence of new NTF species. Instead, no overt changes were observed in the treatment that just experienced the addition of ash on the soil. (2) When compared to treatments that received only heat input, the lower strain count of NTF recovered more quickly in the natural burning treatment which was affected by both heat and ash input. These findings suggest that the disruptive effect of fire heat on soil NTF biomass may be counterbalanced by the emergence of new species and the repairing capabilities of new nutrients introduced by ash residue. In the future, both conventional and cutting-edge techniques should be considered in research designs to better understand the ecological role of fire disturbances occurring at different intensities, as well as the mechanisms that make soil ecosystems resilient to fire, in particular the role of new species.
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spelling doaj.art-4070e5319253443e9a6476481a5661ab2023-11-30T22:11:43ZengMDPI AGFire2571-62552023-01-01612710.3390/fire6010027Independence Effects of Heat and Ash on Forest Soil Nematode-Trapping Fungi CommunitiesRong She0Hai-Qing Wang1Davide Fornacca2Fei-Teng Li3Fa Zhang4Yao-Quan Yang5Fa-Ping Zhou6Xiao-Yan Yang7Wen Xiao8Institute of Eastern-Himalaya Biodiversity Research, Dali University, Dali 671003, ChinaInstitute of Eastern-Himalaya Biodiversity Research, Dali University, Dali 671003, ChinaInstitute of Eastern-Himalaya Biodiversity Research, Dali University, Dali 671003, ChinaInstitute of Eastern-Himalaya Biodiversity Research, Dali University, Dali 671003, ChinaInstitute of Eastern-Himalaya Biodiversity Research, Dali University, Dali 671003, ChinaInstitute of Eastern-Himalaya Biodiversity Research, Dali University, Dali 671003, ChinaInstitute of Eastern-Himalaya Biodiversity Research, Dali University, Dali 671003, ChinaInstitute of Eastern-Himalaya Biodiversity Research, Dali University, Dali 671003, ChinaInstitute of Eastern-Himalaya Biodiversity Research, Dali University, Dali 671003, ChinaHeat input and ash residues are main components of vegetation fire disturbances. Understanding the distinct impacts of heat and ash on soil microorganisms is crucial to comprehend and predict the induced changes in soil ecosystem composition and dynamics following different types of fire disturbances. This study’s main goal was to track the dynamic shifts in the community of soil nematode-trapping fungi (NTF) following the separate disturbances of heat and ash by means of a specifically designed experiment conducted in the field. Four simulated fire treatments, one treatment reproducing natural burning, and one control treatment were taken into account. Every ten days following the disturbance, soil samples from each treatment were collected, and soil NTF and physicochemical characteristics were measured. The results showed that: (1) Heat drastically decreased the number of strains and heavily altered the NTF community, but it also encouraged the emergence of new NTF species. Instead, no overt changes were observed in the treatment that just experienced the addition of ash on the soil. (2) When compared to treatments that received only heat input, the lower strain count of NTF recovered more quickly in the natural burning treatment which was affected by both heat and ash input. These findings suggest that the disruptive effect of fire heat on soil NTF biomass may be counterbalanced by the emergence of new species and the repairing capabilities of new nutrients introduced by ash residue. In the future, both conventional and cutting-edge techniques should be considered in research designs to better understand the ecological role of fire disturbances occurring at different intensities, as well as the mechanisms that make soil ecosystems resilient to fire, in particular the role of new species.https://www.mdpi.com/2571-6255/6/1/27fire disturbancefire factorsnematode-trapping fungi (NTF)community structurerestoration ecology
spellingShingle Rong She
Hai-Qing Wang
Davide Fornacca
Fei-Teng Li
Fa Zhang
Yao-Quan Yang
Fa-Ping Zhou
Xiao-Yan Yang
Wen Xiao
Independence Effects of Heat and Ash on Forest Soil Nematode-Trapping Fungi Communities
Fire
fire disturbance
fire factors
nematode-trapping fungi (NTF)
community structure
restoration ecology
title Independence Effects of Heat and Ash on Forest Soil Nematode-Trapping Fungi Communities
title_full Independence Effects of Heat and Ash on Forest Soil Nematode-Trapping Fungi Communities
title_fullStr Independence Effects of Heat and Ash on Forest Soil Nematode-Trapping Fungi Communities
title_full_unstemmed Independence Effects of Heat and Ash on Forest Soil Nematode-Trapping Fungi Communities
title_short Independence Effects of Heat and Ash on Forest Soil Nematode-Trapping Fungi Communities
title_sort independence effects of heat and ash on forest soil nematode trapping fungi communities
topic fire disturbance
fire factors
nematode-trapping fungi (NTF)
community structure
restoration ecology
url https://www.mdpi.com/2571-6255/6/1/27
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