Bacterial, fungal, and mycorrhizal communities in the soil differ between clearcuts and insect outbreaks in the boreal forest 50 years after disturbance

Bell-Doyon, Philip; Bellavance, Virginie; Bélanger, Louis; Mazerolle, Marc J.; Villarreal, Juan Carlos

doi:10.1016/j.foreco.2022.120493

Cited by 4 publications

(3 citation statements)

References 41 publications

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“…Changes in bacterial and fungal community structures and functions were also found after 25 years of water-shedding of forest soils [30]. Long-term changes in the soil microbiome have also been noted after curing insect infestations [31]. Although current soil conditions undoubtedly affect the composition of the microbiome, experiments with long-term sustained productivity have demonstrated that fertilizers can alter bacterial and fungal communities in soils not only after 25 years [29], but even after 60 years of continuous forest management of Pinus radiata [32].…”

Section: Discussionmentioning

confidence: 91%

Organic Inputs Positively Alter the Bacteriome of Post-Agricultural Soils

Malewski,

Borowik,

Golińska

et al. 2023

Forests

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Agriculture can degrade soils and reduce microbial diversity. The reduction in microbial diversity of degraded soils is due to their long-term agricultural use. In most cases, such areas are afforested but rarely succeed in converting them into first-generation pine forests without adequately revitalizing the soils and restoring the natural relationships characteristic of forest habitats. This is possible thanks to the positive changes in soil biodiversity. To facilitate and enhance this phenomenon in the present experiment, various forms of organic matter were added to the soil: pine bark compost scattered on the soil surface (BCS) or placed under the roots of the seedlings at planting (BCR), woody debris (WW) and sawdust (S), while the control plot was not treated. The studies started in 2001 on two experimental plots, a poorer one in Bielsk and a more fertile one in Czarne Człuchowskie (eastern and northern Poland, respectively). The following year, 2-year-old pine seedlings (Pinus sylvestris L.) were planted on the plots. After 20 years, the physicochemical properties of the soil and its microbial composition were determined and compared with the control. The results encourage the use of organic matter for established pine forest crops on post-agricultural land for revitalization: C, N, and P content increased both in the organic layer and in the topsoil (up to 40 cm), where most fine roots are located. The total content of exchangeable base cations (Ca, Mg, K) and the sorption capacity of the soils (a measure of the ion binding capacity of the soil) also improved. The genetic analyses carried out using the molecular method (NGS) showed positive changes in the composition of the soil microbiome. Compared to poorer soil conditions in richer habitats, the number of taxa increases when organic matter is added, leading to significant qualitative changes in the bacteriome. The addition of organic material from the forest had a positive effect on the bacterial communities, which in turn accelerated the changes in the diversity of bacteriomes characteristic of agricultural soils and brought them closer to the forest ecosystem. The organic horizon was restored, and at the same time, the biodiversity of the soil microbiome increased, which is important for the health and sustainability of pine stands on formerly agricultural land.

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Section: Discussionmentioning

confidence: 91%

Organic Inputs Positively Alter the Bacteriome of Post-Agricultural Soils

Malewski,

Borowik,

Golińska

et al. 2023

Forests

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“…The soil organic matter decomposed by soil microorganisms (including fungi) contributes directly to the soil organic matter and, through the soil microbial biomass, can increase the SOC stock [19][20][21]. While there have been a lot of studies on the soil microbes in the topsoil (0-20 cm) [22][23][24], it is also important to obtain knowledge on the soil microbes in the deeper soil layers, and on the abundance and diversity of the microbes through the entire soil profile. Bacterial and fungal communities vary significantly across soil layers [25], with the saprotrophs that prevail in the deeper soil layers expanding the ability of nutrient transformation and uptake [26,27].…”

Section: Introductionmentioning

confidence: 99%

Soil Fungi and Soil Organic Carbon Stocks in the Profile of a Forest Arenosol

Ankuda,

Sivojienė,

Armolaitis

et al. 2024

Diversity

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To help solve the actual problem of global climate warming, it is important to comprehensively study soil organic carbon (SOC), soil fungi, and other parameters at different depths in the soil. This study was aimed at investigating the chemical and microbiological parameters and their interactions at various soil depths (0–5 to 195–200 cm) in an Arenosol in a Scots pine stand in southwestern Lithuania, with a focus on the main groups of fungi and their influence on SOC. The highest diversity of soil fungi species was found at a depth of 50–55 cm. Saprotrophs were dominant at all investigated soil depths. Ectomycorrhizal fungi were mostly abundant at depths of up to 50–55 cm. The C:N ratio gradually decreased down to 50–55 cm, then increased in deeper soil layers (from 50–55 to 195–200 cm). This means that the most active mineralization processes occur at depths of between 0 and 55 cm. Carbon stabilization processes occur at depths of 100–105 to 195–200 cm, and most of this carbon does not enter the atmosphere nor contribute to the process of climate change.

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“…To restore degraded forests, a number of different approaches are used including artificial planting but also the utilization of natural or augmented secondary succession. The aim of restoration is to restore all aspects of material and nutrient cycling in forests, including biotic factors [1][2][3] and abiotic factors [4,5]. The restoration of nutrient cycling is due to the build-up of organic material within the ecosystem [6] and is strongly related to both the primary productivity, and thus the amount of organic matter entering the ecosystem [7], but also the quality of the plant material [8].…”

Section: Introductionmentioning

confidence: 99%

Response of Soil Aggregate Composition and Stability to Secondary Succession and Plantation of a Broad-Leaved Korean Pine Forest after Clear-Cutting and Its Causes

Wang,

Chen,

et al. 2023

Forests

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The composition and stability of soil aggregates are important characteristics for evaluating soil health. The objective of this study was to explore the effects of different restoration modes and secondary succession sequences of Korean pine on the stability of forest soil aggregates after clear cutting and their causes. The stability and composition of soil aggregates in 0–10 cm, 10–20 cm, and 20–40 cm were analyzed in four natural forests in the secondary succession sequence and a Pinus koraiensis plantation in the clear-cutting area of Liangshui National Nature Reserve, and the effects of forest community characteristics and cementing materials on these aggregates were explored. With the advancement of succession, the large soil water-stable aggregates and mechanical aggregates increased, and the stability increased. From the pioneer community to the top community, the proportion of macroaggregates in the soil mechanical aggregates in the 20–40 cm soil layer increased by 36%, while that in the water-stable aggregates in the 10–20 cm soil layer increased by 19%. Compared with plantation, the stability of soil aggregates in natural forests with a similar age was stronger. Water-stable aggregates were negatively correlated with bulk density, density, and porosity, and positively correlated with organic-matter-related cement. The volume of the dominant tree, litter yield, tree species diversity, biomass of various tree species, and litter biomass in the undecomposed layer were the key indicators affecting the stability of aggregates. In terms of restoration measures, natural restoration is better than plantations with a single tree species. In addition, succession makes forest soil aggregates more stable. The change of dominant tree species leads to changes in soil aggregate stability, and the effect of organic-related cementing material was stronger than that of iron oxide.

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Bacterial, fungal, and mycorrhizal communities in the soil differ between clearcuts and insect outbreaks in the boreal forest 50 years after disturbance

Cited by 4 publications

References 41 publications

Organic Inputs Positively Alter the Bacteriome of Post-Agricultural Soils

Organic Inputs Positively Alter the Bacteriome of Post-Agricultural Soils

Soil Fungi and Soil Organic Carbon Stocks in the Profile of a Forest Arenosol

Response of Soil Aggregate Composition and Stability to Secondary Succession and Plantation of a Broad-Leaved Korean Pine Forest after Clear-Cutting and Its Causes

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