Rapid transfer of C and N excreted by decomposer soil animals to plants and above-ground herbivores

Shutenko, Ganna S.; Andriuzzi, Walter S.; Dyckmans, Jens; Luo, Yu; Wilkinson, T. L.; Schmidt, Olaf

doi:10.1016/j.soilbio.2022.108582

Cited by 17 publications

(5 citation statements)

References 46 publications

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“…The reduction in soil total carbon content may also be related to soil invertebrates. Soil invertebrates can strongly fragment and break down soil organic matter, converting it into compounds that are readily available to plants and easily mineralized, which leads to a reduction in soil TC content [22]. C/N ratio is an important indicator to characterize soil quality, and the stability of the C/N ratio is important in relation to soil health as well as plant growth.…”

Section: Effect Of Nitrogen Addition On Soil Chemistrymentioning

confidence: 99%

Nitrogen Deposition May Benefit to Larix olgensis Root Soils

Zhao

et al. 2023

Forests

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Atmospheric nitrogen deposition affects the health of forest ecosystems by altering soil microbial activity. However, the effects of nitrogen addition levels, morphology and ecosystem type on whether nitrogen addition is beneficial or detrimental to soil health is controver-sial, and most studies have focused on the negative effects on microbial structure. Based on this, this study conducted a four-year experiment of nitrogen (NaNO3) addition at two levels (10 and 20 kg N hm−2·yr−1) in the understory soil of Larix olgensis in northeastern China to study soil microbial properties, soil enzyme activities, and to analyze soil physi-cochemical properties and the correlation between them. The results showed that nitrogen addition reduced soil pH and increased soil NH4+-N and NO3−-N contents, thus promoting the activities of Urease (Ure), Acid phosphatase (ACP) and N-Acetamidoglucosidase (NAG) and inhibiting the activity of Leucine aminopeptidase (LAP) in soil, further improving the diversity and richness of soil microorganisms and increasing the dominant taxa of beneficial microorganisms. This may be due to soil acidification caused by the addition of nitrogen, which increases the effectiveness of nitrogen in the soil, improving soil properties, moving soil health in a beneficial direction, promoting beneficial microbial activity, and making the soil more suitable for the growth of the acid-loving tree species L. olgensis. In general, N addition favored the development of soil bacterial communities and the maintenance of soil nutrient status, and had a positive effect on the soil nutrient status of L. olgensis. The results of this study may provide an important scientific basis for adaptive management of forest ecosystems in the context of global nitrogen deposition.

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Section: Effect Of Nitrogen Addition On Soil Chemistrymentioning

confidence: 99%

Nitrogen Deposition May Benefit to Larix olgensis Root Soils

Zhao

et al. 2023

Forests

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“…Secondly, soil animals improve the utilization efficiency of soil nutrients by directly participating in the primary process of material circulation. For example, soil invertebrates can intensely break down and decompose soil organic matter, thus accelerating the mineralization process of organic matter and further leading to the decrease in TC content in soil [33]. Thirdly, high levels of N additions may exacerbate the soil carbon leaching process, leading to a potential decrease in TC content [32].…”

Section: Changes In Soil Properties Before and After Interruption Of ...mentioning

confidence: 99%

“…Studies have shown that Actinomycetes can promote microbial production of more lignocellulose hydrolases, thereby promoting the degradation of organic matter [33,44]. Acidobacteriota are often important contributors to the nutrient cycling system in soil microorganisms and are more likely to settle in soils with lower pH values [45].…”

Section: Changes In Soil Bacterial Structure At the Phylum Level Befo...mentioning

confidence: 99%

Interruption after Short-Term Nitrogen Additions Improves Ecological Stability of Larix olgensis Forest Soil by Affecting Bacterial Communities

Qu,

Zhao,

Yan

et al. 2024

Microorganisms

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Atmospheric nitrogen deposition can alter soil microbial communities and further impact the structure and function of forest ecosystems. However, most studies are focused on positive or negative effects after nitrogen addition, and few studies pay attention to its interruption. In order to investigate whether interruption after different levels of short-term N additions still benefit soil health, we conducted a 2-year interruption after a 4-year short-term nitrogen addition (10 and 20 kg N·hm−2·yr−1) experiment; then, we compared soil microbial diversity and structure and analyzed soil physicochemical properties and their correlations before and after the interruption in Larix olgensis forest soil in northeast China. The results showed that soil ecological stabilization of Larix olgensis forest further improved after the interruption compared to pre-interruption. The TN, C:P, N:P, and C:N:P ratios increased significantly regardless of the previous nitrogen addition concentration, and soil nutrient cycling was further promoted. The relative abundance of the original beneficial microbial taxa Gemmatimonas, Sphingomonas, and Pseudolabrys increased; new beneficial bacteria Ellin6067, Massilia, Solirubrobacter, and Bradyrhizobium appeared, and the species of beneficial soil microorganisms were further improved. The results of this study elucidated the dynamics of the bacterial community before and after the interruption of short-term nitrogen addition and could provide data support and a reference basis for forest ecosystem restoration strategies and management under the background of global nitrogen deposition.

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“…Research indicates that the environmental behaviors and toxicological effects of NPs are closely related to their surface charge (Sun et al, 2020). Moreover, as an indispensable soil invertebrate, earthworms play a significant role in regulating both microbial communities and nitrogen and carbon cycles (Shutenko et al, 2022). Therefore, for a comprehensive understanding of the environmental impacts of NPs, considering soil fauna is crucial when assessing the influences of NPs on ecosystem structures, processes, and functions.…”

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

Nanoplastics alter ecosystem multifunctionality and may increase global warming potential

Zhou

Bhagwat

et al. 2023

Global Change Biology

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The increasing plastic pollution is undoubtedly becoming a global problem (Borrelle et al., 2020;Stegmann et al., 2022). Owing to the poor management of plastic waste, the large plastic debris can be fragmented into microplastics (0.1 μm-5 mm) and nanoplastics (<0.1 μm) under the actions of mechanical abrasion, thermal/photodegradation, and biological degradation (Schiferle et al., 2023;Wang, Li, et al., 2023). Therefore, it is not surprising that microplastics (MPs) and nanoplastics (NPs) are detected in both urban and remote

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Rapid transfer of C and N excreted by decomposer soil animals to plants and above-ground herbivores

Cited by 17 publications

References 46 publications

Nitrogen Deposition May Benefit to Larix olgensis Root Soils

Nitrogen Deposition May Benefit to Larix olgensis Root Soils

Interruption after Short-Term Nitrogen Additions Improves Ecological Stability of Larix olgensis Forest Soil by Affecting Bacterial Communities

Nanoplastics alter ecosystem multifunctionality and may increase global warming potential

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