Effects of warming, wetting and nitrogen addition on substrate-induced respiration and temperature sensitivity of heterotrophic respiration in a temperate forest soil

Moonis, Mohammad; Lee, Jong Kyu; Jin, Hyojin; Kim, Dong-Gill; Park, Ji‐Hyung

doi:10.1016/s1002-0160(20)60069-8

Cited by 13 publications

(3 citation statements)

References 76 publications

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“…For example, Jiang et al (2013) observed a reduction in Q 10 of soil respiration in a mixed broad-leaved forest when simulated precipitation was doubled from ambient levels. Moonis et al (2021) found an opposite result that wetting treatment (50% water-lled pore space) increased Q 10 by 25.0%. A laboratory study found that the highest Q 10 of R h occurred at intermediate soil moisture levels (45%WHC), but the nature of this interaction varied between two different soils (Craine and Gelderman 2011).…”

Section: )mentioning

confidence: 87%

Soil Organic Carbon Mineralization and its Temperature Sensitivity Along a Vegetation Restoration Gradient in Subtropical China

Fang

Sun

Huang

et al. 2021

Preprint

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Background and aims Soil organic carbon (SOC) mineralization produces important CO2 flux from terrestrial ecosystems which can provide feedbacks to climates. Vegetation restoration can affect SOC mineralization and its temperature sensitivity (Q10), but how this effect is related to soil moisture remains uncertain. Methods We performed a laboratory incubation using soils of different vegetation restoration stages (i.e., degraded vegetation [DS], plantation [PS], and secondary natural forest [SFS]) maintained under different moisture and temperature conditions to explore the combined effects of vegetation restoration and soil moisture on SOC mineralization and Q10. Results We found that cumulative SOC mineralization in PS and SFS were about 11.7 times higher than that in the DS, associated with higher SOC content and microbial biomass. Increased soil moisture and temperature led to higher SOC mineralization in the SFS and PS. However, in the DS, soil moisture did not affect SOC mineralization, but temperature enhancement solely increased (158.7%) SOC mineralization at the 60%MWHC treatment. Furthermore, significant interactive effect of vegetation restoration and soil moisture on Q10 was detected. At the 60%MWHC treatment, Q10 declined with vegetation restoration age. Nevertheless, at the 30%MWHC treatment, Q10 was lower in the DS than that in the PS. Higher soil moisture did not affect Q10 in the PS and SFS, but enhanced Q10 in the DS. Conclusions Our results highlight that the responses of SOC mineralization and Q10 to vegetation restoration were highly dependent on soil moisture and substrate availability, and vegetation restoration reduced the influence of soil moisture on Q10.

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Section: )mentioning

confidence: 87%

Soil Organic Carbon Mineralization and its Temperature Sensitivity Along a Vegetation Restoration Gradient in Subtropical China

Fang

Sun

Huang

et al. 2021

Preprint

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“…Additionally, terrestrial ecosystems and their carbon dynamics significantly impact the global carbon budget [ 4 ]. Most studies have suggested that the changes in soil carbon content are associated with different types of land use [ 5 , 6 ] and different soil moisture and temperature conditions [ 7 , 8 ]. Better understanding of the dynamics of terrestrial SOC in different ecosystems is essential to determine SOC decomposition and turnover.…”

Section: Introductionmentioning

confidence: 99%

“…One of the most important drivers affecting SOC mineralization is soil temperature, which might be considered a driver of organic matter turnover in soils [ 1 ]. The temperature dependence of SOC mineralization, which is the key source of soil heterotrophic respiration, has been the subject of intense scientific debate [ 8 ]. Liu et al [ 11 ] suggested that elevated temperature resulted in an exponential reduction in dissolved organic carbon (DOC).…”

Section: Introductionmentioning

confidence: 99%

Soil Organic Carbon Mineralization and Its Temperature Sensitivity under Different Substrate Levels in the Mollisols of Northeast China

Sui

Chen

et al. 2022

Life

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Soil organic carbon (SOC) mineralization plays an important role in global climate change. Temperature affects SOC mineralization, and its effect can be limited by the substrate available. However, knowledge of the effects of temperature and substrate quality on SOC mineralization in the Mollisols of Northeast China is still lacking. In this study, based on a spatial transplant experiment, we conducted a 73-day incubation to examine the effects of temperature on SOC mineralization and its temperature sensitivity under different carbon levels. We found that the SOC content, incubation temperature and their interaction had significant effects on SOC mineralization. A higher SOC content and higher incubation temperature resulted in higher SOC mineralization. The temperature sensitivity of SOC mineralization was affected by the substrate quality. The temperature sensitivity of SOC mineralization, showed a downward trend during the incubation period, and the range of variation in the Q10 declined with the increment in the SOC content. The study suggested that there was a higher SOC mineralization in high levels of substrate carbon when the temperature increased. Further, SOC mineralization under higher SOC contents was more sensitive to temperature changes. Our study provides vital information for SOC turnover and the CO2 sequestration capacity under global warming in the Mollisols of Northeast China and other black soil regions of the world.

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Environmental co-limitation on temperature responses of greenhouse gas production in floodplain sediments

Zhumabieke,

Huh,

Lee

et al. 2024

Biogeochemistry

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Effects of warming, wetting and nitrogen addition on substrate-induced respiration and temperature sensitivity of heterotrophic respiration in a temperate forest soil

Cited by 13 publications

References 76 publications

Soil Organic Carbon Mineralization and its Temperature Sensitivity Along a Vegetation Restoration Gradient in Subtropical China

Soil Organic Carbon Mineralization and its Temperature Sensitivity Along a Vegetation Restoration Gradient in Subtropical China

Soil Organic Carbon Mineralization and Its Temperature Sensitivity under Different Substrate Levels in the Mollisols of Northeast China

Environmental co-limitation on temperature responses of greenhouse gas production in floodplain sediments

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