The soil microbial necromass carbon and the carbon pool stability drive a stronge priming effect following vegetation restoration

Hao, Ming; Wang, Guifang; Yu, Qinghui; He, Yuan; Zhang, Zixu; Dun, Xingjian; Gao, Peng

doi:10.1016/j.jenvman.2023.119859

Journal of Environmental Management

2024

DOI: 10.1016/j.jenvman.2023.119859

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The soil microbial necromass carbon and the carbon pool stability drive a stronge priming effect following vegetation restoration

Ming Hao,

Guifang Wang,

Qinghui Yu

et al.

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Cited by 4 publications

References 81 publications

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Afforestation With Xerophytic Shrubs Promoted Soil Organic Carbon Stability in a Hyper‐Arid Environment of Desert

Zhao,

Tariq,

Zhang

et al. 2024

Land Degrad Dev

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In desert ecosystems, afforestation with xerophytic shrubs has the potential to significantly increase soil nutrient levels by mitigating wind and soil erosion. Nevertheless, further investigation is required to elucidate the changes in soil organic carbon (SOC) fractions and stability on different soil depths with afforestation years. We collected soil samples from the 0–20, 20–60, and 60–100 cm depths of three xerophytic shrublands ages (3, 7, and 10 years), with a natural desert as the control, in a hyper‐arid desert region. We investigated the variations of SOC fractions (stable and active C) and stability (stability index and MAOC:POC ratios) after afforestation. The results showed that the rate of increase in SOC fractions and stability did not follow a linear trajectory with afforestation years. Instead, they accelerated around 7 years but then decreased after 10 years. The increase in SOC stability was primarily attributed to the greater increase in stable C within the total SOC pool. Afforestation increased the concentration of ROC from 0.26 to 0.89 g kg−1 and MAOC from 0.11 to 0.78 g kg−1. Afforestation increased SOC stability by 74.36%–231% compared to the CK in the 0–100 cm. SOC stability in the 60–100 cm was higher than that in the 0–20 cm layer, while SOC stability varied insignificantly across soil layers. The strongest direct positive impact on SOC stability was attributed to changes in soil physicochemical properties rather than soil microbial biomass or aggregate stability. These findings contribute to our understanding of the importance of afforestation in increasing SOC stability in desert ecosystems.

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Afforestation With Xerophytic Shrubs Promoted Soil Organic Carbon Stability in a Hyper‐Arid Environment of Desert

Zhao,

Tariq,

Zhang

et al. 2024

Land Degrad Dev

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Contrasting forest management strategies: Impacts on biodiversity and ecosystem services under changing climate and disturbance regimes

Repo,

Albrich,

Jantunen

et al. 2024

Journal of Environmental Management

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Microbial necromass in soil profiles increases less efficiently than root biomass in long-term fenced grassland: Effects of microbial nitrogen limitation and soil depth

Wang,

Dou,

Liang

et al. 2024

Science of The Total Environment

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The soil microbial necromass carbon and the carbon pool stability drive a stronge priming effect following vegetation restoration

Cited by 4 publications

References 81 publications

Afforestation With Xerophytic Shrubs Promoted Soil Organic Carbon Stability in a Hyper‐Arid Environment of Desert

Afforestation With Xerophytic Shrubs Promoted Soil Organic Carbon Stability in a Hyper‐Arid Environment of Desert

Contrasting forest management strategies: Impacts on biodiversity and ecosystem services under changing climate and disturbance regimes

Microbial necromass in soil profiles increases less efficiently than root biomass in long-term fenced grassland: Effects of microbial nitrogen limitation and soil depth

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