Responses of soil microbial communities to vegetation restoration on the Loess Plateau of China: A meta-analysis

Sha, Guoliang; Chen, Yuxuan; Wei, Tianxing; Guo, Xuhong; Yu, Haijia; Jiang, Shan; Xin, Pengcheng; Ren, Kang

doi:10.1016/j.apsoil.2023.104910

Applied Soil Ecology

2023

DOI: 10.1016/j.apsoil.2023.104910

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Responses of soil microbial communities to vegetation restoration on the Loess Plateau of China: A meta-analysis

Guoliang Sha

Yuxuan Chen

Tianxing Wei

et al.

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Cited by 6 publications

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“…Vegetation succession is a widely adopted strategy for ecosystem recovery with the capacity to rehabilitate degraded lands and facilitate the sequestration of soil organic matter in a semiarid region [ 2 , 3 , 4 , 5 ]. Additionally, it can influence the underground microbial community dynamics [ 6 , 7 ]. The Ziwuling region has undergone approximately 160 years of secondary succession, making it a unique area with a complete sequence of natural vegetation succession following farmland abandonment on the Loess Plateau [ 4 ].…”

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confidence: 99%

Soil labile organic carbon fractions mediate microbial community assembly processes during long‐term vegetation succession in a semiarid region

Shi,

Yang,

Liao

et al. 2023

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mentioning

confidence: 99%

Soil labile organic carbon fractions mediate microbial community assembly processes during long‐term vegetation succession in a semiarid region

Shi,

Yang,

Liao

et al. 2023

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Active restoration efforts drive community succession and assembly in a desert during the past 53 years

Hou,

Hu,

Sun

et al. 2024

Ecological Applications

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Regreening efforts in deserts have been implemented globally to combat land degradation and desert expansion, but how they affect above‐ and belowground community succession and assembly processes remains unknown. Here, we examined variations in plant and soil microbial community attributes along a 53‐year restoration chronosequence following the establishment of straw checkerboard barriers (SCBs) in the Tengger Desert of China. This approach is a combination of fixing shifting sand and adding organic material (straw) simultaneously to expedite vegetation restoration by enhancing the success of plant establishment. Our findings revealed that the establishment of SCBs significantly triggered plant and soil microbial communities to gradually approximate those of the natural community along restoration duration. We observed positive and negative bidirectional shifts in plant and soil microbial community composition. Critical temporal threshold zones for relatively rapid changes in community composition were identified, with 2–15.5 years for plants, 0.5–8.5 years for bacteria, and 2–8.5 years for fungi. This suggests a delayed response of plant communities to restoration efforts compared with soil microbial communities. Both stochastic and deterministic processes regulated plant and soil microbial community assembly. Stochastic processes played a more important role in plant and fungal community succession, whereas deterministic processes primarily governed bacterial succession. In terms of deterministic processes, temporal variations in community composition mainly resulted from the intrinsic correlations among plant, bacterial, and fungal communities, as well as an increase in soil organic carbon (SOC) with restoration duration. Thus, temporal patterns and functional contributions of bacterial communities appear to be more predictable than those of plant and fungal communities during desert ecosystem restoration. This study emphasizes that plant‐bacteria‐fungi correlations and increasing SOC content are critical for accelerating community succession and promoting dryland restoration. Future studies should explore and integrate temporal variations and restoration effects of multiple ecosystem functions to better predict dryland development and resilience to global climate changes over a large temporal scale.

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Effects of Vegetation Restoration Type on Soil Greenhouse Gas Emissions and Associated Microbial Regulation on the Loess Plateau

Zhou,

Liu,

et al. 2024

Ecology and Evolution

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Investigating responses of soil greenhouse gas (GHG) emissions to vegetation restoration is important for global warming mitigation. On the Loess Plateau, a wide range of vegetation restoration strategies have been implemented to control land degradation. However, the thorough quantification of soil GHG emissions triggered by different modes of vegetation restoration is insufficient. There is still a knowledge gap regarding the regulation of soil biochemical and microbial processing on soil GHG emissions. To do so, we compared responses of soil GHG emissions to various types of vegetation restoration on the Loess Plateau, and investigated the changes in soil properties as well as microbial composition and activities. We found that artificial plantation of Caragana korshinskii had low soil carbon dioxide (CO2) emission, while natural grassland had high CO2 emission. The possible explanations could be related to higher moisture and microbial biomass carbon, and greater nitrogen limitation in natural grassland, which was controlled by actinomycetes and gram‐negative bacteria. Natural grassland had low soil nitrous oxide (N2O) emission and high methane (CH4) uptake, whereas Prunus mume had high N2O emission and Medicago sativa had low CH4 uptake, respectively. Soil N2O emission could be driven by fungi and gram‐positive bacteria which were affected by N availability and dissolved organic carbon. Soil CH4 consumption was associated with anaerobic bacteria and gram‐negative bacteria which were affected by N availability and moisture. These different emissions of CO2, N2O and CH4 generated the largest total GHG emissions for plantation of Prunus mume, but the smallest total GHG emissions for natural grassland and plantation of leguminous Caragana korshinskii. Overall, our findings suggested that the restoration of natural grassland and artificial N‐fixing shrubland like Caragana korshinskii should be encouraged to alleviate GHG emissions, with the practical implications for selecting suitable modes and species to improve ecological sustainability in degraded lands.

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Responses of soil microbial communities to vegetation restoration on the Loess Plateau of China: A meta-analysis

Cited by 6 publications

References 111 publications

Soil labile organic carbon fractions mediate microbial community assembly processes during long‐term vegetation succession in a semiarid region

Soil labile organic carbon fractions mediate microbial community assembly processes during long‐term vegetation succession in a semiarid region

Active restoration efforts drive community succession and assembly in a desert during the past 53 years

Effects of Vegetation Restoration Type on Soil Greenhouse Gas Emissions and Associated Microbial Regulation on the Loess Plateau

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