Soil organic carbon stability of vegetation restoration during 11-year-old grassland succession

Xiao, Jinjin; Wang, Xia; Zhao, Yunfei; Li, Jia; Tang, Jiakai; Wang, Kaichang; Hao, Zhiguo; Jiang, Silong; Zhou, Xiaolong; Liu, Huiying

doi:10.1007/s11368-023-03497-9

Cited by 6 publications

(3 citation statements)

References 59 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As a result, smaller amounts of unstable organic carbon groups usually remain in the soil (González‐Rosado et al., 2020 ). Therefore, the significantly higher SOC accumulation in the shrub patches than in the herb patches may be related to the lower content of unstable groups in the soil (Xiao et al., 2023 ). The relative abundance of the Proteobacteria increased significantly from mobile to fixed.…”

Section: Discussionmentioning

confidence: 99%

Changes in soil bacterial community characteristics in patches of different vegetation types under different stages of restoration in the desert of northern China

Li,

Liang,

Meng

et al. 2024

Ecology and Evolution

View full text Add to dashboard Cite

In desert areas, the process of mobile sandy land changing to semi‐fixed sandy land and eventually to fixed sandy land after undergoing vegetation restoration is inevitable. The presence of shrub patches and herb patches is common in this restoration process. No relevant studies have reported the soil bacterial community characteristics of different vegetation‐type patches (shrub patches and herb patches) under different stages of restoration. Therefore, we utilized long‐established experimental plots to collect soil from 0–20 cm soil layer under shrub patches (dominated by Salix psammophila) and herb patches under different stages of restoration (i.e., mobile sand land, semi‐fixed sand land, and fixed sand land), by determining soil physicochemical properties, enzyme activities, and soil bacterial communities. Our results found that soil bacterial α‐diversity under different restoration stages showed higher shrub patches than herb patches. The dominant bacterial communities (phyla) in shrub patches and herb patches at different recovery stages were Actinobacteria, Proteobacteria, and Bacteroidota. When the mobile sandy land returned to fixed sandy land, the relative abundance of Actinobacteria and Bacteroidota gradually decreased under shrub patches and herb patches, while the relative abundance of Proteobacteria increased significantly. In addition, herb patches significantly increased the relative abundance of bacteria (genus) relative to shrub patches at different stages of recovery. Soil nutrients, soil fine particles, and soil enzyme activities were significantly higher under shrub patches than under herb patches when fixed sandy land due to differences in life form and architecture between shrub patches and herb patches. Based on this, soil bacterial community composition and diversity under shrub patches were driven by more soil properties during the restoration of sandy land. This study complements the dynamic recovery processes and driving mechanisms of soil bacterial community structure under different vegetation patches in sandy areas, especially in the context of global climate change.

show abstract

Section: Discussionmentioning

confidence: 99%

Changes in soil bacterial community characteristics in patches of different vegetation types under different stages of restoration in the desert of northern China

Li,

Liang,

Meng

et al. 2024

Ecology and Evolution

View full text Add to dashboard Cite

show abstract

“…Therefore, even if the rate of change of the SMBC and SMBN before and after freeze-thaw was large, they did not have a major impact on the SOC and TN due to them being a small percentage of the SOC and TN. The turnover time of soil organic carbon is 5 to 10 years [42]. SOC and TN are closely related, and both are affected by soil type, erosion conditions, etc.…”

Section: Rda Between Carbon Nitrogen and Influence Factorsmentioning

confidence: 99%

Impact of Winter Cover Crops on Total and Microbial Carbon and Nitrogen in Black Soil

Li,

Zhu,

Zhang

et al. 2024

Agronomy

View full text Add to dashboard Cite

Winter cover crops have been shown to promote the accumulation of microbial biomass carbon and nitrogen, enhance nutrient cycling, reduce erosion, improve ecosystem stability, etc. In the black soil area of Northeast China, Triticum aestivum L., Medicago sativa L., Vicia villosa Roth., Triticum aestivum L. and Medicago sativa L. mixed planting, Triticum aestivum L. and Vicia villosa Roth. mixed planting, and winter fallow fields (CK) were selected to investigate the effects of winter cover crops on soil total carbon and nitrogen and microbial biomass carbon and nitrogen. The results showed that (1) after seasonal freeze-thaw, the rate of change in SOC (−2.49~6.50%), TN (−1.54~5.44%), and C/N (−1.18~1.16%) was less than that in SMBC (−80.91~−58.33%), SMBN (−65.03~332.22%), and SMBC/SMBN (−45.52~−90.03%); (2) winter cover crops not only alleviated the negative effects of seasonal freeze-thaw, which reduces SMBC and qMBC, but also increased SMBN and qMBN; (3) there was an extremely significant (p < 0.01) positive correlation between SOC and TN, a significant (p < 0.05) negative correlation between SMBC and SMBN, and there was no significant correlation between SOC and SMBC or between TN and SMBN; (4) alkali-hydrolysable nitrogen had the greatest impact on SOC and TN, while the soil’s saturation degree had the greatest impact on SMBC and SMBN; and (5) the Triticum aestivum L. monoculture was the most effective in conserving soil microbial carbon and nitrogen. In conclusion, winter cover crops can mitigate the reduction in soil microbial biomass carbon caused by seasonal freeze-thaw and also increase the soil microbial nitrogen content in the black soil region of Northeast China, of which Triticum aestivum L. monoculture showed the best performance.

show abstract

“…For arable soils, the effects of management practices seem to mask the impact of soil minerals or are more relevant for the topsoil SOC storage than soil mineral characteristics Xiao et al, 2023). Differences in tillage intensity, for example, are known to affect SOC levels, especially in the topsoil (Cui et al, 2024).…”

Section: Chemical and Physical Bulk Soil Characteristicsmentioning

confidence: 99%

Storage and persistence of organic carbon in the upper three meters of soil under arable and native prairie land use

Anuo,

Li,

Moreland

et al. 2024

Preprint

View full text Add to dashboard Cite

Aims - Land use change from native grasslands to arable lands globally impacts soil ecosystem functions, including the storage of soil organic carbon (SOC). Understanding the factors affecting SOC changes in topsoil and subsoil due to land use is crucial for effective mitigation strategies. We determined SOC storage and persistence as affected by land use change from native prairies to arable lands.Methods - We examined SOC stocks, soil δ13C and ∆14C signatures, microbial community (bacteria and fungi), and soil mineral characteristics under native prairies and long-term arable lands (i.e., > 40 years) down to 3 m in the U.S. Midwest.Results - Native prairie soils had higher SOC stocks in the A horizon and 0–50 cm depth increment than arable soils. For both land use types, the δ13C and ∆14C values significantly decreased with depth, with the latter pointing towards highly stabilized SOC, especially in the B- and C-horizons. Analysis of microbial communities indicated that the diversity of bacteria and fungi decreased with soil depth. The content of oxalate soluble Al appeared to be the single most important predictor of SOC across horizons and land use types.Conclusion - Our data suggest that most SOC gains and losses and transformation and translocation processes seem to be restricted to the uppermost 50 cm. Increasing SOC retention in A and B horizons within the 0–50 cm depth would enhance organic material serving as substrate and nutrients for microbes and plants (A horizon) and facilitate long-term SOC storage in subsoil (B horizon).

show abstract

Soil organic carbon stability of vegetation restoration during 11-year-old grassland succession

Cited by 6 publications

References 59 publications

Changes in soil bacterial community characteristics in patches of different vegetation types under different stages of restoration in the desert of northern China

Changes in soil bacterial community characteristics in patches of different vegetation types under different stages of restoration in the desert of northern China

Impact of Winter Cover Crops on Total and Microbial Carbon and Nitrogen in Black Soil

Storage and persistence of organic carbon in the upper three meters of soil under arable and native prairie land use

Contact Info

Product

Resources

About