Is the Change of Soil Carbon Capacity Persistence Rising or Remain Stable With Maturity of Vegetation Restoration?

Liu, Qian; Wang, Peipei; Xue, Zhijing; Zhou, Zhengchao; Liu, June; An, Shaoshan

doi:10.3389/fsoil.2021.663910

Cited by 4 publications

(1 citation statement)

References 57 publications

(90 reference statements)

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“…Previous studies on the restoration of coastal salt marshes have mainly focused on hydrological restoration measures such as freshwater input and river system connectivity, which play a certain role in the restoration of wetland vegetation (Cui et al, 2009; Liu et al, 2020; Liu et al, 2021a, 2021b). However, the high degree of soil hardness and salinization in degraded salt marshes, impeded diffusion of air and water in the soil, and infertile soil were not conducive to seed germination and seedling growth of S. salsa (Bai et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Effects of ecological restoration on carbon sink and carbon drawdown of degraded salt marshes with carbon‐rich additives application

Chen

Bai

et al. 2022

Land Degrad Dev

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Plant biomass resources have been gradually used to restore and improve saline soils. However, little is known about whether the applications of reed straw (PA) and biochar (BC) in degraded coastal salt marshes are beneficial for blue carbon sink enhancement and carbon drawdown. Here, we evaluated the effects of 3% PA and 3% BC applications on the vegetation, soil and blue carbon sink function of degraded salt marsh ecosystems and assessed their CO2 reduction capacities based on the life cycle. The results showed that the applications of PA and BC improved the soil quality of degraded salt marshes. Suaeda salsa recovered after 3% PA and 3% BC additions, and its carbon sequestration increased by 133% and 12%, respectively. The carbon pool of the degraded salt marshes was elevated by 0.4%–2.8% compared with that before restoration. The structural equation modelling indicated that both PA and BC application decreased soil electrical conductivity, while promoted the recovery of the plant carbon pool and an increase in the soil carbon pool. We calculated a CO2 drawdown of 137 kg·t−1 for the 3% PA addition in comparison with a CO2 emission of 175 kg·t−1 for the 3% BC addition based on a life cycle assessment. These findings indicate that PA and BC can be effectively used to restore degraded salt marshes and enhance blue carbon sinks while PA application is a better choice for degraded coastal wetlands rehabilitation to achieve carbon drawdown from a life cycle perspective.

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Section: Introductionmentioning

confidence: 99%

Effects of ecological restoration on carbon sink and carbon drawdown of degraded salt marshes with carbon‐rich additives application

Chen

Bai

et al. 2022

Land Degrad Dev

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Land-use change in the Zagros forests and its impact on soil carbon sequestration

Moradi

Shabanian

2022

Environ Dev Sustain

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Improving Forest Soil Health and Ecosystem Services to Minimize the Impact of Climate Change

Aide,

Braden,

Nakasagga

et al. 2023

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The presence of increasing quantities of greenhouse gases is fostering climate change. This review chronicles the emerging research addressing the role of soil to sequester carbon across biomes, understand the soil mechanisms responsible for soil carbon preservation and indicate the need to estimate the intensity for site-specific carbon sequestration. To negate the continuing increase of atmospheric greenhouse gases requires using well-documented soil pathways to sequester carbon. For deciduous forests, emerging concepts center around two approaches: 1) increasing the ecosystem's net primary productivity coupled with increasing the carbon supply into soil using appropriate land management practices, and 2) supporting soil processes that increase soil carbon retention. New perspectives suggest that soil carbon may be preferentially preserved because organic materials are adsorbed onto phyllosilicates and oxyhydroxides and subsequently protected from microbial degradation because of soil structure improvement. Thus, augmenting soil structure may promote soil organic matter persistence. Each soil has a soil carbon carrying capacity; however, soil survey databases infer that soil organic matter concentrations have a significant variance at the soil series level. The need exists for more precise estimates of the soil's carbon carrying capacity at the pedon level to support land management practices that encourage land management options designed to preserve soil carbon. However, the complexity of the soil system may limit its usefulness for routine soil management decisions. Our modern understanding of soil carbon preservation processes and emerging soil carbon saturation deficit concepts may potentially improve decision support tools for managing soils for carbon sequestration.

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Is the Change of Soil Carbon Capacity Persistence Rising or Remain Stable With Maturity of Vegetation Restoration?

Cited by 4 publications

References 57 publications

Effects of ecological restoration on carbon sink and carbon drawdown of degraded salt marshes with carbon‐rich additives application

Effects of ecological restoration on carbon sink and carbon drawdown of degraded salt marshes with carbon‐rich additives application

Land-use change in the Zagros forests and its impact on soil carbon sequestration

Improving Forest Soil Health and Ecosystem Services to Minimize the Impact of Climate Change

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