4.6 Editorial Material

Editorial: Carbon Storage in Agricultural and Forest Soils

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Editorial Material Soil Science

Soil carbon sequestration for climate change mitigation: Mineralization kinetics of organic inputs as an overlooked limitation

Jacques Berthelin et al.

Summary: This article discusses the short-term mineralization kinetics of adding plant residues to soils and its impact on long-term carbon sequestration. The author points out that over 90% of plant residues are rapidly mineralized and released as CO2, making it practically impossible to add sufficient organic carbon to soils for lasting climate change mitigation. However, raising the organic matter content in soils remains important for other reasons.

EUROPEAN JOURNAL OF SOIL SCIENCE (2022)

Article Agronomy

Priming effects in the rhizosphere and root detritusphere of two wet-grassland graminoids

Eva Kastovska et al.

Summary: The rhizosphere and root detritusphere are hotspots of microbial activity, where root-derived inputs induce intensive priming effects on soil organic carbon decomposition. Rhizosphere priming effect is stronger than detritusphere, and more productive species with faster N-uptake induce larger rhizosphere priming effect than slower-growing species.

PLANT AND SOIL (2022)

Review Soil Science

Accounting for soil architecture and microbial dynamics in microscale models: Current practices in soil science and the path ahead

Valerie Pot et al.

Summary: The development of new generation soil organic matter (SOM) models at the spatial scale of soil microenvironments challenges traditional hypotheses about influences on soil microbial activity. These models better capture interactions at the microscale and provide insights into the dynamics of SOM decomposition.

EUROPEAN JOURNAL OF SOIL SCIENCE (2022)

Article Soil Science

A holistic perspective on soil architecture is needed as a key to soil functions

Hans-Joerg Vogel et al.

Summary: Soil functions, such as climate regulation and water/nutrient cycling, are crucial for addressing environmental issues. Recent non-disturbing imaging techniques have advanced the understanding of soil architecture, emphasizing the importance of exploring soil in its natural state. Biological and physical mixing processes play a key role in the formation and dynamics of soil architecture, highlighting the necessity of a holistic approach focusing on the pore space.

EUROPEAN JOURNAL OF SOIL SCIENCE (2022)

Review Soil Science

Bypass and hyperbole in soil research: Worrisome practices critically reviewed through examples

Philippe C. Baveye

Summary: The literature on soils is characterized by a significant amount of bypass and hyperbole. Bypass is related to soil aggregates, soil quality/health, soil contributions to ecosystem services and whole-soil metagenomics, while hyperbole is connected to research on biochar, the 4 per 1000 initiative, and the role of soils in achieving Sustainable Development Goals. The need to curb these deviations is emphasized.

EUROPEAN JOURNAL OF SOIL SCIENCE (2021)

Article Environmental Sciences

How does management legacy, nitrogen addition, and nitrification inhibition affect soil organic matter priming and nitrous oxide production?

Shakila K. Thilakarathna et al.

Summary: Long-term management practices in croplands have a significant impact on nitrous oxide fluxes, with denitrification being the predominant source. Nitrogen additions and mineralization of soil organic matter also play a role in influencing nitrous oxide emissions. The study also found that the type of crop rotation and specific management legacies can affect the sources and levels of nitrous oxide production.

JOURNAL OF ENVIRONMENTAL QUALITY (2021)

Article Soil Science

Going submicron in the precise analysis of soil structure: A FIB-SEM imaging study at nanoscale

Kirill M. Gerke et al.

Summary: This study characterizes soil nanostructure using FIB-SEM imaging technique, revealing differences in structural features at different scales, pore size distributions, and types of nanoporosity. The advantages and shortcomings of FIB-SEM imaging were highlighted, with proposed solutions and future research directions to improve the characterization of soil structure at the nano-scale.

GEODERMA (2021)

Article Soil Science

Temperature and soil management effects on carbon fluxes and priming effect intensity

Raphael Guttieres et al.

Summary: Any change in the intensity and sign of CO2 flux between soil and atmosphere is expected to have a significant impact on climate, and this is dependent on the interaction between dead plant matter persistence and soil organic matter mineralization. The study suggests that the biodegradability of plant debris is the main determinant of the intensity of the priming effect, with soil cover and plant residue management playing a more crucial role than temperature and nutrients in influencing the intensity of the effect.

SOIL BIOLOGY & BIOCHEMISTRY (2021)

Article Soil Science

Modeling temperature sensitivity of soil organic matter decomposition: Splitting the pools

Moritz Laub et al.

Summary: This study investigated the relationship between carbon pool recalcitrance and Q(10) values, and found that using pool-specific Q(10) values can improve the performance of SOC models. Additionally, a new conceptual framework was proposed to explain differences in temperature sensitivities observed in experiments.

SOIL BIOLOGY & BIOCHEMISTRY (2021)

Article Biodiversity Conservation

Drought alters the carbon footprint of trees in soils-tracking the spatio-temporal fate of 13C-labelled assimilates in the soil of an old-growth pine forest

Decai Gao et al.

Summary: This study investigated the transfer and use of assimilates between trees and rhizosphere under drought conditions and found that irrigation can alleviate the impact of drought on assimilate transfer. Microbes in the rhizosphere play a significant role in absorbing assimilates, while irrigation influences the area of rhizosphere and C allocation within trees.

GLOBAL CHANGE BIOLOGY (2021)

Review Geosciences, Multidisciplinary

A review on the possible factors influencing soil inorganic carbon under elevated CO2

Jannatul Ferdush et al.

Summary: Soil inorganic carbon (SIC) is the largest pool in the global carbon cycle and may act as a significant carbon source and sink in arid and semi-arid regions. Knowledge of the impacts of changing climatic conditions on SIC is limited, but factors like soil water content and precipitation play crucial roles in influencing the effects of elevated CO2 on the SIC pool.

CATENA (2021)

Article Plant Sciences

Microbial Identification, High-Resolution Microscopy and Spectrometry of the Rhizosphere in Its Native Spatial Context

Chaturanga D. Bandara et al.

Summary: This study presents a novel approach for simultaneous microbial identification and chemical analysis of the rhizosphere at micro- to nano-meter spatial resolution. High-resolution characterization using six different techniques followed by image registration demonstrates the capability of this method to meet the demanding requirements of spatial organization of bacteria and chemical mapping of the rhizosphere. The method provides a platform for combining various 2D analytics to improve understanding of rhizosphere processes and their ecological significance.

FRONTIERS IN PLANT SCIENCE (2021)

Editorial Material Agronomy

Managing Soil Organic Carbon for Mitigating Climate Change and Increasing Food Security

Cornelia Rumpel et al.

Summary: This Special Issue presents advances in soil organic carbon (SOC) sequestration practices, focusing on their benefits, trade-offs and monitoring. The studies cover agricultural practices and climate change, the impact of organic matter amendments, and the development of monitoring, reporting and verification (MRV) strategies. It is concluded that region-specific approaches are essential for the implementation and monitoring of SOC sequestering practices.

AGRONOMY-BASEL (2021)

Article Microbiology

Micro on a macroscale: relating microbial-scale soil processes to global ecosystem function

Darian N. Smercina et al.

Summary: Understanding and predicting the behavior and function of soil microorganisms is a major challenge for soil ecology, but is crucial for accurately predicting global processes. Clearly defining and quantifying the size, distribution, and sphere of influence of microhabitats is essential for managing microbial activity at the ecosystem scale. Implementing controlled and hierarchical sampling designs, model microbial systems, and adapting soil sampling schemes can help collect microbially-focused data and more accurately predict soil functions.

FEMS MICROBIOLOGY ECOLOGY (2021)

Article Environmental Sciences

Temperature sensitivity of decomposition decreases with increasing soil organic matter stability

Gabriel Y. K. Moinet et al.

SCIENCE OF THE TOTAL ENVIRONMENT (2020)

Review Multidisciplinary Sciences

Towards a global-scale soil climate mitigation strategy

W. Amelung et al.

NATURE COMMUNICATIONS (2020)

Article Agronomy

Grassland Management Influences the Response of Soil Respiration to Drought

Gabriel Y. K. Moinet et al.

AGRONOMY-BASEL (2019)

Article Engineering, Environmental

Correlative Imaging Reveals Holistic View of Soil Microenvironments

Steffen Schlueter et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2019)

Editorial Material Multidisciplinary Sciences

Put more carbon in soils to meet Paris climate pledges

Cornelia Rumpel et al.

NATURE (2018)

Letter Microbiology

To sequence or not to sequence the whole-soil metagenome?

Philippe C. Baveye

NATURE REVIEWS MICROBIOLOGY (2009)