Carbon storage in agricultural topsoils and subsoils is promoted by including temporary grasslands into the crop rotation

Guillaume, Thomas; Makowski, David; Libohova, Zamir; Elfouki, Saïd; Fontana, Mario; Leifeld, Jens; Bragazza, Luca; Sinaj, Sokrat

doi:10.1016/j.geoderma.2022.115937

Cited by 27 publications

(17 citation statements)

References 59 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In all the experiments, the lysimeter was filled with the same type of soil, whose native total organic carbon (TOC) was measured to be around 1.3% (see Sections S1 and S4 in Supporting Information and (Gubler et al., 2019; Guillaume et al., 2022)). To drive microbial processes in SM‐B, additional organic carbon was provided by the mixture of soil and leaves.…”

Section: Methodsmentioning

confidence: 99%

Spatially Explicit Linkages Between Redox Potential Cycles and Soil Moisture Fluctuations

Miele

Benettin

Wang

et al. 2023

Water Resources Research

View full text Add to dashboard Cite

Reduction‐oxidation cycles measured through soil redox potential (Eh) are associated with dynamic soil microbial activity. Understanding changes in the composition of, and resource use by, soil microbial communities requires Eh predictability under shifting hydrologic drivers. Here, 50‐cm soil column installations are manipulated to vary hydrologic and geochemical conditions, and are extensively monitored by a dense instrumental deployment to record the depth‐time variation of physical and biogeochemical conditions. We contrast measurements of Eh, soil saturation and key compounds in water samples (probing the majority of soil microbial metabolisms) with computations of the relevant state variables, to investigate the interplay between soil moisture and redox potential dynamics. Our results highlight the importance of joint spatially resolved hydrologic flow/transport and redox processes, the worth of contrasting experiments and computations for a sufficient understanding of the Eh dynamics, and the minimum amount of biogeochemistry needed to characterize the dynamics of electron donors/acceptors that are responsible for the patterns of Eh not directly explained by physical oxic/anoxic transitions. As an example, measured concentrations of sulfate, ammonium and iron II suggest coexistence of both oxic and anoxic conditions. We find that the local saturation velocity (a threshold value of the time derivative of soil saturation) exerts a significant hysteretic control on oxygen intrusion and on the cycling of redox potentials, in contrast with approaches using a single threshold saturation level as the determinant of anoxic conditions. Our findings improve our ability to target how and where hotspots of activity develop within soil microbial communities.

show abstract

Section: Methodsmentioning

confidence: 99%

Spatially Explicit Linkages Between Redox Potential Cycles and Soil Moisture Fluctuations

Miele

Benettin

Wang

et al. 2023

Water Resources Research

View full text Add to dashboard Cite

show abstract

“…Subsequent conversion to a four-year grass-clover ley resulted in additional C stock increments of 4.2 Mg ha À1 , with no new steady state being achieved after 13 years. Similarly,Guillaume et al (2022) have shown a clear benefit of leys for improved SOC, with a positive correlation between…”

mentioning

confidence: 87%

The importance of multi‐species grassland leys to enhance ecosystem services in crop rotations

Malisch,

Finn,

Eriksen

et al. 2024

Grass and Forage Science

View full text Add to dashboard Cite

The ongoing simplification of agricultural production systems has resulted in several negative consequences, ranging from losses in soil organic carbon and biodiversity to a high dependency on external inputs to maintain high yields. We identify how grassland leys in crop rotations may help to mitigate these effects, by conserving soil organic carbon and enhancing nutrient efficiency. In particular, grasslands containing legumes enhance these benefits by providing nitrogen, and displacement of mineral N fertilizer. In crop rotations, these grasslands may transfer some of the acquired nitrogen to arable follow‐on crops, thereby reducing the necessity for external inputs, while at the same time providing additional benefits, such as improvement of soil quality and reduction of weed pressure. However, there are still considerable knowledge gaps about how to optimize the community composition of grassland leys to best enhance the supply of these ecosystem services. Although the benefits of multi‐species grasslands for the grassland crop have been shown repeatedly and across a large gradient of environments, further research is required to determine the benefits for follow‐on crops, particularly across different environmental conditions. Here, we emphasize the importance of multi‐site research, such as in the research network LegacyNet. Finally, we present management techniques that are optimized for both ecosystem services and agronomic performance in mechanically cut and grazed systems. For the latter, we consider how the inclusion of bioactive plant species can enhance animal health and lower methane emissions in grazing ruminants.

show abstract

“…Overall, the C balance performed in this study by taking in consideration the topsoil highlighted the importance of SOC sequestration into the LCA of agricultural systems. However, because of its pivotal role on C storage (Guillaume et al, 2022;Antony et al, 2022) and its greater influence on the agricultural managements compared to topsoil (Samson et al, 2021;Osanai et al, 2020), future LCA studies should take into consideration the subsoil and its key role in the overall C cycle.…”

Section: Tablementioning

confidence: 99%

The importance of incorporating soil in the life cycle assessment procedure to improve the sustainability of agricultural management

Feudis¹,

Selmi²,

Falsone³

et al. 2022

CATENA

View full text Add to dashboard Cite

Carbon storage in agricultural topsoils and subsoils is promoted by including temporary grasslands into the crop rotation

Cited by 27 publications

References 59 publications

Spatially Explicit Linkages Between Redox Potential Cycles and Soil Moisture Fluctuations

Spatially Explicit Linkages Between Redox Potential Cycles and Soil Moisture Fluctuations

The importance of multi‐species grassland leys to enhance ecosystem services in crop rotations

The importance of incorporating soil in the life cycle assessment procedure to improve the sustainability of agricultural management

Contact Info

Product

Resources

About