Is Macroporosity Controlled by Complexed Clay and Soil Organic Carbon?

Koop, Aaron N.; Hirmas, Daniel R.; Billings, S. A.; Li, Li; Cueva, Alejandro José Pérez; Zhang, Xi; Wen, Hang; Nemes, Attila; Souza, Lígia F. T. de; Ajami, Hoori; Flores, Alejandro N.; Rudick, Aoesta K.; Guthrie, Annalise; Klamm, Lola M.; Unruh, Micah; Sullivan, Pamela L.

doi:10.2139/ssrn.4207711

Cited by 1 publication

(1 citation statement)

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“…Therefore, increasing the SOC content could improve the macro and micro-aggregation and MWD (Das et al, 2014;Guo et al, 2019;Halder et al, 2023). Furthermore, the association of organic carbon with clay could have occurred, thus enhancing soil aggregation and lower bulk density, leading to increased macro-porosity and hydraulic conductivity of the soil (Koop et al, 2023;Soliman and Mansour, 2024).…”

Section: Pectin Compoundmentioning

confidence: 99%

Impact of Carbon Nanoparticles on Aggregation and Carbon Sequestration under Soil Degradation – a Review

Abdelatif,

Soliman,

Hammd

et al. 2024

Journal of Soil Sciences and Agricultural Engineering

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Soil aggregation, mainly macro-(250-2000 µm) and micro-(53-250 µm) aggregates, directly affects the soil system i.e. pore size distribution, the microbial population, soil resistance to erosion, and resistance against degradation. Moreover, macro-aggregates play a significant role in soil organic carbon (SOC) storage and carbon sequestration. However, because macro-aggregates create an environment that facilitates interactions between clay particles and the SOC, protection by macro-aggregates becomes weak. Therefore, the direction of micro-aggregate formation is helpful for long-term soil carbon sequestration. This review suggests that the micro-aggregate protected carbon is promising for assessing the impact of agricultural soil conservation on organic carbon storage in soil. Soil degradation by agriculture practices leads to the destruction of the protective soil aggregate and soil structure. This exposes the labile carbon in these aggregates to microbial interaction. The present review found that SOC change was significantly influenced by organic inputs such as organic nanoparticles (CNPs), especially in sandy and clay soils poor in organic matter.

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Section: Pectin Compoundmentioning

confidence: 99%