Fast-decaying tree litter reduces the temperature sensitivity of soil carbon decomposition by increasing microbial necromass carbon

Geoderma, Год журнала: 2025, Номер 454, С. 117185 - 117185

Опубликована: Янв. 25, 2025

Язык: Английский

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Global Distributions of Reactive Iron and Aluminum Influence the Spatial Variation of Soil Organic Carbon

Global Change Biology, Год журнала: 2024, Номер 30(11)

Опубликована: Ноя. 1, 2024

ABSTRACT Organic carbon persistence in soils is predominantly controlled by physical accessibility rather than its biochemical recalcitrance. Understanding the regulation of soil iron (Fe) and aluminum (Al) (hydr)oxides, playing a dominant role mineral protection, on organic (SOC) would increase reliable projections feedback terrestrial ecosystems to global warming. Here, we conducted continental‐scale survey China (341 sites) synthesis (6786 observations) reveal distributions Fe/Al (hydr)oxides their effects SOC storage ecosystems. We generated first maps with high accuracy (with R 2 more 0.74). The variance decomposition analysis showed that explained most proportion for topsoil (0–30 cm) subsoil (30–100 SOC. Therefore, play stronger explaining spatial variation well‐studied climate, edaphic, vegetated, depth factors both subsoil. Collectively, planetary‐scale significance highlights should be incorporated into Earth System Models reduce uncertainty predicting dynamics.

Язык: Английский

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Evaluating Land Management Options to Optimize Soil Organic Matter Retention in Oxisols: Case Studies Involving Brazil and Hawaii

IntechOpen eBooks, Год журнала: 2024, Номер unknown

Опубликована: Сен. 24, 2024

Oxisols are extremely weathered soils developed largely across equatorial regions. Emerging agricultural land management techniques address soil degradation caused by conventional tillage, nutrient neglect, and other agronomic issues. In Brazil, no-till systems support the maintenance of an epipedon residue protective layer that improves organic matter contents, strengthens structures, fosters provision, development a robust biology community. Growing awareness Brazilian producers focuses on enrichment to enhance crop productivity but also ecosystem services facets associated with health. Hawaii, nearly total decline sugarcane pineapple production has left large acreages have suffered long-term erosion impoverishment. The Hawaiian community is attempting state’s food security, primarily creating small-acreage farms produce amazing diversity foods center sustainability around utilizing locally proven health techniques. Both entities community-based extension services, compelling research components, producer-oriented digital tool offerings.

Язык: Английский

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Higher endogenous labile organic carbon decreases the temperature sensitivity of soil organic matter decomposition in two subtropical forests

Applied Soil Ecology, Год журнала: 2024, Номер 206, С. 105816 - 105816

Опубликована: Дек. 9, 2024

Язык: Английский

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