The temperature sensitivity of soil carbon (C) and nitrogen (N) mineralization commonly expressed as the Q
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coefficient, plays a pivotal role in regulating soil–atmosphere greenhouse gas exchanges in temperate ecosystems. This review synthesizes findings from 181 peer-reviewed studies (1960–2025) to evaluate how soil properties, substrate quality, microbial traits, and land-use history interact to shape Q
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dynamics under climatic warming. Using a structured, thematically coded literature review, we identify mechanistic pathways that govern mineralization responses across major temperate soil orders. Clay-rich soils with high short-range ordered (SRO) minerals consistently exhibit low Q
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values (1.3–2.0) due to mineral protection of soil organic matter (SOM). In contrast, coarse-textured and disturbed soils exhibit elevated thermal sensitivity (> 3.0). Microbial C use efficiency (CUE), enzyme activity, and functional group composition further modulate mineralization responses, especially under seasonal freeze–thaw or rewetting events. Land-use transitions, including tillage, afforestation, and organic amendments, significantly alter Q
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by altering aggregation, SOM accessibility, and microbial community structure. Despite advances, Earth system models often overlook the spatiotemporal heterogeneity of Q
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, limiting prediction accuracy. We highlight the need for integrating depth-resolved mineralogical traits, microbial acclimation, and management history into climate–soil feedback frameworks. This synthesis advances a mechanistic foundation for improving biogeochemical models and informing soil-based climate mitigation strategies.
K. N. Sheuly, Khalid Syfullah, Z. Solaiman· Biogeochemistry· 0 citations
Rice-based agroecosystems in Bangladesh face mounting challenges from nutrient imbalance, declining soil organic matter, climate-related stress and inefficient fertilizer management. While intensive fertilizer use has raised productivity, it has also reduced nutrient use efficiency and degraded soil quality. Nanofertilizers and organic soil amendments have emerged as complementary strategies to improve nutrient management and soil health in rice systems. This review synthesizes 85 peer-reviewed field, pot and laboratory studies (2005-2025) from Bangladesh and comparable South Asian agroecosystems, evaluating the individual and combined effects of nanofertilizers and soil amendments (biochar, compost, green manure, lime) on rice productivity, soil properties, nutrient dynamics and environmental outcomes. Nanofertilizers improve nutrient use efficiency through controlled release, while amendments enhance soil organic carbon, microbial activity and nutrient retention. Combined application produces synergistic gains, with yield improvements of approximately 25-40% reported under specific experimental conditions. These integrated strategies reduce nutrient losses, strengthen soil function and support more efficient, climate-resilient rice production aligned with SDGs 2, 6, 13 and 15. Most available evidence, however, derives from short-term field and pot trials; long-term, multi-location studies are needed to evaluate nanoparticle fate, environmental safety, economic feasibility and farmer adoption under diverse rice-growing conditions before large-scale deployment.
Ishrat Alam, Khalid Syfullah, Bijoya Saha et al.· Agricultural Science Digest...· 0 citations
