Impacts of Climate Change on Soil Processes
摘要
Understanding the interactions between climate change and various soil processes helps in understanding the impacts and developing strategies to adapt and mitigate climate change. In this chapter, we have described a brief overview of climate change and greenhouse gas concentrations, as well as different representative concentration pathways (RCP) scenarios and changes in soil processes on a global scale. We have also described the impacts of climate change on various soil processes, including soil formation, clay mineral transformation, soil erosion, structural degradation, hydrological processes, soil air, and thermal regimes, nutrient cycling, ion exchange, nutrient availability, acidification, salinization, alkalinization, microbial changes, and rhizosphere chemistry. In addition, we also described the effects of climate change on seven soil functions and soil processes such as C sequestration, aggregation, porosity, humification, podsolization, translocation of C deep into the soil profile, soil water regime, and nitrification–denitrification.