Effects of Global Warming on Soil Ecosystem Carbon Cycle

Abstract

The effects of warming due to increased greenhouse gases on the soil carbon cycle have attracted considerable attention. This article presents a comprehensive examination of the fundamental mechanisms implicated in the carbon cycling process inside soil. This article examines various aspects of the soil carbon cycle, including soil respiration, soil apoplastic matter, soil microorganisms, and soil carbon stores. The following findings were derived: The soil microbial community exhibited notable structural alterations in response to rising temperatures. An increase in temperature significantly increases fungal activity in soil microbes. The rise in temperature resulted in an enhanced influx of carbon from vegetation into the soil, thereby facilitating an augmentation in carbon reservoirs within the soil. Increased temperatures have been found to have a positive effect on the process of soil mineralization, leading to the decomposition of soil organic carbon and a subsequent reduction in the storage of carbon within the soil. Elevated temperatures have the additional effect of expediting the process of soil mineralization, which in turn results in the breakdown of soil organic carbon and a subsequent decline in the storage of carbon within the soil. Warming results in long-term declines in soil moisture, and ecosystems in very dry regions may experience reduced carbon uptake. Adaptation of soil respiration to higher temperatures is a more general phenomenon.