Vol. 7, Issue 6 (2019)
Soil organic carbon storage, ecosystem dynamics and climate change: current agro-environmental perspectives and future dimensions: A review
Author(s): SS Dhaliwal, RK Naresh, Amit Kumar, M Sharath Chandra, UP Singh, Yogesh Kumar, Shivangi, Vineet Kumar, Omkar Singh and SK Gupta
Abstract: Soil is the largest organic carbon (C) pool of terrestrial ecosystems, and C loss from soil accounts for a large proportion of land-atmosphere C exchange. Therefore, soil organic carbon (SOC) plays an important role in the carbon cycling of terrestrial ecosystems, deviations in SOC stocks are very important for the ecosystem. Globally, soil organic matter (SOM) comprises more than three times as much C as either the atmosphere or terrestrial vegetation. Yet it remains mainly unknown why some SOM persists for ages whereas other SOM decomposes readily and this limits our ability to predict how soils will respond to climate change. Soils form via multiple interactions of various forces, including climate, organisms, parent material, all acting over time. It takes centuries for a soil to form and many of the soils are still evolving subsequent changes due to various soil forming factors, mainly climate and vegetation, in last few decades. Climate is one of the main factors influencing the formation of soil with important implications for their advancement, use and management perspective with reference to soil structure, stability, water holding capacity, availability of nutrients and erosion. Further Indirect effects corresponds to changes in growth rates or water-use efficiencies, through sea-level rise, through climate-induced decrease or increase in vegetative cover or anthropogenic intervention. Assuming constant inputs of carbon to soils from vegetation, different estimate predict that expected changes in temperature, precipitation and evaporation cause significant change in organic matter turnover and CO2 dynamics.
Pages: 192-204 | 544 Views 67 Downloads
download (12493KB)
How to cite this article:
SS Dhaliwal, RK Naresh, Amit Kumar, M Sharath Chandra, UP Singh, Yogesh Kumar, Shivangi, Vineet Kumar, Omkar Singh, SK Gupta. Soil organic carbon storage, ecosystem dynamics and climate change: current agro-environmental perspectives and future dimensions: A review. Int J Chem Stud 2019;7(6):192-204.
