Trends in soil microbial communities and carbon metabolism functions in coastal islands

Sea level rise caused by global climate change is threatening coastal island biodiversity and soil carbon stocks, so we investigated the response mechanisms of soil microbiome, macrogenome and metabolome functions to coastal-inland salinity gradients in coastal wetlands based on Lingding Island, Guangdong Province. The results demonstrate that elevated salinity due to sea level rise alters microbial community diversity and reduces the functional genes of carbon metabolism, which leads to a reduction in the potential of microorganisms to participate in organic matter metabolism.