Intensified river salinization alters nitrogen-cycling microbial communities in arid and semi-arid regions of China.

ABSTRACT: Freshwater salinization is receiving increasing global attention due to its profound influence on nitrogen cycling in aquatic ecosystems and the accessibility of water resources. However, a comprehensive understanding of the changes in river salinization and the impacts of salinity on nitrogen cycling in arid and semi-arid regions of China is currently lacking. A meta-analysis was first conducted based on previous investigations and found an intensification in river salinization that altered hydrochemical characteristics. To further analyze the impact of salinity on nitrogen metabolism processes, we evaluated rivers with long-term salinity gradients based on in situ observations. The genes and enzymes that were inhibited generally by salinity, especially those involved in nitrogen fixation

SUBMITTER: Pang Q 

PROVIDER: S-EPMC11381997 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature