The Spatial Dynamics of Diazotrophs in the Forefield of Three Tibetan Glaciers.

ABSTRACT: Nitrogen is often a limiting nutrient for microbial communities and plants in glacier forefields. Nitrogen-fixing microorganisms (diazotrophs) play an important role in providing bioavailable nitrogen, with their composition determining the nitrogen-fixating capacities. This study investigates the spatial and temporal dynamics of diazotrophs in the forefields of three Tibetan glaciers: Qiangyong, Kuoqionggangri, and Longxiazailongba. We collected soil samples from recently deglaciated barren grounds, and also along an ecosystem succession transect at Kuoqionggangri glacier, encompassing barren ground, herb steppe, legume steppe, and alpine meadow ecosystems. Our finding revealed abundant and diverse diazotrophs in the recently deglaciated barren ground. They are taxonomically affiliated wi

SUBMITTER: Fu M 

PROVIDER: S-EPMC11557636 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature