Microbial Biogeochemical Cycling of Nitrogen in Arid Ecosystems

作者：Jean‐Baptiste Ramond, Karen Jordaan, Beatriz Dı́ez, Sandra M. Heinzelmann, Don A. Cowan · 发表于：Microbiology and Molecular Biology Reviews · 年份：2022 · DOI：10.1128/mmbr.00109-21 · 被引用次数：98 · 研究领域：Soil Carbon and Nitrogen Dynamics、Biocrusts and Microbial Ecology、Peatlands and Wetlands Ecology

Arid ecosystems cover ∼40% of the Earth’s terrestrial surface and store a high proportion of the global nitrogen (N) pool. They are low-productivity, low-biomass, and polyextreme ecosystems, i.e., with (hyper)arid and (hyper)oligotrophic conditions and high surface UV irradiation and evapotranspiration. These polyextreme conditions severely limit the presence of macrofauna and -flora and, particularly, the growth and productivity of plant species.