ArticleFrontiers in microbiology2026
Soil fungal alpha diversity is associated with grassland productivity across a natural aridity gradient.
Article in Frontiers in microbiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Drylands are expanding as a consequence of ongoing climate change, yet the mechanisms through which soil microbiomes are associated with grassland productivity across aridity gradients remain unclear. Here, we characterized bacterial and fungal communities across four sites spanning a natural aridity gradient (from semi-humid to arid) in Inner Mongolia, encompassing meadow, typical, and desert steppes, to assess how microbial diversity, interaction networks, and assembly processes are related to above- and below-ground net primary productivity (NPP). Fungal phylogenetic diversity dropped notably with increasing aridity, decreasing from 200.09 at the semi-humid site to 86.03 at the arid site, representing a 57.0% reduction across the gradient, accompanied by reduced network complexity, intensified deterministic environmental filtering, and an enrichment of drought-tolerant taxa such as
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