ArticleNature communications2026
Plant diversity's positive effect on soil respiration diminishes with increasing productivity in global forests.
Article in Nature communications, 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
Plant diversity is essential for regulating ecosystem functions, yet its global-scale relationship with soil respiration, a critical component of the carbon cycle, remains unexplored. While plant productivity modulates ecosystem processes, understanding how plant species richness regulates soil respiration across net primary production gradients is key to predicting carbon-climate feedbacks. Here, we integrate two global plant species richness datasets (tree species richness and vascular plant species richness, including woody and non-woody plants) with a global soil respiration dataset estimated using a deep learning model trained on 6355 field observations. We demonstrate that plant diversity enhances soil respiration in low- to mid-productivity forests (<1300 g C m
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