ReviewFundamental research2026
Altered soil nitrogen retention by grassland acidification from near-neutral to acidic conditions: A plant-soil-microbe perspective.
Review in Fundamental research, 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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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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6 authors.
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Abstract
Grassland ecosystems are facing soil acidification, occurring either rapidly or gradually, alongside the persistent threats of acid deposition and nitrogen (N) pollution. However, the understanding of how grassland soils retain N in response to acidification remains limited, despite its critical importance in providing essential services in these ecosystems. Considering the prevalence of near-neutral or weak-acidic (e.g., pH 6) soils in grasslands worldwide, we aim to predict the pathways through which grassland acidification alters soil N retention. Firstly, as soil fungal proportions increase, the carbon:nitrogen ratios of the microbial community also rise, leading to a downregulation of microbial N uptake and retention. Secondly, grassland acidification weakens the stability of soil organic matter (SOM) by physically and chemically dissolving its components, but also conserves SOM by hindering biological mineralization, thereby enhancing N retention. Thirdly, acidification damages 2:1 clay minerals and causes occupation of exchangeable positions by H
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