Soil inorganic carbon (SIC) is the largest pool (≈ 950 Pg of soil carbonate+ 1404 Pg of
bicarbonate in groundwater; ie, 1 Pg= 10 15 g= 1 gigaton) of the global carbon cycle at a …

Nutrient enrichment is a major global change component that often disrupts the relationship
between aboveground biodiversity and ecosystem functions by promoting species …

Nitrogen (N) availability has been considered as a critical factor for the cycling and storage
of soil organic carbon (SOC), but effects of N enrichment on the SOC pool appear highly …

Long‐term elevated nitrogen (N) input from anthropogenic sources may cause soil
acidification and decrease crop yield, yet the response of the belowground microbial …

Microbial growth and respiration are at the core of the soil carbon (C) cycle, as these
microbial physiological performances ultimately determine the fate of soil C. Microbial C use …

The availability of nitrogen (N) is a critical control on the cycling and storage of soil carbon
(C). Yet, there are conflicting conceptual models to explain how N availability influences the …

Impacts of reactive nitrogen (N) inputs on ecosystem carbon (C) dynamics are highly
variable, and the underlying mechanisms remain unclear. Here, we proposed a new …

Higher ecosystem nitrogen (N) inputs resulting from human activities often suppress soil
microbial biomass and respiration, thereby altering biogeochemical cycling. Soil …

Soil acidification induced by reactive nitrogen (N) inputs can alter the structure and function
of terrestrial ecosystems. Because different N‐transformation processes contribute to the …

Empirical studies show that nitrogen (N) addition often reduces microbial decomposition of
soil organic matter (SOM) and carbon dioxide (CO 2) production via microbial respiration …