Biochar Addition Reduces the Effect of High Nitrogen on Soil-Microbial Stoichiometric Imbalance in Abandoned Grassland on the Loess Plateau of China.

Progressively higher atmospheric nitrogen (N) deposition increasingly affects soil ecosystems' elemental cycling and stability. Biochar (BC) amendment has emerged as a possible means of preserving soil system stability. Nevertheless, the pattern of soil-microbial nutrient cycling and system stability in response to BC after high N deposition in ecologically sensitive regions remains uncertain.