data.xlsx

We focused on three native species in the Inner Mongolia Grassland: 1) a dominant C₃ grass with the highest <i>H</i> (homeostatic), <i>Leymus chinensis</i>, 2) a subdominant grass, <i>Cleistogenes squarrosa</i> with low <i>H</i>, and 3) a minor forb, <i>Chenopodium glaucum </i>with the lowest <i>H </i>. To test our predictions with a long-term N addition study to assess changes in species abundances with N enrichment over time, and we used a sand culture experiment to assess changes in <i>H</i> with long-term N addition.