Responses of Ecosystem CO₂ Fluxes to Short-Term Experimental Warming and Nitrogen Enrichment in an Alpine Meadow, Northern Tibet Plateau

Figure 6

Dependence of soil respiration on air temperature (A, a), soil temperature (B, b), and soil water content (C, c) on seasonal (A, B, C) and diurnal (a, b, c) scales. Solid circles represent simulated warming treatment (W) and open circles represent ambient treatment (A). NS, *, and ** represent significant levels 𝑃≥0.05, 𝑃<0.05, and 𝑃<0.01, respectively. The following is the same. 𝑄₁₀ represents the sensitivity of ecosystem respiration to temperature.