fig7
Figure 7. Greenhouse gas contribution rate and principal component analysis of greenhouse gas balance under different stocking rates. (A-C) represent LSR, MSR and HSR systems, respectively. (D) shows RDA analysis. AMGE: Alpine meadow GHG emissions; EFGE: enteric fermentation GHG emissions; FI: farm input; DPGE: dung patches GHG emissions; UPGE: urine patches GHG emissions; MHGE: manure heaps GHG emissions; NPGE: night pens GHG emissions; DBGE: dung burning GHG emissions; SR: stocking rates; MAT: mean annual temperature; MAP: mean annual precipitation.
