To study the effects of stack height and sawdust covering depth on ammonia and greenhouse gas(GHG)emissions from swine manure,and the global warming potential,two stack heights(20 cm and 40 cm)of swine manure and three covering depths of sawdust(0,10 cm,and 20 cm)were selected to form six treatments.Each treatment was carried out in triplicate.Continuous measurements of ammonia and GHG emissions were carried out using a dynamic system.The experiment lasted 42 days.The results showed that a higher manure stack(40 cm)significantly reduced NH_3,N_2O,and CO_2 emissions,in terms of emissions per kilogram initial manure.However,CH_4 emissions showed a completely different trend from that of the NH_3,N_2O,and CO_2 emissions.Sawdust covering reduced the cumulative NH_3 and CO_2 emissions from swine manure during storage,in terms of emissions per kilogram initial manure,but simultaneously increased the cumulative CH_4 emissions.Sawdust covering had different effects on the N_2O emissions from swine manure at different stack heights.The covering increased the cumulative N_2O emission for the 20 cm stack height of swine manure,but reduced it for the 40 cm stack height.The cumulative GHG emissions from swine manure were 36.62~62.83 g·kg~(-1) of initial manure weight(based on CO_2).Sawdust covering reduced the total GHG emission by 11.59%~23.61%,but there was no significant difference between covered and uncovered samples.Compared with that for the 20 cm stack height of swine manure,the total GHG emission reduction was 36.26%~41.48% for the 40 cm stack height.A higher stack produced the least GHG emissions from swine manure during storage.