Spatial-temporal Evolution and Emission Reduction Path of Carbon Emissions from Mutton Sheep Breeding in China
In order to identify the spatial-temporal evolution characteristics of carbon emissions from mutton sheep breeding in China and explore its emission reduction path,this study adopted partial life cy-cle method to measure the carbon emissions from mutton sheep breeding in China's provinces(municipali-ties and autonomous regions)from 2002 to 2019.The LMDI model was established by integrating produc-tion efficiency,regional structure,industrial structure,scale effect and technological development into the same research framework.The results show that the carbon emission from gastrointestinal fermentation and fecal management system are the main sources of carbon emissions from mutton sheep breeding,which accounting for 75.58%~90.75%.The carbon emissions of feed grain planting,feed grain processing and mutton sheep raising all show an increasing trend,in particular,the growth rate of feed grain planting is more significant.China's medium and slightly high carbon emission areas of mutton sheep breeding show an obvious dynamic evolution trend,while the spatial pattern of low and high carbon emission areas remain basically unchanged.Scale effect is the largest contributor to carbon emission reduction in mutton sheep breeding,and technology development effect is the main driving factor of carbon emission increase.