青海省畜牧CO2排放强度的时空演变特征及其影响因素研究OA北大核心

Livestock CO2 emissions constitute a significant source of greenhouse gases.This study analyzed the spatial and temporal distribution patterns of livestock CO2 emissions intensity in Qinghai Province from 2008 to 2018.In this study,a geographical model was utilized to explore the intensity of the impact and the interactions of various factors on the spatial and temporal changes in livestock CO2 emission intensities.The study found that:1)With the implementation of ecological protection measures and the formulation of ecological animal husbandry practices in Qinghai Province,the intensity of animal husbandry CO2 emissions decreased by 48.05% from 2008 to 2018,and the animal husbandry industry showed a trend towards development of a low-carbon status;2)Between 2008 and 2018,the center of gravity of CO2 emission intensity of animal husbandry migrated westward and southward by 17.99 km,and as of 2018,the CO2 emission footprint of the livestock industry showed an obvious pattern of stronger intensity in the south and weaker intensity in the north.This indicates that the southern region of Qinghai Province still has a large potential for livestock CO2 emission reduction,and there is an urgent need to accelerate agricultural industrial structure adjustment and promote the upgrading of livestock farming technology;3)The factors influencing the change in livestock CO2 emission intensity have shifted from combined factors such as the natural resource endowment,economy,and market demand to economic development indicators such as livestock output value and urbanization;4)The interaction between the economic level of livestock and product structure factors has gradually replaced the interaction between natural resource endowment and similar factors,and the former is now becoming the key factor affecting the spatial distribution of livestock CO2 emission intensity.The results of the study indicate that Qinghai Province,through the development of ecologically improved livestock farming practices,has gradually moved away from the traditional extensive mode of livestock development relying on natural endowments,has improved production efficiency,and has achieved carbon emission reduction in the livestock industry.However,there still exists considerable space for reducing carbon emissions in the livestock industry,requiring continued promotion of ecologically improved livestock farming practices and rural industrial structure adjustment,together with acceleration of industrial transformation and upgrading,to ensure the development of a low-carbon livestock industry.This study provides scientific analysis to assist the formulation of livestock emission reduction policies as part of the development of a sustainable,low-carbon livestock industry in Qinghai Province and in China.