摘要
农业是全球温室气体排放的第二大重要碳源,农业生产、生活过程中所产生的碳排放在我国碳排放总量中占据重要地位,探究青海省农业碳排放及影响因素,对促进“双碳目标”与低碳农业发展具有现实意义。基于碳排放因子测算法与LMDI模型对青海省农业碳排放量与影响因素进行分析研究,结果表明:(1)2005-2021年青海省农业碳排放总量呈急速上升后缓慢增长趋势,主要来源为农田土壤利用。农业碳排放强度整体下降趋势明显,2006年达到峰值后持续降低。(2)青海省农业碳排放呈东高西低,东部碳排放明显高于南部、西部、北部;农业碳排放强度整体呈东北部较高、西南部较低的空间格局。(3)青海省农业碳排放强度因素、劳动力因素对碳排放量起抑制作用;农业结构因素与经济发展水平因素对碳排放量起促进作用。
Agriculture is the second largest carbon source of global greenhouse gas emissions,and the carbon emissions generated in agricultural production and living processes play an important role in China's total carbon emissions.Exploring agricultural carbon emissions and their influencing factors in Qinghai Province is of practical significance for promoting the “dual carbon goals” and the development of low-carbon agriculture.Based on carbon emission factor measurement algorithm and LMDI model,the agricultural carbon emissions and their influencing factors in Qinghai Province were analyzed and studied.The research results indicate that:(1)From 2005 to 2021,the total amount of agricultural carbon emissions of Qinghai Province showed a trend of rapid growth followed by slow growth,mainly from the use of farmland soil.The overall downward trend of agricultural carbon emission intensity is obvious,and it continues to decline after reaching its peak in 2006.(2)The carbon emissions from agriculture are higher in the east and lower in the west,with the eastern region having significantly higher carbon emissions than the southern,western,and northern regions.The overall spatial pattern of agricultural carbon emission intensity is higher in the northeast and lower in the southwest.(3)The intensity of agricultural carbon emissions and labor factors have inhibitory effects on carbon emissions.Factors such as agricultural structure and economic development level have a promoting effect on carbon emissions.
作者
方志霞
王小梅
Fang Zhixia;Wang Xiaomei(School of Geography,Qinghai Normal University,Xining 810000,China)
出处
《青海科技》
2023年第5期35-42,169,共9页
Qinghai Science and Technology
基金
“政策组合促进青海省光伏产业创新集群建设的策略”(21019)。
关键词
农业
碳排放
LMDI模型
时空演变
影响因素
Agriculture
Carbon emissions
LMDI model
Spatial-temporal evolution
Influence factor
