我国农业活动CH_4排放的实证检验

The Empirical Study of CH_4 Emission From Agricultural Activities in China

文章基于2005—2015年我国各省市农业活动CH_4排放,检验我国农业活动温室气体排放空间相关性。检验结果显示:我国各省市农业活动CH_4排放强度存在明显正的总体自相关性,部分省市与周边省市农业活动CH_4排放强度存在显著正的局部空间自相关;东部省市农业活动CH_4排放强度区内差异最高,其次是西部地区,中部省市差异最小;省市间农业活动CH_4排放强度区间差异对总体差异贡献率递减,区内差异贡献率逐年增加;农业活动CH_4排放强度与所在地生产总值规模、城镇化率存在显著U型关系,与所在地老年率和交通运输显著正相关,与国际旅游收入显著负相关;农业活动CH_4排放强度存在显著正的空间滞后效应,并且省市间旅游业发展有明显负的空间溢出效应。

This paper is based on the CH_4 emissions of agricultural activities in various provinces and cities of China in2005-2015.The results show that there is a significant and stable spatial agglomeration of the CH_4 emission of agricultural activities in various provinces and cities of China.The northwest and southwest regions are significantly higher and higher.The eastern regions are significantly lower and lower.In the eastern provinces,the regional differences are the most high,followed by the western region,and the regional difference is the lowest.The space spillover effect of traffic and tourism development is obvious.