湖南省农业碳排放的时空特征及其影响因子

Spatial-temporal Characteristics and Influencing Factors of Agricultural Carbon Emission in Hunan Province

农业碳排放是区域碳排放的重要组成部分,明确湖南省的农业碳排放特征对于湖南省碳减排政策的制定至关重要。基于2014-2018年湖南省统计年鉴的数据,借助地理信息技术,分析了湖南省2013-2017年农业碳排放的时空特征,并采用LMDI模型分解农业碳排放的影响因素。研究表明:2013-2017年湖南省农业碳排放量呈现先增加后减少的趋势,农业碳排放的峰值出现在2014年,且湖南省农业碳排放以化肥、灌溉和农药产生的碳为主;湖南省农业碳排放的高值区分布在湘北地区和湘南地区,低值区则分布在湘西和湘中地区。农业经济水平会促进湖南省的农业碳排放量,而农业生产效率、农业劳动力规模和农业产业结构则依次是湖南省农业碳排放的主要抑制因子。

Agricultural carbon emission is an important part of regional carbon emissions,it is very important to understand the spatialtemporal characteristics and influencing factors of agricultural carbon emission,which is the basis for the formulation of carbon emission reduction policies in Hunan Province.Based on the data of the Statistical yearbook of Hunan Province from 2014 to 2018,with the help of geographic information technology,we defined the spatial-temporal characteristics of agricultural carbon emissions in Hunan province from 2013 to 2017,and used the LMDI model to determine the influencing factors of agricultural carbon emissions.The results show that the agricultural carbon emissions showed a trend of first increasing and then decreasing in Hunan province from 2013 to 2017,the peak was observed in 2014,mainly due to the production of fertilizers,irrigation and pesticides.The high values of agricultural carbon emissions were divided into northern and southern regions in Hunan Province,while the west and central regions were the low values.Agricultural economic level will promote the agricultural carbon emission,while agricultural production efficiency,scale of agricultural labor and agricultural industrial structure are the main restraining factors of agricultural carbon emission in Hunan Province.