安顺市畜禽养殖碳排放时空差异研究

Study on Spatial-temporal Difference of Carbon Emission from Livestock and Poultry Breeding in Anshun City

畜禽养殖是农业碳源之一。根据安顺市畜禽数量,估算2001—2015年安顺市畜禽碳排放量。从畜禽碳排放结构、碳排放变异系数、碳排放密度、碳排放经济强度4个方面对其进行分析。研究结果显示:(1)安顺市2001—2006年的畜禽碳排放量连续增长,由86.91万t增长到113.06万t,2007年下降到84.31万t;2007—2010年缓慢增长;2011—2013年相对平稳;2014—2015年又增长。(2)畜禽碳排放主要来自牛和猪,牛年均碳排放量为70.70万t。(3)安顺市2003—2007年各区县畜禽碳排放绝对差异呈现扩大趋势,2008—2014年差异性呈现减小趋势。(4)西秀区的畜禽碳排放密度最高,平坝县最低;镇宁县的畜禽碳排放经济强度最高;紫云县次之;关岭县最低。安顺市政府部门应该研制并推广畜禽养殖温室气体减排技术,降低畜禽养殖碳排放量。

This paper calculated the animals carbon emission in Anshun from 2001 to 2015, analysed the ani-mals carbon emission from structure, coefficient variation of carbon emission, the carbon emission density, the car-bon emission economic intensity, and analysed the relationship between economic development and carbon emission of animals. The results showed that： 1） The amount of carbon emission of animals increased from 0.869 1 million ton to 1.130 6 million tons from 2001 to 2006. However, it declined to 0.843 1 million ton in 2007, it slow growth from 2007 to 2010, and it relatively stable from 2011 to 2013, it increased from 2014 to 2015. 2） The amount of carbon emission mainly from cattle and pig, annual carbon emission was 0.707 million ton from cattle. 3） The abso-lute difference of carbon emission was increased from 2003 to 2007 in each district, but it was decreased from 2008 to 2014. 4） From the spatial difference, the animals carbon emission density was the highest in Xixiu District, the lowest in Pingba County. The economic intensity of carbon emission was the highest in Zhenning County, second is Ziyun, the lowest is Guanling County. Based on amount of animals carbon emission, in order to ensure livestock and poultry breeding sustainable development, government should develop and popularize technology of reducing animals greenhouse gas emission in Anshun City.