近20年新疆养殖业牲畜甲烷排放量分析

Analysis of Animal Methane Emission in Recent Two Decades in Xinjiang Uyghur Autonomous Region,China

根据IPCC的国家温室气体排放清单编制指南,估算了1988~2007年了新疆动物肠道及粪便的甲烷排放量。结果表明：全区养殖业甲烷排放量多年平均值为271.3 kt/a,年平均增加4.53 kt/a;牲畜肠道甲烷排放量占养殖业总甲烷排放量的95%以上,其中伊犁哈萨克自治州肠道甲烷排放量最多,占地区27.2%;全区牲畜肠道甲烷排放总量大小顺序为：绵羊〉牛〉山羊〉驴〉马〉骆驼〉猪〉骡子;全区牲畜粪便排放量多年平均值为10.9 kt/a,其中伊犁哈萨克自治州牲畜粪便排放量最多,占全区26.8%,全区牲畜粪便甲烷排放总量大小顺序为：猪〉绵羊〉牛〉驴〉马〉山羊〉骆驼〉骡子。由于地区养殖业发展水平与居民生活水平的差异,不同地区养殖业甲烷排放量也有所差异。

According to IPCC guidelines for national greenhouse gas inventories,the methane emission from animal intestine and dejection of Xinjiang Uyghur autonomous region from 1988 to 2007,China,were estimated in this paper.The results showed that the annual animal methane emission were 271.3 kt/a and annual average increase were 4.53 kt/a;the amount of methane emission from animal intestine were more than 95 % of the total emission,in which Ili Kazak autonomous prefecture＇s contributed to 27.2 % of total intestine emission;the total amount of intestine methane emission bulk order for different animals were： sheepcattlegoatsdonkeyshorses camelshogs mules;the annual animal methane emission from dejection were 10.9 kt/a,in which Ili Kazak autonomous prefecture＇s were contributed 26.8 % of total,the total amount of dejection methane emission bulk order for different animals were： hogsdonkeycattlecamelshorsesmulessheepgoats.