中国反刍动物甲烷排放量的初步估算及减缓技术

Methane emitted from ruminants in China and the mitigation technologies.

根据ＯＥＣＤ提供的反刍动物甲烷排放量计算方法，结合中国反刍动物能量供应的特点，初步估算了中国反刍动物甲烷排放量。反刍动物摄入总能量的６．９％～７．５％通过甲烷排放而损失掉，１９９０年甲烷排放量为５．８０Ｔｇ，约为全球动物排放量的７．２％。文中提出采取秸秆处理，舔砖和过瘤蛋白使用，改善管理等改进措施，不仅可以提高生产水平，也可减少甲烷排放量。

This paper presents a detailed estimation of methane emitted from ruminant animals China. and available. mitigation technologies are discussed.The tesults of estimation show that about 6.9 to 7.5 percent of gross energy taken by ru-minant animals is lost through methane emitted, The total methane emitted from ruminant i China is 5.80 Tg in 1990 or about 7.2 percent of the global methane emitted from ruminat。Straw treatment,multinutrient block and bypass protein technologie,and advanced management are proposed to reduce methane emitted and to increase productivity,There are some un-certainties in estimations due to lack of experimental data,great efforts are needed to improve the estimations and to develop effec-tive technologies for reducing methane emitted