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中文摘要：
目前所公布的反刍动物CH4排放量仅是一个估计值，因为影响反刍动物CH4排放的因素较多，使目前所应用的动物CH4排放监测技术都存在较大的不确定性。被发展起来的监测CH4排放的方法都不能准确的监测反刍动物CH4的排放量和动态，不同的测定方法所得结果差异较大，反刍动物CH4排放的精确监测是一个较难的技术问题。相比而言，光谱技术监测反刍动物CH4排放是近年来发展较快、测试结果准确的技术手段。采用改进的红外光谱CH4测量系统，激光技术和近红外光谱传感系统可以实现反刍动物在舍饲条件下及自然放牧状态下CH4排放动态、排放量的精确监测。因此光谱技术是反刍动物CH4监测前沿技术，对精确预测动物CH4排放，提出减排方案具有重要作用。
英文摘要：
The increase in atmospheric CH4 concentration, on the one hand through the radiation process, will directly cause climate change, and on the other hand, cause a lot of changes in atmospheric chemical processes, indirectly causing climate change. The rapid growth of atmospheric methane has gained attention of governments and scientists. All countries in the world now deal with global climate change as an important task of reducing emissions of greenhouse gases, but the need for monitoring the concentration of methane gas, in particular precision monitoring, can be scientifically formulated to provide a scientific basis for emission reduction measures. So far, CH4 gas emissions of different animal production systems have received extensive research. The methane emission by ruminant reported in the literature is only estimation. This is due to the various factors that affect the methane production in ruminant, there are various variables associated with the techniques for measuring methane production, the techniques currently developed to measure methane are unable to accurately determine the dynamics of methane emission by ruminant, and therefore there is an urgent need to develop an accurate method for this purpose. Currently, spectroscopy technique has been used and is relatively a more accurate and reliable method. Various spectroscopy techniques such as modified infrared spectroscopy methane measuring system, laser and near-infrared sensory system are able to achieve the objective of determining the dynamic methane emission by both domestic and grazing ruminant. Therefore spectroscopy technique is an important methane measuring technique, and contributes to proposing reduction methods of methane.
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