MODELING THE EFFECTS OF PASTURE EXPANSION ON EMISSIONS FROM LAND-USE CHANGE
构建了一个全球农业温室气体模型，评估牧场扩张和集约化对土地利用变化排放的影响，并应用于美国牛甲烷税情景，发现全球牧场扩张导致排放增加。
We present a global agricultural greenhouse gas model that assesses emissions from land-use change. In addition to evaluating shifts in and out of crop production, we develop a pasture model to assess extensification and intensification of global livestock production based on herd size and stocking rate. We apply the model to a scenario that introduces a tax on me-thane emissions from cattle in the United States. The resulting expansion of pasture in the rest of the world leads to substantially higher emissions than without the tax. The yearly average emissions from the tax are 260 metric tons of CO2-equivalent.