Instability of decoupling livestock greenhouse gas emissions from economic growth in livestock products in the Tibetan highland
文献类型：期刊论文
| 作者 | Bai, Yanfu; Guo, Cancan; Li, Shanshan; Degen, A. Allan; Ahmad, Anum Ali; Wang, Wenyin; Zhang, Tao; Huang, Mei; Shang, Zhanhuan |
| 刊名 | JOURNAL OF ENVIRONMENTAL MANAGEMENT
 |
| 出版日期 | 2021 |
| 卷号 | 287 |
| 关键词 | GHG emissions efficiency Livestock husbandry Decoupling elasticity model Tibetan plateau Extreme weather events |
| 英文摘要 | Livestock production is the major livelihood for a growing local population on the Tibetan plateau. However, government policy is to reduce the number of livestock due to the large quantities of greenhouse gasses (GHG), in particular methane, produced by ruminants and the degradation of the grasslands. For this policy to be effective, with little effect on livelihoods, there should be a decoupling of GHG emissions from economic growth of livestock products. This study examined the synergetic effects of policies, extreme climate events and GHG emissions from livestock at the headwater region of the Yellow River since 1980. Optimization models of GHG emissions efficiency and drivers were developed and parameterized. Trade-offs between GHG emissions from livestock and economic growth from livestock, determined by the decoupling model, showed that from 1980 to 2015: 1) the GHG emissions decreased by 39%; (2) CH4 emissions from livestock decreased by 33%, and yaks emitted the most (accounted for 99.6%) among livestock; (3) N2O emissions decreased by 34%; (4) trade-offs between livestock GHG emissions and grassland uptake indicated that the grazing livestock system functioned as a net carbon sink; (5) the efficiency factor, especially technical efficiency, was the main driver of GHG emissions; and (6) GHG emissions from livestock were in a decoupling state from economic growth from livestock. However, decoupling has not been stable as inter-annual fluctuations have been large mainly due to extreme climatic events, such as snowstorm disasters, which indicates that the grazing system was still relatively fragile. The GHG emissions can be reduced further by mitigating CH4 emissions, and enhancing CO2 sequestration on grazed pastureland. The ongoing transformation of livestock industry development on the Tibetan plateau is associated with uncertainty under the background of global GHG mitigation. |
| 源URL | [http://210.75.249.4/handle/363003/60799]  |
| 专题 | 西北高原生物研究所_中国科学院西北高原生物研究所 |
| 推荐引用方式 GB/T 7714 | Bai, Yanfu,Guo, Cancan,Li, Shanshan,et al. Instability of decoupling livestock greenhouse gas emissions from economic growth in livestock products in the Tibetan highland[J]. JOURNAL OF ENVIRONMENTAL MANAGEMENT,2021,287. |
| APA | Bai, Yanfu.,Guo, Cancan.,Li, Shanshan.,Degen, A. Allan.,Ahmad, Anum Ali.,...&Shang, Zhanhuan.(2021).Instability of decoupling livestock greenhouse gas emissions from economic growth in livestock products in the Tibetan highland.JOURNAL OF ENVIRONMENTAL MANAGEMENT,287. |
| MLA | Bai, Yanfu,et al."Instability of decoupling livestock greenhouse gas emissions from economic growth in livestock products in the Tibetan highland".JOURNAL OF ENVIRONMENTAL MANAGEMENT 287(2021). |
入库方式： OAI收割
来源：西北高原生物研究所
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