Changes in Air Quality from the COVID to the Post-COVID Era in the Beijing-Tianjin-Tangshan Region in China
文献类型：期刊论文
| 作者 | Guo, Qingchun; Wang, Zhaosheng; He, Zhenfang; Li, Xinzhou; Meng, Jingjing; Hou, Zhanfang; Yang, Jiaoxue |
| 刊名 | AEROSOL AND AIR QUALITY RESEARCH
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| 出版日期 | 2021 |
| 卷号 | 13期号:11页码:- |
| 关键词 | nutrient per capita grain consumption grain security Qinghai-Tibet Plateau |
| 英文摘要 | Background: Grain security is crucial for social stability and ecosystem conservation regionally and globally, and it is particularly concerned widely in the Qinghai-Tibet Plateau (QTP) due to its high altitude and harsh climate for agriculture. Method: In this paper, we calculated and analyzed per capita food and grain consumption, including direct grain consumption, grain for fodder, industry consumption, seeds consumption, and wastage consumption and its changes in the QTP during 1995-2019. Results: The results showed that (1) in 2019, the average food consumption per capita was 333.35 kg, was stable since 1995. The dietary structure of residents was composed of direct grain consumption (44.15%), meat (10.72%), and milk (6.94%). The consumption of meat and milk was higher than the national average. (2) The average daily intake of energy and protein, animal protein, and the ratio of high-quality protein and fat energy were 2156.21 kcal & BULL;d(-1), 73.53 g & BULL;d(-1), 23.06 g & BULL;d(-1), 38.32%, and 27.77% in 2019. Their changes were -342.98 kcal & BULL;d(-1), -8.91 g & BULL;d(-1), 11.16 g & BULL;d(-1), 18.37%, and 11.08%, respectively. (3) The corresponding grain consumption per capita was 284.90 kg & BULL;a(-1) in 1995, 262.19 kg & BULL;a(-1) in 2010, and then remained stable until 2019. Conclusion: The study suggested that food consumption per capital was guaranteed at the well-off level since 2010, and food and dietary structure of residents were corresponding to physical geographic and climatic environment in the QTP. The conflict between food security and the ecosystem conservation can be managed without scarifying nature as the total grain consumption was stable since 2010, and the yield per unit area and total grain yield were both increasing since 2003 for agricultural condition improved in the QTP. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/46715]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China 2.Liaocheng Univ, Sch Geog & Environm, Liaocheng 252000, Shandong, Peoples R China 3.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China 4.Chinese Acad Sci, Natl Ecosyst Sci Data Ctr, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China 5.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Guo, Qingchun,Wang, Zhaosheng,He, Zhenfang,et al. Changes in Air Quality from the COVID to the Post-COVID Era in the Beijing-Tianjin-Tangshan Region in China[J]. AEROSOL AND AIR QUALITY RESEARCH,2021,13(11):-. |
| APA | Guo, Qingchun.,Wang, Zhaosheng.,He, Zhenfang.,Li, Xinzhou.,Meng, Jingjing.,...&Yang, Jiaoxue.(2021).Changes in Air Quality from the COVID to the Post-COVID Era in the Beijing-Tianjin-Tangshan Region in China.AEROSOL AND AIR QUALITY RESEARCH,13(11),-. |
| MLA | Guo, Qingchun,et al."Changes in Air Quality from the COVID to the Post-COVID Era in the Beijing-Tianjin-Tangshan Region in China".AEROSOL AND AIR QUALITY RESEARCH 13.11(2021):-. |
入库方式： OAI收割
来源：生态环境研究中心
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