Status of mineral nitrogen fertilization and net mitigation potential of the state fertilization recommendation in Chinese cropland
文献类型：期刊论文
| 作者 | Zhang, Guo; Wang, Xiaoke; Sun, Binfeng; Zhao, Hong; Lu, Fei; Zhang, Lu |
| 刊名 | AGRICULTURAL SYSTEMS
 |
| 出版日期 | 2016-07 |
| 卷号 | 146页码:1-10 |
| 关键词 | Carbon sequestration Greenhouse gas Net mitigation potential Nitrogen fertilizer Optimum fertilization |
| 英文摘要 | The overuse of mineral nitrogen (N) fertilizer is widespread and affects greenhouse gas (GHG) emission in China. In 2013, the Ministry of Agriculture released the 'Recommendation for soil nutrient analysis-based mineral fertilizer application for corn, wheat and rice' (hereafter the Recommendation). The aims of this study were to estimate current mineral N fertilization and net mitigation potential (NMP) for the Recommendation in the three main crops in China. To estimate the NMP from the Recommendation concerning the fertilizer recommendation (FR) scenario, we designed a current situation (CS) scenario by conducting a field questionnaire survey across typical cropping regions in China. Our results indicate that annual N fertilization amount was 19.1 +/- 1.2 (95% confidence interval) Mt N applied to the 66 M ha of Chinese cropland in the CS scenario and would decrease by about 7.1 Mt N in the FR scenario. This decrease might mitigate 37.4 +/- 5.2% of GHG emissions including carbon dioxide (CO2) from production and transport of N fertilizer, and nitrous oxide from soil due to N fertilization. Carbon (C) sequestration was 11.1 +/- 0.71 Tg C yr(-1) under both scenarios. The NMP was 23.9 +/- 3.4 Tg Ceq yr(-1) in the FR scenario and might offset 1.1 +/- 0.16% of CO2 emissions from fossil fuel combustion in 2011 in China. In conclusion, implementation of the Recommendation could be a sustainable and cost-effective N management system to mitigate GHG emissions in Chinese cropland. (C) 2016 Elsevier Ltd. All rights reserved. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/35670]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Zhang, Guo,Wang, Xiaoke,Sun, Binfeng,et al. Status of mineral nitrogen fertilization and net mitigation potential of the state fertilization recommendation in Chinese cropland[J]. AGRICULTURAL SYSTEMS,2016,146:1-10. |
| APA | Zhang, Guo,Wang, Xiaoke,Sun, Binfeng,Zhao, Hong,Lu, Fei,&Zhang, Lu.(2016).Status of mineral nitrogen fertilization and net mitigation potential of the state fertilization recommendation in Chinese cropland.AGRICULTURAL SYSTEMS,146,1-10. |
| MLA | Zhang, Guo,et al."Status of mineral nitrogen fertilization and net mitigation potential of the state fertilization recommendation in Chinese cropland".AGRICULTURAL SYSTEMS 146(2016):1-10. |
入库方式： OAI收割
来源：生态环境研究中心
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。