Can cropland management practices lower net greenhouse emissions without compromising yield?
文献类型：期刊论文
| 作者 | Shang, Ziyin2; Abdalla, Mohamed; Xia, Longlong5; Zhou, Feng4; Sun, Wenjuan3; Smith, Pete |
| 刊名 | GLOBAL CHANGE BIOLOGY
 |
| 出版日期 | 2021 |
| 卷号 | 27期号:19页码:4657-4670 |
| 关键词 | global warming manure substitution net greenhouse gas balance residue retention water saving zero-tillage |
| ISSN号 | 1354-1013 |
| DOI | 10.1111/gcb.15796 |
| 文献子类 | Article |
| 英文摘要 | Smart cropland management practices can mitigate greenhouse gas (GHG) emissions while safeguarding food security. However, the integrated effects on net greenhouse gas budget (NGHGB) and grain yield from different management practices remain poorly defined and vary with environmental and application conditions. Here, we conducted a global meta-analysis on 347 observation sets of non-CO2 GHG (CH4 and N2O) emissions and grain yield, and 412 observations of soil organic carbon sequestration rate (SOCSR). Our results show that for paddy rice, replacing synthetic nitrogen at the rate of 30%-59% with organic fertilizer significantly decreased net GHG emissions (NGHGB: -15.3 +/- 3.4 [standard error], SOCSR: -15.8 +/- 3.8, non-CO2 GHGs: 0.6 +/- 0.1 in Mg CO2 eq ha(-1) year(-1)) and improved rice yield (0.4 +/- 0.1 in Mg ha(-1) year(-1)). In contrast, intermittent irrigation significantly increased net GHG emissions by 11.2 +/- 3.1 and decreased rice yield by 0.4 +/- 0.1. The reduction in SOC sequestration by intermittent irrigation (15.5 +/- 3.3), which was most severe (>20) in alkaline soils (pH > 7.5), completely offset the mitigation in CH4 emissions. Straw return for paddy rice also led to a net increase in GHG emissions (NGHGB: 4.8 +/- 1.4) in silt-loam soils, where CH4 emissions (6.3 +/- 1.3) were greatly stimulated. For upland cropping systems, mostly by enhancing SOC sequestration, straw return (NGHGB: -3.4 +/- 0.8, yield: -0.5 +/- 0.6) and no-tillage (NGHGB: -2.9 +/- 0.7, yield: -0.1 +/- 0.3) were more effective in warm climates. This study highlights the importance of carefully managing croplands to sequester SOC without sacrifice in yield while limiting CH4 emissions from rice paddies. |
| 学科主题 | Biodiversity Conservation ; Ecology ; Environmental Sciences |
| 出版地 | HOBOKEN |
| 电子版国际标准刊号 | 1365-2486 |
| WOS关键词 | SOIL ORGANIC-CARBON ; WATER MANAGEMENT ; METHANE EMISSION ; NO-TILL ; GAS EMISSIONS ; RICE ; NITROGEN ; PRODUCTIVITY ; PADDY ; RESIDUE |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| 语种 | 英语 |
| WOS记录号 | WOS:000674857700001 |
| 出版者 | WILEY |
| 资助机构 | Horizon 2020 Framework Programme [774124] ; China Scholarship Council [201706010406] |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/26459]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China 2.Univ Aberdeen, Inst Biol & Environm Sci, 23 St Machar Dr, Aberdeen AB24 3UU, Scotland 3.Peking Univ, Sino France Inst Earth Syst Sci, Coll Urban & Environm Sci, Lab Earth Surface Proc, Beijing, Peoples R China 4.Karlsruhe Inst Technol, Inst Meteorol & Climate Res IMK IFU, Garmisch Partenkirchen, Germany 5.Chinese Acad Agr Sci, Inst Crop Sci, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shang, Ziyin,Abdalla, Mohamed,Xia, Longlong,et al. Can cropland management practices lower net greenhouse emissions without compromising yield?[J]. GLOBAL CHANGE BIOLOGY,2021,27(19):4657-4670. |
| APA | Shang, Ziyin,Abdalla, Mohamed,Xia, Longlong,Zhou, Feng,Sun, Wenjuan,&Smith, Pete.(2021).Can cropland management practices lower net greenhouse emissions without compromising yield?.GLOBAL CHANGE BIOLOGY,27(19),4657-4670. |
| MLA | Shang, Ziyin,et al."Can cropland management practices lower net greenhouse emissions without compromising yield?".GLOBAL CHANGE BIOLOGY 27.19(2021):4657-4670. |
入库方式： OAI收割
来源：植物研究所
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