Soil Carbon Sequestration Potential as Affected by Management Practices in Northern China: A Simulation Study
文献类型：期刊论文
| 作者 | Wang Guo-Cheng; Wang En-Li; Huang Yao2 ; Xu Jing-Jing
|
| 刊名 | PEDOSPHERE
 |
| 出版日期 | 2014 |
| 卷号 | 24期号:4页码:529-543 |
| 关键词 | agro-ecosystems APSIM model fertilizer application irrigation residue retention scenario analysis soil organic carbon |
| ISSN号 | 1002-0160 |
| DOI | 10.1016/S1002-0160(14)60039-4 |
| 文献子类 | Article |
| 英文摘要 | Soil has been identified as a possible carbon (C) sink for sequestering atmospheric carbon dioxide (CO2). However, soil organic carbon (SOC) dynamics in agro-ecosystems is affected by complex interactions of various factors including climate, soil and agricultural management practices, which hinders our understanding of the underlying mechanisms. The objectives of this study were to use the Agricultural Production Systems sIMulator (APSIM) model to simulate the long-term SOC dynamics under different management practices at four long-term experimental sites, Zhengzhou and Xuzhou with double cropping systems and Gongzhuling and Urumqi with single cropping systems, located in northern China. Firstly, the model was calibrated using information from the sites and literature, and its performance to predict crop growth and SOC dynamics was examined The calibrated model was then used to assess the impacts of different management practices, including fertilizer application, irrigation, and residue retention, on C dynamics in the top 30 cm of the soil by scenario modelling. Results indicate a significant SOC sequestration potential through improved management practices of nitrogen (N) fertilizer application, stubble retention, and irrigation. Optimal N fertilization (N-opt) and 100% stubble retention (R100) increased SOC by about 11.2%, 208.29%, and 283.67% under irrigation at Gongzhuling, Zhengzhou, and Xuzhou, respectively. Soil organic carbon decreased rapidly at Urumqi under irrigation, which was due to the enhanced decomposition by increased soil moisture. Under rainfed condition, SOC remained at a higher level. The combination of Nopt and R100 increased SOC by about 0.46% under rainfed condition at Urumqi. Generally, agricultural soils with double cropping systems (Zhengzhou and Xuzhou) showed a greater potential to sequester C than those with single cropping systems (Gongzhuling and Urumqi). |
| 学科主题 | Soil Science |
| 出版地 | BEIJING |
| 电子版国际标准刊号 | 2210-5107 |
| WOS关键词 | ORGANIC-CARBON ; NITROGEN-FERTILIZATION ; AGRICULTURAL REGIONS ; BIOMASS RESOURCES ; WATER-USE ; CLIMATE ; TILLAGE ; CROPLANDS ; APSIM ; DECOMPOSITION |
| WOS研究方向 | Agriculture |
| 语种 | 英语 |
| WOS记录号 | WOS:000339141900011 |
| 出版者 | SCIENCE PRESS |
| 资助机构 | National Basic Research Program (973 Program) of China [2010CB950604] ; National Natural Science Foundation of China [41075108] |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/27239]  |
| 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 Atmospher Phys, State Key Lab Atmospher Boundary Layer Phys & Atm, Beijing 100029, Peoples R China 2.CSIRO Land & Water, Canberra, ACT 2601, Australia 3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change LVEC, Beijing 100093, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang Guo-Cheng,Wang En-Li,Huang Yao,et al. Soil Carbon Sequestration Potential as Affected by Management Practices in Northern China: A Simulation Study[J]. PEDOSPHERE,2014,24(4):529-543. |
| APA | Wang Guo-Cheng,Wang En-Li,Huang Yao,&Xu Jing-Jing.(2014).Soil Carbon Sequestration Potential as Affected by Management Practices in Northern China: A Simulation Study.PEDOSPHERE,24(4),529-543. |
| MLA | Wang Guo-Cheng,et al."Soil Carbon Sequestration Potential as Affected by Management Practices in Northern China: A Simulation Study".PEDOSPHERE 24.4(2014):529-543. |
入库方式： OAI收割
来源：植物研究所
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