Regional Simulation of Soil Organic Carbon Dynamics for Dry Farmland in East China by Coupling a 1:500 000 Soil Database with the Century Model
文献类型：期刊论文
| 作者 | Wang Shi-Hang1,3; Shi Xue-Zheng1,3; Zhao Yong-Cun1,2,3; Weindorf, D. C.2; Yu Dong-Sheng1,3; Xu Sheng-Xiang1,3; Tan Man-Zhi1; Sun Wei-Xia1 |
| 刊名 | PEDOSPHERE
 |
| 出版日期 | 2011-06-01 |
| 卷号 | 21期号:3页码:277-287 |
| 关键词 | agricultural soils CO(2) emissions greenhouse gas soil organic carbon density soil quality |
| ISSN号 | 1002-0160 |
| 通讯作者 | Zhao Yong-Cun(yczhao@issas.ac.cn) |
| 英文摘要 | Changes in soil organic carbon (SOC) in agricultural soils influence soil quality and greenhouse gas concentrations in the atmosphere. Dry farmland covers more than 70% of the whole cropland area in China and plays an important role in mitigating carbon dioxide (CO(2)) emissions. In this study, 4 109 dry farmland soil polygons were extracted using spatial overlay analysis of the soil layer (1:500 000) and the land use layer (1:500 000) to support Century model simulations of SOC dynamics for dry farmland in Anhui Province, East China from 1980 to 2008. Considering two field-validation sites, the Century model performed relatively well in modeling SOC dynamics for dry farmland in the province. The simulated results showed that the area-weighted mean soil organic carbon density (SOCD) of dry farmland increased from 18.77 Mg C ha(-1) in 1980 to 23.99 Mg C ha(-1) in 2008 with an average sequestration rate of 0.18 Mg C ha(-1) year(-1). Approximately 94.9% of the total dry farmland area sequestered carbon while 5.1% had carbon lost. Over the past 29 years, the net SOC gain in dry farmland soils of the province was 19.37 Tg, with an average sequestration rate of 0.67 Tg C year(-1). Augmentation of SOC was primarily due to increased consumption of nitrogen fertilizer and farmyard manure. Moreover, SOC dynamics were highly differentiated among dry farmland soil groups. The integration of the Century model with a fine-scale soil database approach could be conveniently utilized as a tool for the accurate simulation of SOC dynamics at the regional scale. |
| 收录类别 | SCI |
| WOS关键词 | AGRICULTURAL SOILS ; NITROGEN-FERTILIZER ; CO2 EMISSIONS ; NO-TILLAGE ; SEQUESTRATION ; MANAGEMENT ; CROPLANDS ; SCALE ; STORAGE ; CANADA |
| WOS研究方向 | Agriculture |
| WOS类目 | Soil Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000291290700001 |
| 出版者 | SCIENCE CHINA PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558913 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Zhao Yong-Cun |
| 作者单位 | 1.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Peoples R China 2.Louisiana State Univ, AgCtr, Baton Rouge, LA 70803 USA 3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang Shi-Hang,Shi Xue-Zheng,Zhao Yong-Cun,et al. Regional Simulation of Soil Organic Carbon Dynamics for Dry Farmland in East China by Coupling a 1:500 000 Soil Database with the Century Model[J]. PEDOSPHERE,2011,21(3):277-287. |
| APA | Wang Shi-Hang.,Shi Xue-Zheng.,Zhao Yong-Cun.,Weindorf, D. C..,Yu Dong-Sheng.,...&Sun Wei-Xia.(2011).Regional Simulation of Soil Organic Carbon Dynamics for Dry Farmland in East China by Coupling a 1:500 000 Soil Database with the Century Model.PEDOSPHERE,21(3),277-287. |
| MLA | Wang Shi-Hang,et al."Regional Simulation of Soil Organic Carbon Dynamics for Dry Farmland in East China by Coupling a 1:500 000 Soil Database with the Century Model".PEDOSPHERE 21.3(2011):277-287. |
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来源：南京土壤研究所
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