Carbon sequestration potential of recommended management practices for paddy soils of China, 1980-2050
文献类型：期刊论文
| 作者 | Xu, Shengxiang1,2; Shi, Xuezheng1,2; Zhao, Yongcun1,2; Yu, Dongsheng1,2; Li, Changsheng3; Wang, Shihang1,2; Tan, Manzhi1; Sun, Weixia1 |
| 刊名 | GEODERMA
 |
| 出版日期 | 2011-10-30 |
| 卷号 | 166期号:1页码:206-213 |
| 关键词 | 1:1,000,000 soil database Carbon sequestration DNDC Management practice Paddy soil Soil organic carbon |
| ISSN号 | 0016-7061 |
| DOI | 10.1016/j.geoderma.2011.08.002 |
| 通讯作者 | Zhao, Yongcun(yczhao@issas.ac.cn) |
| 英文摘要 | China's rice paddies, accounting for 19% of the world's total, play an important role in soil carbon (C) sequestration. In order to reduce uncertainties from upscaling spatial processes of the DeNitrification-DeComposition (DNDC) model for improving the understanding of C sequestration under recommended management practices (RMPs), we parameterized the DNDC model with a 1:1,000,000 polygonal soil database to estimate how RMPs influence potential C sequestration of the top 30 cm of Chinese paddy soils and to identify which management practices have the greatest potential to increase soil organic carbon (SOC) in these soils. These practices include reduced/no tillage, increasing crop residue return, and increasing manure applications. A baseline and eleven RMP scenarios were projected from 2009 to 2080, including traditional and conservation tillage, increasing crop residue return, increasing manure incorporation, and the combination of these practices. The results indicated that C sequestration potential under modeled RMPs increased compared to the baseline scenario, and varied greatly from 29.2 to 847.7 Tg C towards the end of the study period with an average rate of 0.7 to 20.2 Tg C yr(-1). In general, increasing crop residue return was associated with higher rates of C sequestration when compared to increasing manure application or practicing conservation tillage. The simulations demonstrated that the most effective soil C sequestration strategy probably involves the implementation of a combination of RMPs, and that they vary by location. (C) 2011 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| WOS关键词 | GREENHOUSE-GAS EMISSIONS ; AGRICULTURAL SOILS ; ORGANIC-CARBON ; DNDC MODEL ; METHANE EMISSION ; NORTHEAST CHINA ; CLIMATE-CHANGE ; ARABLE SOILS ; NO-TILLAGE ; NITROGEN |
| WOS研究方向 | Agriculture |
| WOS类目 | Soil Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000296043800021 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2559043 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Zhao, Yongcun |
| 作者单位 | 1.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China 3.Univ New Hampshire, Complex Syst Res Ctr, Inst Study Earth Oceans & Space, Durham, NH 03824 USA |
| 推荐引用方式 GB/T 7714 | Xu, Shengxiang,Shi, Xuezheng,Zhao, Yongcun,et al. Carbon sequestration potential of recommended management practices for paddy soils of China, 1980-2050[J]. GEODERMA,2011,166(1):206-213. |
| APA | Xu, Shengxiang.,Shi, Xuezheng.,Zhao, Yongcun.,Yu, Dongsheng.,Li, Changsheng.,...&Sun, Weixia.(2011).Carbon sequestration potential of recommended management practices for paddy soils of China, 1980-2050.GEODERMA,166(1),206-213. |
| MLA | Xu, Shengxiang,et al."Carbon sequestration potential of recommended management practices for paddy soils of China, 1980-2050".GEODERMA 166.1(2011):206-213. |
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来源：南京土壤研究所
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