Conservative agriculture facilitates soil carbon, nitrogen accumulation, and aggregate stabilization under periodic flooding regimes
文献类型：期刊论文
| 作者 | Ran, Yiguo1,2; Zhu, Kai1; Wu, Shengjun1 ; Zhou, Yue1; Li, Wenjuan1,2; Ma, Maohua1; Huang, Ping1
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| 刊名 | CATENA
 |
| 出版日期 | 2022-02-01 |
| 卷号 | 209页码:11 |
| ISSN号 | 0341-8162 |
| 关键词 | Riparian land use Flooding regime C and N accumulation Soil structural stability The dammed-reservoir |
| DOI | 10.1016/j.catena.2021.105783 |
| 通讯作者 | Ma, Maohua(mamaohua@cigit.ac.cn) ; Huang, Ping(huangping@cigit.ac.cn) |
| 英文摘要 | Aggregates play crucial roles in protecting soil carbon (C) and nitrogen (N) loss since aggregates could mediate the effect of environmental factors on the C and N accumulation. As ecotone habitats, reservoir riparian zones undergo disturbances from both land use and dam-regulated flooding, which could pose threats to aggregate stability. Yet, we know little about the effects of the flooding intensity and land use on the dynamics of soil C and N, as well as the mediating role of soil aggregates. In this study, along a flooding gradient, firstly we examined the effects of seven land-use types (corn, rice paddy, and vegetable lands; Chinese fir, willow, and mulberry restored lands; and grassland) on soil C and N accumulation; secondly, we identified the size distribution and stability of aggregates in mediating the effect of riparian land uses under periodic flooding regimes. We found that the C and N concentrations in soil aggregate fractions were all significantly impacted by land-use types, and aggregate-size distribution showed tight links with both land-use types and C and N contents. Conservative farmlands contained a higher proportion of macro-aggregates which stores significantly higher C and N concentrations than micro-aggregates. Notably, higher aggregate stability was also found in conservative farmland. We concluded that, in the riparian ecotone, conservative farming promotes C and N accumulation via stabilizing aggregate fractions, and suggested the conservative practices could be acceptable for soil conservation considering the scarcity of land resources in the ambient mountainous regions. |
| 资助项目 | National Natural Science Foundation of China[41771266] ; National Natural Science Foundation of China[41401243] ; Research Fund of State Key Laboratory of Soil and Sustainable Agriculture, Nanjing Institute of Soil Science, Chinese Academy of Science[Y812000005] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[2017391] ; Fundamental and Frontier Research Project of Chongqing[cstc2017jcyjAX0415] |
| WOS研究方向 | Geology ; Agriculture ; Water Resources |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000711850200001 |
| 源URL | [http://119.78.100.138/handle/2HOD01W0/14410]  |
| 专题 | 中国科学院重庆绿色智能技术研究院 |
| 通讯作者 | Ma, Maohua; Huang, Ping |
| 作者单位 | 1.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Key Lab Reservoir Aquat Environm, Chongqing 400714, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ran, Yiguo,Zhu, Kai,Wu, Shengjun,et al. Conservative agriculture facilitates soil carbon, nitrogen accumulation, and aggregate stabilization under periodic flooding regimes[J]. CATENA,2022,209:11. |
| APA | Ran, Yiguo.,Zhu, Kai.,Wu, Shengjun.,Zhou, Yue.,Li, Wenjuan.,...&Huang, Ping.(2022).Conservative agriculture facilitates soil carbon, nitrogen accumulation, and aggregate stabilization under periodic flooding regimes.CATENA,209,11. |
| MLA | Ran, Yiguo,et al."Conservative agriculture facilitates soil carbon, nitrogen accumulation, and aggregate stabilization under periodic flooding regimes".CATENA 209(2022):11. |
入库方式： OAI收割
来源：重庆绿色智能技术研究院
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