中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 水土保持研究所
  3. 中国科学院水利部水土保持研究所
  4. 水保所科研产出--SCI
  5. 2017--SCI
Response of sedimentary organic matter source to rainfall events using stable carbon and nitrogen isotopes in a typical loess hilly-gully catchment of China

文献类型：期刊论文

作者Dong, YT (reprint author), Chinese Acad Sci, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China.; Dong, YT (reprint author), MWR, Yangling 712100, Shaanxi, Peoples R China.; Wang, Danyang3,4; Xiao, Haibing1,2; Liu, Lin1,2; Nie, Xiaodong3,4; Liu, Chun1,2; Li, Zhongwu1,2; Dong, Yuting1,2; Peng, Hao3,4
刊名JOURNAL OF HYDROLOGY
出版日期2017
卷号552页码:376-386
关键词Source Tracing Isotopes Sedimentary Organic Matter Rainfall Soil Erosion Loess Plateau
ISSN号0022-1694
DOI10.1016/j.jhydrol.2017.07.006
文献子类Article
英文摘要Understanding the information on sedimentary organic matter (SOM) source is of great importance for better understanding biogeochemical cycling and terrestrial carbon sequestration on the Earth's surface. Such information, especially during field rainfall process, however, is unavailable or difficult to assemble. In order to further study the dynamic variation of sedimentary organic matter source during rainfall process, suspended sediment were sampled manually at the outlet of two paired typical hilly-gully watersheds of Loess Plateau in China [Qiaozi East watershed (QEW) and Qiaozi West watershed (QWW)], and source materials included subsoil (i.e., soils from channel bank and gully bank) and topsoil (i.e., surface soils from different slope positions in land uses), along with C-3 and C-4 plants. In this study reported, natural stable isotopes (C-13 and N-15) and elemental compositions (TOC and TN), combined with a isotope mixing model (stable isotope analysis in R, SIAR) were successfully used to assemble this information. The results showed that the response of source contributions to SOM displayed difference significantly during different rainfall processes, showing fluctuation with flow. Subsoil was the main source of SOM pool for two similar small watersheds (accounting for 38.50% for QWW and 35.63% for QEW). Minor contribution was sourced from the C-3 and C-4 plants (< 25%), but only 10% for the C-4 plants, indicating that the C-3 plants dominated the input of organic matter in superficial soils of this study region. The source of sedimentary organic matter transported by erosion showed different contribution proportions from potential sources in two similar small watersheds with different management practices, indicating that management practice could decrease the soil organic matter loss by reducing the sediment transportation and flow during rainfall process in the Loess Plateau of China. (C) 2017 Elsevier B.V. All rights reserved.
学科主题Engineering ; Geology ; Water Resources
URL标识查看原文
出版地AMSTERDAM
语种英语
WOS记录号WOS:000411541800029
出版者ELSEVIER SCIENCE BV
资助机构Hundred-talent Project of the Chinese Academy of Sciences; National Natural Science Foundation of China [41271294] ; Hundred-talent Project of the Chinese Academy of Sciences; National Natural Science Foundation of China [41271294] ; Hundred-talent Project of the Chinese Academy of Sciences; National Natural Science Foundation of China [41271294] ; Hundred-talent Project of the Chinese Academy of Sciences; National Natural Science Foundation of China [41271294]
源URL[http://ir.iswc.ac.cn/handle/361005/7925]  
专题水保所科研产出--SCI_2017--SCI
通讯作者Dong, YT (reprint author), Chinese Acad Sci, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China.; Dong, YT (reprint author), MWR, Yangling 712100, Shaanxi, Peoples R China.; Li, ZW
作者单位1.Chinese Acad Sci, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China
2.MWR, Yangling 712100, Shaanxi, Peoples R China
3.Hunan Univ, Coll Environm Sci & Engn, Changsha 410082, Hunan, Peoples R China
4.Hunan Univ, Key Lab Environm Biol & Pollut Control, Minist Educ, Changsha 410082, Hunan, Peoples R China
5.Yellow River Conservat Commiss, Tianshui Soil & Water Conservat Stn, Tianshui 741000, Gansu, Peoples R China
推荐引用方式
GB/T 7714		 Dong, YT ,Dong, YT ,Wang, Danyang,et al. Response of sedimentary organic matter source to rainfall events using stable carbon and nitrogen isotopes in a typical loess hilly-gully catchment of China[J]. JOURNAL OF HYDROLOGY,2017,552:376-386.
APA Dong, YT .,Dong, YT .,Wang, Danyang.,Xiao, Haibing.,Liu, Lin.,...&Chang, Xiaofeng.(2017).Response of sedimentary organic matter source to rainfall events using stable carbon and nitrogen isotopes in a typical loess hilly-gully catchment of China.JOURNAL OF HYDROLOGY,552,376-386.
MLA Dong, YT ,et al."Response of sedimentary organic matter source to rainfall events using stable carbon and nitrogen isotopes in a typical loess hilly-gully catchment of China".JOURNAL OF HYDROLOGY 552(2017):376-386.

入库方式： OAI收割

来源：水土保持研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。