Rainfall driven transport of carbon and nitrogen along karst slopes and associative interaction characteristic
文献类型：期刊论文
| 作者 | Song, Xianwei1,2; Gao, Yang1,2; Green, Sophie M.3; Wen, Xuefa1,2; Dungait, Jennifer A. J.4; Xiong, Bailian5; Quine, Timothy A.3; He, Nianpeng1,2 |
| 刊名 | JOURNAL OF HYDROLOGY
 |
| 出版日期 | 2019-06-01 |
| 卷号 | 573页码:246-254 |
| 关键词 | Dissolved carbon Nitrogen Transport Simulated rainfall Karst |
| ISSN号 | 0022-1694 |
| DOI | 10.1016/j.jhydrol.2019.03.083 |
| 通讯作者 | Gao, Yang(gaoyang@igsnrr.ac.cn) |
| 英文摘要 | Transportation of carbon and nitrogen during rainfall events is highly important within karst ecosystems and has particular relevance to understand decoupling relation between carbon and nitrogen cycles. The ability of the karst ecosystem to sequester carbon is currently unknown but has potential to be an important residual terrestrial carbon sink. We hypothesis that the runoff response to rainfall events will vary according to whether the slope belongs to karst area, and carbon and nitrogen have imbalanced outputs response to runoff. Hence, a series of in-situ simulated rainfall experiments at three sites (two karst slopes with different carbonate matrixes and one non-karst slope without a carbonate matrix) were conducted in a typical karst zone in southwest China. We measured runoff discharge, and dissolved carbon and nitrogen during the experiments. The results show that the total runoff discharge increased positively with rainfall intensity, with the carbonate matrix making an important contribution to rainfall reallocation. The dissolved carbon loss from runoff plots is much higher than the dissolved nitrogen, with the dissolved C/N revealing the decoupling relation of carbon and nitrogen cycles in this critical karst zone. This initial carbon migrated by runoff at catchment scale is critical to carbon budgets in rivers. Furthermore, nitrogen leaching from the system is crucial as a nitrogen shortage at karst area in southwest China. |
| WOS关键词 | SOUTHWESTERN CHINA ; ACID-RAIN ; SOIL CO2 ; WATER ; RIVER ; AREA ; SINK ; SEQUESTRATION ; SIMULATION ; DEPOSITION |
| 资助项目 | Natural Science Foundation of China[41571130043] ; Natural Science Foundation of China[41871080] ; Youth Innovation Promotion Association CAS |
| WOS研究方向 | Engineering ; Geology ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000474327800019 |
| 出版者 | ELSEVIER SCIENCE BV |
| 资助机构 | Natural Science Foundation of China ; Youth Innovation Promotion Association CAS |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/58504]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Gao, Yang |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100190, Peoples R China 3.Univ Exeter, Geog, Amory Bldg,Rennes Dr, Exeter EX4 4RJ, Devon, England 4.Rothamsted Res, Dept Sustainable Soils & Grassland Syst, North Wyke EX20 2SB, Okehampton, England 5.Zunyi Normal Coll, Coll Resources & Environm, Zunyi, Guizhou, Peoples R China |
| 推荐引用方式 GB/T 7714 | Song, Xianwei,Gao, Yang,Green, Sophie M.,et al. Rainfall driven transport of carbon and nitrogen along karst slopes and associative interaction characteristic[J]. JOURNAL OF HYDROLOGY,2019,573:246-254. |
| APA | Song, Xianwei.,Gao, Yang.,Green, Sophie M..,Wen, Xuefa.,Dungait, Jennifer A. J..,...&He, Nianpeng.(2019).Rainfall driven transport of carbon and nitrogen along karst slopes and associative interaction characteristic.JOURNAL OF HYDROLOGY,573,246-254. |
| MLA | Song, Xianwei,et al."Rainfall driven transport of carbon and nitrogen along karst slopes and associative interaction characteristic".JOURNAL OF HYDROLOGY 573(2019):246-254. |
入库方式： OAI收割
来源：地理科学与资源研究所
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