Sediment carbon short-term response to water carbon content change in a large floodplain-lake system
文献类型：期刊论文
| 作者 | Li, Zhaoxi1,2; Gao, Yang1,2; Jia, Junjie1,2; Sun, Kun2; Lyu, Sidan2; Wang, Shuoyue1,2; Lu, Yao1,2; Wen, Xuefa1,2 |
| 刊名 | ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
 |
| 出版日期 | 2021-02-19 |
| 页码 | 14 |
| 关键词 | Sediment carbon Hysteresis effect Poyang Lake Phytoplankton C cycle |
| ISSN号 | 0944-1344 |
| DOI | 10.1007/s11356-021-13016-3 |
| 通讯作者 | Gao, Yang(gaoyang@igsnrr.ac.cn) |
| 英文摘要 | After carbon (C) enters a lake through surface runoff and atmospheric deposition, most of it, being influenced by the environmental conditions of the basin, is deposited into lake sediment, thus, becoming one of the most important C pools in the world. Therefore, it is critical to understand sediment response characteristics under the context of increasing C concentrations in lake water. Based on the changes of sediment C concentration at different depths in Poyang Lake, belonging to China's large floodplain-lake system, we revealed the sediment C short-term response characteristics to changes in lake water C concentrations as well as their associated impacting factors. We found that dissolved total carbon (DTC) concentrations increased by 25.78% in winter compared to spring, while total carbon (TC) sediment concentrations increased by only 4.37% during the corresponding period. Specifically, we found that there was a hysteresis effect in the response of sediment C to the increase of water C concentration in the short term. When DTC concentrations in water were below a threshold value (12.50 mg/L), sediment TC concentrations were generally maintained at approximately 5.79 mg/kg. We also believed that biological and environmental factors and sediment stratification characteristics collectively resulted in this sediment C hysteresis effect. Among these factors and characteristics, phytoplankton can affect sediment C response by changing C absorption and utilization in water or cause a synergistic effect along with environmental factors, which is the key link that causes this C sediment hysteresis effect to occur. Furthermore, we found that the combined effect of sediment C from different depths also resulted in a hysteresis effect in C deposition. |
| 资助项目 | National Nature Science Foundation of China[41830860] ; National Nature Science Foundation of China[41922003] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000619737500020 |
| 出版者 | SPRINGER HEIDELBERG |
| 资助机构 | National Nature Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/160675]  |
| 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.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Zhaoxi,Gao, Yang,Jia, Junjie,et al. Sediment carbon short-term response to water carbon content change in a large floodplain-lake system[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2021:14. |
| APA | Li, Zhaoxi.,Gao, Yang.,Jia, Junjie.,Sun, Kun.,Lyu, Sidan.,...&Wen, Xuefa.(2021).Sediment carbon short-term response to water carbon content change in a large floodplain-lake system.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,14. |
| MLA | Li, Zhaoxi,et al."Sediment carbon short-term response to water carbon content change in a large floodplain-lake system".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH (2021):14. |
入库方式： OAI收割
来源：地理科学与资源研究所
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