How Carbon Footprint Responds to Water Circulation Rates and Availability at Different Timescales in a Subtropical Forest Ecosystem
文献类型：期刊论文
| 作者 | Lu, Yao1,2; Gao, Yang1,2; Sun, Kun1,2; Lyu, Sidan1; Wen, Xuefa1,2; Jia, Junjie1,2; Li, Zhaoxi1,2; Wang, Shuoyue1,2 |
| 刊名 | ACS EARTH AND SPACE CHEMISTRY
 |
| 出版日期 | 2021-01-21 |
| 卷号 | 5期号:1页码:77-87 |
| 关键词 | water cycle rate NPP C exchange subtropical watershed coupled carbon-nitrogen cycle |
| ISSN号 | 2472-3452 |
| DOI | 10.1021/acsearthspacechem.0c00289 |
| 通讯作者 | Gao, Yang(gaoyang@igsnrr.ac.cn) |
| 英文摘要 | In the subtropics, the influence of water on the net ecosystem carbon exchange (NEE) is critical, subsequently determining net primary productivity (NPP). Water also contributes the majority of interannual variability in atmospheric carbon dioxide (CO2) concentrations in the subtropics and helps to mitigate climate change. Using the technology of vorticity correlation, this study continuously monitored NEE, ecosystem respiration (RE), and the gross ecosystem exchange (GEE) of a small subtropical watershed in the middle and lower reaches of the Yangtze River from 2014 to 2017. Water parameters were concurrently monitored, such as rainfall (RF), runoff (RO), evapotranspiration (ET), vapor-pressure deficit (VPD), and soil water content (SWC). Results showed that an increase in the water circulation rate and water availability will promote an increase in GEE, RE, and NEE on both hourly and daily timescales, but will inhibit these carbon (C) exchanges on an annual timescale. For years that experience low annual rainfall but increased continuous rainfall, a decrease in ET may inhibit plant respiration, thus enabling subtropical forest ecosystems to fix more C. Additionally, more intense and irregular rainfall patterns caused by climate change may weaken the overall C sequestration capacity of subtropical forest ecosystems. Results from this study are intended to help us better understand coupled C and water cycling mechanisms within terrestrial ecosystems, while also providing a reference to assess the impact of climate change on ecosystem C cycling processes. |
| WOS关键词 | INTERANNUAL VARIABILITY ; SEMIARID ECOSYSTEMS ; DIOXIDE EXCHANGE ; CO2 ; STOICHIOMETRY ; PRECIPITATION ; PLANTATION ; VEGETATION ; CYCLE ; SINK |
| 资助项目 | National Nature Science Foundation of China[31988102] ; National Nature Science Foundation of China[41830860] ; National Nature Science Foundation of China[41922003] |
| WOS研究方向 | Chemistry ; Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000613199500008 |
| 出版者 | AMER CHEMICAL SOC |
| 资助机构 | National Nature Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/160619]  |
| 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, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lu, Yao,Gao, Yang,Sun, Kun,et al. How Carbon Footprint Responds to Water Circulation Rates and Availability at Different Timescales in a Subtropical Forest Ecosystem[J]. ACS EARTH AND SPACE CHEMISTRY,2021,5(1):77-87. |
| APA | Lu, Yao.,Gao, Yang.,Sun, Kun.,Lyu, Sidan.,Wen, Xuefa.,...&Wang, Shuoyue.(2021).How Carbon Footprint Responds to Water Circulation Rates and Availability at Different Timescales in a Subtropical Forest Ecosystem.ACS EARTH AND SPACE CHEMISTRY,5(1),77-87. |
| MLA | Lu, Yao,et al."How Carbon Footprint Responds to Water Circulation Rates and Availability at Different Timescales in a Subtropical Forest Ecosystem".ACS EARTH AND SPACE CHEMISTRY 5.1(2021):77-87. |
入库方式： OAI收割
来源：地理科学与资源研究所
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。