Climate Warming and Soil Drying Lead to a Reduction of Riverine Dissolved Organic Carbon in China
文献类型：期刊论文
| 作者 | Yu, Lingli1; Li, Mingxu5,6,7; Kang, Xiaoyan6,7; Xu, Li7; Liang, Boming3; Chen, Jiankun3; Deng, Youbin1; Chen, Huai2; He, Nianpeng1,4 |
| 刊名 | GLOBAL BIOGEOCHEMICAL CYCLES
 |
| 出版日期 | 2025-08-28 |
| 卷号 | 39期号:9页码:e2025GB008665 |
| 关键词 | DISSOLVED organic carbon Chinese river spatial variability temporal variability concentration |
| ISSN号 | 0886-6236 |
| DOI | 10.1029/2025GB008665 |
| 产权排序 | 2 |
| 文献子类 | Article |
| 英文摘要 | Dissolved organic carbon (DOC) is a dynamic component of riverine carbon pools that plays a vital role in determining regional carbon balance. However, owing to limitations in observational data and methodologies, the spatiotemporal dynamics of riverine DOC at a regional scale and their underlying driving factors remain poorly understood. In this study, we compiled riverine DOC concentration measurements for China, using which we analyzed the spatial and temporal patterns of DOC concentrations from 1982 to 2020, and examined the potential driving factors, including climate, vegetation, soil, and hydrology. The results revealed that the average annual DOC concentration in Chinese rivers for the assessed period was 4.06 mg L-1, with the highest concentrations found in Northeast China (i.e., the Songliao River). We also found that there had been a significant reduction in annual DOC concentrations in Chinese rivers from 1982 to 2020, associated with significant declines in DOC in spring and summer. Further analyses revealed that these reductions in DOC concentrations could mainly be attributed to the synergistic effect of climate warming and soil drying. In addition, the total flux of DOC from major rivers in China and the average DOC yield were estimated at 8.15 Tg yr-1 and 1.16 g m2 yr-1, respectively. Our findings in this study provide foundational data support for the accurate assessment of regional carbon budgets and offer theoretical insights for developing a regional land-ocean-aquatic continuum (LOAC) carbon cycling model for China. |
| URL标识 | 查看原文 |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:001559228700001 |
| 出版者 | AMER GEOPHYSICAL UNION |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/216175]  |
| 专题 | 生态系统网络观测与模拟院重点实验室_外文论文 |
| 通讯作者 | Li, Mingxu |
| 作者单位 | 1.Northeast Forestry Univ, Inst Carbon Neutral, Harbin, Peoples R China; 2.Chinese Acad Sci, Chengdu Inst Biol, Chengdu, Peoples R China; 3.Gansu Agr Univ, Coll Grassland Sci, Key Lab Grassland Ecosyst, Minist Educ, Lanzhou, Peoples R China; 4.Northeast Forestry Univ, Key Lab Sustainable Forest Ecosyst Management, Minist Educ, Harbin, Peoples R China 5.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China; 6.Chinese Acad Sci, Earth Crit Zone & Flux Res Stn Xingan Mt, Daxinganling, Peoples R China; 7.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Yu, Lingli,Li, Mingxu,Kang, Xiaoyan,et al. Climate Warming and Soil Drying Lead to a Reduction of Riverine Dissolved Organic Carbon in China[J]. GLOBAL BIOGEOCHEMICAL CYCLES,2025,39(9):e2025GB008665. |
| APA | Yu, Lingli.,Li, Mingxu.,Kang, Xiaoyan.,Xu, Li.,Liang, Boming.,...&He, Nianpeng.(2025).Climate Warming and Soil Drying Lead to a Reduction of Riverine Dissolved Organic Carbon in China.GLOBAL BIOGEOCHEMICAL CYCLES,39(9),e2025GB008665. |
| MLA | Yu, Lingli,et al."Climate Warming and Soil Drying Lead to a Reduction of Riverine Dissolved Organic Carbon in China".GLOBAL BIOGEOCHEMICAL CYCLES 39.9(2025):e2025GB008665. |
入库方式： OAI收割
来源：地理科学与资源研究所
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