A new pattern expanding current temperature models: A negative correlation between soil respiration and temperature in cold environments
文献类型：期刊论文
| 作者 | Zhao, Wei1,2; Yang, Meng1,2; Wang, Qiufeng1,2; Hao, Tianxiang1,2; Zhu, Jianxing1,2; Chen, Zhi1,2; Yu, Guirui1,2 |
| 刊名 | CATENA
 |
| 出版日期 | 2026 |
| 卷号 | 262页码:109653 |
| 关键词 | Soil respiration Mean annual temperature Negative correlation Van't Hoff Annual Rs Discrepancy across timescales |
| ISSN号 | 0341-8162 |
| DOI | 10.1016/j.catena.2025.109653 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | Soil respiration (Rs) is the second-largest carbon flux after gross primary productivity. Thus, assessing the relationship between Rs and temperature is essential for carbon budget assessments and climate-change predictions. A critical but unresolved question is whether current models accurately capture the Rs-temperature relationship in cold environments. We used multiscale observations from natural ecosystems across China and conducted Rs-temperature model comparisons, focusing on Rs responses under low-temperature conditions. We found that annual Rs exhibited a U-shaped relationship with mean annual temperature (MAT). Notably, unlike the positive Rs-temperature correlation in temperate regions, annual Rs was negatively correlated with temperature in cold regions (MAT < 3.75 C-degrees), primarily in the Qinghai-Tibet Plateau and Northeast Cold Temperate Zone. This unexpected inverse pattern likely stemmed from the inhibitory effect of increased soil moisture associated with rising MAT. Traditional models (Van't Hoff, Lloyd-Taylor, and Arctangent) systematically underestimated Rs in these cold regions by up to 32 %. In contrast, monthly Rs increased consistently with temperature and showed no negative correlation. This scale-dependent divergence resulted from the spatial heterogeneity in Rs responses and Jensen's inequality. Our findings enhance the understanding of Rs-temperature coupling across timescales and underscore the need for refined multiscale models to improve predictions of soil carbon fluxes under climate change. |
| URL标识 | 查看原文 |
| WOS关键词 | ORGANIC-CARBON ; CLIMATE-CHANGE ; SENSITIVITY ; RESPONSES ; MOISTURE ; WATER ; VEGETATION ; NITROGEN ; CHINA |
| WOS研究方向 | Geology ; Agriculture ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:001620204600001 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/217727]  |
| 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 | Yang, Meng; Wang, Qiufeng |
| 作者单位 | 1.Univ Chinese Acad Sci, Coll Resources & Environm, 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 | Zhao, Wei,Yang, Meng,Wang, Qiufeng,et al. A new pattern expanding current temperature models: A negative correlation between soil respiration and temperature in cold environments[J]. CATENA,2026,262:109653. |
| APA | Zhao, Wei.,Yang, Meng.,Wang, Qiufeng.,Hao, Tianxiang.,Zhu, Jianxing.,...&Yu, Guirui.(2026).A new pattern expanding current temperature models: A negative correlation between soil respiration and temperature in cold environments.CATENA,262,109653. |
| MLA | Zhao, Wei,et al."A new pattern expanding current temperature models: A negative correlation between soil respiration and temperature in cold environments".CATENA 262(2026):109653. |
入库方式： OAI收割
来源：地理科学与资源研究所
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