Hydrothermal integration and synergy regulate carbon exchange in forest ecosystems of eastern China
文献类型：期刊论文
| 作者 | Wang, Yin5; Tong, Xiaojuan5; Zhang, Jinsong3,4; Li, Jun2; Meng, Ping3,4; Wang, Weifeng1; Wang, Yating5; Yang, Mingxin5; Liu, Qingyuan5 |
| 刊名 | AGRICULTURAL AND FOREST METEOROLOGY
 |
| 出版日期 | 2026-02-15 |
| 卷号 | 377页码:110888 |
| 关键词 | Hydrothermal integration Hydrothermal synergy Soil moisture Carbon flux Forest ecosystems |
| ISSN号 | 0168-1923 |
| DOI | 10.1016/j.agrformet.2025.110888 |
| 产权排序 | 4 |
| 文献子类 | Article |
| 英文摘要 | Forest ecosystem photosynthesis is primarily driven by hydrothermal conditions. However, the effects of hydrothermal integration and synergy on carbon exchange across forest ecosystems are still not clear. We examined the divergence of carbon exchange over 16 forest ecosystems in eastern China. To explore the controls of hydrothermal change on gross primary productivity (GPP), ecosystem respiration (Re), and net ecosystem productivity (NEP), we developed two indices for hydrothermal integration (TP) and hydrothermal synergy (D) based on the copula function. Compared with traditional indices such as the water and thermal product index (K), aridity index (AI), and standardized precipitation evapotranspiration index (SPEI), TP and D demonstrated higher sensitivity and applicability in capturing seasonal and spatial variations in hydrothermal conditions. Vapor pressure deficit (VPD), soil water content (SWC), and AI responded nonlinearly to TP and D, with coordinated hydrothermal conditions enhancing SWC and uncoordinated or scarce conditions increasing drought risk. TP and D explained over 80% of the variability in GPP, Re, and NEP, which better captured hydrothermal controls on carbon exchange than temperature and precipitation alone. Carbon fluxes peaked at TP approximate to 1 and D slightly above 0, indicating that moderately water-dominated hydrothermal synergy provided optimal conditions for photosynthesis and respiration. Random forest analysis revealed that SWC was the primary driver of GPP, Re, and NEP, followed by D for GPP and NEP, indicating that forest carbon exchange is mainly regulated by soil water availability and atmospheric hydrothermal synergy. This study clarifies how hydrothermal conditions impact on carbon exchange in forest ecosystems and provides insights into assessing forest responses to climate change. |
| URL标识 | 查看原文 |
| WOS关键词 | SOIL-MOISTURE ; AIR-TEMPERATURE ; RAIN-FOREST ; PRECIPITATION ; WATER ; RESPONSES ; NET ; RESPIRATION ; DROUGHT ; BALANCE |
| WOS研究方向 | Agriculture ; Forestry ; Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:001630515900003 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/219396]  |
| 专题 | 陆地水循环及地表过程院重点实验室_外文论文 |
| 通讯作者 | Tong, Xiaojuan |
| 作者单位 | 1.Nanjing Forestry Univ, Coll Ecol & Environm, Nanjing 210037, Peoples R China 2.Chinese Acad Sci, Key Lab Water Cycle & Related Land Surface Proc, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China; 3.Henan Xiaolangdi Forest Ecosyst Natl Observat & Re, Jiyuan 454650, Peoples R China; 4.Chinese Acad Forestry, Key Lab Tree Breeding & Cultivat State Forestry Ad, Res Inst Forestry, Beijing 100091, Peoples R China; 5.Beijing Forestry Univ, Sch Ecol & Nat Conservat, Beijing 100083, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Wang, Yin,Tong, Xiaojuan,Zhang, Jinsong,et al. Hydrothermal integration and synergy regulate carbon exchange in forest ecosystems of eastern China[J]. AGRICULTURAL AND FOREST METEOROLOGY,2026,377:110888. |
| APA | Wang, Yin.,Tong, Xiaojuan.,Zhang, Jinsong.,Li, Jun.,Meng, Ping.,...&Liu, Qingyuan.(2026).Hydrothermal integration and synergy regulate carbon exchange in forest ecosystems of eastern China.AGRICULTURAL AND FOREST METEOROLOGY,377,110888. |
| MLA | Wang, Yin,et al."Hydrothermal integration and synergy regulate carbon exchange in forest ecosystems of eastern China".AGRICULTURAL AND FOREST METEOROLOGY 377(2026):110888. |
入库方式： OAI收割
来源：地理科学与资源研究所
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