Agricultural and Forest Meteorology最新文献

{"title":"\"Multi-scale climate analysis of two coastal wine terroirs in Uruguay: Adapting to climate change and heatwaves\"","authors":"Ramiro Tachini ,&nbsp;Valérie Bonnardot ,&nbsp;Hervé Quénol ,&nbsp;Mercedes Fourment","doi":"10.1016/j.agrformet.2025.111000","DOIUrl":"10.1016/j.agrformet.2025.111000","url":null,"abstract":"<div><div>Climate change is intensifying extreme heat events, posing significant challenges to grapevine production. While global adaptation strategies often emphasize relocation to cooler regions, Uruguay offers limited spatial flexibility for vineyard relocation. This study evaluates the climatic characteristics of two coastal wine-growing terroirs situated at similar latitudes but differing in proximity to the Atlantic Ocean. Macroclimatic, mesoclimatic, and microclimatic conditions were assessed using data from meteorological stations and in-vineyard sensors, incorporating different phases of the El Niño Southern Oscillation (ENSO). The results indicate that the oceanic region is cooler and wetter than the traditional inland region, where precipitation variability is modulated by ENSO. La Niña events were associated with drier conditions, while El Niño phases corresponded with increased precipitation. During the 2022–2023 growing season (La Niña), both regions recorded their highest maximum temperatures on record; however, the increase above average in Growing Season Temperature was 1.5 °C lower at the oceanic site. Over the past 50 years, both regions showed upward trends in days exceeding 30 °C, without significant trends in cumulative seasonal precipitation. Nonetheless, precipitation tended to decrease during La Niña and increase during El Niño phases. At the mesoscale, topography and ocean exposure contributed to pronounced spatial variability in thermal indicators. Within the oceanic region, variations in minimum temperatures were observed, while differences in maximum temperature indicators were pronounced between regions (sea breezes at the oceanic site reduced heatwave temperatures by up to 8 °C). At the microscale, differences were explained by interactions between canopy development and the climatic conditions of the growing season. This study underscores the importance of downscaling from regional to intra-canopy levels to better understand and manage climatic variability. The ocean's moderating influence emerges as a valuable asset for sustainable viticulture in Uruguay, reinforcing the need for multi-scale terroir assessment to update climate adaptation strategies in viticulture.</div></div>","PeriodicalId":50839,"journal":{"name":"Agricultural and Forest Meteorology","volume":"378 ","pages":"Article 111000"},"PeriodicalIF":5.7,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145823792","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The role of thermal constraints in post-disturbance forest recovery across the European Alps – a large-scale remote sensing study","authors":"Lisa Mandl ,&nbsp;Ana Stritih ,&nbsp;Rupert Seidl ,&nbsp;Cornelius Senf","doi":"10.1016/j.agrformet.2026.111016","DOIUrl":"10.1016/j.agrformet.2026.111016","url":null,"abstract":"<div><div>Forest ecosystems in the European Alps are increasingly affected by climate change, with rising temperatures and more frequent climate extremes altering disturbance regimes and shaping post-disturbance recovery. While climate change is expected to constrain recovery in lowlands due to increasing thermal stress, high-elevation ecosystems were historically limited by temperature, with the net effects of warming on post-disturbance recovery remaining uncertain. Using multi-decadal Earth observation data from Landsat and Sentinel-2 (1986–2023), we quantified post-disturbance canopy recovery and assessed the influence of thermal constraints on recovery. Recovery success, defined as the proportion of disturbed forest reaching 80 % of pre-disturbance tree cover within ten years, indicated that 48 % of disturbances recovered according to this metric. Beyond this general pattern, recovery varied systematically with climate and disturbance characteristics. Recovery success peaked at intermediate summer temperatures and declined with increasing disturbance severity, higher pre-disturbance tree cover, and larger post-disturbance bare-ground share. Precipitation exerted only a minor influence. We found strong evidence that warmer-than-average summers, measured as summer temperature anomalies, improved recovery across the Alps, except for localized responses in the south-western region. Our findings suggest that warming relaxes the thermal limitations for tree growth in large parts of the Alps, with warmer summers providing additional thermal energy and longer snow-free periods favouring canopy regrowth. Notably, the south-western Alps deviated from this pattern, showing a negative relationship between summer temperature anomalies and recovery, with warming increasingly threatening recovery. By providing large-scale empirical evidence on how post-disturbance recovery varies across the Alps, this study improves the understanding of interactions between climate change and forest recovery.</div></div>","PeriodicalId":50839,"journal":{"name":"Agricultural and Forest Meteorology","volume":"378 ","pages":"Article 111016"},"PeriodicalIF":5.7,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145925380","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Multi-year water and carbon flux contrasts between high-yielding and conventional rice cultivars","authors":"Keisuke Ono ,&nbsp;Hiroki Ikawa ,&nbsp;Akira Miyata","doi":"10.1016/j.agrformet.2025.110983","DOIUrl":"10.1016/j.agrformet.2025.110983","url":null,"abstract":"<div><div>Cultivation of high-yielding indica rice varieties has been spreading in Japan. This trend raises concerns about their potential impacts on water use and the carbon cycle. To this end, eddy covariance flux measurements were conducted from transplanting to harvest over three years for a high-yielding rice variety, Oonari, and compared with a conventional japonica rice variety, Koshihikari, in farmers’ fields under actual management practices. Evapotranspiration (ET) was higher for Oonari in 2018 and 2019, being 9.6 % higher than Koshihikari (2018: Oonari, 549.6 mm; Koshihikari, 501.2 mm; 2019: Oonari, 472.0 mm; Koshihikari, 430.5 mm). In 2020, ET for Oonari was 6.0 % smaller due to a shorter growth period (Oonari, 426.5 mm; Koshihikari, 453.9 mm). Gross primary production (GPP) was significantly higher for Oonari, averaging 24 % more than Koshihikari (Oonari: 1175.2±76.5 g C m^–2, Koshihikari: 946.5±32.7 g C m^–2). Higher ET and GPP of Oonari were reflected in greater crop coefficients and radiation use efficiency. These characteristics are mainly due to Oonari's higher leaf area index and extended photosynthetic period, highlighting the importance of field-scale evaluations throughout the entire growth period. Although both ET and GPP were greater in Oonari than in Koshihikari, the more pronounced difference in GPP indicates that cultivating Oonari has a greater impact on the carbon cycle than on water use.</div></div>","PeriodicalId":50839,"journal":{"name":"Agricultural and Forest Meteorology","volume":"378 ","pages":"Article 110983"},"PeriodicalIF":5.7,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145785325","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hydrothermal integration and synergy regulate carbon exchange in forest ecosystems of eastern China","authors":"Yin Wang ,&nbsp;Xiaojuan Tong ,&nbsp;Jinsong Zhang ,&nbsp;Jun Li ,&nbsp;Ping Meng ,&nbsp;Weifeng Wang ,&nbsp;Yating Wang ,&nbsp;Mingxin Yang ,&nbsp;Qingyuan Liu","doi":"10.1016/j.agrformet.2025.110888","DOIUrl":"10.1016/j.agrformet.2025.110888","url":null,"abstract":"<div><div>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 (<em>R</em>e), 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, <em>R</em>e, and NEP, which better captured hydrothermal controls on carbon exchange than temperature and precipitation alone. Carbon fluxes peaked at TP ≈ 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, <em>R</em>e, 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.</div></div>","PeriodicalId":50839,"journal":{"name":"Agricultural and Forest Meteorology","volume":"377 ","pages":"Article 110888"},"PeriodicalIF":5.7,"publicationDate":"2026-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145593689","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Co-regulation of water use and canopy temperature in desert trees","authors":"Bryn E. Morgan ,&nbsp;Anna T. Trugman ,&nbsp;Kelly K. Caylor","doi":"10.1016/j.agrformet.2025.110929","DOIUrl":"10.1016/j.agrformet.2025.110929","url":null,"abstract":"<div><div>Plants employ a range of water-use strategies to withstand limitations in water supply and increases in atmospheric demand. At the same time, water-use strategies alter canopy energy balance, leading to changes in canopy temperature that can impact photosynthesis, creating distinct tradeoffs between water and temperature regulation. However, the extent of these tradeoffs is a key uncertainty in understanding plant responses to hydroclimatic stress. Here, we use a unique dataset of near-surface remotely sensed retrievals of canopy conductance, transpiration, and temperature to assess how desert trees co-regulate their water status and temperature. We leverage a moisture gradient and seasonality in temperature to evaluate species-specific plant responses to both isolated (cool, dry and hot, wet) and combined (hot, dry) water and temperature stress and compare them to reference (cool, wet) conditions. We find that species exhibit different water-use strategies in response to supply- and demand-driven water stress, but exhibit similar responses to thermal stress. Under most conditions, plants face tradeoffs between hydraulic function and avoiding thermal stress. However, when both supply and demand are high, water and canopy temperature regulation can become decoupled. Altogether, our findings reveal two unexpected plant behaviors that may be particularly vulnerable to climate change.</div></div>","PeriodicalId":50839,"journal":{"name":"Agricultural and Forest Meteorology","volume":"377 ","pages":"Article 110929"},"PeriodicalIF":5.7,"publicationDate":"2026-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145537206","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Understanding forest wind damage during mountain wave events: Insights from a case study in Norway","authors":"Peter Zubkov ,&nbsp;Harold McInnes ,&nbsp;Eirik Mikal Samuelsen ,&nbsp;Kristina Blennow","doi":"10.1016/j.agrformet.2025.110951","DOIUrl":"10.1016/j.agrformet.2025.110951","url":null,"abstract":"<div><div>Forest wind damage models are typically based on the assumption that windstorm damage results from the interaction between horizontal wind forces and forest stand properties. In complex terrain, mountain waves caused by stably stratified air flowing over mountains can generate standing waves and severe downslope windstorms on the leeward side. Using the windstorm of 19 November 2021 in a mountain valley in southeastern Norway as a case study, we tested two hypotheses:</div><div>1. Forest stand properties do not significantly contribute to explaining forest damage during a mountain wave event.</div><div>2. Meteorological variables related to atmospheric stratification, turbulence, and non-horizontal airflow significantly contribute to explaining forest damage during a mountain wave event.</div><div>To test these hypotheses, we combined forest damage observations with a high-resolution numerical weather prediction model and Random Forest modeling. We used SHapley Additive exPlanations (SHAP) values to quantify the contributions of individual model features. Incorporating forest stand variables did not significantly improve predictive performance, whereas potential temperature gradient, vertical airflow velocity, and wind gust speed, capturing turbulence, did. SHAP analysis showed that although wind gust speed helped explain damage, its influence was secondary to that of potential temperature gradient, which had the strongest explanatory power. The model demonstrated good discriminative power between damage and no damage in the test set. Our findings underscore the limitations of conventional models reliant on horizontal wind speed, highlighting the need for high-resolution numerical weather prediction models that resolve three-dimensional flow in complex terrain, especially during mountain wave events.</div></div>","PeriodicalId":50839,"journal":{"name":"Agricultural and Forest Meteorology","volume":"377 ","pages":"Article 110951"},"PeriodicalIF":5.7,"publicationDate":"2026-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145583494","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Delayed senescence end prolongs leaf senescence duration in temperate China","authors":"Yutian Lu ,&nbsp;Lijuan Miao ,&nbsp;Evgenios Agathokleous ,&nbsp;Guojie Wang ,&nbsp;Dong Wang ,&nbsp;Hanyang Jiang ,&nbsp;Xiaowei Chuai ,&nbsp;Qiang Liu","doi":"10.1016/j.agrformet.2025.110938","DOIUrl":"10.1016/j.agrformet.2025.110938","url":null,"abstract":"<div><div>Vegetation leaf senescence serves as a pivotal biogeochemical process regulating carbon, water, and energy exchanges between terrestrial ecosystems and the atmosphere. Despite considerable research attention on the end of leaf senescence (T_LSD), its onset (T_LSO) and duration (D_LS) remain poorly understood, limiting our ability to predict autumn phenological dynamics. Here, using four phenological extraction methods, we analyzed the trends in T_LSO, T_LSD, and D_LS across temperate China from 2001 to 2023, along with their climatic and physiological drivers. Our results revealed widespread delays in T_LSD (0.32 ± 0.13 days/year) and T_LSO (0.10 ± 0.16 days/year), leading to a prolonged D_LS (0.21 ± 0.17 days/year). Notably, D_LS variations were predominantly controlled by shifts in T_LSD rather than T_LSO, except in water-limited grasslands and cold-adapted deciduous needleleaf forests. Our analysis revealed that T_LSD showed stronger climate sensitivity than T_LSO, with temperature as the dominant control. Most remarkably, we uncovered a persistent, intrinsic relationship wherein T_LSO constrains T_LSD, independent of external climatic influences. These results suggest that existing climate-driven phenology models likely underestimate autumn phenological responses by neglecting these intrinsic plant physiological controls. Our study highlights the necessities to integrate both internal regulatory mechanisms (particularly T_LSO-T_LSD linkages) and external environmental drivers to achieve more accurate predictions of vegetation responses to ongoing climate change.</div></div>","PeriodicalId":50839,"journal":{"name":"Agricultural and Forest Meteorology","volume":"377 ","pages":"Article 110938"},"PeriodicalIF":5.7,"publicationDate":"2026-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145598744","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Climate warming, rather than nitrogen deposition, reduces plant diversity and increases community homogenization in a desert steppe","authors":"Yi Zhu ,&nbsp;Guodong Han ,&nbsp;Loïc Pellissier ,&nbsp;Mai-He Li ,&nbsp;Lin Jiang ,&nbsp;Jinglei Tang ,&nbsp;Cuiping Gao ,&nbsp;Haiyan Ren","doi":"10.1016/j.agrformet.2025.110937","DOIUrl":"10.1016/j.agrformet.2025.110937","url":null,"abstract":"<div><div>It is still unclear how increasing nitrogen (N) deposition, climate warming, and their interaction affect biotic impoverishment (decreases in α-diversity) and homogenization (decreases in β-diversity) of plant communities at taxonomic, functional, and phylogenetic levels. To address this, we conducted a long-term (17-year) field experiment in Inner Mongolia's temperate desert steppe to investigate the effects of warming and nitrogen deposition on plant taxonomic, functional, and phylogenetic α- and β-diversity. Over this period (2006–2022), warming (mean annual temperature + 1.4 °C) significantly decreased species richness and functional α-diversity throughout the experiment, whereas its effects on phylogenetic α-diversity and community phylogenetic structure were significant only before 2015 and disappeared thereafter, likely due to an extreme drought that reset the community composition. In contrast, β-diversity steadily declined over the entire period. These dynamics led to a shift in the community phylogenetic structure from overdispersion towards randomness during the first 10 years. Nitrogen addition (10 g m² yr^-1) had no significant impact on diversity at the functional and phylogenetic levels but increased β-diversity at the taxonomic level. Our findings reveal that relatively rare species were more likely to go extinct, while species with higher leaf nitrogen concentrations were more prone to colonization, and these patterns were observed across all treatments. These findings suggest that warming can contribute to biotic impoverishment and homogenization by causing the extinction of species distantly related to the resident community.</div></div>","PeriodicalId":50839,"journal":{"name":"Agricultural and Forest Meteorology","volume":"377 ","pages":"Article 110937"},"PeriodicalIF":5.7,"publicationDate":"2026-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145598740","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The impact of compound droughts and heatwaves on ecosystem carbon-water dynamics in Eurasia","authors":"Mingjuan Xie ,&nbsp;Geping Luo ,&nbsp;Amaury Frankl ,&nbsp;Philippe De Maeyer ,&nbsp;Olaf Hellwich ,&nbsp;Kwinten Van Weverberg","doi":"10.1016/j.agrformet.2025.110936","DOIUrl":"10.1016/j.agrformet.2025.110936","url":null,"abstract":"<div><div>Climate change has been intensifying the occurrence of compound droughts and heatwaves (CDHW), seriously affecting the carbon and water cycles of terrestrial ecosystems. However, the understanding of the impacts of CDHW is still limited in Eurasia, with its complex terrain and diverse landscapes. This study used a high-precision carbon and water flux dataset from meteorological stations to examine the spatiotemporal patterns of CDHW in Eurasia during 1984−2018 and their effects on ecosystem carbon-water dynamics across various land cover types, in particular net ecosystem carbon exchange (NEE) and water fluxes (WF). The findings revealed a marked increase in CDHW frequency since 1984. Standardized anomalies for heatwaves seemed to be more severe than for droughts but the latter exhibited a greater spatial variability. CDHW generally demonstrated a negative impact on NEE and WF, with the magnitude of net carbon uptake decreases growing and the magnitude of WF increases diminishing since 1984. The grassland experienced the largest reduction in net carbon uptake, with a mean standardized anomaly (SA) of 0.53 for NEE, while the forest appeared to be the least affected. The wetland indicated the most pronounced WF response to CDHW, with a mean SA of 0.93, followed by the forest. Geographically, the effects of CDHW on NEE and WF varied along latitudes, with the strongest negative influences occurring in high-latitude regions. After CDHW, the average recovery times for most stations ranged from three to ten days, with the forest and shrubland illustrating the greatest resilience in NEE and WF, respectively. Understanding these dynamics is critical for designing targeted adaptation strategies—such as forest protection and afforestation to enhance ecosystem resistance, and precision irrigation to alleviate water stress—to mitigate the CDHW impact and sustain the ecosystem functions amidst the rising climatic extremes.</div></div>","PeriodicalId":50839,"journal":{"name":"Agricultural and Forest Meteorology","volume":"377 ","pages":"Article 110936"},"PeriodicalIF":5.7,"publicationDate":"2026-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145553530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Climate warming and forest expansion significantly enhance China’s forest methane sink","authors":"Youbin Deng ,&nbsp;Mingxu Li ,&nbsp;Xiaoyan Kang ,&nbsp;Li Xu ,&nbsp;Boming Liang ,&nbsp;Jiankun Chen ,&nbsp;Lingli Yu ,&nbsp;Xuanbo Wang ,&nbsp;Xuyang Zhang ,&nbsp;Mengze Qin ,&nbsp;Changhui Peng ,&nbsp;Nianpeng He","doi":"10.1016/j.agrformet.2025.110935","DOIUrl":"10.1016/j.agrformet.2025.110935","url":null,"abstract":"<div><div>Forests are the largest biogenic methane sink, and an accurate assessment of their methane uptake capacity is essential for achieving greenhouse gas emission reduction targets and methane source/sink management. However, large uncertainties remain in most assessments of forest methane sinks owing to scarce observational data and unclear driving mechanisms. In this study, using a database of in situ forest methane fluxes and the random forest method, we studied the spatiotemporal dynamics of methane uptake fluxes in China’s forests and their driving mechanisms. The annual methane uptake flux and total sink in China’s forests were 287.1 (272.2 to 301.8) mg CH₄ m^-2 yr^-1 and 0.47 (0.44 to 0.49) Tg CH₄ yr^-1, respectively, and were a net sink of methane. From 1982–2020, both the methane uptake flux and total sink in China’s forests showed a significant upward trend. Further analysis indicated that increasing temperature and decreasing soil moisture were the main factors responsible for the elevated methane uptake fluxes in forests in China, while the rapid expansion of forest area nearly dominated the increase in China’s total forest methane sinks over the 39-year period. In addition to the spatio-temporal assessment of methane uptake and knowledge of the potential driving mechanisms, this study highlights the positive contribution of climate warming-drying and afforestation to methane sink enhancement.</div></div>","PeriodicalId":50839,"journal":{"name":"Agricultural and Forest Meteorology","volume":"377 ","pages":"Article 110935"},"PeriodicalIF":5.7,"publicationDate":"2026-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145537205","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}