Communications Earth & Environment最新文献_第5页

Increased contributions of climate-driven wildfires to nitrogen deposition in the United States. 在美国，气候驱动的野火对氮沉积的贡献增加。

IF 9.3 1区地球科学

Communications Earth & Environment Pub Date : 2026-01-01 Epub Date: 2026-02-11 DOI: 10.1038/s43247-026-03279-4

Patrick C Campbell, Daniel Q Tong, Shinkuang Chang, Siqi Ma, Yunyao Li, Jiaxin Ding, Rick Saylor, Barry Baker, Youhua Tang, John Walker

{"title":"Increased contributions of climate-driven wildfires to nitrogen deposition in the United States.","authors":"Patrick C Campbell, Daniel Q Tong, Shinkuang Chang, Siqi Ma, Yunyao Li, Jiaxin Ding, Rick Saylor, Barry Baker, Youhua Tang, John Walker","doi":"10.1038/s43247-026-03279-4","DOIUrl":"10.1038/s43247-026-03279-4","url":null,"abstract":"Climate change and increases in the frequency and severity of climate-driven wildfires, particularly in the western United States, has serious ramifications for enhanced downwind reactive nitrogen (Nr) emissions, deposition, and critical load exceedances. Here we present a multi-decadal (2002 - 2021), harmonized model-data-driven study using the George Mason University North American Chemical Reanalysis (NACR) system and simulations including both \"with-fire\" and \"without-fire\" conditions to quantify the change in trends of fire activity and source contributions to total Nr emissions and deposition over the U.S. Our results show that fire activity has increased substantially in the western U.S., especially in the west-northwest U.S. for wildfires, and that this increase is associated with positive annual near-surface temperature and vapor pressure deficit anomalies compared to the period average. Major results and implications of this work are increasing trends in the contribution of climate-driven wildfires to higher Nr emissions, deposition, and critical load exceedances of up to 20-40% due to fires in the western U.S. There are also smaller increases (<5 %) in Nr deposition trends for the eastern U.S., which are related to greater occurrence and reporting of agricultural and prescribed burns.","PeriodicalId":10530,"journal":{"name":"Communications Earth & Environment","volume":"7 1","pages":"254"},"PeriodicalIF":9.3,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13002464/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147497639","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Wetlands set the pace of annual runoff in the northern Great Plains. 湿地决定了大平原北部每年径流的速度。

IF 9.3 1区地球科学

Communications Earth & Environment Pub Date : 2026-01-01 Epub Date: 2026-03-11 DOI: 10.1038/s43247-026-03318-0

Javad Rahmani, Irena F Creed, Pascal Badiou, Ali A Ameli

{"title":"Wetlands set the pace of annual runoff in the northern Great Plains.","authors":"Javad Rahmani, Irena F Creed, Pascal Badiou, Ali A Ameli","doi":"10.1038/s43247-026-03318-0","DOIUrl":"10.1038/s43247-026-03318-0","url":null,"abstract":"Interannual variability in the runoff ratio-how much annual precipitation becomes streamflow-underpins water management, flood forecasting, and biogeochemical fluxes. In most hydrologic frameworks, this variability is attributed primarily to year-to-year climate drivers. Here, we show that in North America's wetland-rich Prairie Pothole Region, wetlands play the dominant proximate role. Using 38 years of satellite-based inundation maps and hydroclimate data from 109 catchments, we find that annual wetland inundation extent explains interannual runoff and high-flow variability more strongly than any annual or intra-annual climate index in 69% of catchments. Climate, especially snow persistence, affects wetland inundation extent, but wetland inundation exerts a stronger net control on runoff and ultimately sets the pace of annual runoff through fill-spill hydrology. Catchments exhibit wetland inundation-runoff relationships ranging from linear to strongly threshold-like, with threshold-like behavior predominant-particularly where Geographically Isolated Wetlands are abundant. These findings reveal wetlands as active regulators of ecosystem water balance and provide a landscape-explicit basis for forecasting, conservation, and adaptive water management across the region.","PeriodicalId":10530,"journal":{"name":"Communications Earth & Environment","volume":"7 1","pages":"368"},"PeriodicalIF":9.3,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13111149/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147764824","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Characterizing the vertical structure of forests in the Brazilian Amazon. 描述巴西亚马逊森林的垂直结构。

IF 8.9 1区地球科学

Communications Earth & Environment Pub Date : 2026-01-01 Epub Date: 2025-12-11 DOI: 10.1038/s43247-025-02976-w

Denis Valle, Leo Haneda, Ismael Verrastro Brack, Jean Ometto, Ovidiu Csillik, Marcos Longo, Michael Keller, Danilo Almeida

引用次数: 0

Minimal impact of recent decline in C₄ vegetation abundance on atmospheric carbon isotopic composition. 近期C4植被丰度下降对大气碳同位素组成的影响极小。

IF 8.9 1区地球科学

Communications Earth & Environment Pub Date : 2026-01-01 Epub Date: 2026-01-10 DOI: 10.1038/s43247-025-03102-6

Aliénor Lavergne, Sandy P Harrison, Kamolphat Atsawawaranunt, Ning Dong, Iain Colin Prentice

{"title":"Minimal impact of recent decline in C4 vegetation abundance on atmospheric carbon isotopic composition.","authors":"Aliénor Lavergne, Sandy P Harrison, Kamolphat Atsawawaranunt, Ning Dong, Iain Colin Prentice","doi":"10.1038/s43247-025-03102-6","DOIUrl":"10.1038/s43247-025-03102-6","url":null,"abstract":"Changes in atmospheric carbon dioxide concentrations, climate, and land management influence the abundance and distribution of C3 and C4 plants, yet their impact on the global carbon cycle remains uncertain. Here, we use a parsimonious model of C3 and C4 plant distribution, based on optimality principles, combined with a simplified representation of the global carbon cycle, to assess how shifts in plant abundances driven by carbon dioxide and climate affect global gross primary production, land carbon isotope discrimination, and the isotopic composition of atmospheric carbon dioxide. We estimate that the proportion of C4 plants in total biomass declined from about 16% to 12% between 1982 and 2016, despite an increase in the abundance of C4 crops. This decline reflects the reduced competitive advantage of C4 photosynthesis in a carbon dioxide-enriched atmosphere. As a result, global gross primary production rose by approximately 16.5 ± 1.8 petagrams of carbon, and land carbon isotope discrimination increased by 0.017 ± 0.001‰ per year. Accounting for changes in C3 and C4 abundances reduces the difference between observed and modeled trends in atmospheric carbon isotope composition, but does not fully explain the observed decrease, pointing to additional, unaccounted drivers.","PeriodicalId":10530,"journal":{"name":"Communications Earth & Environment","volume":"7 1","pages":"93"},"PeriodicalIF":8.9,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12851932/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146104216","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Time scales and gaps, Haar fluctuations and multifractal geochronologies. 时间尺度和间隙，哈尔波动和多重分形地质年代学。

IF 9.3 1区地球科学

Communications Earth & Environment Pub Date : 2026-01-01 Epub Date: 2026-01-29 DOI: 10.1038/s43247-026-03226-3

Shaun Lovejoy, Rhisiart Davies, Andrej Spiridonov, Raphael Hebert, Fabrice Lambert

引用次数: 0

Macroalgal community transformation during successive marine heatwaves in southern California kelp forests. 南加州海带森林连续海洋热浪期间大型藻类群落的转变。

IF 9.3 1区地球科学

Communications Earth & Environment Pub Date : 2026-01-01 Epub Date: 2026-05-16 DOI: 10.1038/s43247-026-03599-5

Kristen M Michaud, Daniel C Reed, Robert J Miller

{"title":"Macroalgal community transformation during successive marine heatwaves in southern California kelp forests.","authors":"Kristen M Michaud, Daniel C Reed, Robert J Miller","doi":"10.1038/s43247-026-03599-5","DOIUrl":"10.1038/s43247-026-03599-5","url":null,"abstract":"Understanding the acute and longer-term effects of marine heatwaves on coastal ecosystems is critical for predicting their response to future warming. We used a 23-year time series that included two marine heatwaves (the 2014-2015 \"warm blob\" and 2018) to investigate their effects on understory macroalgae at nine rocky reefs with giant kelp forests in the Santa Barbara Channel monitored by the Santa Barbara Coastal Long Term Ecological Research program. We observed little change in macroalgal biomass or species richness in response to the heatwaves, but significant changes in community composition, including the loss of the dominant understory kelp Pterygophora californica and shifts towards subtropical and introduced species. Understory communities overall were surprisingly resilient, as community composition largely returned to pre-heatwave conditions within a few years. However, there were exceptions. In particular, subtropical species and geniculate coralline algae increased in abundance in the decade following the heatwaves, suggesting that macroalgal communities are likely to shift in the long term if marine heatwaves increase in frequency and intensity.","PeriodicalId":10530,"journal":{"name":"Communications Earth & Environment","volume":"7 1","pages":"632"},"PeriodicalIF":9.3,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13437228/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148677358","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Extreme 2016 El Niño heatwave weakened carbon export and respiration in the Equatorial Pacific. 2016年极端厄尔Niño热浪削弱了赤道太平洋的碳输出和呼吸。

IF 9.3 1区地球科学

Communications Earth & Environment Pub Date : 2026-01-01 Epub Date: 2026-03-30 DOI: 10.1038/s43247-026-03441-y

Lionel A Arteaga, Cecile S Rousseaux, Ivona Cetinić, Seth Bushinsky

{"title":"Extreme 2016 El Niño heatwave weakened carbon export and respiration in the Equatorial Pacific.","authors":"Lionel A Arteaga, Cecile S Rousseaux, Ivona Cetinić, Seth Bushinsky","doi":"10.1038/s43247-026-03441-y","DOIUrl":"10.1038/s43247-026-03441-y","url":null,"abstract":"The 2016 El Niño was the strongest warm-phase of the El Niño-Southern Oscillation recorded to date over the 21st century, leading to the development of severe ocean surface temperature anomalies - marine heatwaves - across the equatorial Pacific. Here we analyze biogeochemical model output and machine learning-based reconstructions of primarily Argo oxygen and backscattering measurements to demonstrate the impact of the 2016 El Niño in weakening oceanic carbon export - the transfer of biogenic carbon from the surface ocean to depth. We show that central equatorial Pacific anomalies in modeled carbon export flux and reconstructed optical particle backscatter and ecosystem respiration display interannual variations linked to the El Niño-Southern Oscillation, with an acute reduction of 50 % in carbon export during the 2016 El Niño. This plunge in export production is attributed to a large decrease in chlorophyll biomass observed from space, and modeled ecological changes in phytoplankton community composition.","PeriodicalId":10530,"journal":{"name":"Communications Earth & Environment","volume":"7 1","pages":"404"},"PeriodicalIF":9.3,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13167453/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147940497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

River channel change can affect flood hazard and impact substantially. 河道变化对洪涝灾害的影响是巨大的。

IF 9.3 1区地球科学

Communications Earth & Environment Pub Date : 2026-01-01 Epub Date: 2026-05-05 DOI: 10.1038/s43247-026-03517-9

Laurence Hawker, Stephen E Darby, Louise Slater, Daniel R Parsons, Richard J Boothroyd, Philip J Ashworth, Hannah Cloke, Pauline Delorme, Solomon H Gebrechorkos, Helen Griffith, Yukiko Hirabayashi, Julian Leyland, Yinxue Liu, Stuart J McLelland, Jeffrey Neal, Andrew P Nicholas, Greg Sambrook Smith, Chris Sampson, Ellie Vahidi, Michel Wortmann, Dai Yamazaki

{"title":"River channel change can affect flood hazard and impact substantially.","authors":"Laurence Hawker, Stephen E Darby, Louise Slater, Daniel R Parsons, Richard J Boothroyd, Philip J Ashworth, Hannah Cloke, Pauline Delorme, Solomon H Gebrechorkos, Helen Griffith, Yukiko Hirabayashi, Julian Leyland, Yinxue Liu, Stuart J McLelland, Jeffrey Neal, Andrew P Nicholas, Greg Sambrook Smith, Chris Sampson, Ellie Vahidi, Michel Wortmann, Dai Yamazaki","doi":"10.1038/s43247-026-03517-9","DOIUrl":"10.1038/s43247-026-03517-9","url":null,"abstract":"More than one billion people are exposed to flood risk globally, with this number projected to double by 2050. Global flood models underpin risk assessment and adaptation planning, yet typically assume that river bankfull capacity corresponds to a fixed two-year return period, neglecting spatial and temporal variability in channel characteristics. Here, we evaluate how inundated areas and population exposures respond when forced with empirically-derived bankfull capacities in the Mississippi basin using the Fathom Global Flood Model. We find that present-day bankfull flows generally correspond to return periods of less than one year, leading to systematic underestimation of flood extent (9-152%) and exposure (15-472%) across 5-, 20- and 100-year flood events, with the largest discrepancies for more frequent floods. We further show that historical changes in channel morphology can influence flood impacts at magnitudes comparable to projected climate change over multi-decadal timescales, depending on emission scenarios. Our work highlights a key structural limitation in current global flood modelling frameworks with implications for risk assessments.","PeriodicalId":10530,"journal":{"name":"Communications Earth & Environment","volume":"7 1","pages":"585"},"PeriodicalIF":9.3,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13349851/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148419390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact attribution of the March 2022 Antarctic heatwave reveals amplification by cloud feedbacks and increased future meltwater. 2022年3月南极热浪的影响归因揭示了云反馈和未来融水增加的放大效应。

IF 9.3 1区地球科学

Communications Earth & Environment Pub Date : 2026-01-01 Epub Date: 2026-04-16 DOI: 10.1038/s43247-026-03485-0

Sergi González-Herrero, Pranab Deb, Sihan Li, Daniel Argüeso, Rainette Engbers, Michael Matějka, Nander Wever, Michael Lehning

{"title":"Impact attribution of the March 2022 Antarctic heatwave reveals amplification by cloud feedbacks and increased future meltwater.","authors":"Sergi González-Herrero, Pranab Deb, Sihan Li, Daniel Argüeso, Rainette Engbers, Michael Matějka, Nander Wever, Michael Lehning","doi":"10.1038/s43247-026-03485-0","DOIUrl":"10.1038/s43247-026-03485-0","url":null,"abstract":"Antarctic heatwaves driven by atmospheric rivers are emerging as high-impact extremes, yet the role of climate change in amplifying such events remains uncertain. Here we investigate the climate change contribution to the March 2022 East Antarctic heatwave using pseudo-global warming experiments with the snow-atmospheric coupled model CRYOWRF. By comparing present-day and preindustrial storylines, we identify that under current climate, cloud and water-vapor radiation feedbacks non-linearly amplify near-surface warming by up to 10 °C (equivalent to 25% of the amplification) relative to preindustrial conditions. These feedbacks are likely underrepresented in global climate models due to their use of hydrostatic dynamics, and poor cloud representation over coarse resolutions. Future warming further intensifies this amplification, particularly along the coast, where firn air content is depleted, meltwater percolates, and ice lenses thicken. Such melting conditions threaten to accelerate surface mass loss and destabilize the fringing ice shelves. Our results reveal a key amplification pathway for Antarctic extremes, with potentially far-reaching implications for ice-sheet stability.","PeriodicalId":10530,"journal":{"name":"Communications Earth & Environment","volume":"7 1","pages":"504"},"PeriodicalIF":9.3,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13259944/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148249528","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Water filtration using softwood membranes provides a nature-based solution for nanoplastic removal. 使用软木膜的水过滤为纳米塑料的去除提供了一种基于自然的解决方案。

IF 9.3 1区地球科学

Communications Earth & Environment Pub Date : 2026-01-01 Epub Date: 2026-04-04 DOI: 10.1038/s43247-026-03469-0

Alice Pradel, Maximilian Ritter, Wenqing Yan, Denise M Mitrano

{"title":"Water filtration using softwood membranes provides a nature-based solution for nanoplastic removal.","authors":"Alice Pradel, Maximilian Ritter, Wenqing Yan, Denise M Mitrano","doi":"10.1038/s43247-026-03469-0","DOIUrl":"10.1038/s43247-026-03469-0","url":null,"abstract":"Nanoplastic (NP) contamination in water intended for human consumption will require efficient, environmentally friendly, and cost-effective NP-removal methods. This study evaluates the use of native wood membranes to filter NPs from freshwater using a pressure-driven process. The performance of the filter was assessed for different wood species, membrane thicknesses and filtration cycles, by measuring NP retention efficiency and NP deposition in the wood membranes. Retention efficiency varied widely between species. After a single filtration cycle, spruce, a common softwood species, reduced NP concentrations by approximately 90%, while poplar, a hardwood, only reduced NP concentrations by ~20%. These differences are linked to microstructural differences between soft- and hardwood tissues. Increased membrane thickness and repeated filtration further enhanced NP retention in all conditions. This work demonstrates that native softwood membranes (i.e., without chemical modification) can be used in low-pressure filtration systems to remove NPs.","PeriodicalId":10530,"journal":{"name":"Communications Earth & Environment","volume":"7 1","pages":"475"},"PeriodicalIF":9.3,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13229929/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148162062","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0