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Soil Erosion as a Driver of Eutrophication: An Analysis of European Lakes Using Sentinel-2 Satellite Data 土壤侵蚀是富营养化的驱动因素:基于Sentinel-2卫星数据的欧洲湖泊分析。
IF 12 1区 环境科学与生态学
Global Change Biology Pub Date : 2025-09-12 DOI: 10.1111/gcb.70494
Surya Gupta, Simon Scheper, Pasquale Borrelli, Panos Panagos, Christine Alewell
{"title":"Soil Erosion as a Driver of Eutrophication: An Analysis of European Lakes Using Sentinel-2 Satellite Data","authors":"Surya Gupta,&nbsp;Simon Scheper,&nbsp;Pasquale Borrelli,&nbsp;Panos Panagos,&nbsp;Christine Alewell","doi":"10.1111/gcb.70494","DOIUrl":"10.1111/gcb.70494","url":null,"abstract":"<p>Soil erosion by water is a critical factor contributing to eutrophication in water bodies, acting as a significant source of nitrogen and phosphorus from land. Many models predict soil erosion and sediment transport into lakes and rivers, and the connection between soil erosion triggering eutrophication is considered textbook knowledge. However, limited data-based scientific evidence exists on the consequences of soil erosion and sediment fluxes on eutrophication. This study examines the impact of soil erosion on eutrophication, considering other covariates such as slope, elevation, phosphorus, nitrogen, flow accumulation and temperature, by analyzing zones of varying sizes around lakes in six different countries of Europe covering an area of 1596 km<sup>2</sup>: Austria (81 lakes), France (310), Germany (266), Hungary (73), Poland (465), and the United Kingdom (316). We utilized multispectral Sentinel-2 satellite remote sensing data at 20-m spatial resolution for 2021 and 2022 to estimate the Floating Algae Index (FAI) of lakes. FAI allowed us to quantify bloom occurrence (BO)—the frequency of detected algal blooms—and maximum bloom extent (MBE)—the total area affected by blooms during the study period. The MBEs were then correlated with the aforementioned covariates within zones of 100 m, 200 m, 500 m, and 1 km distance from the lakes using machine learning algorithms to identify the most significant and thus driving factors within these areas. Our results prove quantitatively that soil erosion is indeed a key driver of eutrophication for all the selected European regions except Austria. Water temperature, nutrient input, and slope are additional important drivers of lake eutrophication.</p>","PeriodicalId":175,"journal":{"name":"Global Change Biology","volume":"31 9","pages":""},"PeriodicalIF":12.0,"publicationDate":"2025-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/gcb.70494","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145035651","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Impacts of Climate, Organic Management, and Degradation Status on Soil Biodiversity in Agroecosystems Worldwide 气候、有机管理和退化状况对全球农业生态系统土壤生物多样性的影响
IF 12 1区 环境科学与生态学
Global Change Biology Pub Date : 2025-09-12 DOI: 10.1111/gcb.70486
Pablo Sánchez-Cueto, Martin Hartmann, Laura García-Velázquez, Beatriz Gozalo, Victoria Ochoa, Giulia Bongiorno, Ron Goede, Melpomeni Zoka, Nikolaos Stathopoulos, Charalampos Kontoes, Luis Daniel Olivares Martinez, Jorge Mataix-Solera, Fuensanta García-Orenes, Tomas Van De Sande, Helle Hestbjerg, Ina Alsina, Zoltán Tóth, María Paula Barral, Ximena Sirimarco, Joseph Blaise Dongmo, Julienne Nguefack, Rochana Tangkoonboribun, Anna Clocchiatti, Radu Ghemis, Montse Bosch, Marcos Parras-Moltó, Cristina Yacoub-Lopez, Santiago Soliveres, Salvado Lladó
{"title":"Impacts of Climate, Organic Management, and Degradation Status on Soil Biodiversity in Agroecosystems Worldwide","authors":"Pablo Sánchez-Cueto,&nbsp;Martin Hartmann,&nbsp;Laura García-Velázquez,&nbsp;Beatriz Gozalo,&nbsp;Victoria Ochoa,&nbsp;Giulia Bongiorno,&nbsp;Ron Goede,&nbsp;Melpomeni Zoka,&nbsp;Nikolaos Stathopoulos,&nbsp;Charalampos Kontoes,&nbsp;Luis Daniel Olivares Martinez,&nbsp;Jorge Mataix-Solera,&nbsp;Fuensanta García-Orenes,&nbsp;Tomas Van De Sande,&nbsp;Helle Hestbjerg,&nbsp;Ina Alsina,&nbsp;Zoltán Tóth,&nbsp;María Paula Barral,&nbsp;Ximena Sirimarco,&nbsp;Joseph Blaise Dongmo,&nbsp;Julienne Nguefack,&nbsp;Rochana Tangkoonboribun,&nbsp;Anna Clocchiatti,&nbsp;Radu Ghemis,&nbsp;Montse Bosch,&nbsp;Marcos Parras-Moltó,&nbsp;Cristina Yacoub-Lopez,&nbsp;Santiago Soliveres,&nbsp;Salvado Lladó","doi":"10.1111/gcb.70486","DOIUrl":"10.1111/gcb.70486","url":null,"abstract":"<p>Unsustainable soil management, climate change, and land degradation jeopardize soil biodiversity and soil-mediated ecosystem functions. Although the transition from conventional to organic agriculture has been proposed as a potential solution to alleviate these pressures, there is limited evidence of its effectiveness in enhancing belowground biodiversity across different biogeographical regions, climates, and land degradation levels. In this study, we holistically assessed the status of soil biodiversity, from microorganisms to meso- and macrofauna, in agroecosystems distributed across four continents. We identified the primary environmental community composition drivers and assessed the effects of the transition from conventional to organic management (no chemical inputs) on soil ecology. Our findings highlight the mean temperature and precipitation of the warmest and coldest quarters of the year, aridity, pH, and soil texture as the primary drivers of the different soil biodiversity components. Overall, organic farming has a significant but small impact on soil biodiversity compared to the other community drivers. On top of that, the results demonstrate the importance of a regional-specific context for a future generalized transition towards organic soil management. Specifically, under the most arid conditions in our study, organic management showed potential to buffer biodiversity loss in highly degraded soils, with a significant increase in diversity for prokaryotes and protists compared to conventionally managed soils. Therefore, the combination of a global and, simultaneously, regional-specific approach supports the hypothesis that a shift towards organic agriculture would maximize its beneficial impact on belowground diversity in highly degraded soils under arid conditions over the coming years, being a crucial tool to increase resilience and adaptation to global change for agriculture.</p>","PeriodicalId":175,"journal":{"name":"Global Change Biology","volume":"31 9","pages":""},"PeriodicalIF":12.0,"publicationDate":"2025-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/gcb.70486","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145043761","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Long-Term Drought Persistently Shifts Plant and Soil Microbial Communities but Has Limited Impact on CO2 Fluxes Under Subsequent Drought 长期干旱持续改变植物和土壤微生物群落,但对后续干旱下CO2通量的影响有限
IF 12 1区 环境科学与生态学
Global Change Biology Pub Date : 2025-09-10 DOI: 10.1111/gcb.70441
Mariana Gliesch, Leonardo Hinojosa Sanchez, Kiki Boreel, Albert Tietema, Franciska T. de Vries
{"title":"Long-Term Drought Persistently Shifts Plant and Soil Microbial Communities but Has Limited Impact on CO2 Fluxes Under Subsequent Drought","authors":"Mariana Gliesch,&nbsp;Leonardo Hinojosa Sanchez,&nbsp;Kiki Boreel,&nbsp;Albert Tietema,&nbsp;Franciska T. de Vries","doi":"10.1111/gcb.70441","DOIUrl":"https://doi.org/10.1111/gcb.70441","url":null,"abstract":"<p>Droughts are increasing with climate change, affecting the functioning of terrestrial ecosystems and limiting their capacity to mitigate rising atmospheric CO<sub>2</sub> levels. However, there is still large uncertainty on the long-term impacts of drought on ecosystem carbon (C) cycling, and how this determines the effect of subsequent droughts. Here, we aimed to quantify how drought legacy affects the response of a heathland ecosystem to a subsequent drought for two life stages of <i>Calluna vulgaris</i> resulting from different mowing regimes. We imposed a subsequent drought in a long-term (20 years) drought field experiment combined with different mowing years. We hypothesised that drought legacy would reduce the impact of a subsequent drought on ecosystem respiration (ER) through shifts in microbial community composition, and we expected a stronger effect of drought legacy on building stage <i>Calluna</i> (mowed in 2013) than on seedlings (mowed in 2020), with knock-on effects for net ecosystem exchange (NEE) and ER. We found that drought legacy persistently shifted soil bacterial and fungal communities, but the subsequent drought had minimal effect. Drought legacy also shifted plant community composition, with the strongest effect of subsequent drought on the building stage of <i>Calluna</i>. Subsequent drought reduced all CO<sub>2</sub> fluxes independent of drought legacy, and this effect was most pronounced in the building stage of <i>Calluna</i>. The observed strong and persistent shifts in soil microbial communities as a result of 20 years of summer drought did not explain ecosystem CO<sub>2</sub> fluxes, which were determined by changes in plant communities. Thus, our findings show a mismatch between aboveground and belowground responses to drought, and highlight that older heathlands are more vulnerable to drought, reducing their CO<sub>2</sub> uptake capacity in the crucial phase of ecosystem C stock accumulation. These findings give insight into the consequences of long-term drought for ecosystem C cycling and its response to future drought.</p>","PeriodicalId":175,"journal":{"name":"Global Change Biology","volume":"31 9","pages":""},"PeriodicalIF":12.0,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/gcb.70441","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145021825","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Response Modes of Global Vegetation to Extreme Drought 全球植被对极端干旱的响应模式
IF 12 1区 环境科学与生态学
Global Change Biology Pub Date : 2025-09-10 DOI: 10.1111/gcb.70488
Yun-Hao Bai, 白云昊, Jinlong Chen, 陈金龙, Yi-Wei Zhang, 张艺伟, Zhiyao Tang, 唐志尧
{"title":"Response Modes of Global Vegetation to Extreme Drought","authors":"Yun-Hao Bai,&nbsp;白云昊,&nbsp;Jinlong Chen,&nbsp;陈金龙,&nbsp;Yi-Wei Zhang,&nbsp;张艺伟,&nbsp;Zhiyao Tang,&nbsp;唐志尧","doi":"10.1111/gcb.70488","DOIUrl":"https://doi.org/10.1111/gcb.70488","url":null,"abstract":"<div>\u0000 \u0000 <p>Increasingly frequent extreme droughts pose a serious threat to global vegetation. However, previous studies have not characterized the whole response process of vegetation to drought, and there are uncertainties in their methods and indicators. In this study, we developed a new indicator system and derived the response modes of global vegetation to extreme drought. We examined the influence of environmental variables on the modes, as well as the temporal changes of vegetation's responses. We found that vegetation in low- and mid-latitude regions exhibited contrasting response modes to extreme drought. Long-term moisture played a dominant role in shaping the spatial patterns. Over the past 40 years, both the total loss and response time of global vegetation have increased with time. Among various biome types, tropical and subtropical moist broadleaf forests exhibited a mode of low maximum decrease and short response time to extreme drought, resulting in the lowest total loss, whereas temperate grasslands, savannas and shrublands demonstrated high vulnerability in both current and future trends, warranting great attention. These results provide valuable insights for a more comprehensive understanding of global vegetation's responses to extreme drought and for assessing the vulnerability of different biome types.</p>\u0000 </div>","PeriodicalId":175,"journal":{"name":"Global Change Biology","volume":"31 9","pages":""},"PeriodicalIF":12.0,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145021881","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Soil Carbon Availability Drives Depth-Dependent Responses of Microbial Nitrogen Use Efficiency to Warming 土壤碳有效性驱动微生物氮利用效率对变暖的深度依赖响应
IF 12 1区 环境科学与生态学
Global Change Biology Pub Date : 2025-09-10 DOI: 10.1111/gcb.70490
Qiufang Zhang, Wenkuan Qin, Xiaojie Li, Jiguang Feng, Yuehmin Chen, Zhenhua Zhang, Jin-Sheng He, Andreas Richter, Joshua P. Schimel, Biao Zhu
{"title":"Soil Carbon Availability Drives Depth-Dependent Responses of Microbial Nitrogen Use Efficiency to Warming","authors":"Qiufang Zhang,&nbsp;Wenkuan Qin,&nbsp;Xiaojie Li,&nbsp;Jiguang Feng,&nbsp;Yuehmin Chen,&nbsp;Zhenhua Zhang,&nbsp;Jin-Sheng He,&nbsp;Andreas Richter,&nbsp;Joshua P. Schimel,&nbsp;Biao Zhu","doi":"10.1111/gcb.70490","DOIUrl":"https://doi.org/10.1111/gcb.70490","url":null,"abstract":"<div>\u0000 \u0000 <p>Microbial nitrogen use efficiency (NUE) describes the partitioning of organic N between microbial growth and N mineralization, which is crucial for assessing soil N retention. However, how warming affects NUE along soil depth remains unclear. Based on a whole-soil-profile warming experiment (0 to 100 cm, +4°C) on the Qinghai-Tibetan Plateau, combined with <sup>18</sup>O and <sup>15</sup>N isotope labeling techniques, we determined soil carbon (C) composition, edaphic properties, and microbial parameters. The results showed that NUE declined with soil depth in both control and warming treatments, driven by microbial C limitation. The response of NUE to warming varied with soil depth. Warming reduced topsoil (0–30 cm) microbial N growth, ultimately leading to a decrease in NUE, but had no effect in deep soils (30–100 cm). Jointly, these findings highlight that warming may exacerbate soil N loss in topsoil, and that maintaining microbial C and N availability could be a key strategy for preserving microbial N sequestration under warming conditions.</p>\u0000 </div>","PeriodicalId":175,"journal":{"name":"Global Change Biology","volume":"31 9","pages":""},"PeriodicalIF":12.0,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145021882","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Hydroclimatic Rebound Drives Extreme Fire in California's Non-Forested Ecosystems 水文气候反弹导致加州非森林生态系统发生极端火灾
IF 12 1区 环境科学与生态学
Global Change Biology Pub Date : 2025-09-10 DOI: 10.1111/gcb.70481
Joe McNorton, Alberto Moreno, Marco Turco, Jessica Keune, Francesca Di Giuseppe
{"title":"Hydroclimatic Rebound Drives Extreme Fire in California's Non-Forested Ecosystems","authors":"Joe McNorton,&nbsp;Alberto Moreno,&nbsp;Marco Turco,&nbsp;Jessica Keune,&nbsp;Francesca Di Giuseppe","doi":"10.1111/gcb.70481","DOIUrl":"https://doi.org/10.1111/gcb.70481","url":null,"abstract":"<p>The catastrophic Los Angeles Fires of January 2025 underscore the urgent need to understand the complex interplay between hydroclimatic variability and wildfire behavior. This study investigates how sequential wet and dry periods, hydroclimatic rebound events, create compounding environmental conditions that culminate in extreme fire events. Our results show that a cascade of moisture anomalies, from the atmosphere to vegetation health, precedes these fires by around 6–27 months. This is followed by a drying cascade 6 months before ignition that results in anomalously high and dry fuel loads conducive to fires. These patterns are confirmed when analyzing recent (2012–2025) extreme fire events in Mediterranean and Desert Californian biomes. We find hydroclimatic rebound as a key mechanism driving extreme wildfire risk, where moisture accumulation fuels vegetation growth that later dries into highly flammable fuel. In contrast, extreme fires in the fuel-rich Forested Mountain regions are less influenced by the moistening cascade and more impacted by prolonged drought conditions, which typically persist up to 11 months prior to fire occurrence. These insights improve fuel-informed operational fire forecasts for the January 2025 Los Angeles fires, particularly when year-specific fuel conditions are included. This underscores the value of incorporating long-memory variables to better anticipate extreme events in fuel-limited regions.</p>","PeriodicalId":175,"journal":{"name":"Global Change Biology","volume":"31 9","pages":""},"PeriodicalIF":12.0,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/gcb.70481","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145021883","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Multiyear Drought Strengthens Positive and Negative Functional Diversity Effects on Tree Growth Response 多年干旱增强了树木生长响应的正、负功能多样性效应
IF 12 1区 环境科学与生态学
Global Change Biology Pub Date : 2025-09-10 DOI: 10.1111/gcb.70394
Hernán Serrano-León, Haben Blondeel, Paula Glenz, Johannes Steurer, Florian Schnabel, Lander Baeten, Joannès Guillemot, Nicolas Martin-StPaul, Georgios Skiadaresis, Michael Scherer-Lorenzen, Damien Bonal, Matthieu Boone, Renaud Decarsin, Arsène Druel, Douglas L. Godbold, Jialiang Gong, 佳亮 龚, Peter Hajek, Hervé Jactel, Julia Koricheva, Simone Mereu, Quentin Ponette, Boris Rewald, Hans Sandén, Jan Van den Bulcke, Kris Verheyen, Ramona Werner, Jürgen Bauhus
{"title":"Multiyear Drought Strengthens Positive and Negative Functional Diversity Effects on Tree Growth Response","authors":"Hernán Serrano-León,&nbsp;Haben Blondeel,&nbsp;Paula Glenz,&nbsp;Johannes Steurer,&nbsp;Florian Schnabel,&nbsp;Lander Baeten,&nbsp;Joannès Guillemot,&nbsp;Nicolas Martin-StPaul,&nbsp;Georgios Skiadaresis,&nbsp;Michael Scherer-Lorenzen,&nbsp;Damien Bonal,&nbsp;Matthieu Boone,&nbsp;Renaud Decarsin,&nbsp;Arsène Druel,&nbsp;Douglas L. Godbold,&nbsp;Jialiang Gong,&nbsp;佳亮 龚,&nbsp;Peter Hajek,&nbsp;Hervé Jactel,&nbsp;Julia Koricheva,&nbsp;Simone Mereu,&nbsp;Quentin Ponette,&nbsp;Boris Rewald,&nbsp;Hans Sandén,&nbsp;Jan Van den Bulcke,&nbsp;Kris Verheyen,&nbsp;Ramona Werner,&nbsp;Jürgen Bauhus","doi":"10.1111/gcb.70394","DOIUrl":"https://doi.org/10.1111/gcb.70394","url":null,"abstract":"<p>Mixed-species forests are proposed to enhance tree resistance and resilience to drought. However, growing evidence shows that tree species richness does not consistently improve tree growth responses to drought. The underlying mechanisms remain uncertain, especially under unprecedented multiyear droughts. We used a network of planted tree diversity experiments to investigate how neighborhood tree diversity and species' functional traits influence individual tree responses to drought. We analyzed tree cores (948 trees across 16 species) from nine young experiments across Europe featuring tree species richness gradients (1–6 species), which experienced recent severe droughts. Radial growth response to drought was quantified as tree-ring biomass increment using X-ray computed tomography. We applied hydraulic trait-based growth models to analyze single-year drought responses across all sites and site-specific responses during consecutive drought years. Growth responses to a single-year drought were partially explained by the focal species' hydraulic safety margin (representing species' drought tolerance) and drought intensity, but were independent of neighborhood species richness. The effects of neighborhood functional diversity on growth responses shifted from positive to negative with increasing drought duration during a single growing season. Tree diversity effects on growth responses strengthened during consecutive drought years and were site-specific with contrasting directions (both positive and negative). This indicates opposing diversity effects pathways under consecutive drought events, possibly resulting from competitive release or greater water consumption in diverse mixtures. We conclude that tree diversity effects on growth under single-year droughts may differ considerably from responses to consecutive drought years. Our study highlights the need to consider trait-based approaches (specifically, hydraulic traits) and neighborhood scale processes to understand the multifaceted responses of tree mixtures under prolonged drought stress. This experimental approach provides a robust framework to test biodiversity-ecosystem functioning (BEF) relationships relevant for young, planted forests under increased drought stress.</p>","PeriodicalId":175,"journal":{"name":"Global Change Biology","volume":"31 9","pages":""},"PeriodicalIF":12.0,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/gcb.70394","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145021824","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Climate, Rotation, and Tillage Impacts on Soybean Yield Gains in a 50-Year Experiment 50年气候、轮作和耕作对大豆增产的影响
IF 12 1区 环境科学与生态学
Global Change Biology Pub Date : 2025-09-08 DOI: 10.1111/gcb.70469
Raziel A. Ordóñez, Shaun N. Casteel, Rachel H. Stevens, Sotirios V. Archontoulis, Tony J. Vyn
{"title":"Climate, Rotation, and Tillage Impacts on Soybean Yield Gains in a 50-Year Experiment","authors":"Raziel A. Ordóñez,&nbsp;Shaun N. Casteel,&nbsp;Rachel H. Stevens,&nbsp;Sotirios V. Archontoulis,&nbsp;Tony J. Vyn","doi":"10.1111/gcb.70469","DOIUrl":"https://doi.org/10.1111/gcb.70469","url":null,"abstract":"<p>Understanding how interactive management practices and climatic behavior influence soybean [<i>Glycine max</i> (L.) Merr.] productivity is imperative to inform future production systems under changing climate. This study examined eight unique long-term production systems from 1975 to 2024 on a fertile rainfed Mollisol in Indiana, USA. Using this 400-unit field-scale dataset comparing soybean in monocropping versus following maize (<i>Zea mays</i> L.) across four tillage intensities (Moldboard Plow, Chisel, Ridge/Strip-Till and No-Till), we investigated how these practices interact with each other and with weather patterns. Our focus was on the spring (1 April–20 June) and summer (21 June–30 September) periods, and their effects on final yields and morphometric plant phenes. Soybean yield results during the 50-year period, when spring temperatures increased by 1.6°C, reflected (i) consistently positive yield responses to higher spring temperatures, at the rate of 796 kg ha<sup>−1</sup>/°C, especially in monocropping, despite concurrent development of wetter springs and drier summers; (ii) improved yield resilience in the No-Till versus tilled systems; (iii) average soybean yields rotated with maize were 7.7% above those in monocropping but varied widely with tillage and year; and (iv) yield gain rates over time averaging 29.5 kg ha<sup>−1</sup> year<sup>−1</sup> for monocropping and 25.6 kg ha<sup>−1</sup> year<sup>−1</sup> for rotation. Plant height at 4- and 8-weeks post-planting was more influenced by air temperatures than precipitation, but final yield differences among tillage intensities were proportionately much smaller than relative soybean height differences in spring. These findings of consistent yield gains across multiple rotation and tillage regimes, despite changing climate factors, can inform actionable strategies for sustainable food production in future warming climate scenarios. Additionally, the unique rotation/tillage outcomes for 50 years provide a unique baseline for process-based crop model calibration to enhance our ability to design future cropping systems.</p>","PeriodicalId":175,"journal":{"name":"Global Change Biology","volume":"31 9","pages":""},"PeriodicalIF":12.0,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/gcb.70469","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145012316","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Expanding Monitoring Capacity for Potential Invasive Species in Arctic Canada With Environmental DNA Metabarcoding 利用环境DNA元条形码扩大加拿大北极地区潜在入侵物种监测能力。
IF 12 1区 环境科学与生态学
Global Change Biology Pub Date : 2025-09-08 DOI: 10.1111/gcb.70452
Elizabeth Boyse, Melody S. Clark, Ian M. Carr, Alison J. Cook, Philippe Archambault, Jean E. Holloway, Zhewen Luo, Michael Milton, Mathieu Roy, Jackie Dawson, Victoria L. Peck
{"title":"Expanding Monitoring Capacity for Potential Invasive Species in Arctic Canada With Environmental DNA Metabarcoding","authors":"Elizabeth Boyse,&nbsp;Melody S. Clark,&nbsp;Ian M. Carr,&nbsp;Alison J. Cook,&nbsp;Philippe Archambault,&nbsp;Jean E. Holloway,&nbsp;Zhewen Luo,&nbsp;Michael Milton,&nbsp;Mathieu Roy,&nbsp;Jackie Dawson,&nbsp;Victoria L. Peck","doi":"10.1111/gcb.70452","DOIUrl":"10.1111/gcb.70452","url":null,"abstract":"<p>To date, environmental conditions have been enough to act as an effective barrier to prevent non-indigenous species from arriving and establishing in Arctic Canada. However, rapidly changing climatic conditions are creating more suitable habitats for non-indigenous species to potentially establish and become invasive. Concurrently, shipping traffic in parts of Arctic Canada has increased by over 250% since 1990, providing an effective vector for transporting non-indigenous species to the region. Arctic Canada has been historically undersampled, so Arctic biota inventories are incomplete, hampering efforts to establish if a species is new to the region (and potentially invasive) or newly discovered. In this study, we utilize environmental DNA (eDNA) metabarcoding and ships of opportunity to assess eukaryotic community composition and potential invasives along one of the busiest shipping routes, the Northwest Passage. One liter seawater samples were collected in triplicate at 27 locations, targeting touristic hotspots frequently visited by passenger vessels. Eukaryotic DNA was amplified from the 18S rRNA V9 and COI regions, resulting in 126 unique Amplicon Sequence Variants (ASVs) detected with COI and 391 ASVs with 18S, providing an important snapshot of current community composition. Copepods, dinoflagellates, and diatoms were the most abundant taxonomic groups, correlating well with previous net sampler surveys, validating the efficacy of eDNA for biodiversity surveillance. We also report the first detections of a prolific invasive species, the bay barnacle (<i>Amphibalanus improvisus</i>), in Arctic Canada. Further work is currently in progress to establish whether these detections represent transient barnacle larvae or sessile adults capable of recruiting and reproducing. Our study demonstrates the utility of eDNA for the detection of non-indigenous species in a data-poor area, which, if combined with citizen science initiatives and local communities, could provide a vital monitoring tool for the detection of new invasives in this rapidly changing area.</p>","PeriodicalId":175,"journal":{"name":"Global Change Biology","volume":"31 9","pages":""},"PeriodicalIF":12.0,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/gcb.70452","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145008739","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Making Restoration Effective for Dynamic Coastal Wetlands 海岸带动态湿地的有效修复
IF 12 1区 环境科学与生态学
Global Change Biology Pub Date : 2025-09-05 DOI: 10.1111/gcb.70455
Qiang He, Zu'ang Li, Chris S. Elphick, Yizhou Sun, William J. Sutherland, Nigel G. Taylor, Kerstin Wasson
{"title":"Making Restoration Effective for Dynamic Coastal Wetlands","authors":"Qiang He,&nbsp;Zu'ang Li,&nbsp;Chris S. Elphick,&nbsp;Yizhou Sun,&nbsp;William J. Sutherland,&nbsp;Nigel G. Taylor,&nbsp;Kerstin Wasson","doi":"10.1111/gcb.70455","DOIUrl":"https://doi.org/10.1111/gcb.70455","url":null,"abstract":"<div>\u0000 \u0000 <p>To halt and reverse the trends of ecosystem loss and degradation under global change, nations globally are promoting ecosystem restoration. Restoration is particularly crucial to coastal wetlands (including tidal marshes, mangrove forests, and tidal flats), which are among the most important ecosystems on Earth but have been severely depleted and degraded. In this review, we explore the question of how to make restoration more effective for coastal wetlands in light of the often-overlooked dynamic nature of these transitional ecosystems between land and ocean. Currently, restoration efforts have focused on removing anthropogenic threats, habitat reconstruction, and planting foundation species, often with mixed success and high costs. The challenges largely lie in the abiotic and biotic dynamics of these transitional ecosystems, including (i) fluctuating environmental stresses, (ii) variable trophic and nontrophic species interactions, (iii) changing connectivity with adjacent land, sea, and freshwater systems, and (iv) accelerating climate change, including sea level rise, droughts, and storms. Future restoration should explicitly account for these abiotic and biotic dynamics from threat removal to habitat reconstruction, assisted succession, and post-restoration management. We highlight novel yet practical measures to enhance success. In the coming decades, bending the curve of coastal wetland loss and degradation globally also requires better understanding of the abiotic and biotic dynamics of these transitional ecosystems prone to change, using this understanding to develop innovative restoration approaches, and applying new approaches to upscale restoration in synergy with socioeconomic development. Critical to these efforts are collaborations among ecologists, policymakers, business investors, restoration practitioners, and the many millions of people dependent on coastal wetlands.</p>\u0000 </div>","PeriodicalId":175,"journal":{"name":"Global Change Biology","volume":"31 9","pages":""},"PeriodicalIF":12.0,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144990759","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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