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Revealing the Full Picture of Agricultural Plastic Legacy Pollution: Toward “Zero-Leakage” Management in Chinese Farmlands 揭示农用塑料遗留污染的全貌:中国农田“零泄漏”管理
IF 12 1区 环境科学与生态学
Global Change Biology Pub Date : 2025-08-25 DOI: 10.1111/gcb.70471
Zhidong Zhang, Zhongling Guo
{"title":"Revealing the Full Picture of Agricultural Plastic Legacy Pollution: Toward “Zero-Leakage” Management in Chinese Farmlands","authors":"Zhidong Zhang, Zhongling Guo","doi":"10.1111/gcb.70471","DOIUrl":"https://doi.org/10.1111/gcb.70471","url":null,"abstract":"<p>The theme for World Environment Day on June 5, 2025, was “Beat Plastic Pollution.” Indeed, by affecting different environmental compartments, plastic pollution has emerged as a global concern, with agricultural plastic mulch films being a major source of farmland contamination (Rillig et al. <span>2024</span>; Thompson et al. <span>2024</span>). Significantly, as the world's leading plastic mulch film-consuming country, China uses approximately 68% of global plastic mulch film produced globally (Dai et al. <span>2025</span>). The increasing application of plastic mulch film has led to persistent residue accumulation, which degrades soil integrity, hinders hydrological and nutrient processes, and results in weak germination and loss of crop yield (Zhang et al. <span>2020</span>; Huang and Xia <span>2024</span>; Landrigan et al. <span>2025</span>). Despite rising concerns, there is limited systematic, nationwide research on agricultural plastic pollution in China, particularly in terms of trend prediction and impact assessment.</p><p>To date, the common approaches for precise quantification of plastic mulch film debris include remote sensing–based mapping of plastic mulch film coverage, geostatistical methods, substance flow analysis, and machine learning algorithms (Zhou et al. <span>2023</span>; Zhang et al. <span>2025</span>). In fact, these methods have several limitations when they are applied at a regional scale, including data scarcity, poor model interpretability, and insufficient capacity to simulate dynamic policy scenarios, thus restricting their applicability to national-scale debris monitoring and policymaking. This critical knowledge gap has significantly hindered the development and targeted implementation of evidence-based policies aimed at controlling plastic mulch film contamination in China.</p><p>Once regarded as a breakthrough in boosting agricultural productivity and water-use efficiency, plastic mulch film is now recognized as a double-edged sword within China's agricultural systems. These limitations underscore the need for integrated modeling approaches—a gap addressed by Dai et al. (<span>2025</span>). In the study published in <i>Global Change Biology</i>, Dai et al. (<span>2025</span>) offer a national inventory of macroplastic residues (> 5 mm) in Chinese croplands, providing quantitative predictions of environmental impact trends from 1993 to 2050. Marked by its integration of comprehensive datasets and methodologically robust modeling, their study is the most detailed and authoritative quantification of agricultural plastic pollution in China to date. With China accounting for approximately 68% of global plastic mulch film consumption, Dai et al. (<span>2025</span>) bridge the gap between localized empirical observations and the data requirements of national-scale policy formulation by integrating 3145 field survey sites and over three decades of national mulch usage statistics.</p><p>Dai et al. (<span>2025</spa","PeriodicalId":175,"journal":{"name":"Global Change Biology","volume":"31 8","pages":""},"PeriodicalIF":12.0,"publicationDate":"2025-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/gcb.70471","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144897223","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
Intensified Aridity Hinders Soil Microbes From Improving Their Nitrogen Use Efficiency 干旱加剧阻碍了土壤微生物提高氮利用效率
IF 12 1区 环境科学与生态学
Global Change Biology Pub Date : 2025-08-25 DOI: 10.1111/gcb.70453
Jingyi Yang, Zitong Wang, Ziping Liu, Qing Chang, Bo Wang, Yangjian Zhang, Edith Bai
{"title":"Intensified Aridity Hinders Soil Microbes From Improving Their Nitrogen Use Efficiency","authors":"Jingyi Yang,&nbsp;Zitong Wang,&nbsp;Ziping Liu,&nbsp;Qing Chang,&nbsp;Bo Wang,&nbsp;Yangjian Zhang,&nbsp;Edith Bai","doi":"10.1111/gcb.70453","DOIUrl":"https://doi.org/10.1111/gcb.70453","url":null,"abstract":"<div>\u0000 \u0000 <p>Microbial nitrogen (N) use efficiency (NUE) is crucial for retaining N in soils and supplying N to plants. However, how soil microbial NUE in N-limited dryland responds to aridity remains poorly understood. Here we used <sup>18</sup>O and <sup>15</sup>N isotope labeling techniques to investigate the effects of climatic, edaphic, and biotic factors on microbial N metabolism along a 2200 km aridity gradient on the Tibetan Plateau. We found soil microbes could enhance their NUE to cope with N limitation, but this ability was hindered when aridity index (AI) &lt; 0.12 (extremely dry conditions) where water limitation directly inhibited microbial growth. As water limitation weakened (AI &gt; 0.12), microbes increased their NUE with decreasing aridity because they got more limited by N and temperature. The increase of microbial NUE increased microbial necromass N, contributing to the increase of soil total N. Our findings provide new insights into microbial N use strategies under water- and N-limited conditions and their vital role in N retention in ecosystems. This helps to deploy microbial potential in conserving N in soils for higher productivity and to better predict soil N processes under global changes.</p>\u0000 </div>","PeriodicalId":175,"journal":{"name":"Global Change Biology","volume":"31 8","pages":""},"PeriodicalIF":12.0,"publicationDate":"2025-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144894373","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
A Global Account of Established Non-Native Fish Species 已建立的非本地鱼类的全球帐户
IF 12 1区 环境科学与生态学
Global Change Biology Pub Date : 2025-08-25 DOI: 10.1111/gcb.70451
Phillip J. Haubrock, Mariana Novello, Neil Angelo Abreo, Dagmara Błońska, Ana Clara Sampaio Franco, Ismael Soto, Giuseppe Castaldelli, Stelios Katsanevakis, Antonín Kouba, Paride Balzani, Irmak Kurtul, Ali Serhan Tarkan, Elizabeta Briski, Robert Britton
{"title":"A Global Account of Established Non-Native Fish Species","authors":"Phillip J. Haubrock,&nbsp;Mariana Novello,&nbsp;Neil Angelo Abreo,&nbsp;Dagmara Błońska,&nbsp;Ana Clara Sampaio Franco,&nbsp;Ismael Soto,&nbsp;Giuseppe Castaldelli,&nbsp;Stelios Katsanevakis,&nbsp;Antonín Kouba,&nbsp;Paride Balzani,&nbsp;Irmak Kurtul,&nbsp;Ali Serhan Tarkan,&nbsp;Elizabeta Briski,&nbsp;Robert Britton","doi":"10.1111/gcb.70451","DOIUrl":"https://doi.org/10.1111/gcb.70451","url":null,"abstract":"<p>The introduction of non-native aquatic species has fundamentally transformed aquatic assemblages, primarily due to human activities, such as aquaculture, fisheries enhancement, aquarium trade, the creation of artificial corridors, and deliberate and accidental releases. Despite growing concern for biological invasions, there is no overall global appraisal of successful non-native fishes. This study compiled a comprehensive dataset from several global sources to examine the taxonomic diversity, geographical distribution, introduction pathways, and ecological impacts of non-native freshwater and marine fishes. Our dataset includes 1535 established non-native fish species in 193 countries (82% of the global coverage), with Leuciscidae, Cichlidae, Salmonidae, and Cyprinidae being the most represented families. Although the incline in first reportings appears almost linear, annual reporting has been declining for decades, suggesting fish introduction rates are decreasing. The main introduction pathways are aquarium trade, aquaculture, fishery augmentation, and the creation of artificial corridors. The importance of introduction pathways substantially differed between freshwater species (primarily the aquarium trade and aquaculture) and marine species (corridors). While extensive records exist for hundreds of non-native fish species, information on their impact types and impact mechanisms remains available only for a third of these species, highlighting broad knowledge deficiencies. Available impact information indicates that non-native fish species may threaten native biodiversity through primarily competition and predation as dominant mechanisms. The magnitude of highest-risk invasions suggests remediation is possible through urgent proactive policy and management interventions. This comprehensive global evaluation of established fish species and their ecological effects thus addresses critical data deficiencies, strengthens risk assessment frameworks, and supports the development of targeted biosecurity policies on priority pathways, approaches essential for helping mitigate the environmental and economic impacts of non-native fish introductions.</p>","PeriodicalId":175,"journal":{"name":"Global Change Biology","volume":"31 8","pages":""},"PeriodicalIF":12.0,"publicationDate":"2025-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/gcb.70451","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144897222","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
Rising Heat, Rising Risks: Understanding the Nexus of Marine Heatwaves, Fishing Dependence, and Vulnerability to Coastal Communities 气温上升,风险上升:了解海洋热浪、渔业依赖和沿海社区脆弱性之间的关系
IF 12 1区 环境科学与生态学
Global Change Biology Pub Date : 2025-08-25 DOI: 10.1111/gcb.70454
Sally C. Dowd, Ingrid van Putten, Lisa L. Colburn, Gretta T. Pecl, Bridget Mullany, Neil J. Holbrook, Alistair J. Hobday, Janet A. Nye
{"title":"Rising Heat, Rising Risks: Understanding the Nexus of Marine Heatwaves, Fishing Dependence, and Vulnerability to Coastal Communities","authors":"Sally C. Dowd,&nbsp;Ingrid van Putten,&nbsp;Lisa L. Colburn,&nbsp;Gretta T. Pecl,&nbsp;Bridget Mullany,&nbsp;Neil J. Holbrook,&nbsp;Alistair J. Hobday,&nbsp;Janet A. Nye","doi":"10.1111/gcb.70454","DOIUrl":"https://doi.org/10.1111/gcb.70454","url":null,"abstract":"<div>\u0000 \u0000 <p>Marine heatwaves are increasing in frequency, intensity, and duration as a result of climate change, and their biological impacts can in turn influence coastal communities. Despite advances in our knowledge of the physical drivers of marine heatwaves and their biological impacts, there has been limited work linking these extreme events to subsequent impacts on social systems. Describing risk to well-being in coastal communities from marine heatwaves requires the consideration of the severity of marine heatwaves, impacted systems, and social vulnerability. We compared potential risk to well-being, or quality of life, from 2012 to 2016 in coastal communities in the United States and Australia by considering marine heatwave total cumulative intensity, fishing dependence, and vulnerability indices. We extended a social indicators framework for the United States to develop vulnerability indices for coastal communities in Australia. Our approach revealed different spatial patterns in risk to well-being and its drivers between the two countries. Marine heatwaves as the hazard were a key driver of risk in both countries, and vulnerability for the United States and fishing employment for Australia were also influential. Our study demonstrates that risk does not necessarily equal the hazard, and there is non-transferability of risk results between countries despite similar physical oceanography and socioeconomic status. Identifying regions of high risk with our broad approach can help prioritize higher resolution community-level work to mitigate risk and develop adaptation pathways.</p>\u0000 </div>","PeriodicalId":175,"journal":{"name":"Global Change Biology","volume":"31 8","pages":""},"PeriodicalIF":12.0,"publicationDate":"2025-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144897221","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
Correction to “Unfolding the Potential of Soil Microbial Community Diversity for Accumulation of Necromass Carbon at Large Scale” 对“揭示土壤微生物群落多样性对大规模坏死体碳积累的潜力”的更正
IF 12 1区 环境科学与生态学
Global Change Biology Pub Date : 2025-08-25 DOI: 10.1111/gcb.70473
{"title":"Correction to “Unfolding the Potential of Soil Microbial Community Diversity for Accumulation of Necromass Carbon at Large Scale”","authors":"","doi":"10.1111/gcb.70473","DOIUrl":"https://doi.org/10.1111/gcb.70473","url":null,"abstract":"<p>Yang Y, Gunina A, Chen J, Wang B, Cheng H, Wang Y, Liang C, An S, Chang SX, Delgado-Baquerizo M. (2025). Unfolding the Potential of Soil Microbial Community Diversity for Accumulation of Necromass Carbon at Large Scale. Global Change Biology, 31(6): e70292. https://doi.org/10.1111/gcb.70292.</p><p>In the original version of this article, Manuel Delgado-Baquerizo has been wrongly included in the author list. Manuel Delgado-Baquerizo confirms that he has not contributed to this article and does not want to be associated with this article. The authors have added him and his institution without any permission.</p><p>They apologize for this error.</p>","PeriodicalId":175,"journal":{"name":"Global Change Biology","volume":"31 8","pages":""},"PeriodicalIF":12.0,"publicationDate":"2025-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/gcb.70473","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144897360","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 Change Is Altering Ecosystem Water Use Efficiency in Water-Limited Ecosystems 气候变化正在改变水资源有限生态系统的生态系统用水效率
IF 12 1区 环境科学与生态学
Global Change Biology Pub Date : 2025-08-25 DOI: 10.1111/gcb.70459
Tristan Green, Guido Salvucci, Mark A. Friedl
{"title":"Climate Change Is Altering Ecosystem Water Use Efficiency in Water-Limited Ecosystems","authors":"Tristan Green,&nbsp;Guido Salvucci,&nbsp;Mark A. Friedl","doi":"10.1111/gcb.70459","DOIUrl":"https://doi.org/10.1111/gcb.70459","url":null,"abstract":"<div>\u0000 \u0000 <p>Dryland ecosystems are expected to expand globally as a result of rising atmospheric water demand and vapor pressure deficit. However, the nature and magnitude of how water-limited ecosystems are adapting to increases in aridity is unclear. Here we examine changes in ecosystem water use efficiency (WUE), defined as the ratio of gross primary productivity (GPP) to evapotranspiration (ET), in global water-limited regions over the past two decades. Our analysis uses remotely sensed data, process-based models, and reanalysis datasets to quantify changes in WUE and examine the role that changes in atmospheric CO<sub>2</sub>, atmospheric water demand, and soil moisture exert on WUE dynamics in water-limited ecosystems. Our results show that on average WUE increased by 17% in water-limited regions worldwide. Asia, North America, and Africa showed the largest increases in WUE (24%, 17%, and 17%, respectively), followed by Europe, South America, and Oceania (15%, 10%, and 9%, respectively). Ecosystems with low mean annual WUE showed the largest increases of WUE. CO<sub>2</sub> fertilization from increasing atmospheric CO<sub>2</sub> concentrations was the dominant driver behind observed changes in WUE, especially in the Northern Hemisphere. Our findings indicate that vegetation in water-limited ecosystems is adapting to climate change by optimizing water use efficiency but also suggest that the ability of many ecosystems to adapt may decrease as they become drier.</p>\u0000 </div>","PeriodicalId":175,"journal":{"name":"Global Change Biology","volume":"31 8","pages":""},"PeriodicalIF":12.0,"publicationDate":"2025-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144894374","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
Indigenous Fire Stewardship to Revitalize Disrupted Ecosystems 土著消防管理振兴被破坏的生态系统
IF 12 1区 环境科学与生态学
Global Change Biology Pub Date : 2025-08-22 DOI: 10.1111/gcb.70411
Jonathan W. Long, Don L. Hankins, Melinda M. Adams
{"title":"Indigenous Fire Stewardship to Revitalize Disrupted Ecosystems","authors":"Jonathan W. Long,&nbsp;Don L. Hankins,&nbsp;Melinda M. Adams","doi":"10.1111/gcb.70411","DOIUrl":"https://doi.org/10.1111/gcb.70411","url":null,"abstract":"<p>This commentary highlights the significance of Bowd et al.'s (2025) study with Wiradjuri and Ngunnawal community members in quantifying the effects of Indigenous Fire Stewardship on plant biocultural diversity in southeastern Australia's box-gum grassy woodlands. Their work is a model for bridging ecological science and Indigenous stewardship in restoring fire-adapted ecosystems. Accelerating and scaling such efforts can counter the disruption of Indigenous practices, the spread of nonnative species, the intensification of wildfires, and other global changes.\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":175,"journal":{"name":"Global Change Biology","volume":"31 8","pages":""},"PeriodicalIF":12.0,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/gcb.70411","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144885341","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
Significant Impact of UV Exposure on Litter Decomposition Across Diverse Climate Zones 不同气候区紫外光照射对凋落物分解的显著影响
IF 12 1区 环境科学与生态学
Global Change Biology Pub Date : 2025-08-22 DOI: 10.1111/gcb.70456
Sen Yang, Zhou Jia, Pengfei Chang, Yuntao Wu, Junsheng Huang, Jing Wang, Meifeng Deng, Jiao Su, Songbai Hong, Yue He, Juntao Zhu, Pujin Zhang, Yang Wang, Xiaowei Guo, Zhenhua Zhang, Yangjian Zhang, Shuijin Hu, Jinsheng He, Shilong Piao, Lingli Liu
{"title":"Significant Impact of UV Exposure on Litter Decomposition Across Diverse Climate Zones","authors":"Sen Yang,&nbsp;Zhou Jia,&nbsp;Pengfei Chang,&nbsp;Yuntao Wu,&nbsp;Junsheng Huang,&nbsp;Jing Wang,&nbsp;Meifeng Deng,&nbsp;Jiao Su,&nbsp;Songbai Hong,&nbsp;Yue He,&nbsp;Juntao Zhu,&nbsp;Pujin Zhang,&nbsp;Yang Wang,&nbsp;Xiaowei Guo,&nbsp;Zhenhua Zhang,&nbsp;Yangjian Zhang,&nbsp;Shuijin Hu,&nbsp;Jinsheng He,&nbsp;Shilong Piao,&nbsp;Lingli Liu","doi":"10.1111/gcb.70456","DOIUrl":"https://doi.org/10.1111/gcb.70456","url":null,"abstract":"<div>\u0000 \u0000 <p>Litter decomposition is a critical biogeochemical process for carbon and nutrient cycling in terrestrial ecosystems. Ultraviolet (UV) radiation has been recognized to accelerate litter-derived C release in arid and semi-arid ecosystems; yet its spatial controls on determining the regional pattern of litter decomposition are poorly explored. Moreover, the limited understanding of how UV radiation interacts with traditional decomposition drivers, such as climate and litter quality, significantly restricts our ability to accurately quantify the contribution of UV-driven photodegradation to large-scale carbon turnover. In this study, we established a coordinated, distributed UV-manipulation network, spanning 3500-km and covering four grassland ecosystem types, to assess the impact of UV radiation on litter decomposition across gradients of aridity, UV dose, and litter lignin/N ratio. With a modified modeling approach, we further quantified the contribution of UV radiation to litter layer decomposition across temperate grasslands in China. After more than three years in the field, we found that UV attenuation reduced litter mass loss across climatic gradients. The UV-induced facilitation effect primarily occurs in the latter stages of decomposition. The strength of photochemical degradation increased with higher cumulative UV dose, amplified by environmental aridity and litter lignin/N ratio. Across Chinese temperate grasslands, UV exposure shortens mean residence time (MRT) of litter layer by 0.40 years, representing a 16.85% reduction. Hotspots, where UV reduces MRT by over a year, are primarily located in arid and high-altitude grasslands. The sensitivity analysis indicates that the vulnerability of grassland litter decomposition to UV fluctuations intensifies as environmental aridity increases. These findings reveal the pervasiveness of UV-driven litter photodegradation across diverse grasslands and provide a comprehensive framework to improve the predictability of litter-originated C turnover in dryland ecosystems, enabling more constrained projections of terrestrial carbon-climate feedbacks in the context of global UV fluctuations and aridification.</p>\u0000 </div>","PeriodicalId":175,"journal":{"name":"Global Change Biology","volume":"31 8","pages":""},"PeriodicalIF":12.0,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144888327","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
The Emergence and Promise of Functional Chemogeography of Organic Matter 有机物质功能化学地理学的出现与前景
IF 12 1区 环境科学与生态学
Global Change Biology Pub Date : 2025-08-22 DOI: 10.1111/gcb.70435
Ang Hu, James Stegen, Andrew J. Tanentzap, Jianjun Wang
{"title":"The Emergence and Promise of Functional Chemogeography of Organic Matter","authors":"Ang Hu,&nbsp;James Stegen,&nbsp;Andrew J. Tanentzap,&nbsp;Jianjun Wang","doi":"10.1111/gcb.70435","DOIUrl":"https://doi.org/10.1111/gcb.70435","url":null,"abstract":"<p>Organisms in ecosystems continuously release a myriad of organic matter molecules that undergo microbial and abiotic transformation, processes that critically influence carbon storage and climate feedbacks. Yet, a systematic understanding of what determines the transformation and persistence of organic matter across spatiotemporal scales remains elusive. We propose an emerging framework, termed “functional chemogeography,” to understand transformation and persistence of organic matter based on the chemical traits of molecules. This framework extends beyond a sole focus on intrinsic traits, which remain relatively constant across spatiotemporal scales, to emphasize extrinsic traits such as biochemical transformations and environmental responses, which vary spatiotemporally and are shaped by both intrinsic traits and the environment. When upscaled to the assemblage level using functional diversity indices, these extrinsic traits reveal a significant, and in some cases superior, capacity than intrinsic traits to explain biogeochemical processes, as demonstrated through a case study of dissolved organic matter in China's lakes. By integrating trait-based perspectives into predictive models, this framework helps bridge chemical complexity with ecosystem biogeochemistry, thereby advancing our ability to predict the fate of global organic carbon under environmental change.</p>","PeriodicalId":175,"journal":{"name":"Global Change Biology","volume":"31 8","pages":""},"PeriodicalIF":12.0,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/gcb.70435","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144885342","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
Human-Impacted Natural Ecosystems Drive Climate Warming 人类影响的自然生态系统导致气候变暖
IF 12 1区 环境科学与生态学
Global Change Biology Pub Date : 2025-08-21 DOI: 10.1111/gcb.70449
Ülo Mander, Jaan Pärn, Mikk Espenberg, Josep Peñuelas
{"title":"Human-Impacted Natural Ecosystems Drive Climate Warming","authors":"Ülo Mander,&nbsp;Jaan Pärn,&nbsp;Mikk Espenberg,&nbsp;Josep Peñuelas","doi":"10.1111/gcb.70449","DOIUrl":"https://doi.org/10.1111/gcb.70449","url":null,"abstract":"<p>Current greenhouse gas budgets do not account for most indirect anthropogenic impacts. In this perspective, we call for attention to greenhouse gas fluxes from human-impacted natural ecosystems and their mitigation measures. The article highlights the increasing greenhouse gas (GHG) emissions from natural ecosystems, including CO<sub>2</sub>, CH<sub>4</sub>, and N<sub>2</sub>O. These emissions are becoming significant drivers of global warming, surpassing those from fossil fuel combustion. We introduce the concept of “anthro-natural emissions” on the example of peatlands, referring to emissions from natural ecosystems indirectly impacted by human activities. The concept helps bridge the gap between natural and anthropogenic impacts, providing a more comprehensive understanding of GHG emissions. Anthro-natural emissions are expected to rise as climate warming progresses, contributing to the overall GHG balance. Peatlands, which store approximately 30% of the world's soil carbon, are under increasing pressure from climate warming and human activities. The article emphasizes the importance of addressing both natural and human-impacted ecosystems to mitigate climate change effectively. Increasingly frequent droughts are identified as a major threat to global terrestrial ecosystems, particularly wetlands. The drying of wetlands challenges their capacity to act as carbon sinks and alters their roles in climate regulation. The insights provided are essential for developing effective adaptation strategies relying on soil carbon sequestration as a long-term solution against climate warming. According to our study, the proportion of natural, anthro-natural, and directly disturbed peatlands is approximately 40–20–40, and the ratio is increasing towards anthro-natural peatlands. We highlight a change of paradigm for assessing the importance of different GHG sources. Further, it highlights the need for conservation and restoration of peatlands and renaturalization of forest ecosystems.</p>","PeriodicalId":175,"journal":{"name":"Global Change Biology","volume":"31 8","pages":""},"PeriodicalIF":12.0,"publicationDate":"2025-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/gcb.70449","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144881186","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
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