环境科学与生态学最新文献

{"title":"Feedback inhibition derived from hydrogen sulfide in microbial sulfidogenic process via elemental sulfur disproportionation","authors":"Guijiao Zhang, Hao-Ran Xu, Wenwei Liao, Jia-Min Xu, Na Zhang, Daheng Ren, Xuchen Ba, Wenyan Mao, Wenke He, Cong Fang, Aijie Wang, Hao-Yi Cheng","doi":"10.1016/j.watres.2025.123740","DOIUrl":"https://doi.org/10.1016/j.watres.2025.123740","url":null,"abstract":"Elemental sulfur disproportionation (S⁰Disp), a key sulfidogenic process, has not only been known to play significant roles in biogeochemical sulfur cycles but has also received increasing attention in various wastewater treatment systems. For a sulfidogenic process, understanding the feedback inhibition (FBI) derived from the sulfide it produces is essential and fundamental, while this issue has yet to be systematically studied within the context of S⁰Disp. In this study, the FBI for S⁰Disp was investigated in <em>Desulfocapsa</em>-enriched mixed cultures. H₂S was identified as the form of sulfide to bring about the FBI directly, which has a half-maximal inhibitory concentration (IC₅₀-H₂S) and an almost complete inhibitory concentration (IC_threshold-H₂S) at 22 mg-S/L and 40 mg-S/L, respectively. The IC_threshold-H₂S was also found to be a critical concentration in governing the FBI from reversible to irreversible. Furthermore, based on the metatranscriptomic analysis, the possible metabolic pathways of S⁰Disp were proposed, implying the mechanism of H₂S-derived FBI may be involved in the deactivation of heme-functional enzymes (e.g., <em>dsrAB, qmoABC</em>, and <em>sox</em>) and the substrate (persulfide) deficiency of the <em>hdrABC</em>-catalyzed reaction. The findings of this study will not only help to better understand the S⁰Disp-involved natural water systems but can also guide the optimization of the S⁰Disp-related wastewater treatment systems.","PeriodicalId":443,"journal":{"name":"Water Research","volume":"7 1","pages":""},"PeriodicalIF":12.8,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143880903","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}

{"title":"Refining the approach: A critical reflection on applying the community capitals framework for site remediation","authors":"Federica Panzarella ,&nbsp;Catrinel Turcanu ,&nbsp;Bieke Abelshausen ,&nbsp;Valérie Cappuyns","doi":"10.1016/j.jenvman.2025.125530","DOIUrl":"10.1016/j.jenvman.2025.125530","url":null,"abstract":"","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"384 ","pages":"Article 125530"},"PeriodicalIF":8.0,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143878596","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

{"title":"Extreme Drought Increases the Temporal Variability of Grassland Productivity by Suppressing Dominant Grasses","authors":"Wentao Luo,&nbsp;Naohiro I. Ishii,&nbsp;Taofeek O. Muraina,&nbsp;Lin Song,&nbsp;Niwu Te,&nbsp;Robert J. Griffin-Nolan,&nbsp;Ingrid J. Slette,&nbsp;Samuel R. P. J. Ross,&nbsp;Takehiro Sasaki,&nbsp;Jennifer A. Rudgers,&nbsp;Melinda D. Smith,&nbsp;Alan K. Knapp,&nbsp;Scott L. Collins","doi":"10.1111/ele.70127","DOIUrl":"https://doi.org/10.1111/ele.70127","url":null,"abstract":"<div>\u0000 \u0000 <p>Extreme droughts are intensifying, yet their impact on temporal variability of grassland functioning and its drivers remains poorly understood. We imposed a 6-year extreme drought in two semiarid grasslands to explore how drought influences the temporal variability of ANPP and identify potential stabilising mechanisms. Drought decreased ANPP while increasing its temporal variability across grasslands. In the absence of drought, ANPP variability was strongly driven by the dominant plant species (i.e., mass-ratio effects), as captured by community-weighted traits and species stability. However, drought decreased the dominance of perennial grasses, providing opportunities for subordinate species to alter the stability of productivity through compensatory dynamics. Specifically, under drought, species asynchrony emerged as a more important correlate of ANPP variability than community-weighted traits or species stability. Our findings suggest that in grasslands, prolonged, extreme droughts may decrease the relative contribution of mass-ratio effects versus compensatory dynamics to productivity stability by reducing the influence of dominant species.</p>\u0000 </div>","PeriodicalId":161,"journal":{"name":"Ecology Letters","volume":"28 4","pages":""},"PeriodicalIF":7.6,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143880058","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}

{"title":"Towards Equity? Advancing Rural Consideration in Flood Risk Management","authors":"Daniel W. A. Jones,&nbsp;Fiona Williams,&nbsp;Namrata Bhattacharya Mis,&nbsp;Philip M. Marren","doi":"10.1111/jfr3.70055","DOIUrl":"https://doi.org/10.1111/jfr3.70055","url":null,"abstract":"<p>Flood risk management (FRM) in England and Wales predominantly follows a utilitarian approach guided by cost–benefit analysis, with a corresponding focus on urban areas. This approach has been criticised for being unjust, as it neglects vulnerabilities that cannot be readily monetised, resulting in some of the most vulnerable flood-affected communities being excluded from FRM provision. This issue is especially pronounced in rural areas. Ironically, rural communities are often overlooked despite many contributing to the protection of urban settlements. In response to increasing research on social injustices in FRM and policy calls for more equitable approaches, greater consideration of rural flooding is required. Using the River Severn catchment as a case study, this paper employs a questionnaire survey of 176 rural residents to gather perspectives on their engagement with FRM agencies. Their responses were then discussed with FRM organisations active in the region through interviews. The combined perspectives of rural communities and FRM organisations reveal challenges and opportunities for achieving just consideration of rural areas in FRM. The findings emphasise the need for a more inclusive approach to FRM in the River Severn catchment and offer valuable lessons for other rural areas in the United Kingdom and beyond.</p>","PeriodicalId":49294,"journal":{"name":"Journal of Flood Risk Management","volume":"18 2","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jfr3.70055","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143880078","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}

{"title":"Does wildfire severity reduce soil multifunctionality in the short-term? A matter of depth","authors":"Amara Santiesteban-Serrano ,&nbsp;Ana Rincón ,&nbsp;Cristina Aponte","doi":"10.1016/j.ecolind.2025.113500","DOIUrl":"10.1016/j.ecolind.2025.113500","url":null,"abstract":"<div><div>High-severity wildfires can alter soil properties through direct heat transfer and post-fire processes, yet soil has a high capacity to buffer these changes with depth. In this study, we assessed the short-term (three months post-fire) effects of a severe wildfire on soil functions in a <em>Pinus sylvestris</em> L. forest in Spain. Soil samples were collected at two depths (0–5 cm, 5–10 cm) from unburnt areas, areas burnt at low severity (intact canopies), and areas burnt at high severity (completely scorched canopies). High-severity plots were further categorized by slope (moderate/steep) to determine the potential synergistic effects of fire severity and slope. By measuring 24 soil indicators, we assessed key soil functions (e.g., carbon sequestration, soil fertility, nutrient cycling) and calculated the Effective Multifunctionality index (EMi) to capture the overall soil performance. Our results revealed that: (i) most soil functions drastically declined in the topsoil of burnt plots, but not so in the subsoil; (ii) fire reshaped the vertical stratification of soil indicators; (iii) no significant synergistic interactions were observed between high fire severity and steep slopes; (iv) the EMi, primarily driven by carbon sequestration, was significantly reduced by fire severity in the topsoil; (v) subsoil remained largely unaffected by fire. These findings underscore the short-term resilience of subsoil processes to high-severity wildfires, and highlight the importance of distinguishing aboveground fire severity from soil impacts. They also emphasize the need for targeted post-fire management strategies to support soil recovery and sustain ecosystem functionality.</div></div>","PeriodicalId":11459,"journal":{"name":"Ecological Indicators","volume":"175 ","pages":"Article 113500"},"PeriodicalIF":7.0,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143878613","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

{"title":"How many trees are there in the North American boreal forest?","authors":"Kun Xu, Jingye Li, Jian Zhang, Dingliang Xing, Fangliang He","doi":"10.1002/ecog.07677","DOIUrl":"https://doi.org/10.1002/ecog.07677","url":null,"abstract":"Boreal forests, the largest terrestrial biome on Earth, are highly varied in local tree density. Despite previous attempts to estimate tree density in boreal forests, the accuracy of the estimation is unknown, leaving the question how many trees there are in boreal forests largely unanswered. Here, we compiled tree density data from 4367 plots in North American boreal forest and developed tree height‐based generalized linear and machine learning models to address this question. We further produced the current boreal tree density map of North America, and projected tree density distribution in 2050 under the shared socioeconomic pathways (SSP) 126, 245 and 585 climate change scenarios. Our best‐performed and cross‐validated random forest model estimated a total of 277.2 (± 137.7 SD) billion trees in the North American boreal forest, 31.3% higher than the previously estimated 211.2 billion. Our projected tree density distributions in 2050 showed at least 11% increase in tree density in the region. This study improves our knowledge about boreal tree density and contributes to understanding the role of boreal forests in regulating forest ecosystem functions and informing adaptation and mitigation policy‐making. The projected warming‐induced increase in tree density suggests the potential of the North American boreal forest for carbon sequestration.","PeriodicalId":51026,"journal":{"name":"Ecography","volume":"24 1","pages":""},"PeriodicalIF":5.9,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143880469","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}

{"title":"Global phylogenetic and functional structure of rodent assemblages","authors":"Yoan Fourcade, Bader H. Alhajeri","doi":"10.1002/ecog.07534","DOIUrl":"https://doi.org/10.1002/ecog.07534","url":null,"abstract":"Exploring the global patterns of phylogenetic and functional structure of assemblages is key to describe the distribution of biodiversity on Earth and to predict how communities and ecosystem functioning may be affected by anthropogenic pressures. Rodent communities have been studied in this regard in the past, but previous work largely focused on desert ecosystems. Here, we leveraged a large database of rodent range maps, functional traits, and phylogenetic trees to compute several metrics of functional and phylogenetic structure across &gt; 10 000 rodent assemblages spanning all terrestrial biomes. We found that the vast majority of assemblages did not significantly differ from random association among species. Importantly, we show that the current patterns we observed can locally differ from past community structure, revealing the role humans have played in altering large‐scale biodiversity patterns. We also showed a strong scale‐dependence of our metrics and revealed a weak correlation between phylogenetic and functional structure, providing an additional line of evidence that they do not reflect the same processes of community assembly.","PeriodicalId":51026,"journal":{"name":"Ecography","volume":"219 1","pages":""},"PeriodicalIF":5.9,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143880329","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}

{"title":"Advantages of the E-CMRSET model in unveiling evapotranspiration water consumption patterns in the inland river basin","authors":"Hongxin Liu ,&nbsp;Aihua Long ,&nbsp;Yongmin Yang ,&nbsp;Jiawen Yu","doi":"10.1016/j.jenvman.2025.125426","DOIUrl":"10.1016/j.jenvman.2025.125426","url":null,"abstract":"<div><div>Vegetation serves as a critical link between the hydrosphere, biosphere, and atmosphere, playing a vital role in the terrestrial water cycle. In arid and semi-arid regions, soil moisture stands out as the primary factor regulating evapotranspiration. Over the past two decades, the comprehensive management project in the Tarim River Basin (TRB, a typical case of an inland river basin in an arid area) has induced substantial changes in the underlying surface, marked by a significant increase in vegetation cover. This shift has the potential to escalate evapotranspiration, intensifying water-related challenges in the region. To assess landscape-scale evapotranspiration in TRB, we employed the enhanced CSIRO MODIS Reflectance-based Scaling EvapoTranspiration model (E-CMRSET), incorporating vegetation changes and soil moisture dynamics as new components. Our analysis delved into evapotranspiration variations across different vegetation types within the TRB. Subsequently, we evaluated the impact of these vegetation changes on regional-scale water consumption patterns. Comparative validation results highlight the superior overall performance of the E-CMRSET model in the TRB when compared to the original CMRSET model, ERA5-Land, PMLV2, EB-ET, and MOD16A2. Vegetation-induced alterations have significantly reshaped the spatiotemporal pattern of evapotranspiration. Notably, the expansion of farmland emerges as the primary contributor to the heightened basin-wide evapotranspiration. Areas surrounding artificial oases witness flourishing vegetation, resulting in a noteworthy increase in water consumption. In contrast, regions distant from human activity zones experience substantial reduction in vegetation, exacerbating encroachments on ecological water usage. Our research contributes valuable insights that can inform models and decision-making processes related to evapotranspiration in arid and semi-arid regions.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"384 ","pages":"Article 125426"},"PeriodicalIF":8.0,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143878350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

{"title":"Research on the role of bamboo species in the restoration of heavy metal-contaminated soil","authors":"Qin Cao ,&nbsp;Guang-Qian Gou ,&nbsp;Zhao-Xia Dai ,&nbsp;Ai-Juan Tan ,&nbsp;Gui-Li Yang","doi":"10.1016/j.jenvman.2025.125565","DOIUrl":"10.1016/j.jenvman.2025.125565","url":null,"abstract":"<div><div>Heavy metal contamination in the soil has become more serious due to the rapid development of the economy. P<strong>hytoremediation</strong> has evoked widespread curiosity in recent years due to its advantages in terms of being environmentally friendly and sustainable. However, there are few reports on the application of bamboo species in the field of phytoremediation, and a comprehensive overview of their potential for restoring contaminated soil by removing heavy metals is lacking. This paper incorporates existing research on bamboo species for the remediation of heavy metal-contaminated soils. It meticulously debates the physiological responses exhibited by bamboo species to heavy metal stress, encompassing growth and development responses, photosynthetic responses, and antioxidant system responses, among others. Furthermore, it elaborates on the capacity of bamboo for heavy metal accumulation and translocation, as well as their remarkable tolerance and detoxification mechanisms. This comprehensive analysis sheds light on the intricate interactions between bamboo and contaminated soil environments. Additionally, the paper summarizes various strategies for the remediation of heavy metal contamination using bamboo species. This review facilitates a more thorough exploration of the potential applications of bamboo species in the remediation of heavy metal-contaminated soils, offering a novel approach for soil environmental restoration.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"384 ","pages":"Article 125565"},"PeriodicalIF":8.0,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143878492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

{"title":"Spatial predictive modeling of soil organic carbon stocks in Norwegian forests","authors":"Andreas Hagenbo ,&nbsp;Lise Dalsgaard ,&nbsp;Marius Hauglin ,&nbsp;Stephanie Eisner ,&nbsp;Line Tau Strand ,&nbsp;O. Janne Kjønaas","doi":"10.1016/j.scitotenv.2025.179451","DOIUrl":"10.1016/j.scitotenv.2025.179451","url":null,"abstract":"<div><div>Boreal forest soils are a critical terrestrial carbon (C) reservoir, with soil organic carbon (SOC) stocks playing a key role in global C cycling. In this study, we generated high-resolution (16 m) spatial predictions of SOC stocks in Norwegian forests for three depth intervals: (1) soil surface down to 100 cm depth, (2) forest floor (LFH layer), and (3) 0–30 cm into the mineral soil.</div><div>Our predictions were based on legacy soil data collected between 1988 and 1992 from a subset (<em>n</em> = 1014) of National Forest Inventory plots. We used boosted regression tree models to generate SOC estimates, incorporating environmental predictors such as land cover, site moisture, climate, and remote sensing data. Based on the resulting maps, we estimate total SOC stocks of 1.57–1.87 Pg C down to 100 cm, with 0.55–0.66 Pg C stored in the LFH layer and 0.68–0.80 Pg C in the upper mineral soil. These correspond to average SOC densities of 15.3, 5.4, and 6.6 kg C m⁻², respectively.</div><div>We compared the predictive performance of these models with another set, supplemented by soil chemistry variables. These models showed higher predictive performance (<em>R</em>^<em>2</em> = 0.65–0.71) than those used for mapping (<em>R</em>^<em>2</em> = 0.44–0.58), suggesting that the mapping models did not fully capture environmental variability influencing SOC stock distributions. Within the spatial predictive models, Sentinel-2 Normalized Difference Vegetation Index, depth to water table, and slope contributed strongly, while soil nitrogen and manganese concentrations had major roles in models incorporating soil chemistry.</div><div>Prediction uncertainties were related to soil depth, soil types, and geographical regions, and we compared the spatial prediction against external SOC data. The generated maps of this offer a valuable starting point for identifying forest areas in Norway where SOC may be vulnerable to climate warming and management-related disturbances, with implications for soil CO₂ emissions.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"980 ","pages":"Article 179451"},"PeriodicalIF":8.2,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143879470","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}