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Reducing greenhouse gas emissions from North American soybean production 减少北美大豆生产的温室气体排放
IF 25.7 1区 环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES Pub Date : 2024-11-05 DOI: 10.1038/s41893-024-01458-9
Tomás Della Chiesa, Daniel Northrup, Fernando E. Miguez, Sotirios V. Archontoulis, Mitchell E. Baum, Rodney T. Venterea, Bryan D. Emmett, Robert W. Malone, Javed Iqbal, Magdalena Necpalova, Michael J. Castellano
The agricultural sector is responsible for substantial amounts of greenhouse gas emissions that exacerbate climate change. Such greenhouse gas emissions from upland crops are difficult to abate because they are dominated by nitrous oxide (N2O) production from soil processes. Strategies to reduce these emissions focus on N fertilizer management, and there is a widespread assumption that legume crops, which do not receive N fertilizer, emit little N2O. Here we show that this assumption is incorrect; approximately 40% of N2O emissions from the most extensive cropping system in North America—the maize–soybean rotation—occur during the soybean phase. Yet, due to the lack of N fertilizer input, opportunities for emissions abatement from the soybean phase are unclear. Using models of cropping systems, we developed a strategy that combines cover-crop management and earlier planting of extended growth soybean varieties to reduce emissions from soybean production by 33%. These practices, which complement N fertilizer management in maize, are widely accessible and represent an immediate, climate-smart strategy to reduce nitrous oxide emissions from soybean production, thus not only contributing to climate-change mitigation but also maintaining productivity while adapting to changing weather patterns. Soil processes involved in agricultural practices emit considerable levels of nitrous oxide, which detrimentally contribute to climate change. This study explores strategies to reduce nitrous oxide emissions while maintaining crop productivity in the US maize–soybean rotational cropping system.
农业部门对大量加剧气候变化的温室气体排放负有责任。这种来自旱地作物的温室气体排放很难减少,因为它们主要是由土壤过程产生的一氧化二氮(N2O)所主导。减少这些排放的策略集中在氮肥管理上,人们普遍认为,豆科作物不接受氮肥,排放的N2O很少。在这里,我们证明这种假设是不正确的;在北美最广泛的种植系统——玉米-大豆轮作中,大约40%的一氧化二氮排放发生在大豆生长阶段。然而,由于缺乏氮肥投入,从大豆期开始减排的机会尚不清楚。利用种植系统模型,我们制定了一项策略,将覆盖作物管理与延长生长大豆品种的早期种植相结合,将大豆生产中的排放减少33%。这些做法是对玉米氮肥管理的补充,可广泛获取,是减少大豆生产中氧化亚氮排放的一种即时的气候智能型战略,因此不仅有助于减缓气候变化,而且在适应不断变化的天气模式的同时保持生产力。涉及农业实践的土壤过程排放大量的一氧化二氮,这对气候变化有不利影响。本研究探讨了在保持美国玉米-大豆轮作系统作物生产力的同时减少一氧化二氮排放的策略。
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引用次数: 0
Community-based propagation to scale up educational innovations in sustainability 以社区为基础的宣传,扩大可持续发展方面的教育创新
IF 25.7 1区 环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES Pub Date : 2024-11-04 DOI: 10.1038/s41893-024-01446-z
Juliette N. Rooney-Varga, Florian Kapmeier, Charles Henderson, David N. Ford
Many high-quality educational innovations are freely available, and some are known to motivate evidence-based climate and sustainability action. Typically, efforts to propagate educational innovations rely on outreach and word-of-mouth diffusion, but these approaches tend to achieve little. We develop and analyse a dynamic computational model to understand why and to test other propagation strategies. Our analysis reveals that outreach has limited impact and does little to accelerate word-of-mouth adoption under conditions typical in higher education. Instead, we find that community-based propagation can rapidly accelerate adoption, as is also shown by a small number of successful real-world scaling efforts. This approach supports a community of ‘ambassadors’, facilitating and rewarding their sharing the innovation with potential adopters. Community-based propagation can generate exponential growth in adopters, rapidly outpacing outreach and word-of-mouth propagation. Without it, we are unlikely to rapidly scale the educational innovations needed to build urgently needed capacity in sustainability. Innovative educational methods can be difficult to spread across universities and instructors. This study examines the best routes to rapidly scale new methods in sustainability education.
许多高质量的教育创新是免费提供的,其中一些被认为能够推动以证据为基础的气候和可持续发展行动。通常,宣传教育创新的努力依赖于外展和口头传播,但这些方法往往收效甚微。我们开发并分析了一个动态计算模型,以了解原因并测试其他传播策略。我们的分析表明,在高等教育的典型情况下,外联的影响有限,对加速口碑采用的作用也很小。相反,我们发现基于社区的传播可以迅速加速采用,正如少数成功的现实扩展工作所表明的那样。这种方法支持一个“大使”社区,促进和奖励他们与潜在的采用者分享创新。以社区为基础的传播可以使采用者呈指数级增长,迅速超过外联和口头传播。没有它,我们就不可能迅速扩大教育创新的规模,以建立迫切需要的可持续性能力。创新的教育方法很难在大学和教师之间传播。本研究探讨了快速推广可持续发展教育新方法的最佳途径。
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引用次数: 0
Direct and efficient in situ rubidium extraction from potassium chloride salts 从氯化钾盐中直接高效地原位萃取铷
IF 25.7 1区 环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES Pub Date : 2024-11-01 DOI: 10.1038/s41893-024-01449-w
Xulong Chen, Wenping Hu
Rubidium (Rb) is a valuable rare alkali metal that plays a crucial role in various high-tech applications, but extracting Rb from conventional sources poses sustainability challenges. A considerable amount of Rb is found in potassium chloride (KCl) salts, which can serve as a sustainable source depending on the extraction methods. Current liquid-phase methods are problematic due to the low Rb/K separation factor and high consumption of energy, water and chemicals. Extracting Rb directly from solid KCl salts is a promising approach, but achieving efficient recovery remains a challenge. Here we propose a crystal ripening microextraction strategy that enables in situ extraction of Rb from solid KCl salts with high selectivity, simplicity and high efficiency. By applying this strategy, we recovered 92.37% of Rb from KCl salts with an initial Rb content of 113 ppm. Compared with liquid-phase extraction, our approach results in a 97.57% reduction in energy consumption, a 22.24% increase in recovery efficiency and a 13.46-fold higher Rb/K separation factor, which substantially enhance environmental and economic benefits. In addition, this approach is suitable for recovering other target metals needed for various industrial applications directly from different solid metallic salts, providing a pathway to improve the sustainability of critical metal supply. Sustainably extracting rubidium (Rb), a valuable critical metal, from alternative sources remains challenging. Here the authors report a crystal ripening microextraction strategy that allows efficient Rb extraction from potassium chloride salts, with large environmental and economic benefits.
铷(Rb)是一种珍贵的稀有碱金属,在各种高科技应用中发挥着至关重要的作用,但从传统资源中提取铷存在可持续性挑战。在氯化钾(KCl)盐中发现了相当数量的Rb,根据提取方法的不同,它可以作为一个可持续的来源。目前的液相法存在Rb/K分离系数低、能源、水和化学品消耗大等问题。从固体KCl盐中直接提取Rb是一种很有前途的方法,但如何实现有效的回收仍然是一个挑战。本文提出了一种晶体成熟微萃取策略,该策略可以高选择性、简单高效地从固体KCl盐中原位提取Rb。采用该策略,从初始Rb含量为113 ppm的KCl盐中回收了92.37%的Rb。与液相萃取法相比,能耗降低97.57%,回收率提高22.24%,Rb/K分离系数提高13.46倍,显著提高了环境效益和经济效益。此外,该方法适用于从不同的固体金属盐中直接回收各种工业应用所需的其他目标金属,为提高关键金属供应的可持续性提供了途径。铷是一种有价值的关键金属,从替代来源中可持续地提取铷仍然具有挑战性。在这里,作者报告了一种晶体成熟微萃取策略,可以有效地从氯化钾盐中提取Rb,具有很大的环境和经济效益。
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引用次数: 0
Pathways for sustainable coexistence with wildfires 与野火可持续共存的途径
IF 25.7 1区 环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES Pub Date : 2024-11-01 DOI: 10.1038/s41893-024-01460-1
David M. J. S. Bowman
Sustainable coexistence with wildfire requires overcoming vicious cycles that trap socio-ecological systems in maladaptive states. A carefully coordinated programme of innovation, education and governance, the ‘wildfire adaptation triad’, is essential for escaping maladaptation across national, community and individual scales.
与野火的可持续共存需要克服使社会生态系统陷入不适应状态的恶性循环。一个精心协调的创新、教育和治理项目,即“野火适应三位一体”,对于避免国家、社区和个人尺度上的适应不良至关重要。
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引用次数: 0
Greener sourcing of rubidium 更环保的铷来源
IF 25.7 1区 环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES Pub Date : 2024-11-01 DOI: 10.1038/s41893-024-01459-8
Lixi Chen, Shuao Wang
Alternative extraction methods are urgently needed for a sustainable supply of rubidium. Now research presents a ripening-coupled strategy for efficient rubidium extraction with low energy consumption.
为了保证铷的可持续供应,迫切需要替代的提取方法。目前,研究人员提出了一种低能耗、高效萃取铷的成熟耦合策略。
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引用次数: 0
Meeting the EAT-Lancet ‘healthy’ diet target while protecting land and water resources 在保护土地和水资源的同时,实现《EAT-Lancet》的“健康”饮食目标
IF 25.7 1区 环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES Pub Date : 2024-11-01 DOI: 10.1038/s41893-024-01457-w
Maria Cristina Rulli, Martina Sardo, Livia Ricciardi, Camilla Govoni, Nikolas Galli, Davide Danilo Chiarelli, Adam M. Komarek, Paolo D’Odorico
Healthy diets are known for their co-benefits of reducing environmental impacts and enabling the same agricultural resources to feed a larger human population. The EAT-Lancet (healthy reference) diet allows for compound benefits to human health and the ecosystem. It is unclear, however, to what extent the requirements of the EAT-Lancet diet may be sustainably met at the global scale. Here we combine a spatially distributed agro-hydrological model with a linear optimization analysis to relocate crops, minimizing, at the country scale, the irrigation-water consumption while improving the worldwide achievement of the EAT-Lancet nutritional goals. To that end, we define six dietary scenarios based on country-specific dietary habits from religion-related traditions, and existing livestock production systems, maintaining the same agricultural trade patterns (import–export relations). Our results suggest that an optimized global cropland allocation, and an adjustment in trade flows, would allow the global population to be fed with the EAT-Lancet diet, with a global reduction of the cultivated area of 37–40%, irrigation-water consumption of 78% (±3%), and unsustainably irrigated areas of 22%. The adoption of the EAT-Lancet diet increases the global food trade share of global food production, measured in kilocalories, from 25% (baseline) to 36% (±2%). The transition towards a sustainable food system that enhances the adoption of healthy diets globally is an urgent challenge. A study shows how the EAT-Lancet diet requirement could be met through sustainable agricultural strategies reducing land and water constraints.
众所周知,健康饮食具有减少环境影响和使同样的农业资源能够养活更多人口的共同效益。EAT-Lancet(健康参考)饮食为人类健康和生态系统带来了复合益处。然而,目前尚不清楚在全球范围内,EAT-Lancet饮食法的要求在多大程度上可以持续得到满足。在这里,我们将空间分布的农业水文模型与线性优化分析相结合,以重新安置作物,在国家范围内最大限度地减少灌溉用水量,同时提高全球实现EAT-Lancet营养目标的水平。为此,我们根据与宗教有关的传统和现有畜牧业生产系统的具体国家饮食习惯定义了六种饮食情景,并保持了相同的农业贸易模式(进出口关系)。我们的研究结果表明,优化全球耕地分配和调整贸易流量,将使全球人口采用EAT-Lancet饮食,全球耕地面积减少37-40%,灌溉水消耗减少78%(±3%),不可持续的灌溉区减少22%。采用EAT-Lancet饮食法使全球粮食贸易在全球粮食生产中所占的份额(以千卡为单位)从25%(基线)增加到36%(±2%)。向可持续粮食系统过渡,促进全球健康饮食的采用,是一项紧迫的挑战。一项研究表明,如何通过减少土地和水资源限制的可持续农业战略来满足EAT-Lancet饮食要求。
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引用次数: 0
Mainstreaming connectivity science in community-based fisheries management 将连通性科学纳入社区渔业管理主流
IF 25.7 1区 环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES Pub Date : 2024-10-30 DOI: 10.1038/s41893-024-01443-2
Luisa Fontoura, Joseph Maina, Adam Stow, Alifereti Tawake, Vera Horigue, Brian Stockwell
Functionally connected marine conservation areas are widely recognized as a cornerstone for successful biodiversity conservation outcomes and small-scale fisheries livelihoods. Incorporating fish species movement into fisheries community-based managed areas can catalyse greater conservation and socioeconomic benefits. However, significant gaps exist in aligning small-scale fisheries management with fish connectivity or movement patterns, which can optimize benefits along coral reef systems and associated coastal small-scale fisheries. Here we describe a translational framework that integrates evidence-based connectivity conservation into small-scale fisheries in community-based managed area settings while considering cumulative benefits over time and space to ensure long-term socioeconomic and environmental benefits across such systems. Reef fish species associated with small-scale coastal fisheries often have life histories that involve dispersal and migration. This Perspective provides a framework to incorporate such fish movement patterns or connectivity into sustainable fisheries management and conservation of coral reefs.
功能相连的海洋保护区被广泛认为是成功的生物多样性保护成果和小规模渔业生计的基石。将鱼种移动纳入以社区为基础的渔业管理区可以促进更大的保护和社会经济效益。然而,在将小规模渔业管理与鱼类连通性或运动模式相结合方面存在重大差距,这可以优化沿珊瑚礁系统和相关沿海小规模渔业的利益。在这里,我们描述了一个转化框架,该框架将基于证据的连通性保护整合到以社区为基础的管理区环境中的小规模渔业中,同时考虑随时间和空间的累积效益,以确保这些系统的长期社会经济和环境效益。与小规模沿海渔业有关的珊瑚鱼物种通常具有包括扩散和迁徙的生活史。本展望提供了一个框架,将这种鱼类运动模式或连通性纳入可持续渔业管理和珊瑚礁保护。
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引用次数: 0
Unearthing the role of soils in urban climate resilience planning 挖掘土壤在城市气候复原力规划中的作用
IF 25.7 1区 环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES Pub Date : 2024-10-28 DOI: 10.1038/s41893-024-01436-1
Monika Shankar, Melody Ng, Morgan Rogers, Elizabeth M. Cook, Dustin L. Herrmann, Kirsten Schwarz
Urban soils are often overlooked in climate resilience planning and policy. We advocate for a broader framing of urban soils within an equity-centred social ecological framework that acknowledges the role of soils as essential infrastructure and enhances investment to maximize their benefits towards resilient urban futures.
在气候适应性规划和政策中,城市土壤往往被忽视。我们主张在以公平为中心的社会生态框架内对城市土壤进行更广泛的框架设计,承认土壤作为重要基础设施的作用,并加强投资,以最大限度地发挥其效益,实现具有抗灾能力的城市未来。
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引用次数: 0
Biodiversity consequences of cropland abandonment 撂荒对生物多样性的影响
IF 25.7 1区 环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES Pub Date : 2024-10-28 DOI: 10.1038/s41893-024-01452-1
Christopher L. Crawford, R. Alex Wiebe, He Yin, Volker C. Radeloff, David S. Wilcove
Although cropland expansion continues in many regions, substantial areas of cropland have been abandoned in recent decades as a result of demographic, socioeconomic and technological changes. Variation among species and habitats and limited information on the nature and duration of abandonment have resulted in controversy over how abandonment affects biodiversity. Here, we use annual land-cover maps to estimate habitat changes for 1,322 bird and mammal species at 11 sites across four continents for 1987–2017. We find that most bird (62.7%) and mammal species (77.7%) gain habitat because of cropland abandonment, yet even more would have benefited (74.2% and 86.3%, respectively) if recultivation had not occurred. Furthermore, many birds (32.2%) and mammals (27.8%) experienced net habitat loss after accounting for agricultural conversion that occurred before or alongside abandonment. While cropland abandonment represents an important conservation opportunity, limiting recultivation and reducing additional habitat loss are essential if abandonment is to contribute to biodiversity conservation. Despite net cropland expansion in recent decades, substantial areas of cropland have been abandoned for a variety of socioeconomic reasons. This study evaluates the effects of such cropland abandonment on bird and mammal species across four continents.
尽管许多地区的耕地面积继续扩大,但近几十年来,由于人口、社会经济和技术变化,大量耕地已被放弃。物种和栖息地之间的差异以及关于遗弃的性质和持续时间的有限信息导致了关于遗弃如何影响生物多样性的争论。在这里,我们使用年度土地覆盖地图来估计1987-2017年四大洲11个地点的1322种鸟类和哺乳动物的栖息地变化。研究发现,由于退耕,鸟类(62.7%)和哺乳动物(77.7%)获得了栖息地,但如果不进行退耕,更多的鸟类(74.2%)和哺乳动物(86.3%)获得了栖息地。此外,许多鸟类(32.2%)和哺乳动物(27.8%)在考虑了放弃之前或与放弃同时发生的农业转化后经历了净栖息地丧失。虽然放弃耕地是一个重要的保护机会,但如果要促进生物多样性的保护,限制再种植和减少额外的栖息地丧失是必不可少的。尽管近几十年来耕地净扩张,但由于各种社会经济原因,大量耕地已被放弃。本研究评估了四大洲撂荒对鸟类和哺乳动物物种的影响。
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引用次数: 0
Author Correction: Effects of fishery bycatch-mitigation measures on vulnerable marine fauna and target catch
IF 25.7 1区 环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES Pub Date : 2024-10-28 DOI: 10.1038/s41893-024-01469-6
Cheng Huang, Jake Rice, Andries Richter, Kaiwen Zhou, Yi Wang, Chentao Wei, Emilio Pagani-Núñez, Philipp N. Maleko, Xiong Zhang, Tien Ming Lee, Yang Liu
{"title":"Author Correction: Effects of fishery bycatch-mitigation measures on vulnerable marine fauna and target catch","authors":"Cheng Huang, Jake Rice, Andries Richter, Kaiwen Zhou, Yi Wang, Chentao Wei, Emilio Pagani-Núñez, Philipp N. Maleko, Xiong Zhang, Tien Ming Lee, Yang Liu","doi":"10.1038/s41893-024-01469-6","DOIUrl":"10.1038/s41893-024-01469-6","url":null,"abstract":"","PeriodicalId":19056,"journal":{"name":"Nature Sustainability","volume":"8 1","pages":"121-121"},"PeriodicalIF":25.7,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41893-024-01469-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143121545","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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