Global Warming

全球变暖
  • 文章类型: Journal Article
    烟草(烟草)具有极高的经济价值,药用价值,科学研究价值和其他一些用途。虽然它已经在世界各地广泛种植,其适宜栖息地的分类和变化尚不清楚,尤其是在全球变暖的背景下。为了实现烟草的合理种植和可持续发展,利用MaxEnt模型和ArcGIS平台,根据854个发生数据和22个环境因素,预测了烟草的当前(1970-2000年的平均值)和未来(2070年,2061-2080年的平均值)潜在适宜生境。结果显示,最温暖的四分之一(bio10)的平均温度,年降水量(生物12),9月的太阳辐射(Strad9),和粘土含量(粘土)是烟草分布的四个决定性环境变量。在当前的气候条件下,烟草的适宜生境主要分布在欧洲中南部,北美洲中南部,南美洲的大部分地区,中部非洲,南亚和东南亚,和澳大利亚的东南海岸,这些地区只有13.7%是高度适宜的。到2070年,SSP1-2.6,SSP3-7.0和SSP5-8.5气候情景下的合适栖息地都将以SSP3-7.0情景下的最大增幅增加,而在SSP2-4.5气候情景下,合适的栖息地会减少。全球范围内,在四种不同的气候情景下,利比亚境内适宜栖息地的质心将不同程度地向东南迁移。在每种气候情景下,新生境的出现和旧生境的消失都会同时发生,以及每个领域的具体变化,结合当前气候条件下的预测结果,将为当前和今后烟草农艺措施的调整和合理栽培提供重要参考。
    Nicotiana tabacum L. (tobacco) has extremely high economic value, medicinal value, scientific research value and some other uses. Though it has been widely cultivated throughout the world, classification and change of its suitable habitats is not that clear, especially in the context of global warming. In order to achieve rational cultivation and sustainable development of tobacco, current (average from 1970-2000) and future (2070, average from 2061-2080) potential suitable habitats of Nicotiana tabacum L. were forecasted with MaxEnt model and ArcGIS platform based on 854 occurrence data and 22 environmental factors in this study. The results revealed that mean temperature of warmest quarter (bio10), annual precipitation (bio12), solar radiation in September (Srad9), and clay content (CLAY) were the four decisive environment variables for the distribution of Nicotiana tabacum L. Under current climate conditions, suitable habitats of Nicotiana tabacum L. were mainly distributed in south-central Europe, south-central North America, most parts of South America, central Africa, south and southeast Asia, and southeast coast of Australia, and only 13.7% of these areas were highly suitable. By the year 2070, suitable habitats under SSP1-2.6, SSP3-7.0, and SSP5-8.5 climate scenarios would all increase with the largest increase found under SSP3-7.0 scenario, while suitable habitats would reduce under SSP2-4.5 climate scenario. Globally, the center of mass of suitable habitats would migrate to southeast to varying degrees within Libya under four different climate scenarios. The emergence of new habitats and the disappearance of old habitats would all occur simultaneously under each climate scenario, and the specific changes in each area, combined with the prediction results under current climate conditions, will provide an important reference for the adjustment of agronomic practices and rational cultivation of Nicotiana tabacum L. both currently and in the future.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

  • 文章类型: Journal Article
    全球变暖,由温室气体排放引起的,是所有人类社会面临的重大挑战。确保实现雄心勃勃的碳中和和可持续经济发展目标,必须研究区域人类活动及其对碳排放的影响。贵州省是中国典型的岩溶地区,主要使用化石燃料。在这项研究中,反向传播(BP)神经网络和极限学习机(ELM)模型,由于其非线性处理,这是有利的,对贵州省2020-2040年的碳排放量进行了预测。使用转换和清单编制方法与能源消耗数据计算碳排放量,结果显示“S”增长趋势。选择12个影响因素,然而,利用灰色关联分析方法筛选出5个关联度较大的指标。建立了贵州省碳排放预测模型。发现鲸鱼优化算法(WOA)-ELM模型的预测性能高于BP神经网络和ELM模型。基线,高速,利用WOA-ELM模型对辽宁省2020-2040年碳排放峰值的大小和时间进行了预测。
    Global warming, caused by greenhouse gas emissions, is a major challenge for all human societies. To ensure that ambitious carbon neutrality and sustainable economic development goals are met, regional human activities and their impacts on carbon emissions must be studied. Guizhou Province is a typical karst area in China that predominantly uses fossil fuels. In this study, a backpropagation (BP) neural network and extreme learning machine (ELM) model, which is advantageous due to its nonlinear processing, were used to predict carbon emissions from 2020 to 2040 in Guizhou Province. The carbon emissions were calculated using conversion and inventory compilation methods with energy consumption data and the results showed an \"S\" growth trend. Twelve influencing factors were selected, however, five with larger correlations were screened out using a grey correlation analysis method. A prediction model for carbon emissions from Guizhou Province was established. The prediction performance of a whale optimization algorithm (WOA)-ELM model was found to be higher than the BP neural network and ELM models. Baseline, high-speed, and low-carbon scenarios were analyzed and the size and time of peak carbon emissions in Liaoning Province from 2020 to 2040 were predicted using the WOA-ELM model.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

  • 文章类型: Journal Article
    底栖鞭毛藻链球菌的报道。在过去的几十年里一直在增加,尤其是在温带地区。在全球变暖的背景下,海水温度升高对其生理和分布的影响的证据仍然缺乏,需要进行研究。在这项研究中,温度对生长的影响,对几种O.cf菌株的生态生理学和毒性进行了评估。来自比斯开湾(东北大西洋)和O.cf.ovata来自地中海西北部。将培养物适应14.5°C至32°C的温度范围,以研究每个特定菌株的热生态位的整个范围。对于O的温度范围从14.5°C到25°C,适应是成功的。参见siamensis和从19°C到32°C的O.cf.ovata,在22°C(0.54-1.06d-1)和28°C(0.52-0.75d-1)时测得的最高增长率,分别。对色素和脂质的细胞含量的分析揭示了链球菌细胞热适应过程的某些方面。O.cf的特定能力。siamensis应对寒冷温度的压力与基于二羟黄酮的叶黄素循环的激活有关。脂质(中性储备脂质和极性脂质)也揭示了物种特异性变异,在极端温度条件下,细胞含量增加。通过卤虫生物测定法评估了毒性的变化。对于这两个物种来说,当温度下降到生长的最佳温度以下时,观察到毒性降低。在O.cf中没有检测到PLTX样化合物。暹罗菌株。因此,对A.franciscana的致死作用的主要部分取决于目前未知的化合物。从多克隆方法来看,这项工作允许定义O.cf的热生态位和适应策略的特殊性。siamensis和O.cf.Ovata对温度。进一步讨论了气候变化对西北地中海和东北大西洋沿岸与链球菌水华相关的毒性风险的潜在影响。考虑到地理分布的变化,每个物种的生长能力和毒性。
    Reports of the benthic dinoflagellate Ostreopsis spp. have been increasing in the last decades, especially in temperate areas. In a context of global warming, evidences of the effects of increasing sea temperatures on its physiology and its distribution are still lacking and need to be investigated. In this study, the influence of temperature on growth, ecophysiology and toxicity was assessed for several strains of O. cf. siamensis from the Bay of Biscay (NE Atlantic) and O. cf. ovata from NW Mediterranean Sea. Cultures were acclimated to temperatures ranging from 14.5 °C to 32 °C in order to study the whole range of each strain-specific thermal niche. Acclimation was successful for temperatures ranging from 14.5 °C to 25 °C for O. cf. siamensis and from 19 °C to 32 °C for O. cf. ovata, with the highest growth rates measured at 22 °C (0.54-1.06 d-1) and 28 °C (0.52-0.75 d-1), respectively. The analysis of cellular content of pigments and lipids revealed some aspects of thermal acclimation processes in Ostreopsis cells. Specific capacities of O. cf. siamensis to cope with stress of cold temperatures were linked with the activation of a xanthophyll cycle based on diadinoxanthin. Lipids (neutral reserve lipids and polar ones) also revealed species-specific variations, with increases in cellular content noted under extreme temperature conditions. Variations in toxicity were assessed through the Artemia franciscana bioassay. For both species, a decrease in toxicity was observed when temperature dropped under the optimal temperature for growth. No PLTX-like compounds were detected in O. cf. siamensis strains. Thus, the main part of the lethal effect observed on A. franciscana was dependent on currently unknown compounds. From a multiclonal approach, this work allowed for defining specificities in the thermal niche and acclimation strategies of O. cf. siamensis and O. cf. ovata towards temperature. Potential impacts of climate change on the toxic risk associated with Ostreopsis blooms in both NW Mediterranean Sea and NE Atlantic coast is further discussed, taking into account variations in the geographic distribution, growth abilities and toxicity of each species.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

    求助全文

  • 文章类型: Journal Article
    ESG投融资是应对全球变暖和有毒碳排放的对策。这是因为市场和金融发展预计将有助于相关公司的去碳化。然而,碳密集型产业可能会出现相反的情况。一种选择是引入碳税或排放上限,但这因国家而异。因此,环境政策的影响和金融市场的发展是有关减少污染的最佳途径的辩论中需要分析的相关因素。这种影响在现有研究中还没有定论。为了弥补这一差距,并为这一问题设计有效的解决方案,它们背后的机制需要经验上的澄清。为了实现这一研究目标,这项研究分析了这些因素通过污染和增长对福利的影响。它审查了环境税和排放配额的各自监管制度,使用具有货币成分的基于研发的增长模型。这是为了确定污染排放与金融市场之间的关系。结果表明,增加环境税和降低名义利率实际上确实会导致污染减少和经济增长。以及通过通货紧缩增加货币和信贷数量。减少排放配额也有类似的效果。然而,在排放配额下,发现名义利率的降低既不影响污染排放,也不影响经济增长,虽然它确实影响了货币和信贷的数量。这是因为当排放配额限制输出时,费雪效应消失。排放配额和信贷数量之间的U形关系就会出现。在排放交易体系下,污染排放与金融发展之间的关系可以是双赢关系或权衡关系。这取决于排放配额和名义利率。这些结果表明,除了环境政策工具,如果有正确的环境金融政策,金融市场的发展可以促进脱碳。因此,环境和金融政策的结合对于将金融市场发展与脱碳联系起来非常重要。
    ESG investment and financing is a response to global warming and toxic carbon emissions. This is because market and financial development is expected to contribute to de-carbonisation in relevant firms. However, the opposite might occur with carbon-intensive industries. An option is to introduce a carbon tax or an emissions cap but this varies across countries. The impact of environmental policies and the development of financial markets are thus relevant factors to analyse in the debate regarding the best pathways to reduce pollution. This impact is not conclusive in extant studies. In order to meet this gap and to devise effective solutions to this problem, the mechanisms behind them need to be empirically clarified. To achieve this research objective, this study analyses the impact of these factors on welfare through pollution and growth. It examines the respective regulatory regimes of environmental taxes and emission quotas, using an R&D-based growth model with a monetary component. This is to identify the relationship between pollution emissions and financial markets. Results reveal that increasing environmental taxes and reducing nominal interest rates does in fact lead to pollution reduction and economic growth, as well as an increase in the quantity of money and credit through deflation. Reducing emission allowances has a similar effect. However, under emission quotas, it is found that a reduction in the nominal interest rate affects neither pollution emissions nor economic growth, although it does affect the quantity of money and credit. This is because the Fisher effect disappears when the emission quota caps output. A U-shaped relationship between emission allowances and the amount of credit then arises. Under an emissions trading system, the relationship between pollution emissions and financial development can be a win-win relationship or a trade-off relationship. This depends on the emission quota and nominal interest rate. These results suggest that, in addition to environmental policy instruments, financial market development can contribute to decarbonisation if there is the right environmental financial policy. A mix of environmental and financial policies is thus important in linking financial market development to decarbonisation.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

    求助全文

  • 文章类型: Journal Article
    气候变暖是一个紧迫的全球性问题,对土壤健康和功能产生重大影响。然而,环境背景对土壤微生物对变暖反应的影响在很大程度上仍然难以捉摸,特别是在高山生态系统中。这项研究检查了土壤微生物组对三个海拔(3,850m,4,100米,和4,250m)在贡嘎山的草地上,青藏高原东部。我们的研究结果表明,土壤微生物多样性对气候变暖具有很强的抵抗力,仅在特定海拔观察到显著影响。此外,变暖对土壤微生物群落组成的影响也取决于海拔,强调在气候变暖的情况下,当地环境背景对塑造高寒土壤微生物进化的重要性。值得注意的是,我们确定了3,850m的土壤水分和4,250m的碳氮比作为间接预测因子,这些间接预测因子调节了特定海拔下微生物多样性对变暖的响应。这些发现强调了在预测高山土壤微生物对气候变暖的响应时,考虑预先存在的环境条件的重要性。我们的研究为气候变暖之间的复杂相互作用提供了新的见解,土壤微生物组,和高山生态系统的环境背景,阐明了在这些脆弱而敏感的环境中控制土壤微生物生态的复杂机制。
    Climate warming is a pressing global issue with substantial impacts on soil health and function. However, the influence of environmental context on the responses of soil microorganisms to warming remains largely elusive, particularly in alpine ecosystems. This study examined the responses of the soil microbiome to in situ experimental warming across three elevations (3850 m, 4100 m, and 4250 m) in the meadow of Gongga Mountain, eastern Tibetan Plateau. Our findings demonstrate that soil microbial diversity is highly resilient to warming, with significant impacts observed only at specific elevations. Furthermore, the influence of warming on the composition of the soil microbial community is also elevation-dependent, underscoring the importance of local environmental context in shaping microbial evolution in alpine soils under climate warming. Notably, we identified soil moisture at 3850 m and carbon-to-nitrogen ratio at 4250 m as indirect predictors regulating the responses of microbial diversity to warming at specific elevations. These findings underscore the paramount importance of considering pre-existing environmental conditions in predicting the response of alpine soil microbiomes to climate warming. Our study provides novel insights into the intricate interactions between climate warming, soil microbiome, and environmental context in alpine ecosystems, illuminating the complex mechanisms governing soil microbial ecology in these fragile and sensitive environments.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

    求助全文

  • 文章类型: Journal Article
    全球变暖导致的强降雨增加了滑坡的风险。生态友好的方法,比如使用植被,证明有效地满足了边坡工程中工程和环境考虑的要求。该研究旨在全面评估和比较环境,经济,和边坡稳定性新的稳定方法,包括植被覆盖,与传统的方法,如锚固和钉。该研究初步探索了各种几何形状的边坡的稳定性,确定容易发生边坡破坏的区域。随后,边坡稳定设计使用三种方法进行:植被,钉钉,和锚定。为了能够从环境和经济角度进行全面比较,进行了生命周期评估和寿命成本评估。根据结果,事实证明,采用植被可以有效地稳定较低高度的斜坡,特别是高达8米,导致光合作用导致的负碳排放,达到-249公斤二氧化碳。在中角范围内(30°≤θ≤60°),由于元素少,锚定排放的二氧化碳比钉少。随着倾斜角的增加,由于使用了碳排放量较低的材料和设备,因此钉法比锚固法更可取。在通过打钉和锚固进行边坡稳定期间,水泥和钢铁成为碳排放的主要贡献者。植被是最具成本效益的边坡稳定选择,与传统方法相比,成本可能降低250%。基于这项研究,在植物有效确保稳定性的特定条件下,植被成为一种生态友好且具有成本效益的边坡稳定替代品。关于使用锚定或钉钉的决定可以根据环境和经济方面做出,考虑坡度的几何形状。
    The heavy rainfall induced by global warming has increased the risk of landslides. Eco-friendly approaches, such as employing vegetation, prove effective in satisfying the requirements of both engineering and environmental considerations in slope engineering. The research aims to comprehensively assess and compare the environmental, economic, and slope stability of new stabilization methods, including vegetation cover, in comparison to conventional approaches such as anchorage and nailing. The research initially explored the stability of slopes in various geometries, identifying areas prone to slope failure. Subsequently, slope stabilization designs were implemented using three methods: vegetation, nailing, and anchoring. To enable a comprehensive comparison from environmental and economic perspectives, both life cycle assessment and life cost assessment were conducted. According to the results, employing vegetation proves effective in stabilizing slopes at lower heights, particularly up to 8 m, leading to a negative carbon emission attributed to photosynthesis, reaching up to -249 kg CO2. In the mid-angle range (30°≤ θ ≤ 60°), anchoring emits less carbon dioxide than nailing due to fewer elements. As the slope angle is increased, the nailing method becomes preferable to the anchoring method due to its use of materials and equipment with lower carbon emissions. During slope stabilization through nailing and anchoring, cement and steel emerge as the primary contributors to carbon emissions. Vegetation stands out as the most cost-effective slope stabilization option, with costs potentially reduced by 250% compared to conventional methods. Based on this research, vegetation emerges as an eco-friendly and cost-effective alternative for slope stabilization in particular conditions where plants effectively ensure stability. Decisions regarding the use of anchoring or nailing can be made based on environmental and economic aspects, considering the slope geometry.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

    求助全文

  • 文章类型: Journal Article
    生态系统碳储存(ECS)是减少全球变暖和应对环境挑战的关键考虑因素。将其定位在当代研究的前沿。由于各种政策背景下土地利用模式对ECS的影响存在显著差异,以及中国对实现碳中和地位的承诺,需要一个模拟不同情景的模型来准确分析陆地生态系统碳储量的时空特征和演化过程。为了应对这一挑战,本研究建立了“地理分析-进化分析-预测(GEP)”的耦合模型,用于评估生态系统ECS,分析其空间特征和进化模式,并预测各种发展情景下ECS的空间分布。它分析了ECS在不同量级水平上的变化,并在未来的一系列不同场景中描绘了变化的区域。结果表明,从1990年到2020年,ECS减少了1.17×106t,这与该地区土地的利用转移有关。其ECS水平的变化呈正趋势。预计ECS将增长1.15×106t和1.44×106t,在自然发展情景(NDS)框架内,2030年和2060年与2020年相比,而在生态保护场景(EPS)的框架内,ECS将显著增加,增加3.06×106t和4.44×106t。在EPS框架内,ECS增加的区域会更多,通过与NDS的比较。本研究全面分析了汉中市的碳储量变化趋势,证明其对减缓气候变化的重大影响,并作为类似地区的预测模型,这强调了本地化碳管理策略的重要性,为地方政府制定有效的气候适应和缓解政策提供有价值的见解。
    Ecosystem carbon storage (ECS) is a critical consideration in reducing the impact of global warming and tackling environmental challenges, positioning it at the forefront of contemporary research. Due to the significant differences in the influence of land usage patterns on ECS in various policy contexts and China\'s commitment to attaining a carbon-neutral status, a model simulating different scenarios is needed to analyze the spatiotemporal characteristics and evolutionary process of carbon storage in terrestrial ecosystems accurately. To address this challenge, this study established a coupling model of \"Geographical analysis -Evolution analysis -Predicting (GEP)\" for assessing ecosystem ECS and analyzing its spatial characteristics and evolutionary patterns and projecting the spatial distribution of ECS under various developmental scenarios, which analyzed variations in ECS across different levels of magnitude and delineated the changing areas across a range of varying scenarios in the future additionally. The outcomes suggested that the ECS decreased by 1.17 × 106 t from 1990 to 2020, which pertaining to the utilization transfer of land in the area, whose change in ECS levels with a positive trend. It is predicted that the ECS will grow by 1.15 × 106 t and 1.44 × 106 t, in 2030 and 2060 compared with 2020 within the framework of natural development scenario (NDS), while within the framework of ecological protection scene (EPS), ECS will increase significantly, increasing by 3.06 × 106 t and 4.44 × 106 t. There will be more areas where ECS increases within the framework of EPS, by comparing with the NDS. This study offers a comprehensive analysis of Hanzhong City\'s carbon storage trends, demonstrating its significant impact on climate change mitigation and serving as a predictive model for similar regions, which underscores the importance of localized carbon management strategies, offering valuable insights for local governments in formulating effective climate adaptation and mitigation policies.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

    求助全文

  • 文章类型: Journal Article
    预计全球气候变化和人为的寡营养化将重塑水生生态系统中初级生产(PP)的动态;然而,很少有研究探讨其长期影响。理论上,由于气候变暖,琵琶湖浮游植物的PP可能会在几十年内下降,加剧分层,和人为的寡营养。此外,大型浮游植物的PP,浮游动物不能食用,与生物量比生产率(PBc)一起,可以减少。在这项研究中,对1976年至2021年的数据以及2020年和2021年的主动荧光测量进行了评估。定量地,根据固碳率评估了1971-2021年平均季节性PP的时间动态,以研究环境因素之间的关系。定性,浮游植物生物量,PP,在2020年和2021年,以两种大小的分数[浮游动物的可食用(S)或不可食用(L)]测量了PBc,并在1992年(低温/高营养条件)和2020-2021年(高温/低营养条件)之间比较了这三种措施的L:S平衡,以评估季节性动态。结果表明,自1990年代以来,过去30年的气候变化和人为的寡营养化减少了琵琶湖的PP。影响PP动力学的物候。然而,PP和PBC中的L:S平衡在1992年和2020-2021年的数据之间表现出最小的变化。这些发现表明,尽管气候变化和寡营养化可能会降低整体PP,就PP和PBC而言,它们可能不会显着改变不可食用/可食用浮游植物的平衡。相反,随着总PP的下降,小型食用浮游植物的产量可能会按比例下降,可能影响琵琶湖的营养转移效率和物质循环。
    Global climate change and anthropogenic oligotrophication are expected to reshape the dynamics of primary production (PP) in aquatic ecosystems; however, few studies have explored their long-term effects. In theory, the PP of phytoplankton in Lake Biwa may decline over decades due to warming, heightened stratification, and anthropogenic oligotrophication. Furthermore, the PP of large phytoplankton, which are inedible to zooplankton, along with biomass-specific productivity (PBc), could decrease. In this study, data from 1976 to 2021 and active fluorometry measurements taken in 2020 and 2021 were evaluated. Quantitatively, the temporal dynamics of mean seasonal PP during 1971-2021 were assessed according to the carbon fixation rate to investigate relationships among environmental factors. Qualitatively, phytoplankton biomass, PP, and PBc were measured in two size fractions [edible (S) or inedible (L) for zooplankton] in 2020 and 2021, and the L:S balance for these three measures was compared between 1992 (low-temperature/high-nutrient conditions) and 2020-2021 (high-temperature/low-nutrient conditions) to assess seasonal dynamics. The results indicated that climate change and anthropogenic oligotrophication over the past 30 years have diminished Lake Biwa\'s PP since the 1990s, impacting the phenology of PP dynamics. However, the L:S balance in PP and PBc has exhibited minimal change between the data from 1992 and the 2020-2021 period. These findings suggest that, although climate change and oligotrophication may reduce overall PP, they may not markedly alter the inedible/edible phytoplankton balance in terms of PP and PBc. Instead, as total PP declines, the production of small edible phytoplankton may decrease proportionally, potentially affecting trophic transfer efficiency and material cycling in Lake Biwa.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

    求助全文

  • 文章类型: Journal Article
    全球变暖正在增加生态系统的脆弱性,尤其是在西班牙半岛。生物圈保护区是国际保护区,旨在保护生物多样性,同时,促进可持续发展。评估这些保护区对于验证环境变化并确定其管理重点至关重要。在这项工作中,我们研究了2001年至2016年西班牙高山生物圈保护区NDVI的时间趋势,以检查趋势模式是否与某些环境变量相关。NDVI趋势与高山生物圈保护区之间存在显着差异。首先,当一起分析两个储量时,观察到NDVI的显著正趋势。然而,两种储量之间存在显著差异。Ordesa-Viñamala保护区显示出较高的积极NDVI趋势和较低的消极趋势,而这种模式在内华达山脉是相反的。我们观察到气候变化引起的温度和干旱的波动已经对地中海保护区(内华达山脉)产生了负面影响。相比之下,高山保护区(Ordesa-Viñamala)保持积极的NDVI趋势。这项研究有助于缩小与生物圈保护区相关的信息差距,这给组成它们的当地社区正在开展的工作带来了价值,生物圈保护区是保护区,这有助于我们了解如何可持续地管理和治理社会生态系统。
    Global warming is increasing the vulnerability of ecosystems, especially in peninsular Spain. Biosphere Reserves are internationally protected areas that seek to protect biodiversity and, at the same time, promote sustainable development. Evaluating these protected areas is essential to verify environmental changes and establish priorities in their management. In this work, we have studied the time trends of NDVI in the high mountain Biosphere Reserves of Spain from 2001 to 2016 to check if the trend patterns are associated with some environmental variables. Significant differences were found between NDVI trends and high mountain Biosphere Reserves. Firstly, significant positive trends in NDVI were observed when analysing both reserves together. However, significant differences were found between the two reserves. The Ordesa-Viñamala Reserve shows higher positive NDVI trends and lower negative trends, while this pattern is reversed in Sierra Nevada. We observed how the fluctuations in temperature and drought due to climate change have already negatively affected the Mediterranean reserve (Sierra Nevada). In contrast, the alpine reserve (Ordesa-Viñamala) maintains positive NDVI trends. This study helps to close the gap in information related to Biosphere Reserves, which gives value to the work that is being carried out by the local communities that make up them, generating statistically significant results that Biosphere Reserves are protected areas that help us understand how to manage and govern socioecological systems sustainably.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

    求助全文

  • 文章类型: Journal Article
    环境问题,尤其是全球变暖,促使人们努力减少温室气体排放。医疗保健系统,包括麻醉实践,有助于这些排放。吸入麻醉药具有显著的环境影响,地氟醚是最令人担忧的,因为它具有很高的全球变暖潜力。这项研究旨在教育麻醉师吸入麻醉药对环境的影响,并评估意识和实践模式的变化。特别是减少地氟醚的使用。这项研究纳入了接受全麻手术的患者在接受吸入麻醉药对全球变暖影响的教育前后1个月的数据。主要终点是吸入麻醉药使用的变化。次要终点包括二氧化碳当量(CO2e)排放量的变化,驾驶等价物,和医疗费用。教育之后,地氟醚使用减少50%,而七氟醚的使用增加了50%。这种转变导致使用的吸入麻醉剂的总量减少。总CO2e和驱动当量值显着下降。每个麻醉病例的费用下降了,尽管程度低于预期。关于吸入麻醉药对环境的影响的教育已经成功地改变了麻醉医师的实践模式,导致地氟烷使用量减少。这一变化导致二氧化碳排放量减少,并对缓解全球变暖产生了积极影响。然而,需要进一步研究以评估这种教育的长期影响以及不同机构之间实践模式的差异。
    Environmental concerns, especially global warming, have prompted efforts to reduce greenhouse gas emissions. Healthcare systems, including anesthesia practices, contribute to these emissions. Inhalation anesthetics have a significant environmental impact, with desflurane being the most concerning because of its high global warming potential. This study aimed to educate anesthesiologists on the environmental impact of inhalation anesthetics and assess changes in awareness and practice patterns, specifically reducing desflurane use. This study included data from patients who underwent surgery under general anesthesia 1 month before and after education on the effects of inhalation anesthetics on global warming. The primary endpoint was a change in inhalational anesthetic use. Secondary endpoints included changes in carbon dioxide equivalent (CO2e) emissions, driving equivalent, and medical costs. After the education, desflurane use decreased by 50%, whereas sevoflurane use increased by 50%. This shift resulted in a reduction in the overall amount of inhalational anesthetics used. The total CO2e and driving-equivalent values decreased significantly. The cost per anesthesia case decreased, albeit to a lesser extent than expected. Education on the environmental impact of inhalation anesthetics has successfully altered anesthesiologists\' practice patterns, leading to reduced desflurane usage. This change has resulted in decreased CO2e emissions and has had a positive effect on mitigating global warming. However, further research is required to assess the long-term impact of such education and the variability in practice patterns across different institutions.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

公众号