Results 21 to 30 of about 1,246,214 (168)

Scaling from microsite to landscape to resolve litter decomposition dynamics in globally extensive drylands

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Decomposition is the transformation of dead organic matter into its inorganic constituents. In most biomes, decomposition rates can be accurately predicted with simple mathematical models, but these models have long under‐predicted decomposition in globally extensive ...
Heather L. Throop   +8 more
wiley   +1 more source

全球可再生能源发电减排技术及投资减排成效评估分析 [PDF]

open access: yes全球能源互联网, 2020
实现《巴黎协定》目标,电力部门面临巨大的减排压力和挑战。首先梳理提出电力部门减排技术总体框架;其次,分析全球及重点国家可再生能源发电减排路径,并提出可再生能源投资减排成效评估方法,分析全球及重点区域或国家2010—2018年间可再生能源投资减排成效;最后量化分析全球能源互联网情景下满足《巴黎协定》2 ℃温控目标的可再生能源投资需求。研究发现,全球可再生能源发展速度出现一定波动;水电单位投资减排成效显著高于其他可再生能源;为实现《巴黎协定》2 ℃温控目标,全球可再生能源累积投资需要达到19.3万亿美元 ...
张士宁   +6 more
doaj   +1 more source

Organ‐specific ozone and nitrogen legacies strengthen substrate control over litter decomposition

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Elevated tropospheric ozone (O3) and nitrogen (N) deposition are concurrent atmospheric changes that strongly influence terrestrial carbon cycling, yet their combined effects on below‐ground decomposition remain poorly understood.
Xiaofan Hou   +8 more
wiley   +1 more source

Alleviation of phosphorus rather than nitrogen limitation driven by permafrost and landscape effects on Dahurian larch forests

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Permafrost thaw is reshaping nutrient dynamics in boreal forests, but its impacts on tree nutrient limitation and functional strategies remain poorly understood. Clarifying these responses is crucial for predicting the response of boreal forests to climate change.
Qiyue Fu   +9 more
wiley   +1 more source

有源型柔性直流输电技术在全球能源互联网背景下的应用研究 [PDF]

open access: yes全球能源互联网, 2020
全球能源互联网是实现新能源资源在全球范围内合理配置和高效利用的重要发展方向。基于模块化多电平换流器(modular multilevel converter,MMC)的柔性直流输电技术凭借其可以为无源电网提供支撑和控制灵活的特点,正逐渐成为构建全球能源互联网的重要技术手段之一。对柔性直流输电技术在全球能源互联网背景下的应用进行了深入研究。首先梳理了柔性直流输电在全球能源互联网中的3种典型应用场景。接着利用PSCAD/EMTDC仿真研究了传统柔性直流在典型应用场景下的故障特性 ...
刘耀   +7 more
doaj   +1 more source

Comprehensive framework for assessing and optimizing existing research networks

open access: yesConservation Biology, EarlyView.
Abstract Conservation, monitoring, and research networks, or collections of ecological research sites unified under a common mission of data collection or a research mission, are essential infrastructure for understanding large landscapes. However, most networks developed opportunistically over decades rather than through systematic design, creating ...
Alyson East   +2 more
wiley   +1 more source

從臺灣大學生的跨文化經驗省思跨文化素養議題 A Reflection of Current Issues on Intercultural Competence from the Experiences of Taiwanese College Students

open access: yesJournal of Curriculum Studies, 2022
全球化使人類緊密相連,亦帶動文化間的碰撞,跨文化素養已是全球公民的基本素養。面對全球共同議題及漸趨多元的社會,臺灣人更應了解並具備跨文化素養。教育是涵育素養的基石,臺灣致力於教育國際化已逾十年,其跨文化素養成果值得檢視。本文闡述跨文化素養的意義及重要性,並由2017∼2020年對高等教育本籍及境外生的研究及觀察,歸納出臺灣現階段需省思的三大跨文化素養議題,包括文化刻板印象、文化敏感度及跨文化學習動機,進而提出加強教師跨文化素養培 訓、將跨文化素養列為高等教育核心能力,以及持續校園國際化的建議 ...
周宛青 W. Emily Chow
doaj   +1 more source

Taxonomic and functional diversity of urban bees of the world

open access: yesConservation Biology, EarlyView.
Abstract Bees play a pivotal role in terrestrial environments. Urbanization can affect these organisms and the ecosystem services they provide. However, knowledge of the global diversity of urban bees is limited. Thus, we summarized data on urban bee species identities and occurrences; compared distributions of all bees with those found in urban ...
João C. F. Cardoso   +10 more
wiley   +1 more source

全球火山活动时空分布特征及其对强震活动趋势的指示

open access: yesDizhen xuebao
基于史密森学会火山目录分析了全球火山活动的时空特征,并结合中国地震台网目录讨论了火山活动对全球和中国大陆强震活动趋势的指示意义。结果显示:① 全球火山活动表现出较为显著的百年周期特征,且百年周期内火山活动和M≥8.0大震之间存在着频次准同步和能量互补现象;② 中国大陆1955年前后强震活动状态的变化可能与同期全球火山活动状态变化密切相关,且二者可能受控于百年周期内地球内部能量积累与释放的状态变化;③ 2022年汤加火山的剧烈喷发意味着地球内部能量仍在持续释放 ...
Fuqiang Shi   +7 more
doaj   +1 more source

Centering geospatial data uncertainty and the potential for injustice in pastoralist rangeland conservation prioritization

open access: yesConservation Biology, EarlyView.
Abstract Procedural, distributional, recognitional, and epistemic justice aspects of conservation interventions are well documented in contexts where pastoralism is a key livelihood and way of life. Geospatial analyses and representations of wildlife conservation and restoration that are increasingly applied in pastoralist rangeland socioecological ...
Ryan R. Unks
wiley   +1 more source

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