Results 51 to 60 of about 5,153 (167)

Variability of Sea Level and Statistical Characteristics of Storm Surges in off shore Fujian [PDF]

open access: yes, 2016
海平面上升加剧了风暴潮、海岸侵蚀和海水入侵等灾害,给人类生存环境带来巨大的威胁,因此,研究海平面变化对开展防灾减灾工作具有重要意义。海平面变化的研究主要集中在海平面变化趋势和空间分布研究、影响机制以及风险评估研究等方面。然而,目前对于福建近海海平面的研究较少。本文利用卫星高度计和福建沿海验潮站资料进行福建近海海平面变化研究,主要研究海平面的季节、年际以及长期变化特征,并简要进行海平面变化机制研究,同时对福建近海海平面时、空变化特征进行研究。福建沿海频受台风侵袭,常常带来严重的风暴潮灾害 ...
袁方超
core  

Accelerating Just Energy Transitions in Brazil: Pathways for Social Development

open access: yesLatin American Policy, Volume 17, Issue 1, March 2026.
ABSTRACT This critical article analyzes energy poverty in Brazil from the theoretical perspective of distributive justice, proposing the implementation of a new social regulation called Contribution to Social Development. The goal is to support the process of a just energy transition leading to a broader debate on energy planning and social issues ...
Marcio Giannini Pereira   +5 more
wiley   +1 more source

The impacts of nutrients and organic carbon availability on microbial carbon utilization and its consequences [PDF]

open access: yes, 2015
海洋作为地球上重要的碳库,在全球气候变化的背景下,受到广泛关注。其中微型生物在海洋碳循环过程中发挥了重要作用。传统研究认为,环境营养盐浓度的提高可以增加初级生产力,固定更多的CO2,因此有利于储碳;而微型生物碳泵的生态学原理指出,过量营养盐会刺激细菌利用环境中的惰性有机碳,不利于储碳。即,固碳不等于储碳。同时,土壤和淡水环境的研究发现,在外源活性有机碳输入的条件下,原位环境的惰性有机碳会被加速利用,导致更多有机碳被消耗,称为“激发效应”(PrimingEffect,PE)。PE在碳循环中具有重要意义 ...
刘纪化
core  

Advancing Water Security in the Tropical and Subtropical Regions: An Integrative Topic Modeling Approach

open access: yesWorld Water Policy, Volume 12, Issue 1, February 2026.
ABSTRACT Water security in tropical regions faces escalating pressures from climate change, land‐use shifts, and population growth. We conducted a bibliometric review of 1146 peer‐reviewed articles (1964–2023) on tropical water security. Latent Dirichlet Allocation identified 13 thematic topics and their evolution. Publications rose sharply after 2012,
Karling Fernanda Schuster   +3 more
wiley   +1 more source

Impact of Climate Policy on International Trade and Policy Choices of China [PDF]

open access: yes, 2016
气候变暖正在成为二十一世纪人类面临最大的挑战之一。温室气体作为一种全球性的污染,需要多边协作治理。以《联合国气候变化框架公约》为代表的多边气候变化协议确立了发达国家和发展中国家在减缓气候变化方面的“共同但又有区别的责任”原则。各国实行的适应和减缓气候变化的政策和行动,对国际贸易的模式、贸易的流量和贸易竞争力正产生着重要的影响:一方面,一些为遏制温室气体排放而采取的政策和措施,可能会削减国际贸易与投资;另一方面,低碳经济、新能源产业的发展和气候友好型产品贸易自由化进程,又将给国际贸易带来新的动力;与此同时,
郑晖智
core  

Climate change, trauma and mental health in Italy: a scoping review. [PDF]

open access: yesEur J Psychotraumatol, 2022
Massazza A, Ardino V, Fioravanzo RE.
europepmc   +1 more source

滦河流域气候变化与人类活动对径流的影响

open access: yesShuitu Baochi Xuebao, 2018
以滦河流域为研究区域,应用敏感性分析和双累积曲线法分析气候变化和人类活动对研究区径流变化的影响,结果表明:研究区流域径流存在明显的下降趋势,与基准期(1956—1979年)相比,变化期(1980—2013年)径流量减少了52.59 mm(50.43%);滦河流域径流对降水的敏感性系数?Q/?P为0.336 1,对潜在蒸散发的敏感性系数?Q/?E0为-0.123 5,气候变化影响量为22.23 mm;滦河流域径流变化过程中,人类活动影响量为32.07 mm,其贡献率为57.26%,远大于气候变化的影响39.
师, 袁士保, 史常青, 赵廷宁
doaj  

The Effect of N2O Emission Mitigation by Growing Soybeans Instead of Other Crops [PDF]

open access: yes, 2016
农业是重要的温室气体排放源之一,而在农业生产过程中施用氮肥是引起农业温室气体排放的主要原因。因此,如何合理有效的施用氮肥对减少农业温室气体排放、减缓全球气候变化至关重要。鉴于此,对通过合理施用氮肥从而减少温室气体排放的减排措施进行成本效益分析,将有助于我们找到具有经济效益的农业温室气体减排方法。目前,相关减排措施研究主要集中在农田测土配方施肥、改良施肥(缓释肥和长效肥)上。得益于与豆类作物共生的根瘤菌具有的固氮作用,豆类作物相比其他农作物施用更少的氮肥,从而排放更少的氧化亚氮(N2O)。因此 ...
许俊武
core  

Contribution of microcosm experiments to conservation science

open access: yesConservation Biology, Volume 40, Issue 1, February 2026.
Abstract Microcosms, or miniature experimental systems, have been used to develop models and theories in ecology. However, their contribution to conservation science is unclear. We explored the application, design, and impact of microcosms in conservation science from 469 systematically identified articles published from 1986 to 2023.
Eleanor R. Stern   +3 more
wiley   +1 more source

Evolution of research on global amphibian declines

open access: yesConservation Biology, Volume 40, Issue 1, February 2026.
Abstract In the late 1980s, the scientific community became aware of severe, enigmatic amphibian population declines. These declines triggered a wave of research focused on quantifying their extent and identifying key drivers. We used text‐analysis techniques, including topic modeling and geoparsing, to examine the evolution of research focused on ...
Jordann Crawford‐Ash   +6 more
wiley   +1 more source

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