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“地排球”运动在我国高等学校开展及对策研究
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作者 周明华 《洛阳师范学院学报》 2011年第5期87-90,共4页
本文对现在排球运动在高等学校开展的不利因素进行分析,在此基础上探索出一种新的排球运动方式-"地排球"运动,同时对"地排球"运动在我国高等学校推广的优势因素予以讨论,目的在于通过"地排球"运动的开展... 本文对现在排球运动在高等学校开展的不利因素进行分析,在此基础上探索出一种新的排球运动方式-"地排球"运动,同时对"地排球"运动在我国高等学校推广的优势因素予以讨论,目的在于通过"地排球"运动的开展与推广,进一步促进"地排球"运动在我国高等学校的深入推动,促使我国全民健身运动更加健康有续的发展. 展开更多
关键词 排球 地排球 全民健身
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创意理论视角下我国全民健身参与方式的转型
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作者 王辉 方奇 陶成武 《体育成人教育学刊》 2018年第6期57-60,共4页
基于创意理论,探讨体育创意案例促进全民健身参与方式发生转变的现象,认为其通过场地与空间改造、元素重组、赛事普及、草根竞技、真人秀、虚拟与现实结合等方式,实现了全民健身创意参与。提出以下建议:加强电视媒体宣传,传播全民健身文... 基于创意理论,探讨体育创意案例促进全民健身参与方式发生转变的现象,认为其通过场地与空间改造、元素重组、赛事普及、草根竞技、真人秀、虚拟与现实结合等方式,实现了全民健身创意参与。提出以下建议:加强电视媒体宣传,传播全民健身文化;专注体育工程技术创意,发挥科技正效应;转变体育创新观念,提升群众参与体育活动的质量;构建"多元一体"活动链,确保全民健身活动持续发展。 展开更多
关键词 全民健身 创意理论 体育参与方式 笼式足球 地排球 广场舞
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Implications of geoengineering under the 1.5 ℃ target: Analysis and policy suggestions 被引量:1
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作者 CHEN Ying XIN Yuan 《Advances in Climate Change Research》 SCIE CSCD 2017年第2期123-129,共7页
The Paris Agreement introduced a 1.5 ℃ target to control the rise in global temperature, but clear arrangements for feasible implementation pathways were not made. Achieving the 1.5 ℃ target imposes high requirement... The Paris Agreement introduced a 1.5 ℃ target to control the rise in global temperature, but clear arrangements for feasible implementation pathways were not made. Achieving the 1.5 ℃ target imposes high requirements on global emission reduction. Nationally Determined Con- tributions of all Parties are far from the 1.5 ℃ target, and conventional emission reduction technologies and policies will also have difficulty in fulfilling this task. In this context, geoengineering is gaining interest in the international arena. The Paris Agreement includes afforestation, carbon capture, utilization and storage, and negative emission technologies such as bio-energy with carbon capture and store. All of these techniques are CO2 removal technologies that belong to geoengineering. Solar radiation management, which is highly controversial, has also attracted increased attention in recent years. Although the outline of the IPCC Special Report on 1.5 ℃ does not include a specific section on geoengineering issues yet, geoengineering is an unconventional technical option that cannot be avoided in research and discussions on impact assessment, technical options, ethics, and international governance under the 1.5 ℃ target. On the basis of analyzing and discussing abovementioned issues, this paper proposes several policy suggestions for China to strengthen research on and response to geoengineering. 展开更多
关键词 Paris Agreement 1.5 target GEOENGINEERING
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Projected Changes in NO_x Emissions from Lightning as a Result of 2000–2050 Climate Change
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作者 JIANG Hui LIAO Hong 《Atmospheric and Oceanic Science Letters》 CSCD 2013年第5期284-289,共6页
Lightning is one of the most important natural sources of atmospheric NOx.The authors investigate the2000–2050 changes in NOx emissions from lightning using the global three-dimensional Goddard Earth Observing System... Lightning is one of the most important natural sources of atmospheric NOx.The authors investigate the2000–2050 changes in NOx emissions from lightning using the global three-dimensional Goddard Earth Observing System chemical transport model(GEOS-Chem)driven by meteorological fields from the Goddard Institute for Space Studies(GISS)general circulation model(GCM)3.Projected changes in climate over 2000–2050are based on the Intergovernmental Panel on Climate Change(IPCC)A1B scenario.The global NOx emission from lightning is simulated to be 4.8 Tg N in present day and to increase by about 16.7%over 2000–2050 as a result of the future climate change.The largest present-day emissions and climate-induced changes are found in the upper troposphere in the tropics.Regionally in eastern China(20–55 N,98–125 E),NOx emissions from lighting is simulated to be 0.3 Tg N(6.3%of the global total emission)in present day and to increase by 26.7%over2000–2050.The simulated changes in NOx from lightening correspond well with the projected future changes in convective precipitation. 展开更多
关键词 NOx LIGHTNING climate change
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Methane Dynamics in Northern Peatlands: A Review 被引量:13
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作者 D. Y. F. LAI 《Pedosphere》 SCIE CAS CSCD 2009年第4期409-421,共13页
Northern peatlands store a large amount of carbon and play a significant role in the global carbon cycle. Owing to the presence of waterlogged and anaerobic conditions, peatlands are typically a source of methane (CH4... Northern peatlands store a large amount of carbon and play a significant role in the global carbon cycle. Owing to the presence of waterlogged and anaerobic conditions, peatlands are typically a source of methane (CH4), a very potent greenhouse gas. This paper reviews the key mechanisms of peatland CH4 production, consumption and transport and the major environmental and biotic controls on peatland CH4 emissions. The advantages and disadvantages of micrometeorological and chamber methods in measuring CH4 fluxes from northern peatlands are also discussed. The magnitude of CH4 flux varies considerably among peatland types (bogs and fens) and microtopographic locations (hummocks and hollows). Some anthropogenic activities including forestry, peat harvesting and industrial emission of sulphur dioxide can cause a reduction in CH4 release from northern peatlands. Further research should be conducted to investigate the in fluence of plant growth forms on CH4 flux from northern peatlands, determine the water table threshold at which plant production in peatlands enhances CH4 release, and quantify peatland CH4 exchange at plant community level with a higher temporal resolution using automatic chambers. 展开更多
关键词 global carbon cycle greenhouse gas methane oxidation METHANOGENESIS methanotrophy
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An analysis of China's CO_2 emission peaking target and pathways 被引量:14
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作者 HE Jian-Kun 《Advances in Climate Change Research》 SCIE 2014年第4期155-161,共7页
China has set the goal for its CO2 emissions to peak around 2030, which is not only a strategic decision coordinating domestic sustainable development and global climate change mitigation but also an overarching targe... China has set the goal for its CO2 emissions to peak around 2030, which is not only a strategic decision coordinating domestic sustainable development and global climate change mitigation but also an overarching target and a key point of action for China's resource conservation, environmental protection, shift in economic development patterns, and CO2 emission reduction to avoid climate change. The development stage where China maps out the CO2 emission peak target is earlier than that of the developed countries. It is a necessity that the non-fossil energy supplies be able to meet all the increased energy demand for achieving CO2 emission peaking. Given that China's potential GDP annual increasing rate will be more than 4%, and China's total energy demand will continue to increase by approximately 1.0%--1.5% annually around 2030, new and renewable energies will need to increase by 6%-8% annually to meet the desired CO2 emission peak. The share of new and renewable energies in China's total primary energy supply will be approximately 20% by 2030. At that time, the energy consumption elasticity will decrease to around 0.3, and the annual decrease in the rate of CO2 intensity will also be higher than 4% to ensure the sustained growth of GDE To achieve the CO2 emission peaking target and substantially promote the low-carbon deve!opment transformation, China needs to actively promote an energy production and consumption revolution, the innovation of advanced energy technologies, the reform of the energy regulatory system and pricing mechanism, and especially the construction of a national carbon emission cap and trade system. 展开更多
关键词 CO2 emission peak Energy revolution Climate change China's carbon emission mitigation target
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Efflux Estimate of Greenhouse Effect Gases in Three Different Forest Formations and the Influence of Soil
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作者 Victor Satiro de Medeiros Marcos Gervasio Pereira +2 位作者 Joao Henrique Gaia Gomes David Rodrigues da Silva Maia Claudinei de Souza Guimaraes 《Journal of Environmental Science and Engineering(A)》 2014年第6期305-311,共7页
In carbon global cycle, the relationship between the terrestrial ecosystem and the atmosphere where there are, among others, gases that contribute to the greenhouse effect, has become object of relevant scientific int... In carbon global cycle, the relationship between the terrestrial ecosystem and the atmosphere where there are, among others, gases that contribute to the greenhouse effect, has become object of relevant scientific interest. The content of organic matter in soil, expressed by its supplies as well as the organic matter degree of stability, are factors that can prevent the soil from acting as a drain and at the same time contribute for it to become a source of those gases. The variations in the way land is used in Brazil are factors responsible for the increase in emission of greenhouse effect gases. Based on these facts, this study was aimed to evaluate the CO2 and CH4 efflux using a gas retention chamber, and to associate these emissions to the organic carbon content in the soil. Two different areas were selected for the study, one in Tijuca Forest National Park, in a forest area, and the other at the Rio de Janeiro Federal Rural University campus. In the latter, the area was stratified in three sub areas according to the vegetation, use and water saturation degree. Samplings were performed during 8 months between 2013 and 2014. 展开更多
关键词 Effiux estimate of greenhouse effect gases influence of soil and climate carbon global cycle.
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