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1.
全球气候变化及其影响因素研究进展综述   总被引:37,自引:3,他引:34  
概述了全球气候变化问题提出的科学背景,总结了引起气候变化的原因,客观分析了引起不同时间尺度气候变化的各种自然因素,透视了人类活动对气候变化的影响程度,讨论了应该如何理解当今全球气候变暖问题。同时,还综述了气候变化研究中的学术分歧和科学困惑。  相似文献   

2.
There has been increasing concern about the lack of involvement by social scientists and humanists in a global change program, although many social scientists are already directly involved in various aspects of research on environmental change, and their research interests are clearly central to a global change research agenda. Based on a historical review, the role of social science disciplines as well as social science institutes in an emerging multidecadal global change program is discussed. Both “plan of action” and “plan of inaction” are suggested to avoid potential pitfalls due to the rush development of a social science program into the existing global climate change problem.  相似文献   

3.
Based on a series of international conferences for establishing HFA2 framework, this paper analyzed key issues of frontier of disaster risk science, integrated disaster prevention and mitigation strategies and integrated disaster risk governance. The future direction of disaster risk science was comprehensively discussed according to the widely discussed Post 2015 Hyogo Framework for Action (HFA2). It was proposed to deepen the cognition of the complexity of disaster system in terms of recognizing the complexity of disaster system from the interaction among various elements of the system, recognizing the complexity of climate change risk from the regional characteristics and formation mechanism of the global climate change and recognizing the complexity of the catastrophe risk from the regional development levels and patterns. Furthermore, it was suggested to make integrated disaster risk reduction strategies and countermeasures from the perspective of the complexity of the disaster system, including the establishment of regional integrated disaster risk governance framework to face climate change, the establishment of integrated disaster risk governance system in multi-spatial scale, the establishment of disaster risk governance financial system integrating the insurance, bonds and lottery, the establishment of consilience mode in integrated risk governance considering multi-stakeholder and the establishment of modeling and simulation platform integrated disaster risk information services and disaster risk reduction strategies. Finally, it was pointed out that the assessment of disaster risk levels for different regions in multi spatial scale can provide robust scientific support for integrated disaster risk governance of the world and regions, industries and enterprises so as to improve response to global change and guarantee a global and regional sustainable development.  相似文献   

4.
In order to address the impacts of climate change, global multilateral institutions, development organizations, and national and regional science organizations are creating climate services – packages of useful climate information intended to help decision makers. This diffuse collection of actors and institutions suggest that producing climate services will help bridge gaps between climate scientists and decision-makers and will therefore help vulnerable countries and people manage the risks and optimize the impacts of climate change. This article examines this global science-policy ecosystem using the case of climate services produced by Australian science agencies for consumption in adaptation programming in the Pacific Island countries of Kiribati and Solomon Islands. Linking research on geographies of marketization and the neoliberalization of science, I demonstrate that within the climate service movement a focus on usefulness is paired with an emphasis on commercialization. As a result, this case shows the inherent tensions in the climate service model: first, a focus on competition and circulating service products at the expense of collaborative relationships; second, difficulties in negotiating uncertainty; and third contradictions between ‘objective’ and ‘entrepreneurial’ science. In each of these instances, the commercialized mechanisms through which climate services are governed, and the political economic circumstances within which they are produced, magnify rather than ameliorate gaps between science and policy.  相似文献   

5.
气候变暖成因研究的历史、现状和不确定性   总被引:6,自引:1,他引:5  
任国玉 《地球科学进展》2008,23(10):1084-1091
简要回顾了关于气候变暖成因研究的历史和现状,重点评述了当前气候学界对全球和中国气候变暖原因的认识及其仍存在的不确定性。气候学者对气候变暖与大气中温室气体浓度关系的认识,目前比过去任何时候似乎都更加清晰,但他们眼前仍然弥漫着重重迷雾。引起观测到的气候变暖的因子十分复杂,相关问题的研究仍存在大量不确定性。未来气候变化科学的进步依赖于对这些尚存不确定性的认识水平和削减程度。  相似文献   

6.
Climate change is one of the most active research fields currently, which has attracted extensive attention from the international community. In order to better understand the development situation and research status of international climate change science, in this paper we took the SSCI and SCI databases as data sources, collected the relevant literatures since 1900 based on the key words related to climate change, and made some statistics and analysis of the literatures of the past one hundred years to reveal the development process of climate change research as well as the development and evolution of its research topics and hot spots. The results showed that the climate change research began in the late 18 th century and early 19 th century, and the academic debate about global warming and global cooling started in the early 1970s. The international programs and projects led by a range of international organizations and intergovernmental bodies have contributed significantly to the rapid development of climate change research. The United States and the United Kingdom have long been the core countries of climate change research. The proportion of Chinese papers has risen rapidly in the last decade. The intensity and scope of scientific research cooperation are constantly expanding. Current research focuses on climate model/modeling, climate simulation, climate policy, climate sensitivity, climate change impacts, climate change adaptation, climate change mitigation, and rate of climate change.  相似文献   

7.
In the United States, contemporary anti-science education coalitions are increasingly linking climate change and evolution using “teach the controversy” campaigns. Awareness of this political phenomena raises questions about the extent to which portrayals of global warming predictions as mere knowledge claims undermine efforts to increase public understanding of scientific consensus about global warming. This paper uses a critical political ecology framework to explore the problematization of climate change consensus located and performed across discourses of secondary science teaching and learning. Theories of resistance are used to analyze teachers’ everyday experiences with classroom pushback about climate change. Data collection included key informant interviews with state science education stakeholders and on-line survey of 5th–12th grade science teachers in Oklahoma, USA. The article synthesizes the situated discourses of Oklahoma science teachers’ and their attitudes about teaching climate change in the face of public controversy. Our analysis demonstrates teachers marginalized by anti-science controversies but engaged in everyday acts of resistance to political, ideological, and religious norms. Most notably, science teachers re-purpose “teach the controversy” frames as a way to introduce climate change where it might not otherwise be included. We argue that, contextualized within a history of contestation over the teaching of evolution, the practice of teaching ‘both sides’ is an important boundary ordering device that bridges convinced and skeptical discourses in the classroom. This research informs new roles and possibilities for science education on global environmental change by reminding climate scientists, educators, and policy advocates that all climate change knowledge is coproduced.  相似文献   

8.
全球变化及其相关科学概念的发展与比较   总被引:3,自引:2,他引:1  
在回顾全球变化科学产生和发展历史的基础上,针对当前全球变化、全球气候变化、全球环境变化、地球系统科学在概念和内涵上存在混淆的情况,就全球变化等概念的内涵、产生的过程及其联系进行了综述、分析和比较。提出全球变化是指对人类现在和未来生存与发展有重要的直接或潜在影响、由自然因素或人类因素驱动在全球范围内所发生的地球环境的变化,或与全球环境有重要关联的区域环境的变化。气候变化和全球环境变化的研究范畴包含在全球变化之中,但又各有其关注领域和交叉部分;而地球系统科学是解决全球变化问题的科学理念、思维方式和解决方案。]  相似文献   

9.
中国沿岸海平面上升与海岸灾害   总被引:15,自引:0,他引:15       下载免费PDF全文
杨华庭 《第四纪研究》1999,19(5):456-465
政府间气候变化专门委员会1995年气候变化评价报告指出,全球海平面在过去的100年里上升了18cm,预测全球海平面将加速上升,在2050年时上升20cm,2100年时上升49cm.根据近40多年的验潮资料分析,中国沿岸海平面上升速率为1.4~2.0mm/a,与全球上升速率一致。由于沿海许多地区的严重地面沉降,地壳垂直升降的不同,以及其它因素的影响,我国沿岸海平面的相对上升各不相同,严重地区的上升速率要大得多。海平面的加速上升必将使我国沿海大部地区的风暴潮等自然灾害更加严重。  相似文献   

10.
生态系统响应全球变化的陆地样带研究   总被引:2,自引:0,他引:2  
为从机理上理解、评估和预测陆地生态系统对全球变化的响应,国际地圈生物圈计划在全球共启动了15条全球变化陆地样带,其中2条在中国,即中国东北样带和中国东部南北样带。从植物碳氮代谢、生物多样性、生态系统功能与碳收支及样带生态系统的变化趋势等方面较系统地总结了围绕中国这2条全球变化陆地样带的最新研究进展,加深了全球变化与陆地生态系统相互作用过程与机制的理解,提出未来中国全球变化陆地样带研究应充分利用我国特殊的生态与环境及区域特色,重点针对陆地生态系统对全球变化的适应性、地球系统相互作用的生物—物理—化学—社会过程与管理、土地利用变化的动力学过程与机制、灾害性天气气候的生态效应及其调控机制和全球变化模拟预警系统开展研究,做出一些在国际上既有显示度又服务于我国社会经济可持续发展的研究成果。  相似文献   

11.
Climate change and land use/land cover change have resulted in water shortage, degraded ecosystem services, and increased disaster risks across the world. Developing strategies and measures for achieving regional and global sustainability in the face of these environmental problems is a key topic of current climate change research. This paper provides an overview of the 973 project, entitled “Integrative Modeling and Strategic Planning for Regional Sustainability under Climate Change”, including its background, relative progresses, key scientific questions, major research elements, methodology, and expected outcomes. The proposed research is based on sustainability science, guided by the idea of Orderly Human Activities (OHA), and implemented through an integrated methodology of combining field observations, simulation experiments, and scenario analysis. The main objectives of the project are: to quantify the relationship between human activities and climate change, to assess the impacts of human activities on ecosystem services and human well being in the face of climate change, and to develop an integrated model of climate change, OHA, and regional sustainable development. The ultimate goal is to provide a landscape/regional-scale strategy for sustainable development in the face of climate change. The project is expected to help advance the science and application of landscape sustainability science and land system design, particularly in terms of linking climate change, ecosystem services, and human well-being in the dry land region of China.  相似文献   

12.
2015 is the International Year of Soil (IYS) adopted by the 378th Congress of the United Nations. The Status of the World’s Soil Resources was released by the Food and Agriculture Organization of the United Nations, which was the policy report about the status of the world soil resources for the first time. The universal values of the global community were strengthened by the challenges for the global society from the risk and safety of the change of soil quality, functions, services and soil health. One third of the world soil resources were suffering serious degradation, which could affect the food security in the future, regional development and local conflicts in the report. The major task of the global monitoring, regulation and management of the world soil resources and the social responsibility of supporting the sustainable soil management by education, research and technology development were highlighted. The social responsibility and global development trends of soil science and management strategies were discussed by the keywords, the distribution of contributing authors and the citation of the references, as well as the main contents of the report. The keywords distribution of the report showed that the focus of the soil research included the change of soil quality, processes, functions and services induced by the natural driving forces, human’s activity and soil degradation, as well as the hotspots covered soil carbon/nitrogen-water-biological pool and distribution related with the biogeochemistry, global climate change and ecosystem functions and human health. The number and structure of the cited papers showed that the integration research based on the mega-data analysis were the prominent development trend of the soil science. The geographic distribution of all the contributing authors showed that dominant discourse of the global soil science were grasped by the developed countries including Europe and the United States, China had just limited effects on the global soil science. It is urgent to promote China’s soil science research and the services for global society.  相似文献   

13.
随着全球经济的快速增长、 交通可达性的改善、 大众休闲时间的增多, 以及旅游者多样的消费需求, 世界冰川旅游得以快速发展。然而, 伴随着全球气候变化, 冰川旅游可持续发展受到了不同程度的影响。越来越多学者开始关注气候变化、 冰川旅游、 当地社会生态环境和未来冰川旅游发展方向等一系列问题。为此,通过文献综述方法, 对当前世界冰川旅游发展进程进行了系统梳理。同时, 在已有研究基础上, 对冰川旅游与文化服务、 气候变化、 当地社会生态环境、 自然灾害、 风险管控以及空间规划等方面进行了综述。以上研究可为冰川旅游可持续发展提供科学的参考。2016年3月, 习近平总书记在十二届全国人大四次会议期间指出“绿水青山是金山银山,冰天雪地也是金山银山”的科学论断。这一理念的落地和发展, 必将吸引越来越多的国内外游客访问和体验中国西部冰川旅游目的地。  相似文献   

14.
南极地区与全球变化集成研究展望   总被引:7,自引:1,他引:6  
全球变化是21世纪人类发展面临着的重大课题。近20年来的南极研究为全球变化科学的形成和发展做出了重要贡献,许多证据表明南极地区是全球变化的最敏感指示器之一。南极地区的全球变化集成研究是目前极地科学和全球变化科学研究的重要方向。21世纪,围绕全球变化,国际上对南极地区的研究正朝向具有时间和空间尺度,具有生物、海洋、大气、岩石的圈层作用、星球之间的相互影响以及人类干扰因素等集成的关键过程研究。可以预测,对南极地区的多界面、大尺度、多学科的综合集成研究,将极大地丰富和提高人们对全球气候和环境变化的了解和预测能力。中国也将在国际南极地区与全球变化集成研究中作出自己的努力。  相似文献   

15.
我国北方岩溶研究的形势和任务   总被引:5,自引:3,他引:2  
袁道先 《中国岩溶》2010,29(3):219-228
随着国民经济的发展、全球气候变化的加剧,我国北方岩溶还出现了许多重大环境地质问题,不仅受到国家的重视,还引起了国际学术界的关注。国家及各级政府正加大对岩溶研究的投入,北方岩溶研究面临着前所未有的大好形势,同时也肩负重大的责任。本文从社会经济发展和学科建设的需求出发,简要阐述了北方岩溶研究所面临的问题,并提出今后应当加强对北方岩溶水资源的保护工作,重视对岩溶形态等基础理论的研究,特别是对岩溶陷落柱、古岩溶与深部岩溶发育规律的研究,加强对已有成果的总结与交流;在应对全球气候变化和极端气候上,一方面要逐步推进岩溶碳汇调查和岩溶地质储碳实验的开展,另一方面要开展对气候变化,尤其是极端气候与岩溶水及岩溶含水层关系的研究;此外,还应当重视岩溶知识的普及,加强后继人才的培养,特别是对岩溶战略科学家的培养。   相似文献   

16.
Global climate change featured with warming has created serious challenge to world sustainable development and human security. It has become an important consensus of the international society to assess global change risk at the global scale and carry out tailored governance and risk-based adaptation. National Key Research and Development Program “Study on global change population and economic system risk forming mechanism and assessment” aims at quantitatively predicting future global climate change and population and economic system exposure and vulnerability change, developing global change population and economic system risk assessment model based on complex system dynamics, synthesizing risk assessment model with proprietary intellectual property rights, assess global change population and economic system risk of the near and mid future at the global scale, and compiling the atlas of global change population and economic system risk. The outcomes intend to serve the participation of global risk governance and international climate negotiation, and to provide scientific support to the implementation of international disaster risk reduction strategy.  相似文献   

17.
D.L. Carr  Emma S. Norman 《Geoforum》2008,39(1):358-371
In the face of mounting environmental degradation and persistent poverty over the previous decade, Johannesburg’s World Summit on Sustainable Development (WSSD) of August and September 2002 inherited a number of unmet accords from the 1992 Rio de Janeiro Earth Summit. Consequently, the United Nations Stakeholder Forum Implementation Conference (IC) was convened to integrate civil society stakeholders into global deliberations on sustainable development and to marshal their forces in the implementation of WSSD accords. Given the importance of the IC as the first civil society forum at a major global summit on environment and poverty, intriguing questions emerge as to its effectiveness in achieving civil society objectives. As a first attempt in exploring this topic, we examine three fundamental aspects of the IC. Specifically, we examine the relative “civility” of the IC forum in terms of (a) fidelity of representation of the community of global environment and development stakeholders; (b) autonomy of the IC agenda from state and institutional interests; and (c) interpretations of space and place as reflected in deliberative processes and outcomes. The paper begins with a review of the civil society literature with a particular emphasis on civil society representation in UN meetings since Rio. The paper concludes with a discussion of IC participation at the Johannesburg summit, and considers implications for future civil society participation in global decision-making forums.  相似文献   

18.
全球变化与海洋地质   总被引:2,自引:0,他引:2  
全球变化研究需要多学科的综合集成,涉及自然科学和社会科学诸多领域,国际海洋科学全球变化研究方面已经开展许多研究项目,诸如“海洋全球变化合作研究计划(IMAGES)”,“过去全球变化研究(PAGES)”,“海岸带陆海相互作用(LOICZ)”等,旨在通过对海洋表面和深部变化及与陆地的相互关系作用来研究全球气候及气候变化的历史,海洋地质在研究古气候,古水温,海洋与陆地气候联系,环境重建,陆海相互作用等方面举足轻重,同时地质学在参与全球变化研究中发挥着不可或缺的作用。  相似文献   

19.
Global climate change has been one of the most concerned environmental problems in the world since the 1980s. Since stable carbon composition (13C) in plant tissues can record abundant information on climate changes, it has been widely used as an important climate proxy in global change studies and becomes a powerful tool for obtaining paleoclimate information, understanding paleoenvironment reconstruction and modern climate change, and predicting future climate trends. However, a lot of potential uncertainties have always involved in the reconstruction of paleoclimate and paleoenvironment by carbon isotope of the past period sediment or fossils. Among them, the most dominant uncertainty is due to our poor understanding of the relations between carbon isotope ratios of plants and climatic factors and the climatic and environmental significance indicated by modern plant 13C. This may limit the application of plant 13C in the study of climatic and environmental changes. Based on the Summary of plant 13C fractionation and carbon isotope distribution of different photosynthetic plants, the effects of environmental factors, e.g., temperature, precipitation, atmospheric CO2 concentration, and altitude on terrestrial plant 13C and their relationships were reviewed in this paper, and the response mechanism of plant 13C to climate changes were also analyzed. Furthermore, the current existing problems and the future prospects in carbon isotope study were discussed. It is pointed out that strengthening some studies such as the response of C4 plants 13C to climate environmental parameters, the transformation relation of different scale plant 13C, intersection and permeation of related disciplines, and various proxies and scientific method, will undoubtedly make us have a more accurate understanding of the climate history and eventually broaden the development of the field during the process of global change study by plant carbon isotope techniques.  相似文献   

20.
气候变化对河西内陆干旱区出山径流的影响   总被引:14,自引:7,他引:14  
根据祁连山区与河西走廊平原区有关水文气象台站的降水、气温和径流观测资料,分析了该区域近50a来气候变化的特征及其与全球气候变暖的关系。出山径流对气候变化的响应以及未来的变化趋势,结果表明,河西内陆干旱区的山区和走廊平原区近几十年来气温变化总的呈上升趋势,与全球增温存在着某种种度的一致性。但山区气温的变化幅度一般大于走廊平原区,其中祁连山中段温度升幅为最大。全球增温对河西内陆干旱区气候与出山径流的影响有着明显的地域性差异,受此影响影响,河西祁连山东部地区出山径流呈明显的下降趋势,中部地区出山径流的增加趋势不是十分明显,西部出山径流在山区降水量与气温同时上升的情况下,呈明显的上升趋势。  相似文献   

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