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1.
日益严峻的生态与环境问题表明,生态学对实现可持续发展的相关决策的影响力还很有限。从知识生产、传播和应用的角度,系统分析了妨碍生态学服务于政策的因素,指出生态知识传播的形式不当是主要原因之一。生态指标是关于生态系统结构、组成成分或功能方面的可度量的特征,它是生态系统的指示器,也是生态信息的有效传播形式之一。生态指标能够以一种易于公众和决策者理解和交流的方式来提供生态信息,服务于相关生态和环境政策的制定。实际上,只有由生态学家、政策制定者和决策者共同参与开发出来的生态指标才能真正成为生态学和政策的桥梁,才能有助于消除决策者和生态学家之间的隔阂,促进形成科学合理的生态政策。为了让生态学更好地服务于可持续发展的相关决策,还应该将生态指标与社会经济指标结合起来  相似文献   

2.
Translating knowledge of air quality into a form that can be understood by students and the general public is a major challenge for scientists, public officials, and teachers. Social science studies have shown that both educators and the general public are relatively uninformed about recent findings in environmental research. It is especially difficult to get students of today excited about environmental issues because environmental education has become institutionalized. Students believe they know about major environmental problems even when their knowledge is rudimentary or even wrong. One problem in getting public attention is the general level of hyperbole and hysteria common in most media. Thus, do we try to be even more shrill and apocalyptic than other advocates clamoring for public notice, or should we refuse to participate in this competition for attention?A model is presented to bring K-12 teachers, scientists, and students together to develop innovative, inquiry-based, active learning materials for environmental education. Curricular materials utilizing the discovery process can be created and tested in an iterative process that incorporates the results of current science research into highly effective teaching materials for schools. Following extensive evaluative procedures and review, exemplary materials are prepared for publication. This collaborative method also gives teachers and students a more realistic understanding of how science works by giving them access to active scientists and practical scientific experience.Finally, we argue that scientists need to reveal why they care about environmental issues. It is not enough to remain aloof and objective. If we are going to motivate students and the public to make changes in their lives, we need to make a convincing case for the importance of air quality and what it means in practical terms to our common environment.  相似文献   

3.
4.
池塘养殖生态系统空气调节服务价值的实证研究   总被引:4,自引:1,他引:3  
生态服务价值的评估对于研究人员、政策制定者和公众都有重大意义,而农业生态系统价值往往集中于食物的供给价值,而生态系统的调控服务价值、支持服务价值和文化服务价值往往被忽略。空气调控服务属于生态系统调控服务中的一种,通过按季度检测池塘养殖水体的叶绿素a含量,计算养殖池塘的初级生产力,再以工业制氧法、碳税法和造林成本法估算了常规鱼类池塘养殖生态系统空气调节服务价值。结果表明:常规鱼类池塘养殖生态系统空气调节服务总价值为63 42248 yuan/a〖DK1〗·hm2。考虑到系统内部耗氧和向系统外释放含碳气体导致的价值损失,常规鱼类池塘养殖生态系统空气调节服务总净价值为28 88674 yuan/a〖DK1〗·hm2,其中固碳净价值为 25 46328 yuan/a〖DK1〗·hm2,释放氧气的净价值为3 42346 yuan/a〖DK1〗·hm2。相较44 0221 yuan/a〖DK1〗·hm2的池塘养殖水产品的市场价值,空气调节服务价值超过养殖水产品市场价值的一半以上,表明池塘养殖的生态服务价值对人类社会的贡献不可忽视。研究认为,由于池塘藻类的高增长率,常规水产池塘养殖系统空气调节服务价值高于一些种植业生态系统的空气调节服务价值。  相似文献   

5.
This paper examines the relevance to groundwater management of Ostrom’s design principles for managing common property resources. Experience in four case studies of groundwater management in the Murray Darling Basin in Australia and the Upper Guadiana Basin in Spain suggests that while Ostrom’s design principles are relevant, sustainable groundwater management depends on the effective collaboration between government authorities and water users. A flexible and adaptive management approach is required, with collaboration between scientists, policy makers, water suppliers, and water users. Key management challenges include agreeing on a sustainable level of extraction, and establishing effective coordination and collaboration, and monitoring and control systems. Further case studies of groundwater management and their synthesis could make a useful contribution to the transition towards sustainable groundwater management regimes.  相似文献   

6.
Competing water demands for household consumption as well as the production of food, energy, and other uses pose challenges for water supply and sustainable development in many parts of the world. Designing creative strategies and learning processes for sustainable water governance is thus of prime importance. While this need is uncontested, suitable approaches still have to be found. In this article we present and evaluate a conceptual approach to scenario building aimed at transdisciplinary learning for sustainable water governance. The approach combines normative, explorative, and participatory scenario elements. This combination allows for adequate consideration of stakeholders’ and scientists’ systems, target, and transformation knowledge. Application of the approach in the MontanAqua project in the Swiss Alps confirmed its high potential for co-producing new knowledge and establishing a meaningful and deliberative dialogue between all actors involved. The iterative and combined approach ensured that stakeholders’ knowledge was adequately captured, fed into scientific analysis, and brought back to stakeholders in several cycles, thereby facilitating learning and co-production of new knowledge relevant for both stakeholders and scientists. However, the approach also revealed a number of constraints, including the enormous flexibility required of stakeholders and scientists in order for them to truly engage in the co-production of new knowledge. Overall, the study showed that shifts from strategic to communicative action are possible in an environment of mutual trust. This ultimately depends on creating conditions of interaction that place scientists’ and stakeholders’ knowledge on an equal footing.  相似文献   

7.
Environmental management, for which environmental and human health risk assessment is the first stage, is a requirement for industries both before construction and during operation in order to sustain improved quality of life in the ecosystem. Therefore, the aim of this study is to propose an approach that integrates environmental and human health risk assessment for industries using hazardous materials in order to support environmental decision makers with quantitative and directive results. Analytic hierarchy process and fuzzy logic are used as tools to handle problems caused by complexity of environment and uncertain data. When the proposed approach is implemented to a scenario, it was concluded that it is possible to define risk sources with their risk classes and related membership degrees in that classes which enable the decision maker to decide which risk source has priority. In addition, they can easily point out and rank the factors contributing those risk sources owing to priority weights of them. As a result, environmental decision makers can use this approach while they are developing management alternatives for unfounded and on-going industrial plants using hazardous materials.  相似文献   

8.
Sustainability has become a very significant research topic as it impacts many different manufacturing industries. Therefore, the technologies for monitoring, analysing, evaluating and optimising the sustainability performance of manufacturing processes and systems are very critical for decision makers on the shop floor. This paper introduces a decision guidance management system that provides actionable recommendations through quantitative analysis of the sustainability measures of manufacturing processes and systems based on life cycle assessment. The system determines decision preferences through dynamically collected data and decision makers' responses, taking into account the prevailing constraints. Optimal decisions can be derived using mathematical and constraint programming. By using decision guidance query language, this methodology allows users to make optimal decisions without an extensive mathematical or operations research background. Knowledge of relational databases is sufficient for a user to formulate the optimisation problem and obtain optimal solutions. The methodology is demonstrated with a machining operation case study, in which a list of sustainability metrics are identified and sustainability modelling methods are proposed. Important sustainable machining performance measures are optimised, resulting in actionable recommendations.  相似文献   

9.
《Environment international》1999,25(6-7):871-886
In this paper, a simple decision model is formulated to investigate the optimal funding level for an environmental R&D activity. The Bayesian approach is extended to research in situations where the researchers have prior beliefs different from the ultimate decision makers. Sensitivity analysis demonstrated how the optimal level of R&D varies with assumptions about: 1) the shadow price of R&D resources, which is a measure of the scarcity of funds; 2) the technical difficulty of the research area; 3) the potential payoffs involved in the decision that may be influenced by the research outcome; and 4) the prior knowledge of the key decision makers. Among other insights, analysis of the model demonstrated that the optimal research expenditure jumped from zero to a significant amount or conversely with small changes in parameters. The jump occurred when the expected cost of an uninformed decision equals the cost of research plus the expected cost of the contingent decision. In addition, the optimal research expenditure was sensitive to the technical difficulty of the research area.  相似文献   

10.
Although widely studied, the residential water demand remains a controversial issue. The purpose of the current study is to investigate systematic variations across related studies using meta-analysis approach. Particularly, a meta-analytical regression is performed to assess the sensitivity of the price, income and household size elasticities to a number of characteristics including demand specification, data characteristics, price specification, tariff structure, functional form, estimation technique and location of demand. The empirical results of the study reveal that these characteristics have differing influence on the reported elasticities. Obviously, these findings lie in their importance for regulators and policy makers and for academics alike. Among others, two important conclusions emerge. First, water use in summer and winter seasons and water use for indoor and outdoor purposes are found to be important factors affecting the price elasticity. This suggests that peak-load water pricing may be an effective tool for managing water demand. Second, the three elasticities tend to be differently estimated across various regions of the world as well as between developed and developing countries. Therefore, decision makers in a given country would not rely on the findings of studies conducted on other countries in formulating their policies.  相似文献   

11.
Sustainability has become an increasingly important concept in the last few decades; however, its operational usefulness has not always been clear. In other words, some sustainability assessments may not provide decision makers with the practical information necessary to perform the assessment. This study proposes a novel operational sustainable assessment framework for Integrated Coastal Zone Management (ICZM) on a regional-scale based on a feasibility study in the Seto Inland Sea in Japan. The framework draws upon three separately developed concepts: Inclusive Wealth as the technical framework for the sustainability indicators; Satoumi (a traditional Japanese multifaceted coastal zone concept); and ecosystem services science. These three concepts complement each other when seeking to corroborate an assessment framework. Indicators based on the framework and relevant to the case study site were identified. Although Satoumi is a traditional Japanese knowledge, it is believed that its application may be instructive for other areas, as similar concepts can be found and utilized for the conduct of ICZM sustainability assessments.  相似文献   

12.
Fars Comprehensive Agricultural Database was created to remove bottlenecks and constrains of province for decision makers in a way that leads to sustainable agriculture. Regarding Fars agricultural comprehensive information database, and the importance of wheat as the strategic commodity, this study was conducted in Ali-Abad-e-Kamin (Pasargad, Iran) to assess two most important managerial factors affecting other agricultural factors. Therefore, in this study, besides evaluating the effect of water resource on wheat yield and other traits, education impacts were analyzed and evaluated as well. Data were collected regarding cadastre land use information derived from satellite imagery combined with GIS potencies, and also a comprehensive questionnaire was completed to collect local field information. Results revealed that educational level has significant effect on crop yield, fields’ area and seed consumption rate and also effect of water resource showed significant difference for crop yield, fields’ area. Finally, interactive effect of water resource and educational level showed significant difference just for wheat yield. Also, as a result, higher education positively results in improved wheat yield, lands’ area and seed consumption rate. On the other hand, river as a type of sustainable water resource with karstic geological formations positively affected wheat yield, lands’ area and farms distance from village. Overall, transferring knowledge from relevant organization resulting in higher productivity seems to be necessary.  相似文献   

13.
This paper reviews scientific and gray literature addressing climate change vulnerability and adaptation in the Inuvialuit Settlement Region (ISR) in the western Canadian Arctic. The review is structured using a vulnerability framework, and 420 documents related directly or indirectly to climate change are analyzed to provide insights on the current state of knowledge on climate change vulnerability in the ISR as a basis for supporting future research and long-term adaptation planning in the region. The literature documents evidence of climate change in the ISR which is compromising food security and health status, limiting transportation access and travel routes to hunting grounds, and damaging municipal infrastructure. Adaptations are being employed to manage changing conditions; however, many of the adaptations being undertaken are short term, ad-hoc, and reactive in nature. Limited long-term strategic planning for climate change is being undertaken. Current climate change risks are expected to continue in the future with further implications for communities but less is known about the adaptive capacity of communities. This review identifies the importance of targeted vulnerability research that works closely with community members and decision makers to understand the interactions between current and projected climate change and the factors which condition vulnerability and influence adaptation. Research gaps are identified, and recommendations for advancing adaptation planning are outlined.  相似文献   

14.
Nature conservation is a very important issue in the sustainability assessments and spatial planning context. Knowledge of the suitability of the land to behave as an ecological corridor thus provides very significant input to land-use planning. Nature conservation and land-use planning are by their nature spatial problems. A family of methods that are rapidly gaining traction for planning and policymaking, named spatial multicriteria evaluations (SMCE), which are based on geographic information systems (GIS) and multicriteria analysis (MCA) coupling, can be an effective support for this area. The present paper proposes the integration of the GIS with a specific MCA technique, named Analytic Network Process to assess the ecological value of the land in the Piedmont Region (northern Italy). The results are obtained in the form of maps to be used as decision variables in planning. The study concludes with some lessons learned during the development of the SMCE and highlights that the applied methodology is an effective tool for decision makers in spatial planning and strategic assessments.  相似文献   

15.
Long residential courses which take people away from their jobs for long periods of time are often not compatible with the day to day activities of such officers. An alternative is the sandwich programme, which can give an optimum in acquiring the cognitive knowledge and keep workers in constant touch with their field activities. The proposed model programme for upgrading environmental workers and educators has four short residential courses alternated and integrated fully with three long on-the-job (in-service) training periods.The sandwich programme minimizes interference with the normal work of the individual and there is a permanent interdependence of the activities and of the laternating courses. Its effectiveness as a means of providing deeper eduction by the improved knowledge of one's career and skills recommends it for utilisation in endeavours to make environmental workers more efficient.  相似文献   

16.
Despite compelling reasons to involve nonscientists in the production of ecological knowledge, cultural and institutional factors often dis-incentivize engagement between scientists and nonscientists. This paper details our efforts to develop a biweekly newspaper column to increase communication between ecological scientists, social scientists, and the communities within which they work. Addressing community-generated topics and written by a collective of social and natural scientists, the column is meant to foster public dialog about socio-environmental issues and to lay the groundwork for the coproduction of environmental knowledge. Our collective approach to writing addresses some major barriers to public engagement by scientists, but the need to insert ourselves as intermediaries limits these gains. Overall, our efforts at environmental communication praxis have not generated significant public debate, but they have supported future coproduction by making scientists a more visible presence in the community and providing easy pathways for them to begin engaging the public. Finally, this research highlights an underappreciated barrier to public engagement: scientists are not merely disconnected from the public, but also connected in ways that may be functional for their research. Many field scientists, for example, seek out neutral and narrowly defined connections that permit research access but are largely incompatible with efforts to address controversial issues of environmental governance.  相似文献   

17.
Green Chemistry is a new approach of chemistry that aims to satisfy the global concerns and demand for sustainability. Green Chemistry is guided by twelve very specific principles of chemical practice. Among them, the seventh one promotes the use of renewable raw materials and feedstock, such as biomass. The widespread application of Green Chemistry principles in everyday life can be achieved by incorporating its paradigm into simple experiments and activities at regular school courses. Thus, an exploration of the students?? background is required. The aim of this study is to provide baseline data on Greek student??s knowledge, beliefs and attitudes related to the seventh Green Chemistry principle namely the use of renewable feedstocks, in order to facilitate introduction of appropriate provision in the school curricula and practice in Greece. Our results indicate that there is a serious knowledge gap among secondary school students regarding the main biomass formation mechanism and the connection of biomass to the global food supply in addition to the almost complete lack of knowledge of the main Green Chemistry principles. Regarding their attitudes, students are positive towards the use of biomass and express a very strong will to be environmentally informed. A logical conclusion of our research is that the development of relevant material that will focus on the application of Green Chemistry principles in everyday life in combination with a training of a core group of educators could be considered as the first steps towards the introduction of Green Chemistry principles in the secondary education system of Greece.  相似文献   

18.
流域初始水权分配研究进展   总被引:3,自引:0,他引:3  
当前我国水资源存在短缺和使用效率低下等问题,其最核心的解决办法就是建立水权市场,而其中的关键在于界定初始水权。通过界定初始水权,在各流域行政区域之间合理地分配。简要介绍了流域初始水权分配的最新研究进展和动态,主要包括分配原则、分配指标体系、分配方法和分配机制等方面。对这些研究进行了评述并且指出了存在的问题。由于水资源分配的特殊性,涉及到水量、水质和其它一些因素,单纯的分配水权难以获得成功。在此基础上,探讨了流域初始水权分配的未来研究方向,即在考虑到了水权、排污权和林权等集成的基础上,综合考虑初始水权分配的原则、指标体系和机制等,并且在分配方法上由单一目标模型向多目标模型发展,不确定性和模糊优化模型是未来流域水资源分配模型的发展方向。  相似文献   

19.
A small part of the scientific community is seeking hard to enhance the contribution of science, knowledge and capacity building to environmentally sustainable and socially fair human development around the world. Many researchers over the globe share the same commitment – anchored in concerns for the human condition. They believe that science and research can and have influenced sustainability. Therefore their main goals are to seek and build up knowledge, know-how and capacity that might help to feed, nurture, house, educate and employ the world's growing human population while conserving its basic life support systems and biodiversity. They undertake projects, that are essentially integrative, and they try to connect the natural, social and engineering sciences, environment and development of communities, multiple stakeholders, geographic and temporal scales. More generally, scientists engaged in sustainable development are bridging the worlds of knowledge and action. This pro-active, heavily ethics- and wisdom-based "science for sustainability" can be seen as the conclusion of all dialogues and discussions amongst scientists at the World Summit on Sustainable Development (WSSD) 2002 in Johannesburg. The "Plan of Implementation" after WSSD will be based on political will, practical steps and partnerships with time-bound actions. Several "means of implementation" are going to be proofed and initiated: finance, trade, transfer of environmentally sound technology, and, last but not least, science and capacity building.Some characteristics of working scientific sustainability initiatives are that they are regional, place-based and solution-oriented. They are focusing at intermediate scales where multiple stresses intersect, where complexity is manageable, where integration is possible, where innovation happens, and where significant transitions toward sustainability can start bottom-up. And they have a fundamental character, addressing the unity of the nature – society system, asking how that interactive system is evolving and how it can be consciously, if imperfectly, steered through the reflective mobilization and application of appropriate knowledge and know-how. The aims of such sustainability-building initiatives conducted by researchers are: first to make significant progress toward expanding and deepening the research agenda of science and knowledge-building for sustainability; secondly to strengthen the infrastructure and capacity for conducting and applying science, research and technology for sustainability – everywhere in the world where it is needed; and thirdly, to connect science, policy and decision-making more effectively in pursuit of a faster transition towards real sustainable development. The overall characteristic is, that sustainability initiatives are mainly open-ended networks and dialogues for the better future. A world society that tries to turn towards sustainable development has to work hard to refine their clumsy technologies, in "earthing" their responsibility to all creatures and resources, in establishing democratic systems in peace and by heeding human rights, in building up global solidarity through all mankind and in commit themselves to a better life for the next generations.  相似文献   

20.
A growing body of research recommends interaction between managers and stakeholders to improve natural resource management decisions. While formative stakeholder research and summative evaluations of communication efforts have been well-studied, less research has included formative evaluations comparing managers and stakeholders to inform communication efforts. This study applies the communication concept of coorientation to the case of deer management on open-space lands owned by Cornell University and develops an approach to coorientation analysis for use with small decision-making teams. Mail surveys were used to assess the level of agreement and accuracy between decision makers and residents of nearby communities. Decision makers and residents varied in the topics for which they accurately predicted each other's responses; these differences have implications for approaches to communication. This study also illustrates the utility of coorientation research to reveal areas of difference within the decision-making team, as well as with the public.  相似文献   

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