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1.
This paper discusses the design and implementation of a citizen science pilot project, COMBER (Citizens' Network for the Observation of Marine BiodivERsity, http://www.comber.hcmr.gr), which has been initiated under the ViBRANT EU e-infrastructure. It is designed and implemented for divers and snorkelers who are interested in participating in marine biodiversity citizen science projects. It shows the necessity of engaging the broader community in the marine biodiversity monitoring and research projects, networks and initiatives. It analyses the stakeholders, the industry and the relevant markets involved in diving activities and their potential to sustain these activities. The principles, including data policy and rewards for the participating divers through their own data, upon which this project is based are thoroughly discussed. The results of the users analysis and lessons learned so far are presented. Future plans include promotion, links with citizen science web developments, data publishing tools, and development of new scientific hypotheses to be tested by the data collected so far.  相似文献   

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Emergy-based indicators are claimed to be useful outcomes of the emergy evaluation framework, which aims at guiding decision-makers toward environmental sustainability. The calculation of the Emergy Sustainability Index (ESI), in particular, seems widely consensual among emergy scholars, but several variants actually exist in the scientific literature, which may lead to different interpretations or misunderstanding of the ESI result. This paper proposes a semantic study of two variants in both components of the ESI (the Emergy Yield Ratio and the Environmental Loading Ratio, respectively EYR and ELR), to enhance standardization and reproducibility in the calculation of emergy indicators. It is shown that ESI can be consistently defined at the level of the production site as well as from a lifecycle perspective, although several case studies in the literature use an intermediary version with inconsistent system boundaries. A recent definition of lifecycle-oriented EYR is made operational by the development of an algorithm to be implemented in the emergy accounting software SCALE. However, the classification of foreground inputs needs further precision. ESI is also decomposed using partial derivatives, in order to analyze the influence of each input category and retrieve generic recommendations. These multiple outcomes demonstrate the added value of hybrid lifecycle-emergy evaluation to identify specific potential actions toward enhancing ESI of human activities.  相似文献   

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Indices provide a straightforward summary of the status of an object or concept. Examples of concepts are diverse and go from city quality of life, country level of freedom, human development to environment sustainability. This paper introduces a methodology to assess the reliability of the environmental sustainability index implemented by the Travel & Tourism Competitiveness Index that is published by the World Economic Forum using exploratory and confirmatory factor analyses.Results show that the original index is not reliable as most of the variables are weakly correlated. A simplified version of the original index is obtained by exploratory factor analysis and tested by confirmatory factor analysis. Measures of reliability show that the new index called TTESI – Travel & Tourism Environmental Sustainability Index – is reliable. Results also show that combining data from different sources (e.g., survey data and physical measurements) proves problematic. A z-score value for each country was computed and countries were ranked based on the TTESI. Additionally, the new index is more in line with the HDI – Human Development Index – and can therefore be integrated more easily in an overall index of sustainable development.  相似文献   

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Neighbourhoods are the building blocks of cities, which have their own architectural, cultural and economic systems. To improve neighbourhood sustainability, a consideration of their buildings, public spaces, infrastructure, and cooperation between their parts is necessary. Neighbourhoods are an integral part of urban planning activity, yet the development of neighbourhood assessment tools has just begun to spread.In the scope of this study, five assessment systems, CASBEE-UD, the 2009 and 2012 versions of the BREEAM Communities, LEED-ND, and DGNB-UD were compared. This paper presents the methodology and results of their comparative investigation. These systems categorise, measure, and rate their indexes and indicators differently, therefore it was necessary to integrate their processes to make them comparable. By means of a 3-level comparison and the indicator evaluation, the different neighbourhood sustainability assessment systems were compared in general as well as in detail.An evaluation based on the method provides information about the similarities, differences, and working methods of the systems, and this study can provide guidance in choosing a proper assessment system for a specific development, based on its detailedness, adaptability, and efficiency. It was also important to determine ways to improve the assessment systems.The study states that the DGNB neighbourhood sustainability system provided the best results in a comparison of their sustainability integration issues, the detailedness of their indicators, and their coverage of the pillars of sustainability. The newest systems synthesise the best qualities of each sustainability assessment tool. Meanwhile, the CASBEE tool differs from the others in the most aspects due to its different background. Finally, the LEED and BREEAM systems showed average results in main aspects.  相似文献   

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Increasing input self-sufficiency is often viewed as a target to improve sustainability of dairy farms. However, few studies have specifically analysed input self-sufficiency, by including several technical inputs and without only focussing on animal feeding, in order to explore its impact on farm sustainability. To address this gap, our work has three objectives as follows: (1) identifying the structural characteristics required by specialised dairy farms located in the grassland area to be self-sufficient; (2) analysing the relationships between input self-sufficiency, environmental and economic sustainability; and (3) studying how the farms react to a decrease in milk price according to their self-sufficiency degree. Based on farm accounting databases, we categorised 335 Walloon specialised conventional dairy farms into four classes according to their level of input self-sufficiency. To this end, we used as proxy the indicator of economic autonomy – that is, the ratio between costs of inputs related to animal production, crop production and energy use and the total gross product. Classes were then compared using multiple comparison tests and canonical discriminant analysis. A total of 30 organic farms – among which 63% had a high level of economic autonomy – were considered separately and compared with the most autonomous class. We showed that a high degree of economic autonomy is associated, in conventional farms, with a high proportion of permanent grassland in the agricultural area. The most autonomous farms used less input – especially animal feeding – for a same output level, and therefore combined good environmental and economic performances. Our results also underlined that, in a situation of decrease in milk price, the least autonomous farms had more latitude to decrease their input-related costs without decreasing milk production. Their incomes per work unit were, therefore, less impacted by falling prices, but remained lower than those of more autonomous farms. In such a situation, organic farms kept stable incomes, because of a slighter decrease in organic milk price. Our results pave the way to study the role of increasing input self-sufficiency in the transition of dairy farming systems towards sustainability. Further research is required to study a wide range of systems and agro-ecological contexts, as well as to consider the evolution of farm sustainability in the long term.  相似文献   

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The purpose of this study is to employ a nonlinear dynamic evaluation method to assess the tourism sustainability of Tibet Autonomous Region (TAR), China, a new emerging tourism destination. The methodology draws on system dynamics and Back Propagation (BP) neural network. According to 7 setting principles, this study identifies 13 tourism sustainability indicators including conventional tourism income, tourism resources stock, pollution stock, etc., as well as specific residents’ tourism cognition, seasonal difference, accessibility, etc. Then a system dynamics model including the 13 indicators (variables) and other relevant auxiliary variables is established. Based on the numerical simulation, using a three layers BP neural network optimized by genetic algorithm and particle swarm algorithm, this study evaluates the future sustainability dynamically and compares the sustainability evolution from 2014 to 2050 under different development strategies. The research results not only provide information useful for the dynamic control and scientific management of the future sustainable tourism development, but also provide a systems approach to evaluate regional tourism sustainability.  相似文献   

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Researchers and students at biological field stations, especially in remote areas, are subject to leaving “footprints,” as we conduct research, work, and live in sensitive ecosystems. These footprints include travel, personal trash and waste, and field equipment (e.g. flagging, tree markers, plot markers, trail markers, monitoring devices, etc.). In this commentary, we argue that the field of primatology's commitment to minimum impact research should be more explicitly and visibly integrated into our ethical protocols with regard to field research and instruction in sensitive environments. We review current ethical codes and potential solutions to reducing our “researcher footprints” while conducting fieldwork. Using Costa Rica as an example, we address how sustainable fieldwork differs among varying cultural contexts and argue that researchers should be made responsible and accountable for how our presence, research, and teaching might impact the environment. We conclude by recommending a set of guidelines to be added to ethical protocols regarding research design, station policies, and the conduct of research and teaching in the field. Am. J. Primatol. 75:1‐9, 2013. © 2012 Wiley Periodicals, Inc.  相似文献   

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森林资源可持续状况评价方法   总被引:6,自引:0,他引:6  
崔国发  邢韶华  姬文元  郭宁 《生态学报》2011,31(19):5524-5530
为了准确、快速地评估森林经营单位的森林资源可持续状况,提出了森林资源可持续状况的评价指标、评价方法和评价结果分级。森林资源可持续状况评价指标包括森林资源质量状况、森林资源利用状况和森林受干扰状况3个方面共28个评价指标。通过参照技术规定、查阅专业用表和使用经验数值等3种方法确定评价指标的基准值;根据基准值把评价指标测定值分级为"好"、"中"、"差"3个等级,并分别赋值1.0、0.62和0.38。利用专家咨询法或层次分析法,根据森林经营单位的主要经营目标和森林主导功能,确定森林资源质量状况评价指标的权重。根据评价指标的实测值、赋值和权重,计算森林资源质量状况指数、森林资源利用状况指数和森林受干扰状况指数,进而计算森林资源可持续状况指数。根据森林资源可持续状况指数值的大小,将森林经营单位的森林资源可持续状况划分为优、良、中和差四个等级。  相似文献   

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The vulnerability of rangeland beef cattle production to increasing climate variability in the US Great Plains has received minimal attention in spite of potentially adverse socioeconomic and ecological consequences. Vulnerability was assessed as the frequency and magnitude of years in which net primary production (NPP) deviated >±25% from mean values, to represent major forage surplus and deficit years, for a historic reference period (1981–2010), mid‐century (2041–2065), and late‐century (2075–2099) periods. NPP was simulated by MC2, a dynamic global vegetation model, driven by five climate projections for representative concentration pathway (RCP) 4.5 and 8.5. Historically, 4–4.7 years per decade showed either NPP surpluses or deficits. The future number of extreme years increased to 5.4–6.4 and 5.9–6.9 per decade for RCP 4.5 and 8.5, respectively, which represents an increase of 33%–56% and 38%–73%, respectively. Future simulations exhibited increases in surplus years to between 3 and 5 years in the Northern Plains and 3–3.5 in the Southern Plains. The number of deficit years remained near historic values of 2 in the Northern Plains, but increased in the Southern Plains from 2.5 to 3.3 per decade. Historically, NPP in extreme surplus and deficit years both deviated 40% from mean NPP in all three regions. The magnitude of deficit years increased by 6%–17% in future simulations for all three regions, while the magnitude of surplus years decreased 16% in the Northern Plains and increased 16% in the Southern Plains. The Southern Plains was the only region to exhibit an increase in the magnitude of both surplus and deficit years. Unprecedented future variability of NPP may surpass the existing adaptive capacity of beef producers and adversely impact the economic viability of rangeland cattle production and ecological sustainability of rangeland resources.  相似文献   

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The present study argues that there are heterogeneous farm systems within the drylands and each farm system is unique in terms of its livelihood asset and agricultural practice, and therefore in sustainability. Our method is based on household survey data collected from 500 farmers in Anantapur and Kurnool Districts, in Andhra Pradesh State of India, in 2013. We carried out principal component analysis (PCA) with subsequent hierarchical clustering methods to build farm typologies. To evaluate sustainability across these farm typologies, we adopted a framework consisting of economic, social and environmental sustainability pillars and associated indicators. We normalized values of target indicators and employed normative approach to assign different weights to these indicators. Composite sustainability indices (CSI) were then estimated by means of weighted sum of indicators, aggregated and integrated into farm typologies. The results suggested that there were five distinct farm typologies representing farming systems in the study area. The majority of farms (>70%) in the study area are small and extensive (typology 1); marginal and off farm based (typology 2). About 20% of the farms are irrigation based and intensive (typology 3); small and medium and off farm based (typology 4) and irrigation based semi-intensive (typology 5). There was apparent variability among farm typologies in terms of farm structure and functions and composite sustainability indices. Farm typologies 3 and 5 showed significantly higher performances for the social and economic indices, while typologies 2 and 4 had relatively stronger values for environment. These discrepancies support the relevance of integrated farm typology- and CSI approaches in assessing system sustainability and targeting technologies. Universally, for all farm typologies, composite sustainability indices for economic pillar was significantly lower than the social and environment pillars. More than 90% of farmers were in economically less-sustainable class. The correlations between sustainability indices for economic and environment were typology specific. It was strong and positive when aggregated for the whole study systems [all samples (r = 0.183; P < 0.001)] and for agriculture dependent farm typologies (e.g. typologies 1 and 3). This suggests the need to elevate farms economic performance and capacitate them to invest in the environment. These results provide information for policy makers to plan farm typology–context technological interventions and also create baseline information to evaluate sustainability performance in terms of progress made over time.  相似文献   

11.
景观可持续性与景观可持续性科学   总被引:11,自引:0,他引:11  
赵文武  房学宁 《生态学报》2014,34(10):2453-2459
人类活动已经剧烈地改变了自然环境,全球气候变化、生物多样性丧失、环境污染等种种迹象表明当今世界正处在一个不可持续的运行轨迹上,实现可持续发展成为21世纪人类面临的巨大挑战。景观是理解与塑造人类社会和环境关系最具操作性的尺度,也是提供景观服务,实现人类福祉最重要的场所。景观可持续性研究对于人类具有重要意义。景观可持续性是指特定景观所具有的、能够长期而稳定地提供景观服务、维护和改善本区域人类福祉的综合能力。景观可持续性具有跨学科、多维度特征,强调景观弹性和可再生能力;景观服务是景观可持续性研究中的重要概念,它是连接自然资本与人类福祉的关键桥梁,也是将景观可持续性与景观生态学紧密联系在一起的纽带。格局-过程-设计新范式的产生是景观可持续性研究的新发展。在景观可持续性快速发展的同时,聚焦于景观和区域尺度的景观可持续性科学应运而生。景观可持续性科学以景观格局、景观服务、人类福祉三者之间的动态关系为主要研究内容,充分融合了景观生态学空间显示方法、可持续性指标体系和GISRS等方法技术,其理论框架和研究方法体系正在逐步形成和完善之中。景观可持续性科学是可持续性科学的重要组成部分,虽然处于刚刚起步阶段,它必将成为未来十多年可持续性科学的研究热点。  相似文献   

12.
Research on social sustainability in developing countries has recently gained importance for both academics and practitioners. Studies in the supply chain management field take either a supplier or a manufacturer perspective that address predominantly corporate social responsibility (CSR) issues referring to the internal stakeholders. Our research integrates the literature on supplier, manufacturer, and customer responsibility and proposes the concept of supply chain social sustainability (SCSS) that refers to addressing social issues within the overall (upstream and downstream) supply chain. Furthermore, we develop and empirically validate scales for measuring SCSS using in-depth interviews and a survey in the Indian manufacturing industry. Our results suggest that SCSS consists of six underlying dimensions, namely equity, safety, health and welfare, philanthropy, ethics, human rights, in a 20-item valid and reliable scale. We discuss the implications of the findings for research and practice and suggest future research avenues.  相似文献   

13.
Positive reinforcement training techniques were used to gain the cooperation of a socially housed, 3-year-old, insulin-dependent diabetic chimpanzee (Pan troglodytes) in obtaining blood and urine samples for monitoring of glucose levels. A urine collection device, adaptable to many types of caging, allowed collection of urine from the diabetic subject as well as other trained, socially housed animals in their home cages. Four years after initial training, the diabetic subject continued to urinate into the container any time of the day or night, usually within 2 min of presentation of the cue, without removal from the home cage or separation from her companions. Blood samples were readily obtained from the subject by heel puncture or venipuncture. © 1996 Wiley-Liss, Inc.  相似文献   

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Background, Aim and Scope Sustainability is a well recognised goal which is difficult to manage due to its complexity. As part of a series of sustainability management tools, a Product Sustainability Index (PSI) is translating the sustainability aspects to the organization of vehicle product development of Ford of Europe, thus allocating ownership and responsibility to that function. PSI is limiting the scope to those key environmental, social and economic characteristics of passenger vehicles that are controllable by the product development organisation. Materials and Methods: The PSI considers environmental, economic and social aspects based on externally reviewed life cycle environmental and cost aspects (Life Cycle Assessment, Cost of ownership / Life Cycle Costing), externally certified aspects (allergy-tested interior) and related aspects as sustainable materials, safety, mobility capability and noise. After the kick-off of their product development in 2002, the new Ford S-MAX and Ford Galaxy are serving as a pilot for this tool. These products are launched in Europe in 2006. The tracking of PSI performance has been done by engineers of the Vehicle Integration department within the product development organization. The method has been translated in an easy spreadsheet tool. Engineers have been trained within one hour trainings. The application of PSI by vehicle integration followed the principle to reduce the need for any incremental time or additional data to a minimum. PSI is adopted to the existing decision-making process. End of 2005, an internal expert conducted a Life Cycle Assessment and Life Cycle Costing (LCC) study for verification purposes using commercial software. This study and the PSI have been scrutinized by an external review panel according to ISO14040 and, by taking into consideration the on-going SETAC, work in the field of LCC. Results: The results of the Life Cycle based indicators of PSI as calculated by non-experts are fully in line with those of the more detailed expert study. The difference is below 2%. The new Ford Galaxy and Ford S-MAX shows significantly improved performance regarding the life cycle air quality, use of sustainable materials, restricted substances and safety compared to the previous model Galaxy. The affordability (Life Cycle Cost of Ownership) has also been improved when looking at the same engine types. Looking at gasoline versus diesel options, the detailed study shows under what conditions the diesel options are environmentally preferable and less costly (mileage, fuel prices, etc.). Discussion: The robustness of results has been verified in various ways. Based also on Sensitivity and Monte-Carlo Analysis, case study-specific requirements have been deduced defining criteria for a significant environmental improvement between the various vehicles. Only if the differences of LCIA results between two vehicles are larger than a certain threshold are the above-mentioned results robust. Conclusions: In general terms, an approach has been implemented and externally reviewed that allows non-experts to manage key environmental, social and economic aspects in the product development, also on a vehicle level. This allows mainstream functions to take ownership of sustainability and assigns accountability to those who can really decide on changes affecting the sustainability performance. In the case of Ford S-MAX and Galaxy, indicators from all three dimensions of sustainability (environment, social and economic) have been improved compared to the old Ford Galaxy. Recommendations and Perspectives: Based on this positive experience, it is recommended to make, in large or multinational organizations, the core business functions directly responsible and accountable for managing their own part of environmental, social and economic aspects of sustainability. Staff functions should be limited to starting the process with methodological and training support and making sure that the contributions of the different main functions fit together.  相似文献   

17.
The efficiency of two fungal conservation methods was compared: Suspension in sterile distilled water and subcultures on potato dextrose agar (PDA) slants at 4 °C. One hundred and eleven strains corresponding to 84 different-species of microorganisms studied in medical mycology were evaluated. The efficiency of each method was estimated by the survival percentage and the preservation of the morphological features of each strain within a seven-year period. From the 111 strains, 79 (71.2%) were preserved viable in water, compared to 86 (77.5%) strains preserved by subculture on PDA slants. Concerning morphological features 75 of the 79 water viable strains (94.9%) conserved their morphology. In contrast, only 60 of the 86 strains (69.8%) conserved their typical morphology by the PDA subculture method. The water conservation method offers important benefits over serial subculture such as: Minimal pleomorphism, simple, rapid and requiring few materials. Thus, the water conservation method is recommended for laboratories where specialized conservation equipment is not available.  相似文献   

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Advances in scientific technology in the early twentieth century have facilitated the development of synthetic plastics that are lightweight, rigid, and can be easily molded into a desirable shape without changing their material properties. Thus, plastics become ubiquitous and indispensable materials that are used in various manufacturing sectors, including clothing, automotive, medical, and electronic industries. However, strong physical durability and chemical stability of synthetic plastics, most of which are produced from fossil fuels, hinder their complete degradation when they are improperly discarded after use. In addition, accumulated plastic wastes without degradation have caused severe environmental problems, such as microplastics pollution and plastic islands. Thus, the usage and production of plastics is not free from environmental pollution or resource depletion. In order to lessen the impact of climate change and reduce plastic pollution, it is necessary to understand and address the current plastic life cycles. In this review, “sustainable biopolymers” are suggested as a promising solution to the current plastic crisis. The desired properties of sustainable biopolymers and bio‐based and bio/chemical hybrid technologies for the development of sustainable biopolymers are mainly discussed.  相似文献   

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