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971.
Rusidan Lubis Michael V. Martin B. Starr McMullen 《Journal of the American Water Resources Association》1987,23(4):673-680
ABSTRACT: Grain transportation is a major economic activity on the multiple use Snake-Columbia River System. Congress is currently considering increased transportation user fees aimed at recapturing federal expenditures for waterway operations and maintenance. Three types of fee structure and four levels of cost recovery are evaluated using a network program model. In each case traffic is diverted away from the river to other Puget Sound ports via truck and rail transport modes. Grain shippers in the region will be adversely affected by a higher transport bill. The Lower Columbia River port economic activities will be negatively affected; however, competitive uses of the river, recreation, and hydroelectric generation will likely benefit modestly. 相似文献
972.
Tonja Koob Michael E. Barber Wade E. Hathhorn 《Journal of the American Water Resources Association》1999,35(2):323-331
ABSTRACT: The successful design of constructed wetlands requires a continuous supply of water or vegetation that can withstand drought conditions. Having a constant water source is the best alternative to insure species diversity throughout the season. Consequently, detention structure designs should be based on times between events as well as on hydrologic return periods, since between events is when most evaporation and infiltration losses are likely to occur. In arid or semi-arid environments, this is a difficult process because of long interevent times and seasonal changes in precipitation patterns. This discussion is predicated on the assumption that phytoplankton, epiphytic algae, and emergent vegetation require moist conditions to be effective at removing nutrients, metals and other pollutants. There are drought tolerant species of vegetation that can be used in constructed wetlands but it may take several days to re-establish the attached bacteria communities necessary for optimum pollutant removal. This paper examines a stochastic framework to examine the probability of extended dry periods based on historic rainfall data. The number of consecutive dry days is selected for a specified level of assurance. By multiplying this value by the sum of daily system losses, an overall pond volume can be determined that ensures a minimum depth of water. To illustrate the utility of the approach, the method is applied to a site in Spokane, Washington. 相似文献
973.
974.
Steven P. McCulloch Michael J. Reiss 《Journal of Agricultural and Environmental Ethics》2017,30(4):551-563
Bovine tuberculosis (bovine TB) is the most important animal health and welfare policy issue in Britain. Badgers are a wildlife reservoir of disease, although the eight-year Independent Scientific Group (ISG) Randomised Badger Culling Trial concluded with a recommendation against culling. The report advised government that bovine TB could be controlled, and ultimately eradicated, by cattle-based measures alone. Despite the ISG recommendation against culling, the farming and veterinary industries continued to lobby government for a badger cull. The 2005–2010 Labour government followed the ISG advice and decided against a cull. The 2010–2015 Coalition and the 2015-present Conservative governments have followed a badger culling policy. This paper investigates whether a virtuous government would cull badgers. It provides an overview of virtue theory in the context of government animal health and welfare policy. Bovine TB and badger control policy options are then analysed in the context of the virtues of justice, wisdom, integrity, loyalty, curiosity, trust, empathy, compassion and aesthetics. Justice is the first virtue of government, and badger culling is seriously problematic from a virtue perspective given that five badgers are culled per cow that avoids slaughter as a result. Analysis based on other virtues strongly suggests that government should not cull badgers. The paper concludes that a virtuous government would not cull badgers as part of policy to control bovine TB in cattle. 相似文献
975.
976.
Michael Peters 《Journal of Environmental Planning and Management》2004,47(3):449-473
This paper briefly assesses the economic efficiency case for voluntary initiatives (VIs), discusses some limitations of this type of policy instrument and goes on to consider the role that local‐scale voluntary initiatives might play in assisting small and medium sized enterprises (SMEs) to embrace the issue of environmental performance improvement. The paper examines SME organizational management in relation to the likely effectiveness of their participation in voluntary environment programmes. An environmental attitudes survey carried out with 62 SMEs in East Anglia found that willingness to become involved in such initiatives does exist, but that a better presentation of opportunities for prospective small firms, together with a more tailored approach, will be necessary if VIs for SMEs are to become a more extensive feature of environmental policy making in the UK. 相似文献
977.
Investigating public decisions about protecting wetlands 总被引:7,自引:0,他引:7
Getzner M 《Journal of environmental management》2002,64(3):237-246
Quantitative analyses of species protection decisions taken by public authorities regularly show that ecological factors, such as the probability of extinction, often play a minor role in the decision-making process. The taxonomy of the species or its potential conflict with economic development is a more powerful factor. This paper presents quantitative empirical research on the protection of wetlands in Austria. Econometrically estimated models show that geographical and ecological factors (such as the size of the area, elevation and importance for biodiversity) play a significant role in the protection of wetlands. Additional influences include conflict variables encoding the negative effects of the primary economic sector (agriculture) or tourism. 相似文献
978.
979.
980.
Kuho Lin Michael Y.-P. Peng Muhammad Khalid Anser Zahid Yousaf Arshian Sharif 《Corporate Social Responsibility and Environmental Management》2021,28(2):640-647
The study aims to find out the effect of environmental management initiatives (EMI) on corporate social responsibility (CSR) authenticity and CSR legitimacy. The current study also examines the influence of CSR authenticity on CSR legitimacy and mediating effect of CSR authenticity in the connection between EMI and CSR legitimacy. Data were collected from 309 managers of hotels and tourism industries. Statistical techniques such as correlation and regression were used through AMOS 7.0 software for data analysis. Results reveal that EMI positively predicts CSR authenticity. Moreover, CSR authenticity significantly predicts the CSR legitimacy. The direct link between EMI and CSR legitimacy is also positive and significant. The findings also reveal that CSR authenticity mediates the relationship between both EMI and CSR legitimacy links. These findings suggested that managers in hotel and tourism industry should participate in CSR activities and well-being of the societies using the organizational resources for attaining CSR legitimacy. 相似文献