排序方式: 共有54条查询结果,搜索用时 62 毫秒
51.
Flash floods are characterized by their suddenness, fast and violent movement, rarity, small scale but high level of damage. They are particularly difficult to forecast accurately and there is little lead time for warning. This makes motorists especially vulnerable. Assuming that these flash flood hazard specificities may be the significant factors leading to difficulties for drivers to perceive danger, we used cognitive mapping combined with GIS data processing to assess motorists’ flash flood risk perception on their daily itineraries. The analysis of 200 mental maps collected allows planners to have maps highlighting dangerous areas where risk perception is weak and to identify reasons for this. 相似文献
52.
This paper studies the design of a mining concession contract as a multi-period adverse selection problem where production is the depletion of a non renewable resource. Compared with symmetric information, we show that overproduction is optimal in the terminal phase of the resource extraction program. Moreover, asymmetric information lengthens the contract duration but reduces the scarcity rent. 相似文献
53.
Pablo Campos François Bonnieux Alejandro Caparros Jean-Christophe Paoli 《Journal of Environmental Planning and Management》2007,50(1):65-85
Enough advances have recently been made in income accounting theory to recommend that environmental services accruing either to the forest owner or to the general public should be included in the forest accounting system. In this study, the results of two case studies, one in Bonifatu, Corsica (France) and the other in Alcornocales, Andalusia (Spain), show that private environmental services provide the majority share of social total sustainable income in Alcornocales (29%), whereas public environmental services are the most relevant in Bonifatu (32%). The social total sustainable income measured by the agroforestry accounting system is, respectively, 1.6 and 2.4 times higher than the income estimated by economic accounts for forestry in Alcornocales and Bonifatu forests. 相似文献
54.
Augeraud-Veron Emmanuelle Pereau Jean-Christophe 《Environmental Modeling and Assessment》2022,27(4):693-713
Environmental Modeling & Assessment - The design of optimal water policies between farmers, municipalities, and groundwater-dependent ecosystems is analyzed in a hydro-economic model with... 相似文献