Search results for "Natural resource"
showing 10 items of 482 documents
Evaluación multicriterio de políticas de uso y gestión de recursos naturales
2014
The purpose of this work is show the characteristics of different environmental economic assessment methodologies, and exposes a case study where possible alternatives addressed to reduce the contamination of a bay with multicriteria approach are evaluated. The results obtained show the effectiveness of multicriteria analysis to evaluate the alternatives for solution of contamination problem in a bay. Economic evaluation of the contamination effects integrated to the environmental, social and economic dimensions through multicriteria techniques allows an alternative planning to solve the environmental problem studied, providing the right decision.
Quantifying trade-offs between ecological gains, economic costs, and landowners' preferences in boreal mire protection.
2021
Private land often encompasses biodiversity features of high conservation value, but its protection is not straightforward. Commonly, landowners’ perspectives are rightfully allowed to influence conservation actions. This unlikely comes without consequences on biodiversity or other aspects such as economic considerations, but these consequences are rarely quantitatively considered in decision-making. In the context of boreal mire protection in Finland, we report how acknowledging landowners’ resistance to protection changes the combination of mires selected to conservation compared to ignoring landowners’ opinions. Using spatial prioritization, we quantify trade-offs arising between the amo…
The Economic Impact of the South-North Water Transfer Project in China: A Computable General Equilibrium Analysis
2006
Water resources are unevenly spread in China. Especially the basins of the Yellow, Hui and Hai rivers in the North are rather dry. To increase the supply of water in these basins, the South-to-North Water Transfer project (SNWT) was launched. Using a computable general equilibrium model this study estimates the impact of the project on the economy of China and the rest of the world. We contrast three alternative groups of scenarios. All are directly concerned with the South-to-North water transfer project to increase water supply. In the first group of scenarios additional supply implies productivity gains. We call it the "non-market" solution. The second group of scenarios is called "marke…
Adjusting to Climate Change: Implications of Increased Variability and Asymmetric Adjustment Costs for Investment in Water Reserves
1997
Abstract In this paper we study the determination of optimal water storage capacity in a region, taking into account that the supply of the resource, the flow into the reserve, is uncertain, that a measure of the uncertainty, the variance, is likely to increase with climate change, that building capacity is costly, and that the development of water resources may entail alsoenvironmental costs. We find that water storage capacity in the long run ispositivelyrelated to increases in uncertainty if the marginal benefit of water withdrawal isconvexand that, for the case of costly reversibility of investment, a range of inaction for investment appears, and the stability of water storage capacity …
Alternative Energy Policy for Mitigating the Asynchrony of the Wind-Power Industry’s Supply Chain in Brazil
2018
High dependency on hydroelectricity has revealed drawbacks in the security of power supplies as a consequence of the climate variability in South America. Under these conditions, Brazil is starting to consider alternative renewable sources for energy production, seeking to avoid periods of scarcity while also promoting clean technologies in its electricity market. Since 2004, wind power has shown a significant rise in terms of installed capacity in this country. Despite increases in wind-power units, Brazil suffers from delays in setting up its transmission infrastructure, which affects the performance of the wind-power supply chain. This chapter presents a simulation model that helps asses…
Disentangling canid howls across multiple species and subspecies: Structure in a complex communication channel
2016
Wolves, coyotes, and other canids are members of a diverse genus of top predators of considerable conservation and management interest. Canid howls are long-range communication signals, used both for territorial defence and group cohesion. Previous studies have shown that howls can encode individual and group identity. However, no comprehensive study has investigated the nature of variation in canid howls across the wide range of species. We analysed a database of over 2000 howls recorded from 13 different canid species and subspecies. We applied a quantitative similarity measure to compare the modulation pattern in howls from different populations, and then applied an unsupervised clusteri…
Neoextractivism, or the birth of magical realism as world literature
2021
In recent years, literary criticism has shown increased interest towards the manner in which fiction depicts (neo)extractivism as a set of practices whereby large quantities of natural resources ar...
Terres et pierres pour matières de cultures : l'apparition et la diffusion de nouveaux modes et matériaux de construction dans le Nord-Est de la Gaul…
2017
Roman building materials often arose a growing interest through their presence in early contexts, sometimes way before Gallic Wars. Made from natural resources, their final shape corresponds to anthropogenic and cultural constraints. However, even if building materials are not neglected during archaeological excavations, so far they have been considered as playing a minor part in understanding ancient sites. Economical, technical and architectural aspects are regularly mentioned, creating the picture of an exploited « landscape » around the studied areas, but the question of materials as cultural markers witnessing intercultural relations between Rome and Gallic tribes has never really been…
Appearance and use of Roman roofing materials in the region of the Aedui and Lingones
2014
Römische Konstruktionstechniken und Baustoffe können als Anzeichen für Romanisierung gewertet werden. Sie legenZeugnis von den veränderten Verhaltensweisen ab, wie die Haeduer und die Lingonen mit den natürlichen Ressourcenumgingen, um diese Materialien zu produzieren. Es können deutliche Unterschiede zwischen diesen beiden gallischenStämmen hinsichtlich des Einsatzes von Ziegel- und Steindächern beobachtet werden. Die Haeduer verwenden meistensZiegel für ihre Dächer, selbst wenn die lokal verfügbaren natürlichen Ressourcen eine Produktion dieses Baustoffesnicht erlauben. Im Gegensatz dazu kommen bei den Lingonen Ziegel nur dann zum Einsatz, wenn die entsprechendenRessourcen vorhanden …
Fleurey-sur-Ouche (Côte-d’Or). Maison de santé [notice archéologique]
2019
Une troisième fouille, dans un même secteur au centre du village de Fleurey-sur-Ouche, a pu compléter les informations déjà récoltées suite aux différentes opérations menées depuis 2015. La fouille, sur une surface de 2 745 m2, a mis au jour une occupation dense, constituée principalement de structures en creux pour la première phase du Moyen Âge central ; la seconde phase est, elle, matérialisée par des bâtiments dotés de caves, remblayées, selon les premières observations, au XIIIe s.