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The increasing demand on water in the Soviet Union and the problem of assuring water quality require the construction of long-term water-management balances by drainage basins. These balances, based on predicted demand and water availability, would suggest the need for water-management projects within basins and interbasin transfers. Water needs would be evaluated both in terms of water requirements by categories of users and in terms of water quality. The most crucial regional problems involve the increasing shortage of water in Central Asia (with the prospect of interbasin transfer from Siberia) and in southern regions of the European USSR (with the problem of diverting water southward from the northern runoff slope). The Caspian Sea is expected to require a supplementary inflow of 80 to 100 cubic kilometers a year by the end of the century if the decline of its waterlevel is to be arrested. But southward diversion of northern waters is not expected to add more than 50 to 70 km3 at best, with a possible saving of an additional 10 to 20 km3 through decline of evaporation from a reduced Caspian Sea surface. The preservation of conditions in the Sea of Azov, the Aral Sea and Lake Balkhash pose additional water problems. [The senior author died in October, 1974].  相似文献   

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Soledad Garciat† 《对极》1993,25(3):191-205
This paper examines the restructuring of the local economy in Spain's largest cities, particularly Barcelona, but also Madrid and Seville, in relation to the main changes that have taken place in the urban environment since local democracy was re-established after the elections of 1979. This involves an analysis of the real capacity and impact of local council intervention in the economy and in the extension of the social dimension of citizenship. Despite their relatively small resources, local administrations have in the last few years attempted to create a more dynamic approach of leading, or at least collaborating in, economic and social reconstruction. The increasing role of localities in the economy has been particularly important since, in addition to counteracting a strong centralist tradition, it has coincided with the emergence of a new urban democratic arena which permits more social participation. However, the restructuring of state political and administrative power remains problematic at the local level due not only to the historical will of central government to apply a homogeneous pattern to heterogeneous urban realities, but also to the control that new regional governments seek to exercise over cities.  相似文献   

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Lamb  H. H.; Ingram  M.J. 《Past & present》1980,88(1):136-141
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The proposed grand Canal project calls for the damming of James Bay and the diversion of its water southward. This first part of a two-part study models some potential impacts on the climate, water balance, and growth patterns in the James Bay coastal zone. Use is made of a linear relationship of Bowen ratio and temperature, developed from studies of coastal wetlands in southern and northwestern James Bay and central Hudson Bay. It is hypothesized that changing James Bay into a fresh-water lake and disrupting its coastal currents would result in a delayed Bay ice melt of unknown length in the spring. Allowing a delay to vary between 0 and 30 days results in the prediction of lesser evaporation and greater water surplus. These differences in magnitude increase with the length of delayed melt, but in all cases are most strongly evident during the peak of the growing season. Colder and wetter conditions would have a strong ecological impact on all coastal areas of western and southern James Bay. In the northwest this could change the species composition of coastal flora, cause forests to retreat from the coast, and result in the growth of permafrost there.  相似文献   

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A lot of places won't hire people from the South. They say, “They won't work.” If they paid a little bit more money they might damn work a lot bit better. Like Chicago Cork, you know what they pay an hour? A dollar and a quarter an hour. And I wouldn't work for no sonofabitch for no dollar and a quarter an hour. Shit, I'd steal off the street first. Can't pay your rent on it. Now down home I'd work for a dollar and a quarter an hour, but that's different. You know what they should do? They should take some a these damn factories, say from Chicago, and just spread em around, you know. Not just only in this state but in different states, or make more in different states or somethin. People from the South down there, they have to leave to come up to this shithole. They don't want up here. That's the only other place. You gotta realize these goddamn people from the South is the ones run most of these plants—most of their employees is people from the South. I can't understand them sonofabitch factories.  相似文献   

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The use of personal income sources instead of labour force as an indicator of urban economic base differences offers another perspective on the character of cities. This analysis discovered that cities were becoming less dependent on income from employment, thereby downgrading the effectiveness of labour force as an economic base indicator, and more dependent on income from investments and pensions. Significant variations in income sources were revealed both by region and by size of city. In general, the smaller the city, the higher the proportion of income from pension-government sources, and the larger the city, the higher the proportion from investments.
L'utilisation des sources de revenu personnel au lieu de celles de la main-d'oeuvre comme indicateur des differences de base économique urbaine offre une autre perspective sur le caractere des villes. I1 a étéétabli que les villes deviennent de moins en moins dependantes des revenus provenant des emplois, déclassant ainsi I'efficacité de la main-d'oeuvre en tant qu'indicateur de base econornique, et de plus en plus dbpendantes des revenus provenant d'investissements et de pensions. Des variations significatives ont été mises en évidence dans les sources de revenu par rapport à la région et à la taille d'une ville. En règle générale, plus la ville est petite plus la proportion du revenu provenant des pensions du gouvernement est élevée, et plus la ville estgrandeplus la proportion du revenu provenant d'investissements est élevée.  相似文献   

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A distinguishing factor of western societies is their consumption of energy. In 1986, Canada, the United States, and Australia had per capita consumption rates of 6.3, 4.7, and 3.2 times the global rate, respectively (DIESA 1988). Much of this energy is supplied by fossil fuels. At present, fossil fuels are economically attractive and their relatively high energy densities make them particularly attractive for transport purposes. However, their supply is finite (particularly in the case of petroleum) and their consumption produces atmospheric pollution. The depletion of fossil fuels or a rapid global warming of the atmosphere may eventually force changes in the way developed countries use energy (Lowe 1989). As everyone is an energy consumer, changes in consumption at a societal level are linked with changes at a personal level.  相似文献   

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Abstract

Biltmore Mound, located on the Swannanoa River in Asheville, North Carolina, was constructed over a Connestee phase habitation, the earliest evidence dating to about A.D. 300. Mound construction began sometime between A.D. 400 and 550, with the second to last mound stage constructed about A.D. 580–600. Because of the diverse contexts and the excellent preservation of faunal remains, we are able to provide some insights into Connestee ritualism at Biltmore Mound. The Biltmore Mound was a platform used to support large public structures for ritual and ceremonial activities. It was constructed of varying colored and textured soils from a variety of source areas that arguably had symbolic importance. The mound was primarily built out (rather than up) with several mantles that may have comprised a complete ritual cycle of mound construction.  相似文献   

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