共查询到20条相似文献,搜索用时 15 毫秒
1.
Nnamdi Egbuniwe 《Journal of the American Water Resources Association》1976,12(2):393-398
ABSTRACT. The Governments of Nigeria have planned to build 395 dams in the next five years. Such water resources development may increase the incidence of Schistosomiasis, Malaria, Onchocerciasis, and Trypanosomiasis. Adequate measures should be taken to minimize adverse effects of the projects on the public health. 相似文献
2.
Jackie Sellers Ronald M. North 《Journal of the American Water Resources Association》1979,15(1):189-197
ABSTRACT: In this article a managerial approach to developing and implementing National Water Resources policy is suggested. Proper consideration can be given to national economic development (NED), environmental quality (EQ) and conservation and still result in an implementable policy at the operational level if proper incentives are built into the process with proper attention to alternate non-Federal cost sharing rates. Not only can these multiple objectives be entertained but the Administration and Congress will have a management tool that should ensure a certain probability of success. 相似文献
3.
Robert C. Waters 《Journal of the American Water Resources Association》1980,16(2):256-260
ABSTRACT: Federal spending on water resource development projects exceeds $10 billion annually. This paper examines the economic theory and practice on which the Federal water resource development plans are based. Existing theoretical and applied problems result in overinvestment. These include 1) no standard of value for the tradeoff of environmental objectives with economic objectives; 2) benefits based on “willingness to pay,” but beneficiaries pay only a fraction of a project's costs; 3) beneficiaries “shop around” among program purposes in order to reduce their commitments; and 4) benefit/cost (B/C) analyses are based on a discount rate, which is consistently below the Federal borrowing rate. Furthermore, the Government Accounting Office (GAO) frequently finds that the agency regulations are inadequate and result in inconsistent and questionable benefit computations. The President has proposed a series of water policy reforms, to reduce some of the apparent overinvestment in water resource development, but fundmental corrective action rests with the members of Congress. 相似文献
4.
B. A. Christensen 《Journal of the American Water Resources Association》1973,9(6):1201-1209
ABSTRACT: A significant water-resources problem in Florida and other coastal states where the ground-water resources are threatened by salt-water intrusion or direct pollution from septic tanks, canals or marinas, is the almost explosive urban development of the limited coastal zone without or with only little water related planning. The reported study deals with the establishment of methods for identification of areas which are suitable for development and of areas where complete preservation or controlled and limited development should be encouraged. A methodology using data input available from such federal and state agencies as the USGS, the U. S. Weather Bureau, and the various State Geological Surveys is developed and brought on a graphic form that will guide the planning process and allow the urban planner even without a background in geohydrology or water-resources engineering to identify the problem areas. 相似文献
5.
ABSTRACT: Because of its importance and the perceived inability of private sector sources to meet water demands, many countries have depended on the public sector to provide water services for their populations. Yet this has resulted in many inefficient public water projects and in inadequate supplies of good quality and reliable water. Decentralization of water management, including the use of water markets, cannot solve all of these water problems, but it can improve the efficiency of water allocation. When given adequate responsibility and authority, water user associations have effectively taken over water management activities at a savings to tax payers. Moreover, water markets add the potential benefit of improving water efficiency within a sector as well as providing a mechanism for reallocating water among sectors. The key question involves developing innovative mechanisms for reducing the transaction costs of organizing water users and of making water trades. Water rights need to be established which are recorded, tradable, enforceable, and separate from land if markets are to operate effectively. Also, institutions are needed that effectively resolve conflicts over water rights, including third party impacts and water quality concerns. 相似文献
6.
Anat Arbhabhirama Shlomo Angel Marcia R. Brewster 《Journal of the American Water Resources Association》1981,17(3):483-493
This paper discusses strategies for the development of water resources, emphasizing the delivery of reliable water supplies, for both domestic and production purposes, to every village and to every farmer. This necessitates a shift of emphasis from the construction of large storage reservoirs to the construction, operation, and maintenance of water distribution systems capable of reaching the largest number of farms, and a shift from projects that benefit the few, to projects that benefit the many. Water distribution in this context takes on three interrelated meanings: a geographical meaning, a technical meaning, and an economic meaning. The geographical meaning focuses on the spatial distribution of the recipient population as a key to identifying the proper distribution of water projects in physical space. The technical meaning relates to the physical distribution of water through canal systems to the farmers' fields. The economic meaning refers to the equitable distribution of benefits from water projects. The paper provides an illustration of the need for an emphasis on distribution, using the state of development of water resources in northeast Thailand as an example, with a proposed program for the further development of these resources. The northeast, the poorest region in the country, has been recognized by the Government of Thailand as a priority area for accelerated regional development efforts. 相似文献
7.
Gary D. Lynne 《Journal of the American Water Resources Association》1977,13(1):93-107
ABSTRACT: Society has many objectives, many of which are not commensurable. This incommensurability problem is generally referred to as the multiple objective problem and leads to the notion of tradeoffs. Various approaches to calculating tradeoffs in water resource development have been advocated by several authors. Many have made errors in the context of the conceptural model presented in this paper. It is argued the correct framework for tradeoff analysis is the neoclassical economic model. The relevant tradeoffs, then, are really price ratios. These, in turn, must be calculated in such a manner as to allow comparison of product mixes where the expenditure on resources is the same. This is where several authors have erred. An empirical example which illustrates the correct application of the model is presented. 相似文献
8.
Fred M. Shelley F. Andrew Schoolmaster Rebecca S. Roberts 《Journal of the American Water Resources Association》1986,22(3):485-493
ABSTRACT: Since 1957, Texans have had the opportunity to vote on eight referenda concerning the allocation of state funds for water resources development and the maintenance of water quality. In 1976, a water development amendment and a water quality amendment were presented simultaneously to the voters of Texas, affording a unique opportunity for electoral-geographic comparison of county-level returns on the two issues. In this paper, cartographic and statistical analyses of the county-level voting outcomes for each referendum are presented. In both cases, the referenda were supported by voters in water-deficient West Texas, especially those counties dependent on irrigated crop production. In contrast, urban voters and East Texans tended to oppose both amendments. However, support for the water quality amendment in the urbanized areas of Dallas-Fort Worth, Austin, and San Antonio enabled this amendment to pass statewide while its counterpart failed. The results highlight the importance of local differences in perceived water policy needs, and in doing so they illustrate that geographical anlaysis of returns from initiatives and referenda is a useful tool for understanding the locational conflicts underlying water resources and other policy efforts. 相似文献
9.
Leonard R. Brown 《Journal of the American Water Resources Association》1976,12(6):1181-1190
ABSTRACT: For many years, Federal water resources projects have been subjected to benefit-cost analysis to establish their economic feasibility. Several years ago social well-being was added as a consideration. This paper discusses the state-of-the-art in analyzing and evaluating aspects of social well-being. It stresses current short-falls and advocates a direction for further efforts. 相似文献
10.
Warren Viessman 《Journal of the American Water Resources Association》1985,21(2):311-314
Understanding social goals and objectives and incorporating them in water resources planning, management, education and engineering processes is the key to solving many current and emerging water resources problems. Water resources professionals must turn more of their attention to this issue. Various avenues are open for their involvement. They include lobbying, participating in government, education and research, publishing, establishing institutions, interacting with the public and analyzing existing systems. 相似文献
11.
ABSTRACT India's multidimensional water development programs have contributed significantly to the promotion of the country's economic growth. Rapid growth of irrigation has substantially increased agricultural production. Hydro power generation has doubled during the last two decades, and this has accelerated industrialization and extended rural electrification. Minor irrigation has taken on a new importance in the Fourth Five Year Plan, signifying a departure from the earlier Plans. “Green Revolution” owes a large measure of its success to the availability of assured water supplies. Water development projects have also generated tremendous employment opportunities. Despite its pronounced impact on the economy, India's water planning strategy has some glaring weaknesses: the failure to incorporate “indirect benefits” in cost-benefit calculations; the under-utilization of water potential; and, the progressive increase in the cost of irrigating an acre of land. The prevailing institutional structure in India constitutes a major deterrent to the diffusion of the benefits of water development. There are stubborn psychological factors which render the adoption of innovative irrigation practices difficult. There is thus an overwhelming need to revamp India's institutional framework. On balance, however, water development in India has made its impact felt on India's myriads of villages. And from the arid “dust bowls” of India new life has emerged. 相似文献
12.
William Goldfarb 《Journal of the American Water Resources Association》1997,33(2):255-259
ABSTRACT: Effectively teaching water resources policy to university science and engineering students is both important and difficult. Most careers in the water resources field require an understanding of the comprehensive governmental regulatory structure affecting water use. Also, few science and engineering curricula encourage their students to take policy courses. Successful approaches to teaching water resources policy might include epistemological comparisons, case studies, issue maps, and interactive simulations. Obstacles to the effective teaching of this subject include students' insufficient preparation and student disdain and cynicism. These obstacles may be mitigated by requiring a prerequisite, developing a glossary of policy-related terms, and introducing the course through lectures emphasizing realistic views of the water resources management field and the nature of the American political system. 相似文献
13.
William B. Lord 《Journal of the American Water Resources Association》1981,17(6):1060-1065
ABSTRACT: The Water Resources Council's Principles and Standards stipulate that plans should be formulated to meet national, regional, state, and local needs or problems. It is not clear, however, how appropriate consideration can be given to both national objectives (NED and EQ) and local needs and problems. Two methods of incorporating national objectives and local problem solving into water resources planning are examined. They are plan formulation primarily in pursuit of national objectives, and plan formulation to solve local problems, but constrained by national objectives. The first of these methods is the approach which is becoming increasingly explicit in the development and elaboration of the Water Resources Council's Principles and Standards. The analysis indicates that the Water Resources Council's approach is neither the most practical nor the most desirable of the two methods examined. It creates unnecessary difficulties and fails to achieve its purpose. Plan formulation to solve local problems, but constrained by national objectives not only describes what field planners actually do, but is also more practial and more desirable. 相似文献
14.
Wendell J. Lorio Billy M. Teels Earl D. Norwood 《Journal of the American Water Resources Association》1972,8(3):505-515
ABSTRACT Two lakes having similar soil types were studied to determine the effects of age and water fluctuations on plankton, benthos and fish populations. Bluff Lake is an older man-made lake which is drawn down in the mid-summer. Oktibbeha County Lake is a young lake and the water levels are maintained. Chemistry data from the two lakes indicate that their chemical properties are very similar. Neither lake would be considered very fertile. Net plankton populations in Bluff Lake and Oktibbeha County Lake were comparable when analyzed on a number of organisms per liter basis. Fluctuations of water levels did not seem to have an effect on the net plankton populations. The benthic population in Bluff Lake is slightly higher than that found in Oktibbeha County Lake. This is true for both numbers and weight per square meter. The species composition of benthic organisms in the two lakes were similar. Based on one-acre samples from each lake, Bluff Lake has a more balanced fish population than does Oktibbeha County Lake. Neither, however, seems to support populations of game fish in which a high percentage of these are in the available or harvestable range. Both lakes contain high populations of gizzard shad. 相似文献
15.
Alan Carlin 《Journal of the American Water Resources Association》1971,7(2):221-227
The Sierra Club, which has long fought selected water resource projects that it believes would be environmentally damaging, has come to the conclusion in recent years that much more basic reforms are required in water resources development activities if the demands for environmental quality now evidenced by the American people are to be satisfied. These reforms should not be limited to those that would have a direct effect on the environmental aspects of proposed projects, but also many others long advocated by the economics profession that would have favorable indirect effects. Among the urgent reforms with indirect effects are those involving revision of the procedures used in evaluating proposed projects. These procedures should be revised so that future evaluations will much more accurately reflect the economic and environmental merits of proposed projects. Basic reforms of tax policies are also needed that will eliminate most of the private profit available to those who can persuade the government to increase the value of their land through the construction of water projects. Finally, some additional actions can be taken that will have a direct impact on lessening the adverse environmental impact of water projects beyond the provisions of the National Environmental Policy Act of 1969. 相似文献
16.
Jon R. Miller 《Journal of the American Water Resources Association》1980,16(3):471-477
ABSTRACT: Short-term fluctuations in agricultural markets necesitate adjustments in market prices for use in water resources planning. Two procudures for this price normalizing are described and evaluated. The linear treand and weighted average normalizing procedures perform reasonably well, except in cases of dramatic price oscillations. 相似文献
17.
ABSTRACT: The proper use of input-output for estimating regional benefits and costs is described for instances where project outputs go to final or intermediate demand. How that estimation is affected by the method used to value the primary project benefits and by the sector content of the input-output model compared to the primary sector affected are discussed as are points of terminological confusion between the two methods. 相似文献
18.
John A. Ballweg Charles A. Ibsen 《Journal of the American Water Resources Association》1971,7(5):935-940
ABSTRACT. Evidence from 1969 studies in Virginia and Ohio suggests that neither community leaders nor the general public are likely to define water related problems as major problem areas. An examination of the components of a social problem tends to indicate that water problems have not moved beyond a level of minimal public concern. When respondents were willing to describe existing or potential water problems, perceptions as well as possible solutions were described in abstract rather than action-oriented terms. It is suggested that efforts to eliminate water resource problems are not likely to be effective until public concern moves to motivational and behavioral levels. 相似文献
19.
Marshall Gysi 《Journal of the American Water Resources Association》1980,16(4):676-680
ABSTRACT: Most of us are aware, or feel we are aware, of the impacts of major water resources projects on our lives. “Dam-lovers” note the life-saving flood-risk reduction and recreational benefits of a proposed reservoir, while “dam-haters” bemoan the future drowning out of the wildlife habitat of its river valley, and the recreational disbenefits to stream (as opposed to lake) fishermen. Water supply projects can often be given such a revered status, assuming the “obvious” tenet that water, air, food, and shelter are basic requirements of decent living, that the economic viability of the project may not even be assessed. Water resources planners are supposed to impartially weigh the environmental and economic benefits, and especially now, the energy implications of all proposed water projects, but many times the partial views of political or public advocates may be hard to ignore. The assumptions used in the planning of four recent water projects in the Province of Alberta will be presented and some revisions suggested which materially affect their Benefit/Cost ratios. In one project that is still in the public hearing stage, the economic analysis will be revealed, indicating that the original B/C ratio of about 1.6:1 might be more realistically placed at 0.6:1. In another project just completed, the apparent lack of an economic or energy analysis that has resulted in a perpetual and unnecessary energy load on the province, will be described. 相似文献
20.
Asit K. Biswas 《Journal of the American Water Resources Association》1973,9(4):746-754
Historically, the main objective of water resources development has been economic efficiency, and the technique for its evaluation has been benefit-cost analysis. Gradually other objectives have emerged, and these in order of their emergence are regional income redistribution, environmental quality and social well-being. These multi-objectives have given rise to multifarious problems, and have made the planning process much more complex than ever before. The different objectives are not mutually exclusive, and, hence, contributions to one can only be made at the expense of others. Trade-off studies between different objectives are difficult to make. It is suggested that one way to overcome this difficulty could be to design a system to perform optimally in terms of one objective, subject to a specified level of performance of the other, which in effect becomes a constraint. The paper also discusses the pros and cons of the desirability of public participation in our decision-making processes, and the necessity of developing social sciences models to aid water planning and management. 相似文献