Allocation ; Management ; New Zealand ; Water ; Water economics ; Water management ; Water resources ; Water use
Implementing the resource management act compels those responsible for managing the allocation and end-use of water resources to address several conceptual issues. They include the expansion of the range of relevant management values, regionalism
Environmental security and shared water resources in post-Soviet Central Asia
Administrative structure ; Conflict ; Environment ; Former USSR ; Irrigation ; Natural resources ; Resource management ; Security ; Soviet Central Asia ; Water ; Water quality ; Water resources
The paper examines the distribution of water and the location of physical and political boundaries in Central Asia, identifies indicators of the susceptibility of its various regions to resource and water-related conflict, and then applies those
indicators to discover the potential for future water-based resource conflict. Water quality and regional social unrest as a consequence of migration from regions of environmental deterioration are examined.
Agriculture ; Bulgaria ; Drinking water ; Drought ; Industry ; Sofia ; Water ; Water resources ; Water supply ; Water use ; Weather type ; Years 1990-99
persistence remains a mystery. Similarly, from the perspective of water supply and use, it is clear that the crisis would have reached disaster proportions if had not economic downturns in industry and agriculture taken place since 1989.
Allocative efficiency of rural Nevada water systems: a hedonic shadow cost function
Countryside ; Economic efficiency ; Hedonistic model ; Nevada ; Price fixing ; United States of America ; Utility fonction ; Water ; Water economics ; Water use
The efficiency of the water utility firms in rural Nevada and their input optimization are examined. The methodology incorporates a hedonic specification of the cost function in estimating the effect of the regulatory environment and the quality
of water services on the optimum utilization of inputs. Allocative distortions are introduced through shadow prices.
A partial explanation of the dependency of hydraulic conductivity on positive pore water pressure in peat soils
Hydrology ; Natural gas ; Peat ; Porosity ; Soil ; Soil properties ; Soil water
Part of the relationship between positive pore water pressures and hydraulic conductivity in peat soils may be explained by accumulations of methane bubbles. The AA. show how compression and expansion of gas bubbles with changes in pore water
pressure could cause changes in hydraulic conductivity and thus help to explain some observations of dependency of hydraulic conductivity in peats on pore water pressure. Consideration is also given to the effect on hydraulic conductivities of methane gas
going into solution with increase in pore water pressure.
Fault ; Geological structure ; Geothermics ; Hydrogeology ; Mineral water ; Slovak Republic ; Tectonics ; Thermal spring ; Water quality
From 1955 to 1985 an intensive hydrogeological survey has been carried out in Slovakia, in order to ascertain the conditions of forming mineral and geothermal waters in various geological structures and to find new sources of the afore-mentioned
waters. The survey helped to clarify the laws of their distribution and evaluate the quantitative and qualitative properties of water developing on the basis of geologic-tectonic conditions and physical-geographic terms of the given territory
Water balance and water resources of the Aral Sea basin and its Man-induced changes
Aral Region ; Degradation ; Former USSR ; Human impact ; Sea level ; Soviet Central Asia ; Stream flow ; Water ; Water balance ; Water resources
This paper presents natural-climatological characteristics of water resources forming conditions of the Aral sea basin. Analises flow variability correlation of Amy Darya and Syr Darya from the point of their influence on the sea level fluctuation
. Shows up the tendences of structural changes and efficiency of water resources usage of the region, presents their present-day spacial-geographical peculiarities. On the basis of temporal analysis of water balance structure of the Aral Sea, a conclusion
Traditional water management and state intervention: the case of Santo Antão, Cape Verde
Cape Verde ; Government intervention ; Irrigation ; Water ; Water management
A Sahelian-type climate and rugged relief in this westernmost island of the Cape Verde archipelago requires a meticulous water management to support its 45,000 people. The irrigation systems are intricate and well-organized, but a new irrigation
Aquifer ; Development ; Groundwater ; Land use ; Puerto Rico ; Water pollution ; Water quality ; Watershed
Water wells from four Puerto Rican municipios were tested for 15 water-quality parameters. Noxious chemicals contaminated this water, presenting risks to human health. - (DWG)
Issues in managing water ressources in semiarid regions
Arid area ; Industrialization ; Irrigation ; Semi-arid area ; Urbanization ; Water ; Water management ; Water resources ; World
Water ressources in many arid and semiarid regions are being overexploited and some important groundwater aquifers are nearing economic exhaustion. Many regions are also experiencing conflict over the reallocation of limited supplies, particularly
Mahafir: a water harvesting system in the Eastern Jordan (Badia) desert
Arid area ; Desert ; Groundwater ; Jordan ; Methodology ; Precipitation ; Rill wash ; Storage site ; Water ; Water resources
This paper, in response to the growing demand for water, examines the operation of these often ancient, now largely abandoned, water harvesting systems (mahafir) and to assess wether they can offer an alternative water supply hence reducing pressure
on the overtaxed groundwater resource. The analysis is based upon fieldwork carried out in the Badia region during 1993. Mahafir are crescent and rectangular shaped excavations dug into the playa surface. Their source of water is primarily direct rainfall onto
Irrigation ; Methodology ; Water ; Water management ; Water resources ; World
Irrigation plays a major role in improving agricultural production to cater to the needs of increasing world population. It is to be noted that in countries with advanced technologies, the water use per hectare is about half that of the less
China ; Drinking water ; Hydraulic works ; Polluted water ; Pollution ; Sanitation improvement ; Shanghai ; Water economics ; Water management ; Water needs ; Water pollution ; Water purification ; Water quality ; Water supply
Avoiding disasters: the role of systems analysis and an integrated approach in water resources development
Drainage ; Ecosystem ; Environmental degradation ; Irrigation ; Salinisation ; System analysis ; Water ; Water resources ; World
Sustainable development of the earth's limited water and land resources is of paramount importance, but now there is irrefutable evidence that such developments have led to major resource degradation. This includes problems of soil-waterlogging
, land and water salinisation and damage to ecosystems. This paper describes some of these developments and argues that an integrated approach firmly based upon system analysis is necessary to avoid mistakes of the past and to promote informed use