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The role of flood plains in the sustainable water supply of Pécs

The role of flood plains in the sustainable water supply of Pécs
Danube ; Floodplain ; Hungary ; Lower valley ; Town ; Water ; Water management ; Water supply
The main aim of the paper is to present the unsustainable conditions of water supply of Pécs and to detect the main reasons behind it. First the special role of the flood plain along the Lower Danube Valley in the water supply of the town
is considered, then obstacles to achieving sustainable water management are analysed. - (JS)

Water economy - land use and hydrological coherences in the lower Danube region

Water economy - land use and hydrological coherences in the lower Danube region
Danube ; Historical geography ; Hungary ; Hydrology ; Land use ; Man-environment relations ; Roman era ; Settlement ; Water economics
The study deals with the topic in a historitical context examining the part of the paper deals with the questions of water regulation and human impact is demonstrated by analysing the relationship between environmental conditions and settlement

Evidence for the intra-Glenwood (Mackinaw) low-water phase of glacial Lake Chicago

Evidence for the intra-Glenwood (Mackinaw) low-water phase of glacial Lake Chicago
The 14C age control on the stratigraphy at the Riverside site in Michigan confirms that an intra-Glenwood low-water phase occurred in the Lake Michigan basin during the Mackinaw Interstade. The existence of low-level lakes at this time also

Satellite-derived low-level atmospheric water vapour content from synergy of AVHRR with HIRS in Special issue : Applications of AVHRR data.

Satellite-derived low-level atmospheric water vapour content from synergy of AVHRR with HIRS in Special issue : Applications of AVHRR data.

The pending water crisis

The pending water crisis
Marketing channel ; Water ; Water economics ; Water management ; Water resources ; Water supply ; World
Recent investigations conclude that there are many areas where the demands are growing beyond water availability and problems arise from intensive withdrawals, mismanagement, or simply low availability. Water demand is no longer an evident necessity
but is one of the claims to be subjected to decision making. Managing the demand of water in the framework of the objectives of a national socio-economic development plan is a challenge in the water planning process. This planning requires strong mechanisms

Eco-water conveyances applied to control desertification at the lower reaches of the Tarim River

Eco-water conveyances applied to control desertification at the lower reaches of the Tarim River
Arid area ; China ; Desertification ; Ecosystem ; Spatial variation ; Stream ; Vegetation degradation ; Water needs ; Water resources ; Water use ; Xinjiang
The lower reaches of the Tarim River are one of the areas suffering from most severe sandy desertification in Xinjiang, Northwest China. Irrational utilization of water and land resources results in eco-environmental deterioration in the Tarim River
. In May 2000, the local government carried out the water conveyances project in the Tarim River. The influence of water conveyance on desertification reversion is analyzed and discussed according to the monitoring data in the past 3 years. It is suggested
that the way and range of water conveyances should be adjusted in the future.

Dynamical variations in groundwater chemistry influenced by intermittent water delivery at the lower reaches of the Tarim River

Dynamical variations in groundwater chemistry influenced by intermittent water delivery at the lower reaches of the Tarim River
Arid area ; China ; Environmental degradation ; Groundwater ; Hydrochemistry ; Salinity ; Water quality ; Water resources ; Watershed ; Xinjiang
The water of Bosten Lake was released to lower reaches of the Tarim River for 5 times from 2000 to 2002. The changes of total dissolved solid (TDS) and the major ions were analyzed during this period. It was found out that TDS and the concentrations
. In addition, the salt in groundwater was only diluted but not removed by the water. It was suggested that ecological measuresshould be sought to really promote the quality of the groundwater at the lower reaches of the Tarim River.

Etiages. Application à l'Afrique occidentale et centrale du nord-ouest

Different approaches can be used in studying fluvial low waters. The use of simple numerical processes facilitates a primary approach to this phenomenon| a detailed statistical analysis of low waters shows their length and geographical extent
. A cartographical representation of observed discharge minima gives some indications about influences of geophysical factors in their genesis. The study of low waters in both medium and low latitudes has progressed in the last decades owing to completed research
in Africa achieved by the hydrological service of O.R.S.T.O.M. on low waters in equatorial regions (1958) and in tropical humid or Sahelian areas (1968-1974).

Deposition and accumulation of biogenic magnetite in low oxygen facies

Deposition and accumulation of biogenic magnetite in low oxygen facies
Magnetotactic bacteria apparently only secrete magnetite under conditions of low oxygen and have high turnover rates in nitrate and ammonia-rich environments. These geochemical conditions commonly exist where productive aerobic waters are in contact
with anaerobic waters. This has relevance for environmental monitoring and prediction of the onset of hypoxia in bottom waters. If the magnetic signal is preserved over time, the technique also may prove useful in geochemical prospecting and in paleooceanographic

The influence of water regulation on vegetation in the lower Heihe River

The influence of water regulation on vegetation in the lower Heihe River
China ; Ecosystem ; Hydraulic works ; North-Western China ; Oasis ; Remote sensing ; Riparian vegetation ; Stream ; Underground water ; Water management ; Water regime ; Water resources
Since 2000, great changes in spatial-temporal distribution of water resources took place in the lower Heihe River. In order to objectively evaluate the influence of water regulation on the eco-environment, the changes of groundwater table, typical
vegetation, landscape types as well as East Juyan Lake have been analyzed in the lower Heihe River, by means of field surveys and remote sensing. These results indicate that there are obvious effects of water regulation on the eco-environment, which has been
improved toward sustainability in the lower Heihe River.
[b2] College of Water Sciences, Normal Univ., Beijing, Chine

Genetical structure and regime of water resources in Lovec district

Genetical structure and regime of water resources in Lovec district
A quantitative estimation of water resources of every 200-meter height belts has been carried out. The structure elements has been estimated by means of analysis of hydrographes. A phase of primary high water and low water level has been established

The emerging water crisis in Bulgaria

The emerging water crisis in Bulgaria
Agriculture ; Bulgaria ; Drinking water ; Drought ; Industry ; Sofia ; Water ; Water resources ; Water supply ; Water use ; Weather type ; Years 1990-99
Climatic records for the last 15 years indicate that Bulgaria is experiencing a period of exceptionally low precipitation. The record-setting drought of 1993 can be explained from a synoptic climatic perspective, but the causes of drought condition
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.

Topography and hillslope water relationships in a catchment of low relief

Topography and hillslope water relationships in a catchment of low relief

Possible effects of ground water lowering on some peat soils in Sjaelland

Possible effects of ground water lowering on some peat soils in Sjaelland

The relationship between surface and sub-surface waters: water quality aspects in areas of low precipitation

The relationship between surface and sub-surface waters: water quality aspects in areas of low precipitation

Evaluation of water quality pollution indices for heavy metal contimation monitoring. A study case from Akpabuyo-Odukpani area, Lower Cross River Basin (southeastern Nigeria)

Evaluation of water quality pollution indices for heavy metal contimation monitoring. A study case from Akpabuyo-Odukpani area, Lower Cross River Basin (southeastern Nigeria)
Geochemistry ; Heavy metals ; Index ; Nigeria ; Pollution ; Surface water ; Water quality

Facilitating regional sustainable development through integrated multi-objective utilization, management of water resources in the Lancang-Mekong river basin

Facilitating regional sustainable development through integrated multi-objective utilization, management of water resources in the Lancang-Mekong river basin
China ; Dam ; Flood ; Inundation ; Irrigation ; Qinghai ; Sustainable development ; Water ; Water management ; Water resources ; Watershed ; Yunnan
Agreement on Cooperation for Sustainable Development of Mekong Basin signed by the four riparian countries along the lower Mekong River on April 5, 1995 provides a new opportunity for sustainable development of the Basin. If the multi-purpose
utilization of the water resources is the target for carrying out integrated planning and management, and the efforts are made, then all problems such as power demand, irrigation, flood, salt water intrusion as well as acid water erosion tosoil could be solved
without constructing large cascaded stations and dams on the lower Mekong Mainstream.

Spatial differentiation of chemical denudation in the Bystrzanka flysch catchment (West Carpathians)

Investigations showed that in the region composed of Magura strata the lower concentration of salts are characteristic as compared with waters of the Inoceramus region of Krosno strata. This is reflected too, in the share of particular macroelements
the principal components are sulphates and then carbonates. In the both areas average salts concentration in soil waters is lower than in bedrock waters. The quantity of material removed in solution is closely dependant on high water stages. The highest bulk
. In the water of soils in the region composed of Magura strata less amounts of carbonates, sulphates and calcium were observed while there was more potassium than in the water of soils of the Inoceramus region. In the waters of bedrock of Magura strata
of salts is carried away during spring-summer high water stages. (d'après l'A.).

Water use and millet production in the Sahel

Water use and millet production in the Sahel
Africa ; Arid area ; Biomass ; Drought ; Evapotranspiration ; Land use ; Model ; Sahel ; Water balance ; Water use
Water-avaibility is an important and often critical factor for plant-production in the Sahel. The most important crop of this region is millet, which has a low water requirement and a high resistance to drought. In this article attention is drawn
to the importance of properly understanding the water balance in the Sahel, and the relationship between biomass production and transpiration is discussed. A method for estimating transpiration from a heterogeneous vegetation cover is tested.

The role of water resources in the evolution of the Israeli-Lebanese border

The role of water resources in the evolution of the Israeli-Lebanese border
Conflict ; Frontier ; Israel ; Lebanon ; Trans-border area ; Water ; Water management ; Water resources ; Zionism
The Zionist Organization aspired to include the entire Galilee region up to the lower reaches of the Litani River within Palestine. The river itself was the desired northern border of the country. The Zionists supported their position by employing
instrumental arguments that were largely related to the availability of water resources. Residents of the upper Galilee, on the other hand, demanded that they be included with Lebanon, using their trade and cultural links with Beirut. Access to the water

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