Estimation of dissolved solids in the rivers of China and factors that influence their quantity.
Data from thirty rivers are analysed. The total quantity of dissolved solids reaching the sea annually is estimated to be 345 10 tons. The amount of main ions transported, and the quantity of dissolved solids for the mainrivers are examined
The main aim of this paper is to determine and describe the ecotype categories of the catchment area of the River White Nyikó (W Romania). This river is the most important right hand tributary of the River Great Küküllö in Central Transylvania
. Beside the three main categories author distinguishes four subcategories in each. -(ZK)
A complex evaluation of the development of water quality in the Berounka River basin during the 1990s. The main influencing factors of pollution are the surface water. The main affluents - Střela, Litavka, Třemošná, Rakovník and Kaznějov creek
River adjustment to changes in sediment load : the effects of tin mining on the Ringarooma River, Tasmania, 1875-1984
Années 1875-1984 ; Australie ; Capacité de charge ; Cours d'eau ; Exploitation minière ; Fluviatile ; Géographie physique ; Hydrodynamique ; Lit fluvial ; Modèle ; Ringarooma river ; Tasmania ; Transport sédimentaire
This paper is concerned with the impact of hydraulic tin mining on the Ringarooma River. It has two main aims : 1) to establish the transport history of the introduced debris over more than a century| and 2) to analyse the response of the river
20th century stage trends along the Mississippi River
This study compared 4 measures of river hydrology at the beginning (1910-1930) and at the end of the 20th century (1980-2000). River-stage data were statistically analyzed from 15 equidistant gauges along the main stem of the Mississippi River
. The findings revealed : significant changes in components of river hydrology between both time periods; varying patterns of change between the different river segments. Discussion of these results.
The Position of new immigrants in the Fall River textile industry
1890-1905 ; Canadiens Français ; Coton ; Etats-Unis ; Européens ; Fall River ; Géographie historique ; Histoire de la géographie ; Immigration ; Industrie textile ; Massachussets ; Migration ; Portugais
Immigration de main-d'oeuvre (Canadiens français, Européens, en particulier Portugais) à la fin du XIX s et au début du XX s, dans le centre d'industrie cotonnière de Fall River, Massachussets.
River response to channel regulation: case study of the Raba River, Carpathians, Poland
This paper is a case study of the changes in the Raba, a mountain gravel-bed river, which have followed its channel regulation during the present century, especially in the last 40 years. The paper has two main aims: 1) to show the complex nature
of the mechanisms involved in approaching a new equilibrium; and 2) to discuss disadvantages of the applied regulation scheme being revealed on the catchment and regional scales, and to utilize them as a geomorphological lesson for river engineering.
Geomorphological evolution of the Navua River, Fiji
Channel geometry ; Drainage network ; Fiji ; Fluvial capture ; Geomorphology ; Longitudinal section ; River bed ; River diversion ; Stream ; Tectonics ; Vertical movement
The Navua River on the main island of Fidji displays anomalous drainage features and associated fluvial forms. The aim of this paper is to present a case history where tectonic damming and diversion provide a more appropriate explanation than river
Long-term impacts of the 1997 floods in the Morava River Basin
In 1997, disastrous floods have been carried out of the Morava River and other Moravian rivers. The long-term impacts of the flood event on the landscape and population have been examined. The main causes of the flood damage are connected
with the formulation of the settlement pattern during industrialization and urbanization. The main geographical methods of flood protection include the relocation of outside inundated areas, technical controle and the adaptation to flood risks too. - (MS)
La meilleure procédure de classification sur le bassin de la RiverMain est le rapport bande 3/bande 2. Le problème de la similitude de réponse entre la végétation des (bogland) et les sols nus a été contourné en éditant des box-classification
Formation of river terraces and evolution of drainage system in the middle reaches of the Yellow River
On the basis of field data and by paleosol-dating method, it is concluded that the Yellow River of this segment and its main tributaries were formed 1670-1450 ka ago, afterwhich six terraces and two valley flats have developed. The evolution
Holocene valley aggradation driven by river mouth progradation : examples from Australia
The links between river mouth progradation and Holocene valley aggradation are examined with a model for the Macdonald and Tuross Rivers in south-eastern Australia. Both rivers have abandoned their main Holocene floodplains over the last 2000 years
Terasovy systém stredni a dolni Ohre The terrace system of the middle and lower Ohre River
The main results of the geomorphological investigations of river terraces of the middle and lower cours of the Ohre River (N.W. Bohemia). The shifting of the Ohre River in Pleistocene from the Mostecka panev (Basin) eastward into the Dolnooharska
Czech Republic ; Elbe ; Hydrology ; River basin ; Water pollution ; Water quality ; Years 1990-99
. Decrease in the pollution is however limited to the Elbe-River and its main tributaries. It is the area of small water-courses that has to be now in the centre of attention. - (MS)
In the course of 90s, the Czech part of Elbe River Basin underwent a significal change in the quality of surface water. The scope and speed of such water quality changes is unprecedented in the Czech as well as in the Central European perspective
Fluvial process and morphology of the Brahmaputra River in Assam, India
Tropical rivers
An attempt has been made in this paper to discuss the fluvial processes and morphological aspects of the river Brahmaputra within Assam, especially from its upper reach. The channel of the Brahmaputra River has been migrating because of channel
widening and avulsion. The braiding index of the Brahmaputra has been increasing between 1928 and 1996. Shear failure of upper bank and liquefaction of clayey-silt materials are two main causes of bank erosion.
Amazonas River ; Exploration ; Peru ; Prague ; Scientific expedition ; Springs ; Stream ; University
The expedition Hatun Mayu (Big River in Quecha) of the Faculty of Science of Charles University, Prague, measured the lenght of the main source of Apurimac River considered as the longest source segment of Amazon. In addition the expedition measured
Temporal variations in bedload transport rates and sediment storage in gravel-bed rivers
This review has three main aims : 1) specification of a spatial and temporal classification of bedload variability; 2) identification of the range of mechanisms which may produce bedload variability at a given scale; 3) assessment
of the implications of variability for ideas of equilibrium in river channels.