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Urbanization effects on the river systems in the Bucharest City region(Romania)

Ecosystem Health and Sustainability 2016年第11期2卷 20-38页

作者： Liliana Zaharia Gabriela Ioana-Toroimac Octavian Cocoş Florin Adrian Ghiţă Emanuel Mailat Faculty of Geography University of Bucharest1 Nicolae BălcescuSector 1Bucharest010041Romania water Management System Ilfov-Bucureşti Argeş-Vedea Water BranchNational Administration“Romanian Waters”294 Splaiul IndependenţeiSector 6Bucharest060031Romania argeş-vedea water branch National Administration“Romanian Waters”6-8 Calea CâmpulungPiteştiArgeşCounty110147Romania

This article identifies and analyzes the effects of human pressures on the river systems,landscape,flow regime,and water quality in the Bucharest region,the largest urbanized area in *** analyses focused on four streams crossing the Bucharest region,namely the Dâmboviţa,Colentina,argeş,and Sabar *** approach relied especially on three types of information:(1)spatial data;(2)hydrological data sets;and(3)water quality *** made a diachronic analysis of the available maps and ran classic statistical analysis of the data sets,as well as trend *** the same time,we compared the flows in natural(reconstituted)and modified(current)*** results showed that the stream system and its associated landscapes have considerably changed due to several engineering works(reservoirs,dams,channelization works,diversion canals,water intakes,etc.).Under these circumstances,the flow regime suffered changes that differed among the ***,the multiannual discharges of the argeşand Dâmboviţa rivers did not exhibit significant changes,but only mitigated the monthly discharge *** the case of Sabar and Colentina,a significant increase of the annual and monthly discharges was identified,due to the water transferred from the neighboring *** quality worsened,especially on the lower courses of the Dâmboviţa and argeşrivers,degrading the states and health of the aquatic ecosystems in the study region.

关键词： aquatic ecosystems Bucharest region ecological state ecosystem health engineering works flow regime river system Romania urbanization water quality

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