文章基本信息

标题：Morphometric changes of the River Bodrog from the late 18th century to 2006
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作者：NIKOLETTA MECSER ; GáBOR DEMETER ; GERGELY SZABó 等
期刊名称：Acta Geographica Debrecina. Landscape and Environment Series
印刷版ISSN：1789-4921
电子版ISSN：1789-7556
出版年度：2009
卷号：3
期号：1
出版社：University of Debrecen
摘要：The river regulations of the 19th century have affected each of our rivers toa different degree. Inthe case of the RiverBodrogit was stronger than the average. In our paper a section of the river between Bodroghalász and Szegiwas examined,the extent and intensity of river channel changeswas intended to be determined. The appliedseries ofmaps andaerial photos wasgeoreferred and the river channel was vectorized. The morphometric parameters of the channel were measured and the changes were evaluated using the createddatabase. From methodological aspect we concluded that the 9 variables can be grouped into 3 factorstherefore most of the indexes can be substituted. We measured the changes of length and lateral shift of the channel using GIS methods. Three development periodswere identified based on our results. In the first period the development of the river was characterized by natural processes. Then, the development of the river alteredowing to the antropogenic impacts. In this transient phase the average shifting of the channel was 7.43 m/y. In the third term this value reduces to 0.2 m/y as the river is getting to reach the equilibrium stage
关键词：river regulation; GIS; channel morphometry; channel development