文章基本信息

标题：Funkcjonowanie zbiorników zaporowych na Słupi jako czynnik rzeźbotwórczy
其他标题：Reservoirs of the Słupia river as morphogenetic agents
本地全文：下载
作者：Elżbieta Florek ; Wacław Florek ; Leszek Łęczyński 等
期刊名称：Landform Analysis
印刷版ISSN：1429-799X
电子版ISSN：2081-5980
出版年度：2008
卷号：7
页码：12-22
出版社：Bogucki Wydawnictwo Naukowe
摘要：Przy wykorzystaniu map dawnych, a także badań i obserwacji terenowych autorzy dokonali oceny stopniaprzekształcenia rzeźby dna doliny Słupi w jej środkowym biegu, na odcinku, na którym w latach 20. XX w. wybudowano szeregurządzeń hydrotechnicznych, w tym dwie elektrownie wodne i towarzyszące im zbiorniki dolinne. Badania wykazały, żedno doliny Słupi w ciągu ponad 80 lat przekształciło się w zróżnicowanym stopniu, a tempo i zasięg współczesnych procesówformo- i osadotwórczych są niewielkie, z wyjątkiem górnych części zbiorników i odcinka koryta Słupi położonego poniżejelektrowni Krzynia.
其他摘要：The subject of the study is the channel and valley floor of the Słupia river along its >10 km length reach south ofSłupsk. In the early 20th century this reach of the valley was heavily altered through channelization and drainage, followed byextensive hydro-engineering works in the 1920s. The aim of this study is to recognize the magnitude of geomorphic change inthe channel and the valley floor consequent to these human-induced perturbations.In 2001–2007 monitoring of selected processes and sites was carried out and involved mapping and repeated surveying ofshorelines of reservoirs, bathymetric measurements, assessment of shoreline landforms, and repeated photography. Shorelineerosion, delta progradation and wave behaviour were among the monitored processes.Hydropower stations have been working continuously since their opening, whereas the reservoirs have never been flushed ordredged. The most important consequence is the dominant role of sedimentation in re-shaping of the Słupia valley floor,whose pattern is the following:– in the shallowest part of the reservoirs (10–30 cm) an older floodplain has been quickly and completely covered by depositsand vegetation succession proceeds,– in the middle sections, where reservoirs widen out, delta progradation takes place,– fine material is deposited in near-dam widening and in local coves, most intensively if water depth is less than 1 m, withthe contributing role of aquatic plants.The course of fluvial processes below the Krzynia power station is different. The channel is modelled by scour and lateralerosion, which develop because of local scouring. In the effect of scour, the floodplain has been extensively drained overmany kilometers, resulting in drying-up of oxbows cut off during the early 20th century straightening, desiccation of poolfloors. At the same time, meanders migrate at the rate of 0.4–0.8 m per year.
关键词：zbiorniki; elektrownie wodne; akumulacja; procesy brzegowe; delta; meandry
其他关键词：reservoirs; hydropower plants; accumulation; littoral processes; delta; meanders