| Erosion,sediment transportation and accumulation in rivers |
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| 作者单位： | Head of the Hydrology Department Faculty of Geography，Moscow State University，Moscow，Russia，Prof，Leading researcher，Lab.of Soil Erosion and Fluvial Processes，Faculty of Geography，Moscow State University，Moscow，Russia，Prof，Head of the Lab.of Soil Erosion and Fluvial Processes，Faculty of Geography，Moscow State University，Moscow，Russia，Prof |
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| 基金项目： | Acknowledgements The present research was carried out under financial support of the Russian Federation President grant for supporting the leading scientific schools （Project NS-4884.2006.5） and grant of the Russian Fund for Basic Research RFBR （Project No. 06-05-64259 and 07-05-00421）. |
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| 摘 要： | The present paper analyses the interrelation between erosion, sediment transportation and accumulation proposed by N. I. Makkaveyev （1908-1983） and its further development in modem studies of river channel processes in Russia. Spatio-temporal linkages between erosion and accumulation are defined considering channel processes at different scales - river longitudinal profile, channel morphological patterns, alluvial bedforms （bars, dunes） and individual sediment particles. Relations between river geomorphic activity, flow transportation capacity and sediment budgets are established （sediment input and output; channel bed erosion and sediment entrainment into flow - termination of sediment transport and its deposition）. Channel planforms, floodplain segments separated by the latter and alluvial channel bedforms are shown to be geomorphic expressions of sediment transport process at different spatial and temporal scales. This paper is dedicated to the 100th anniversary of N. I. Makkaveyev, Professor of the Moscow State University, author of the book ＂River channel and erosion in its basin＂ （1955）. That book is regarded in Russia as the pioneering work which initiated the complex hydrological and geographical studies of channel processes and laid a basis for the theory of unified fluvial erosion-accumulation process.
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| 关 键 词： | 河流 通道 沉积物 堆积侵蚀作用 |
| 收稿时间： | 1 April 2007 |
Erosion, sediment transportation and accumulation in rivers |
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| Authors: | N I ALEKSEEVSKIY K M BERKOVICH and R S CHALOV Prof Head of the Hydrology |
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| Institution: | [1]Prof.,Head of the Hydrology Department, Faculty of Geography, Moscow State University, Moscow, Russia [2]Prof.,Leading researcher, Lab. of Soil Erosion and Fluvial Processes, Faculty of Geography, Moscow State University, Moscow, Russia [3]Prof.,Head of the Lab. of Soil Erosion and Fluvial Processes, Faculty of Geography, Moscow State University,Moscow, Russia |
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| Abstract: | The present paper analyses the interrelation between erosion,sediment transportation and accumulation proposed by N.I.Makkaveyev (1908-1983) and its further development in modem studies of river channel processes in Russia.Spatio-temporal linkages between erosion and accumulation are defined considering channel processes at different scales - river longitudinal profile,channel morphological patterns,alluvial bedforms (bars,dunes) and individual sediment particles.Relations between river geomorphic activity,flow transportation capacity and sediment budgets are established (sediment input and output;channel bed erosion and sediment entrainment into flow -termination of sediment transport and its deposition).Channel planforms,floodplain segments separated by the latter and alluvial channel bedforms are shown to be geomorphic expressions of sediment transport process at different spatial and temporal scales.This paper is dedicated to the 100th anniversary of N.I.Makkaveyev,Professor of the Moscow State University,author of the book "River channel and erosion in its basin" (1955).That book is regarded in Russia as the pioneering work which initiated the complex hydrological and geographical studies of channel processes and laid a basis for the theory of unified fluvial erosion-accumulation process. |
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| Keywords: | Channel processes Sediment Erosion and accumulation Longitudinal profile River channel patterns Channel bed morphology |
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