Patterns of flow evolution in the central area of the Romanian Plain, Case study: the Calnistea Catchment (Romania)
This paper seeks to emphasize the flow variability in the Calnistea catchment by analyzing the local physiographic factors. The research has shown that the amount of precipitation that falls to the ground is low, the rocks in the region are soft, but highly permeable, gradients are gentle in most...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
University of Guilan
2011-10-01
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| Series: | Caspian Journal of Environmental Sciences |
| Subjects: | |
| Online Access: | https://cjes.guilan.ac.ir/article_1052.html |
| Summary: | This paper seeks to emphasize the flow variability in the Calnistea catchment by analyzing the local
physiographic factors. The research has shown that the amount of precipitation that falls to the ground is
low, the rocks in the region are soft, but highly permeable, gradients are gentle in most of the territory and
vegetal cover is sparse and therefore cannot hold important amounts of water. Under the circumstances,
the flow is controlled especially by precipitation, gradient and rock permeability, which largely explains
the rather low values of the drainage density, as well as the frequency with which the rivers dry up
completely. The moisture deficit of the summer season is compensated to a certain extent by the existence
of a chain of ponds along the main streams. The situation could further be improved if local authorities
will find the necessary financial means in order to excavate artificial channels to bring water from the
neighboring catchments. Although the flow values are generally low, under exceptional synoptic
conditions the heavy rainfalls can lead to the formation of flash floods that can damage settlements,
transportation routes and crops. Consequently, it is necessary to build protection levees in the lowlands
and to regulate the stream flow. |
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| ISSN: | 1735-3033 1735-3866 |