engleski

Function of the drainage-retaining Botonega channel in the integrated management of the Botonega accumulation

The retaining Botonega channel represents one of the most significant water-managing facilities of the Istrian peninsula. Its purpose is related solely to protection against high waters and erosion, as well as to the irrigation of downstream agricultural lands in the central and lower part of the Mirna River. In the last few years considerable changes in the geomorphology of the Botonega channel, primarily in its lower part, have been noticed. This article addresses basic geometric and kinematical characteristics of the Botonega drainage channel and describes the throughput capacity of the channel in winter and summer time, as well as the significant appearance of its deformability during the last ten years. The measures for improvement and rehabilitation of the Botonega earth channel and the criteria for the channel throughput capacity and for the increase and decrease of its erosive activity are given in the Conclusion.

the Botonega channel ; erosion ; deformability ; throughput ; coefficient of roughness

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