THE INFLUENCE OF TREES IN THE MINOR RIVERBED OVER THE WATER FLOW AND STABILITY OF THE RIVERBED. CASE STUDY
THE INFLUENCE OF TREES IN THE MINOR RIVERBED OVER THE WATER FLOW AND STABILITY OF THE RIVERBED. CASE STUDY

Summary/Abstract: Over time, spontaneous vegetation develops in the rivers, which influencethe flow of water. In general, the vegetation on the banks strengthens the riverbed and hasa positive influence on the stability of the riverbeds. The presence of vegetation increasestheroughness of the riverbed, reduces the speed of the water, increases the water level in theriver, increases the water level in the nearby groundwater layer. Sometimes this vegetationmaterializes in large trees. How do they influence the flow of water and the stability of theriverbanks?. Large tree roots contribute to increased stability. Large tree body (over 2-3"diameter) become rigid and thus become a punctual resistance to water flow. Localturbulence and high local velocities of water are created which lead to erosion of the banks.These erosions develop and dislocations occur on the banks of the minor riverbank.There is a location in the minor riverbed of the Barlad river, where the presence of largetrees has contributed to the erosion of the riverbed and the endangerment of the leveesin themajor riverbed. It is proposed a limitation of the stiffness of the tree body according to itsdiameter for the trees in the minor riverbed.

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