Solution scenario for erosion bottlenecks - bottlenecks
Description
The map with solution scenarios for erosion bottlenecks contains the data from the municipal erosion control plans in Flanders, approved by the Department of Area Development, Environmental Planning and Projects of the Flemish Government. The data from these plans are proposals of erosion control measures deemed useful. The inclusion of measures in these plans does not mean that the measures will actually be implemented. As not all erosion-prone municipalities have an approved municipal erosion control plan yet, the map cannot be considered complete. It is estimated that around 120 municipalities in the Flemish Region are affected by water and processing erosion in at least part of their territory due to the combination of the sloping topography, the high clay content in the soil and the agricultural practice with intensive arable farming. In Flanders, these municipalities are concentrated in a band of an average of 30 kilometres in the south of the Region. By 2020, 117 municipalities will have an approved erosion control plan in place. The municipal erosion control plan consists of, on the one hand, the study of historical and environmental factors (the analysis of the preconditions), and, on the other hand, the identification of erosion bottlenecks together with a concept of solution consisting of a combination of source-oriented and symptom-oriented erosion control measures for each of the bottlenecks (the bottleneck analysis). A bottleneck is defined as the area that drains to a known erosion problem point. A bottleneck can cross the municipal boundary, as the boundary of a drainage area is determined by the topography and not by the municipal boundary. In principle, bottlenecks cannot overlap, unless there is an erroneous assessment of the run-off area. This is sometimes the case with cross-border bottleneck areas, because the erosion control plans have been drawn up by municipality and independently of each other, possibly by different engineering offices. These ‘errors’ were noted in the evaluation of the erosion control plans, but not corrected in this map. The map of solution scenarios for erosion bottlenecks contains the uncorrected data from the approved erosion control plans. Observations made by the competent administration can be consulted in separate documents for each planning area. The plans submitted for approval were drawn up by various engineering offices. The variety of naming and symbology of erosion control measures was reduced for this map to ten classes of measures, divided into point, line and plane measures. The 'plan areas' data layer contains the demarcation of the areas for which the municipalities have drawn up their municipal erosion control plans.
Resources
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https://metadata.vlaanderen.be/srv/dut/catalog.search#/metadata/62b8da9e-59d3-4469-8e32-d8c2b948bfc4 |
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https://metadata.vlaanderen.be/srv/dut/catalog.search#/metadata/62b8da9e-59d3-4469-8e32-d8c2b948bfc4 |
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https://metadata.vlaanderen.be/srv/dut/catalog.search#/metadata/62b8da9e-59d3-4469-8e32-d8c2b948bfc4 |
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25 |
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https://metadata.vlaanderen.be/srv/dut/catalog.search#/metadata/62b8da9e-59d3-4469-8e32-d8c2b948bfc4 |
Tags
- vlaanderen
- bodemerosie
- ondergrond
- dov
- departement-omgeving
- databank-ondergrond-vlaanderen