hardly conceivable that there are no impacts. The only regions where nature appears
to be rather unthreatened by water scarcity are the two that have water reservoirs. In
the Vilaine area, however, this has resulted in the reverse effect, namely that of
flooding of wetlands in the dry season. This relates to a second issue, that of the
degree of modification of the water system. In all regions the water system has been
modified in the past, either for purposes of flood protection or agricultural efficiency
or both. All of these interventions had side effects on other services of the water
system that were often not recognized when the interventions took place.
Fig. 12.1 Nature areas and nature development priority areas (dotted and yellow) in the Twente
pilot area of Vechtstromen (light grey are cities and towns). Source Website Province of
Overijssel, page on National Ecological Network
234
H. Bressers and U. Stein
to be rather unthreatened by water scarcity are the two that have water reservoirs. In
the Vilaine area, however, this has resulted in the reverse effect, namely that of
flooding of wetlands in the dry season. This relates to a second issue, that of the
degree of modification of the water system. In all regions the water system has been
modified in the past, either for purposes of flood protection or agricultural efficiency
or both. All of these interventions had side effects on other services of the water
system that were often not recognized when the interventions took place.
Fig. 12.1 Nature areas and nature development priority areas (dotted and yellow) in the Twente
pilot area of Vechtstromen (light grey are cities and towns). Source Website Province of
Overijssel, page on National Ecological Network
234
H. Bressers and U. Stein