Excursion to a “Waal trail”

Details

  • Full Title

    Exploring traditional irrigation systems in the Ötztal

  • Suggested by

    Carlotta Sauerwein-Schlosser

  • The respective workshop calls for contributions regarding ...

    • Socio-Ecological System Studies
    • Innovation Studies
    • Area Studies
    • Landscape Research
  • Keywords

    traditional irrigation systems, excursion, water use, socio-ecological systems

  • Type

    Excursions

Description

The Ötztal, at the far end of which the venue of our summer school is located, is a 65-kilometre-long Alpine valley running north-south. The advances of glaciers and several rock avalanches have shaped today’s landscape. The advancing ice was repeatedly dammed up by debris, which caused a number of catastrophic floods. Today, the glacier melt is still the most important source for drinking water supplies and local agriculture: livestock farming in the highlands, fruit growing in the lowlands. Nontheless, agricultural production has always been challenged by low precipitation. Due to its geographical location, the Ötztal belongs to one of the driest territories in the European Alps (average annual precipitation in the municipality of Umhausen: 692 mm). The people who settled and cultivated the valley therefore had to adapt to these conditions. This situation gave rise to what is today referred to as traditional irrigation systems, the so-called “Wasser Waale”. “Waale” are man-made irrigation channels along mountain slopes that transport water from its source to the fields and meadows where it is needed. In the past, the construction elements were accompanied by sophisticated social rules determining which farmer received how much water at what time. Many of these irrigation systems are meanwhile destroyed. But they are regaining prominence and are being reconstructed, not only for irrigation, but also for tourist purposes.

Format/Concept

As part of this half-day excursion, we will hike along a restored “Waal trail”. The objective is to investigate the traditional irrigation system at its place of origin and to learn about the skills farmers generations ago developed and applied to adapt to environmental conditions and to protect nature.
For this purpose, we will take the bus to the municipality of Sölden, which is the starting point of the hike. The trail “Waalweg Mooserstegle” is designated as moderate with a length of 3.5 km (ca. 2,2 mi) and approx. 250 m (820 ft) of elevation gain.
Hiking boots and weatherproof clothing are required for participation! Estimated duration of the hike: 2.5 to 3 hours with short breaks to analyse certain sections of the irrigation channels.

Solving water use conflicts
Boundary Layer Flows and Turbulent Exchange over Heterogeneous and Complex Surfaces
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