All trees in the Memmingen urban area are occupied

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Each city tree can be identified and clearly assigned by the attached tree numbers. © V. Weyrauch

Memmingen – The work to create Memmingen’s tree register has been completed, the municipality announces in an announcement. “This not only gives us an overall overview of the population, it also makes it easier for us to take appropriate measures to preserve the trees and protect the population,” explains Lord Mayor Manfred Schilder about the comprehensive digital recording of all freestanding trees. trees on urban land.

After all, all trees must be inspected once a year, and older trees must even be inspected every six months. After extreme weather conditions, some of these are checked further. A time-consuming task for the municipality, but necessary because of the obligation to ensure traffic safety, the mayor believes. Head of the gardening department, Michael Koch, adds: “The register serves us for complete documentation and archiving of measures and master data.”

However, the cadastre has other advantages: “I am happy that we can now also assess that we are doing quite well compared to other cities in terms of the number and age of the trees,” notes Deputy Mayor Dr. Hans Martin Steiger. Signs and climbers agree that the tree register is an important addition to the Tree Protection Ordinance.

In preparing the cadastre, a total of 14,802 individual trees and a further 13,954 trees in 659 extensive tree stands were registered and checked. This corresponds to a ratio of 3.00 inhabitants (population 44,465; as of 31/12/21) per individual tree. If you include the trees in the flat forest areas, this corresponds to a ratio of 1.51 inhabitants per This means that Memmingen is at the upper end compared to other Bavarian municipalities in terms of the number of inhabitants per municipal tree.

In addition, the age of the trees is recorded in the newly created database. As a result, figures for carbon dioxide (CO2) Binding of the plants can be calculated. If you take the figures for the municipal individual tree population as a basis, they sequester around 37,000 tonnes of CO2. This corresponds to around 2.5 tonnes per tree. This value can also be classified as “high” compared to other Bavarian municipalities, where average values ​​are consistently well below the two-ton mark. This favorable balance is connected to the relatively high proportion of old trees, which not only have an important storage function for carbon dioxide, but also promote biodiversity.

The evaluations of the tree register have shown that around 24 percent of the population are old trees. Specimens with an estimated age of about 80 years or more were classified as old trees. Exactly 158 different tree species are represented in the approximately 15,000 trees. The largest group is the plane maple (Acer pseudoplatanus) with 1,716 pieces.

And the recording of the trees brought additional interesting details: Namely, where the oldest, the most extensive and the tallest trees are.

The oldest trees are:

  • A small-leaved lime (Tilia cordata) with a trunk circumference of 622 centimeters (cm) at Dickenreiser Weg, believed to be 428 years old. A small-leaved lime (Tilia platyphyllos) with a circumference of 572 cm on Oberer Eschaldenweg, which is about 394 years old. As well as an English oak (Quercus robur) on the Way of St James east of Dickenreishausen, with a circumference of 475 cm and an estimated 374 years. And a common beech (Fagus sylvatica) south of the Neue Welt city park with a trunk circumference of 525 cm and an estimated age of 308 years.
  • On the Way of St James there is also an ash tree (Fraxinus excelsior), which is not only one of the oldest trees, but also has the largest trunk circumference, namely 741 cm. This extent suggests an age of 393 years. The poplar (Poppulus x canescens) at the archery range on Haienbachstraße is almost as powerful, with a circumference of 669 cm, indicating an age of 302 years.
  • The tallest trees in the city are two poplars (Populus x canescens), each 38 meters high, on the Memminger Ach between Amendingen and Steinheim.

(MK)

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