The large roofs of the Goerzwerk offer plenty of room for Silvio Schobinger's idea of a sustainable commercial complex. On the flat roof, however, there are extreme climatic conditions with danger of frost, strong winds, high temperature fluctuations and intense solar radiation. Berlin-Brandenburg is also now the driest region in Germany. Plants from the seashore and salt marshes can cope with extremes such as torrential heavy rain or drought.
Andreas Frädrich has now created a piece of marine landscape in a 1000 m2 test bed as extensive green roofs with crops. An advantage of this kind of greening is the low maintenance effort. Another aspect is the study of salt-tolerant plants.
Under extreme conditions, culinary extraordinary salt meadow herbs such as Sea Fennel, Oyster Plant, Agretti, Salt Melon or Salicorne thrive in this model project. In addition, flowering plants such as the grasshoppers, Horn Poppy, Salt Alant or Strandlevkoje are bee-friendly. A variety of our crops, especially vegetables such as cabbage or rocket originate from coastal regions. Some ancestors of modern cultivars can now be discovered here on the roof garden. What our ancestors found so appealing to these salt-tolerant plants are characteristics that make the wild herbs from the narrow habitat between coast and sea even interesting for star cuisine: The leaves of many beach herbs are often fleshy, tender, juicy and with their own subtle salt note. For tasting all products come as Smørrebrød. It is currently the largest Smørrebrød selection of the world.
Conventional types of vegetables such as peppers or tomatoes are not as sustainable or economically competitive as the outdoor rooftop garden garden. Many urban farming projects are too technical or economically unsustainable and not at all natural. Table Project also wants to address Berlin's keen appetite for experimentation. Another advantage of the rooftops high above Berlin-Lichterfelde also: Up here there are no boars, moles, voles or rabbits that could cause damage. The nutrient-poor roof garden is fertilized with seaweed from beach cleaning in the Baltic Sea. The waste product from the sea, for which there is no other use, is upgraded to high-quality sea compost. An interesting side effect: many plastic parts are sorted out by the Beach-Clean and disposed of properly.
The "floating sea garden over the skies of Berlin" is completed by a salt-tolerant potato variety from the Netherlands ("Miss Mignonne"), which has already been tested worldwide for several years, for example on salted oil fields in Pakistan. Every day, 2,000 hectares of land worldwide are salinized daily, fatal, especially in areas with artificial irrigation - all of which is compounded by the effects of climate change. The potato cultivation on the Goerzwerkdach takes place according to the principle of the Chinese Potato Box, an ancient cultivation method. "More biodiversity in crop cultivation is urgently needed, says Frädrich. The project is supplemented with a brackish water aquaponics facility, which is populated with Chinese crab hand crabs - an invasive species that is a special delicacy. The light salinity wastewater is used to irrigate the sea roof garden.
“Un mundo propio que desafía el cambio climático. Esperanza!”
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