City trees fulfil numerous special functions in urban spaces. In addition to generating space, it also creates a certain microclimate or forms a biotope. In contrast to the fast-paced city, a long-lasting tree acts as an oasis of calm in our everyday hectic urban lives.
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Due to the complex conflict of interests between the benefits of city trees, for example as producers of oxygen, air filters or location enhancers, and the frequently highly practical demands placed upon them, they are frequently banished into city parks. In many areas, it is therefore possible to find a high concentration of trees in city woodland or parks. In recent years, the trend has moved towards a new perspective in urban planning regarding the use of trees to line roads. City trees are increasingly profiting from the growing number of environmental issues affecting urban spaces. It has been well-known for some time that trees can efficiently deal with fine particulate reduction in inner city areas. City trees have also verifiably proven to be a value-adding factor on the housing market. Those looking for homes are specifically seeking “green” spaces in the immediate vicinity of their new residences. It is therefore certainly possible to assume that city trees will in future play a larger role in urban spaces again. And yet the successful integration of trees into cities and towns is frequently difficult. If a tree is planted in an inner city area, it has to adapt to a completely different habitat.
Cities are characterised by their extremely high proportion of sealed areas: dense development and paved or asphalted roads and squares. The consequence: cities are substantially warmer than in the open countryside; in addition, the sealed surfaces permit little water to seep into the ground. Underground lines and cables also restrict the root space for trees and shrubs. In addition to drought and heat, nutrient depletion along with severe ground compaction and therefore oxygen deficiency lead to stunted growth, or the trees become susceptible for diseases or pests.
• Too little root space overall • Severely compacted ground • Oxygen-deficient ground • Insufficient dewatering • Insufficient tree grates • Use of high levels of de-icing salt
Tree location and road construction are not usually executed in harmony with each other. To be able to fulfil road construction requirements, an enormously-high level of compaction of the base course is necessary. Accordingly, the growth conditions deteriorate for the affected trees. Through compaction, the water and air storage capacity are further restricted. The tree is subjected to extremely poor conditions for growth.
• Flexible, modular construction • The substrate is not compacted • Variable heights 300 mm – 1500 mm • Can bear up to 15.5 tonnes axle load • Inexpensive entry-level price • Easy to fill through large openings • Large amount of space for roots to grow (approx. 92%) • Can be installed offset • Practical clip system
TreeParker® combines the flexible installation of the individual modules with an extremely high load capacity (up to 15.5 t axle load). In this way, the most important factors for the planning and installation of a modern tree location are conjoined, and simplify the issue of dealing with increasingly complex plant locations in inner city areas for planners and executing companies.
The individual system components can easily be aligned during the planning phase. One system module comprises three different elements, which however can be assembled extremely quickly:
1.Frame (one base and one head section) 2. Posts (four per module) 3. Cover (to cover up the individual modules)
The lower frames are laid out on the floor of the plant pit and connected to form a sturdy unit using the clip system. The major advantage of this is that the modules can also be connected offset. In this way, slanted and curved, but also round and oval plant pits can easily be realised. Each deck has four recesses into which the round posts are inserted during the second working step. The root chamber system as a whole is extremely flexible, as the length of the posts can also be modified on-site to fit the respective situation. These can be adapted to all dimensions within a range of 300 mm to 1500 mm, for example if height differences occur within the plant pit for construction reasons. In spite of this, the modules maintain their extremely high load capacity.
The head section is plugged onto the posts and then connected with the base section. The actual plant pit for the tree is thus left clear. The substrate can then be filled through the upper openings. Then the cover is placed on the module. After that, the modules are covered with non-woven fabric and the usual layered top structure (base and levelling courses, paving or asphalt) can take place.Contakt