Capita to see in city streets from October to March, teams of fierce pruning trees that remove the secondary branches and the main branches to reduce painful stumps. The reason for this mess is the fear of public administrators from falling branches causing accidents. So to be safe, order a kind of pre-emptive war of the classes: cut them all so that one does not fall. In reality, accidents caused by falling branches or whole plants are very few, infinitely less than those due to other causes (think of the many thousands of deaths and hundreds of thousands of injuries each year in road accidents) and could be greatly reduced if you were closer monitoring of trees by removing branches promptly secchi e marcescenti e se si avesse più attenzione per le radici delle piante. Molto spesso infatti lo schianto di alberi lungo le strade è dovuto al poco spazio che si lascia alle radici. Capita poi che per collocare tubature si scavi vicino agli alberi tagliando gli apparati radicali. Le pesanti potature e capitozzature non producono solo un danno estetico: indeboliscono anche le piante favorendo le infezioni e gli attacchi parassitari e causando una crescita ritardata e stentata delle foglie. Generalmente gli alberi dei parchi cittadini non subiscono un tale trattamento e sono lasciati crescere come natura vuole, ma capita che numerosi proprietari di giardini, per emulazione di quanto vedono fare agli alberi dei viali, facciano anch’essi excessively prune their trees, believing that if he does the City, is a necessary thing. municipal regulations of urban green when there are, are not unique . Regulation of the Municipality of Trieste contains no limitation on pruning. The regulation contains provisions Torino premise that " a tree planted and cultivated properly and free of damage and deterioration does not require, as a rule, pruning" . The Rules of Florence requires maintenance pruning trees avenues of trees and parks Rimonda pruning only if necessary, "for example as a result of natural disasters, to reduce required of the root or to parasites. "
to take stock on how to deal with urban trees was held in Trieste on November 27th 2009, the conference "The tree in the city, very simple cost or resource?" Promoted by the associations Trafioriepiante Triestebella and with the participation of three experts as speakers: Prof. Francesco Ferrini president of the Italian Association of arboriculture, Dr. Andrea Maro director of public green in Udine and Valvason George, of trees. At the end of the meeting was approved and signed by the speakers the public present a manifesto for trees in the city.
MANIFESTO FOR THE TREES IN CITY
WHEREAS, trees in the city, like every living being
- have a right to grow up healthy and live happily ever after natural
- produce an aesthetic delight and add value to the beauty and identity of urban landscapes where they are vital, but not when they are treated against their nature;
- improve the urban microclimate especially as they are allowed to grow according to nature;
- when they are to be regarded as a major historical elements in the same manner as the buildings of architectural and historical value and therefore as can be preserved.
made the following votes:
PLANTATION OF TREES AND TREATMENT
1. trees are being planted at a distance between their boundaries and walls and adequate for their development, so as not to suffer as a result of heavy pruning to reduce the foliage;
2. be avoided to consider the trees as mere ornaments, also planted along narrow sidewalks where they can not develop properly;
3. Topping be avoided in order to grow the trees of the avenues in the form of candles, because that way it disfigures the natural form of producing false;
4. be avoided radical pruning with the elimination of secondary branches and stumps in the reduction of the principal, as this barbaric treatment involves the risk of infection and decay, delay of months, the production of leaves during the growing season, with the consequences of weakening the trees and give long looks painful and aesthetically ugly;
5. pruning is done only when and insofar as needed to remove diseased or dead branches and reduce (the minimum) over the crowns in competition with each other or too close to walls, windows and power lines;
6. when the rows are too close, unless it is of historic trees, thinning is preferred the number rather than intervene with radical pruning.
TREES AND GARDENS HISTORIC
7. large trees, especially in the historic gardens are preserved until the end of their natural life cycle and you will not get cut just to make room for traffic, just as it would to demolish historic buildings only to widen streets or roads;
8. elsewhere planting of new trees is not considered compensation for the removal of historic trees and even less so if the new trees will be planted on narrow sidewalks free space needed for their development;
CULTURE OF TREES IN CITY
the government set an example, incorporated in the rules of appropriate rules on urban green pruning and proper planting distance and do the work of disclosure at the garden owners to eliminate the prejudice that leads them, even for emulation what do they see in the city streets, to unnecessary and excessive pruning.
SIGNED BY THE CONFERENCE SPEAKERS
Mario Barbiero chairman of the horticultural FVG "Among Flowers and Plants";
arch. Baroque Roberto, president of Triestebella;
prof. Francesco Ferrini professor of urban Arboriculture, installation and management of green areas, University of Florence, President of the Italian Society of Arboriculture;
Dr. Andrea Maro, an agronomist specializing in ornamental arboriculture, director of the Public Service of Green Udine;
Valvason George, of trees, a specialist in the care and maintenance of trees.
Trieste, November 27, 2009
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