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Vizitator_Autogreen.ro. |
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Mesaj
#1
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Am observat de curand pe DN6 plantarea unor puieti la marginea drumului national.
Ce parere aveti de copacii platati pe marginea drumului? sunt un mod de filtrare a gazelor de esapament, protectie a asfaltului si consolidare a terenului sau pretul plati in vieti omenesti este mult prea mare pentru acest lucru. |
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Vizitator_0A4390. |
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Mesaj
#2
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Daca intrii intr-un copac cu 70km/h te simti mai bine?! Obstacolele nu au ce cauta pe marginea soselelor, ca nu suntem in reclama la Sprite "ti-e dor de senzatii tari".
Daca iesi in decor cu masina din diverse motive,( poate adormi la volan!), si ai avut norocul sa intri intr-un copac aleluia scrie pe tine, daca te-ai duce pe aratura sansele de a te accidenta sunt minime. |
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Vizitator_gigel de luxembourg. |
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Mesaj
#3
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Daca intrii intr-un copac cu 70km/h te simti mai bine?! Obstacolele nu au ce cauta pe marginea soselelor, ca nu suntem in reclama la Sprite "ti-e dor de senzatii tari". Daca iesi in decor cu masina din diverse motive,( poate adormi la volan!), si ai avut norocul sa intri intr-un copac aleluia scrie pe tine, daca te-ai duce pe aratura sansele de a te accidenta sunt minime. daca adormi la volan inseamna ca nu esti sofer, esti pericol public. daca mergi cu viteza excesiva iarasi nu esti sofer, esti pericol public. riscul de a muri din impactul cu un copact aflat pe marginea drumului este practic 0 in cazul soferilor adevarati. A single mature tree can absorb carbon dioxide at a rate of 48 lbs./year and release enough oxygen back into the atmosphere to support 2 human beings If every American family planted just one tree, the amount of CO2 in the atmosphere would be reduced by one billion lbs annually. This is almost 5% of the amount that human activity pumps into the atmosphere each year There is up to a 60% reduction in street level particulates with trees One sugar maple (12" DBH) along a roadway removes in one growing season 60mg cadmium, 140 mg chromium, 820 mg nickel, and 5200 mg lead from the environment The asphalt paving on streets contain stone aggregate in an oil binder. Without tree shade, the oil heats up and volatizes, leaving the aggregate unprotected. Vehicles then loosen the aggregate and much like sandpaper, the loose aggregate grinds down the pavement. Streets should be overlaid or slurry sealed every 7-10 years over a 30-40 year period, after which reconstruction is required. A slurry seal costs approximately $0.27/sq.ft. or $50,000/linear mile. Because the oil does not dry out as fast on a shaded street as it does on a street with no shade trees, this street maintenance can be deferred. The slurry seal can be deferred from every 10 years to every 20-25 years for older streets with extensive tree canopy cover Trees can also enhance traffic calming measures, such as narrower streets, extended curbs, roundabouts, etc. Tall trees give the perception of making a street feel narrower, slowing people down. Closely spaced trees give the perception of speed (they go by very quickly) slowing people down. A treeless street enhances the perception of a street being wide and free of hazard, thereby increasing speeds. Increased speed leads to more accidents Street trees also forewarn drivers of upcoming curves. If the driver sees tree trunks curving ahead before seeing the road curve, they will slow down and be more cautious when approaching curves One half of a tree's dry weight is carbon (see Nowak, 1994b for various citations). Thus carbon storage is directly related to size (i.e., bigger trees have more carbon stored). Annual carbon sequestration (the amount of carbon removed from the atmosphere each year) is related to tree size and growth rates (large trees with fast growth rates will remove more carbon annually than small trees with slow growth rates). |
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Mesaj
#4
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Membru veteran ![]() ![]() ![]() Grup: Membri Postari: 146 Inscris: 13-July 08 Utilizatorul numarul: 1 773 ![]() |
daca adormi la volan inseamna ca nu esti sofer, esti pericol public. daca mergi cu viteza excesiva iarasi nu esti sofer, esti pericol public. riscul de a muri din impactul cu un copact aflat pe marginea drumului este practic 0 in cazul soferilor adevarati. In cazul asta .. ma duc la politie sa-mi predau carnetu'. Nu pot suporta ideea ca nu sunt sofer "adevarat" atata timp cat am avut "onoarea" de a face cunostinta cu copacul. Ce mai conteaza "micul" amanunt ca am fost aruncat in copac de un inconstient. Cum el e mare ... poate ramane in continuare sofer "adevarat". La fel ar trebui sa faca si cei care au cea mai mica banuiala ca ar putea avea vreo problema cu masina (de exemplu o explozie de cauciuc) ... undeva in viitor ... si risca sa intre intr-un copac. Predati carnetele dragilor ... ca to'ar'su ecologist de ocazie vrea sa va planteze copaci pe marginea drumului. Poate in curand va veni cu ideea sa puna copaci si pe linia continua ... uite dom'le ce ecologist sunt ![]() LE. Dupa ce am dat adaugare am vazut ca si "m" e de aceeasi parere cu mine. Inseamana ca nu m-am ticnit de tot ... inca ... |
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Lo-Fi Version | acum este: 11th December 2019 - 07:14 AM |