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11 answers

Locust

2007-07-22 23:53:27 · answer #1 · answered by IDKthat 4 · 0 1

Fast-growing, good Co2 absorbance are useful, but far more useful is the ability to survive in urban conditions (high air pollution levels, ground compaction, variable water amounts, and high levels of water pollution). Uros gave some traditionally good city trees - Plane or Sycamore Trees (Platanus) and Linden or Basswood Trees (Tilia) are favorite European varieties. Others that are often used include Oaks (Quercus), Elms (Ulmus) and Maples (Acer), but all these have some characteristic or other that makes them more problematic in cities. Ginkgos are often used, but (a) they're not much good as shade trees, and (b) you definitely do not want to get any female Ginkgos, as the fruit has a potent and nauseating smell. Lots of others are occasionally used with variable success, depending on the particular conditions of the local area where the tree is planted; various kinds of fruit tree (crab-apple, flowering pear) are popular in areas where sweet-smelling or pretty flowers are desired, for instance.

2007-07-23 07:08:41 · answer #2 · answered by John R 7 · 2 0

Paulownia is the best there is,fast growing and it regrows after been cut very big leaves ,produces animal forage ,as wel as beautiful wood for furniture quote this tree is indestructible… it shot out of the ground in spring and grew 15 feet that year, then reached 25 feet the next year. It was like watching Jack and the Beanstalk. It’s an entertaining tree year-round. In the winter its branches are covered with furry, pea sized buds, just waiting to burst into huge flowers. At the first sign of spring, the tree explodes with purple blooms. Cars slow down to look at it. The fragrance is incredible… it’s like a cross between gardenia and jasmine. When summer comes, the tree forms a dense canopy that can drastically cut your power bills. The leaves are huge, measuring about a foot wide. They’re almost tropical looking. When they drop in the fall, it’s an easy clean up... not like my Oaks that scatter tens of thousands of tiny leaves. Plus, bigger leaves mean fewer branches, so you get more sunlight and natural heat coming through in the winter when you need it most. Best of all, this is a tree you don’t have to baby. It grows almost everywhere, from Mexico to Canada, preferring zones 5-11. It has no significant insect or disease problems… tolerates drought…and grows in almost any kind of soil, even toxic ones. It's a hardwood tree that lives to an old age. You can also feel good that you’re planting one of the most environmentally beneficial trees in the world. Those large leaves act as giant air filters, pulling pollution out of the air at a remarkable rate… turning it into wood, then releasing high amounts of beneficial oxygen. This year’s Paulownia Trees are in short supply. Recent publicity and recommendations from TV shows like Oprah have fueled demand. Just beware that not all Paulownia Trees are the same. Some nurseries use wild seed that doesn't grow as quickly. Others use growth inhibitors to keep their trees smaller for shipping. This can stay in the tree for several months, giving you disappointing results. Fast Growing Trees Nursery uses proven stock that's faster growing, hardier and better formed. You get a 3 year old root crown that's ready for explosive growth.

2016-05-20 23:49:59 · answer #3 · answered by linda 3 · 0 0

50 years one tree recycles more than $37,000 worth of water, provides $31,000 worth of erosion control, $62,000 worth of air pollution control, and produces $37,000 worth of oxygen.
Two mature trees provide enough oxygen for a family of four.

Trees help reduce the "greenhouse effect" by absorbing CO2. One acre of trees removes 2.6 tons of CO2 per year.
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Trees obviously grow at different rates, to different sizes, so they must absorb different amounts of CO2 over different time periods. Some trees are probably better in the short term, others in the longer term
Tree planting obviously involves much more than just CO2 absorption. It’s important for the natural environment, wildlife etc.
Neem is a fast growing tree in India that can reach a height of 15-20 m, rarely to 35-40 m. It is evergreen but under severe drought it may shed most or nearly all of its leaves. The branches are wide spread.
The drought-tolerant Chitalpa tree (Chitalpa x tashkentensis) will grow 2 feet or more every year to a mature height of 25 to 30 feet
Another fast grower is the majestic Chinese elm (Ulmus parvifolia). It can reach 30 feet tall within 5 years and ultimately grow to a height of 40 to 60 feet.
The Desert Willow (Chilopsis Linearis) grows fast and produces pink orchid-like flowers all summer long.
The Nichol’s Willow-leaf Peppermint tree (Eucalyptus nicholii) can grow 2 feet or more per year
The pyramid-shaped Honey Locust (Gleditsia triacanthos) grows 3 or 4 feet a year to a mature height of 35 to 75 feet tall
Fig trees (Ficus carica) grow rapidly to 20 to 30 feet, they have big leaves which cast dark shade
Mesquite Tree (Prosopis) instantly brings up images of cowboys and the Old West. These trees grow very fast and definitely prefer little water after they are established.

2007-07-25 16:07:26 · answer #4 · answered by kanya 5 · 0 0

Plane trees. They grow really fast too.

http://www.cityofsydney.nsw.gov.au/Environment/TreeManagement/PlaneTrees.asp

2007-07-23 13:31:14 · answer #5 · answered by Icy Gazpacho 6 · 1 0

Generally it is Eucalyptus tree or poplar tree that grows fast and are planted in cities.

2007-07-23 00:28:46 · answer #6 · answered by vk_manga 2 · 0 0

The London Plane is famous in Britain for being planted in town centres to absorb atmospheric pollution.
http://en.wikipedia.org/wiki/London_Plane
Its bark mops up chemicals in the air and this bark is regularly shed.

2007-07-23 00:00:58 · answer #7 · answered by Anonymous · 4 0

since I'm not very familiar with the terms of tree names in English,I'll write them down in Latin : 1.Acer sp. (dasycarpa,pseudoplatanus,platanoides,negundo,etc.)
2.Platanus sp. (orientalis,occidentalis,x acerifolia)
3.Tillia sp (pavifolia,grandifolia,cordata)
4.sometimes it can be poplar trees,but since they are very susceptive to the attack of Dothichiza populea,it is desirable to plant resistant clones to this fungi,like clone I-214.

2007-07-23 00:55:24 · answer #8 · answered by Anonymous · 0 0

Neem (Azadirachta indica).

2007-07-25 18:53:32 · answer #9 · answered by Sachin 2 · 0 0

OAK TREE IS THE FINEST OF ALL!

2007-07-23 00:09:39 · answer #10 · answered by §ïm¶Lə µë 2 · 0 0

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