Sixty year old people spend a year investigating the survival rate of road trees: 48.6%

time:11-03-09 forum:The most beautiful sunset red
  Reprinted from http://www.dzwww.com/shandong/jinanxinwen/201103/t20110309_6203064.htm




tree is regarded as a clothes rack.


Intern Intern reporter Chen Wei
the survey is listed as a table to record the survival of trees
68 years old in the six road green source new area, a retired soldier who has noticed one since the completion of the six road extension line. Phenomenon: it is the roadside planting trees every year, but the newly planted trees are always dead and injured for second years, and never grow up.
in 2010, all the trees on the road were even more than 10 cm in diameter. Can the newly planted trees grow up? Mr. Yan put this in mind and began a year long investigation.
he put the survey into a table, recording the living conditions of the road trees, such as the survival of last year, the recent replanting, the abandoning of the pits in the near pole, the empty pit, etc., on the six road extension. There were 457 pits in the six extension line, 222 (48.6%) last year, 199 (43.5%), 17 (3.7%) and 19 (4.16%).
"how many of these trees will survive until next year?" Looking at the survival of the trees on the table is not satisfactory.
Master Yan also found that the destruction of trees in some sections was very striking: the average survival rate was less than half the average survival rate of the six road extension line Xingji River to Taoyuan District, and there were 72 trees in the south side of the West outer ring road to the Taoyuan District, and the survival rate of 12 trees was only 16.7%.
low survival rate of trees is the main cause of
low survival rate of tree planting, which may be caused by unsuitable tree species, poor soil quality in tree pit, and untimely irrigation. But the most practical and important thing is to maintain inefficiency and destroy artificially. "
Master Yan told reporters that the streets here are basically shops, business activities are frequent, people come to the car, some people have no trees in their eyes and often destroy trees intentionally or unintentionally. Many businesses are generally devoid of love for the trees in front of the door. The pits in front of the door are both garbage bins and sewers. The newly planted trees are both clothes hangers and tie dogs. Some businesses even poured grease from the washing machine to the pit in front of the door. What is more, for the convenience of operation, the seedlings that had just been planted before the door were openly killed. "Imagine how difficult it is for a small tree to survive in such a bad environment. If there is no good environment for its growth, it will still be hard to survive in second years. Uncle Yan said in great worry.
8 morning, the reporter came to the six road extension line to see that many roadside seedlings are newly planted this year. Although the trees are very small and not very strong, the surrounding merchants have already used it: hanging a nail, hanging a rope, hanging the clothes, hanging the bulb, dumping garbage and sewage into the pit... It can be said that there are so many different kinds of flowers that people can not help watching these small seedlings.
how much did the trees grow? A sixty year old man spent a year investigating the results of tree planting on the six extension line. According to his statistics, all of these trees were replaced by Melia neem trees in 2010. Only 222 of the 457 trees survived, with a survival rate of only 48.6%.

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