Science > Physics > Planting fast growing trees along highways, will it cause the ground to sink?
| Topic: |
Science > Physics |
| User: |
"Acceed See" |
| Date: |
06 Apr 2005 05:31:41 AM |
| Object: |
Planting fast growing trees along highways, will it cause the ground to sink? |
In my country, some people are comtenplating planting a fast
growing tree for the paper mills. It was claimed that these trees
grow to 20cm diameter in 5 years and make good paper & pulp.
I am wondering what if the tree trunks decompose and leave
vacancies underground, will it cause high ways to sink as a result?
Thanks.
.
|
|
| User: "N:dlzc D:aol T:com \dlzc\ N: dlzc1 D:cox" |
|
| Title: Re: Planting fast growing trees along highways, will it cause the ground to sink? |
06 Apr 2005 10:39:05 PM |
|
|
Dear Acceed See:
"Acceed See" <invalicd@hotmail.com> wrote in message
news:42549c04$1@news.starhub.net.sg...
In my country, some people are comtenplating
planting a fast growing tree for the paper mills.
It was claimed that these trees grow to 20cm
diameter in 5 years and make good paper &
pulp.
I am wondering what if the tree trunks
decompose and leave vacancies underground,
will it cause high ways to sink as a result?
My experience is that the tree *roots* (which are not harvested
for paper production, as the *trunk* is), cause the pavement and
curbing to *lift* as the tree grows. Afterwards, it almost never
falls to the level it started out at.
Consider that the tree takes very little out of the ground, for
all the moisture and CO2 it processes into sugar and cellulose.
Both constituents typically come from the air (well here in the
desert anyway).
David A. Smith
.
|
|
|
|
|
Related Articles |
|
|
