|
訪問全文......
1.
What is your research topic ? How important is it ?
I am doing a research about Biomass
Estimation using Remote Sensing Technique. My research topic
is “Modeling Carbon Storage Capacity of Hong Kong's Vegetation”.
You know that Biomass
is the only key element which can sink/store/sequester carbon
dioxide from the atmosphere and this biomass is stored in
plant. Actually during the photosynthesis, plants take carbon
dioxide from the atmosphere and store it as biomass through
some biochemical procedure. As a result 50% of the dry weight
of plant is carbon dioxide.
As Hong Kong is a
highly populated place and fuel consumption is very high,
so carbon dioxide emission is very high and this increasing
trend of carbon dioxide emission causes many environmental
problems. So it is important for the Hong Kong people and
Hong Kong government (to consider) whether the environment
particularly the forest is capable to store this increasing
trend of carbon dioxide from the atmosphere which are produced
by various activities.
2.
Why you need to take samples for your research ?
Although I am trying
to estimate biomass using remote sensing technique but for
the development of Allometric Relationship tree sample is
essential.
3.
Apart from coming to our farm, how many places did you go
to get tree samples ? Which place impressed you most ? Why?
Actually
in this research I have already measured DBH (Diameter of Brest
Height) and Height of 12000 trees in 63 plots all over the Hong
Kong. But for the allometric equation I need to harvest around
40 trees in different species and I already got 9 tress. My
field plots are located inside the country park and all country
parks are really very nice but the village side impressed me
very much. Actually I was completely unaware that such a city
based Hong Kong has like this ideal village where nature is
still completely natural but I am sorry to say that the illegal
cutting of tree made me sad too.
4.
How will you use the samples ?
It is long
process to use this sample. I have to put all samples (Stem,
branches, twigs, leaves) into the oven at 900 C temperature
and need to check the weight after 24, 48, 96, 120 in order
to get a constant weight. After getting this constant weight
from this sample I can calculate the total dry weight of a
tree. Later I will try to developed a relationship between
DBH and dry weight of the tree. If I can develop a successful
relation then I can calculate biomass of other tree without
cutting of it.
5.
How do you know where you could take samples?
Actually
I have contact with AFCD and they are well known about my
research. I can’t cut tree as per my necessity as you know
that Hong Kong government have strict policy against tree
cutting. AFCD is trying to find some tree which they need
to cut some reasons and they normally inform me when they
find some tree for cutting.
6.
Incense Tree (Aquilaria sinensis) is one of the targets
for illegal immigrants, how much do you know about it
? What do you think about it ?
Actually
I did not know too much about this practice before visiting
this place. I just heard that some illegal immigrants are smuggling
Pine tree but after visiting that place I found
that it is not only Pine tree but also Incense Tree. I feel
very sad to think that how they are cutting this tree in afew
minutes just for some money and they are not thinking that how
long it takes to grow this tree and they are not thinking what
will happen if they continue this practice. I do believe that
this activity is extremely harmful for this tree specie and
government should take appropriate measure to protect this endangenous
specie otherwise it will be eliminated by this practice very
soon.
|
你的位置
從砍牙香樹說起......
