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A course of english for student of forestry resources management
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TABLE OF CONTENT
INTRODUCTION
Unit 1: THE ROLE OF TREES...............................................................................Page 2-5
Unit 2: THE DEVELOPMENT OF CONSERVATION.......................................Page 6-10
Unit 3: IDENTIFICATION OF TREES (I).........................................................Page 11-15
Further Reading: A GUIDE TO TREE IDENTIFICATION ..............................Page 16-17
Unit 4: IDENTIFICATION OF TREES (II)........................................................Page 18-20
Further Reading: TREE IDENTIFICATION ......................................................Page 21-23
Unit 5: TREE SIZE AND TYPE CLASSIFICATION........................................Page 24-27
Further Reading: TREES AND FORESTS .........................................................Page 28-32
Unit 6: FOREST AND FLOODING ...................................................................Page 33-37
Further Reading: WINDBREAKS.......................................................................Page 38-39
Unit 7: CREATING A NEW STAND.................................................................Page 40-45
Further Reading: TREE MAINTENANCE.........................................................Page 46-49
Unit 8: DIFFERENT TYPE OF CUTTING........................................................Page 50-56
Unit 9: FOREST MEASUREMENTS DEFINED...............................................Page 57-61
Unit 10: FOREST HARVESTING......................................................................Page 62-66
Unit 11: FOREST TREE INSECTS AND HOW TO CONTROL THEM ........Page 67-72
Further Reading: TREES DISEASES .................................................................Page 73-78
Unit 12: PREVENTION AND CONTROL OF WILDFIRES ............................Page 79-82
Further Reading: FIRE MANAGEMENT................................................................Page 83
REFERENCES .........................................................................................................Page 84
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Unit 1: THE ROLE OF TREES
A. READING & COMPREHENSION
I. Reading text
For hundreds of years people have
planted trees to serve the needs of
future generations for timber and
tree products. In Europe and Asia
forests were planted by rulers,
church leaders and farmers – for
the people. By planting trees they
particularly and symbolically
showed faith and hope for the
future.
Trees are fundamental to life and
the processes that maintain healthy
soil, and clean air and water. There
is evidence which shows that in
regions where the trees are cleared
to less than 30% of their original
surface area, other sustainable life
processes begin to collapse. Rivers
silt up, soils wash away, and air
quality declines. James Lovelock, a
renowned ecologist, claimed these
breakdowns in natural systems will
in turn affect other word bio-areas
continent or cyclones may occur
more frequently. It will be sad if
these things happen before we
change from consumers to
producers.
II. Comprehension questions: Now read the text carefully, and try to answer the following
questions:
1. What do people plant trees for?
2. What do European and Asian people want to show by planting trees?
3. What are fundamental roles of trees?
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4. What will happen to the area when the trees are cut down?
III. Vocabulary
Fill in the gaps with words in the box
boundary ; slopes ; verges ; sanctuary ; shelter ; indigenous
pressures ; surrounding ; reptiles ; uncontaminated ; backbones
1.……….. forests involved over millions of years with all the …………. of natural selection
operating, so that finally what we see is a highly refined complex which is beautifully honed to
survive in the ………….. environment.
2. If the forest is large enough it will offer ………… to indigenous mammals, birds and
………………. .
3. Forest may be established in the areas such as: creeks, gullies, farm ………….., ridges and
places with …………. greater than 15, and roadside …………………. .
4. Your garden is the natural forest that are the …………. and security for the whole landscape.
5. Like your food forest and structural forest, this assembly of trees and their organisms provides
…………… and protection, and maintains air, water and soil in ……………. states.
B. GRAMMAR COMMON COMBINATIONS WITH PREPOSITIONS
Many nouns, verbs and adjectives are generally followed by specific prepositions. However,
there are many exceptions to any rule listing certain words which must appear with certain
prepositions. This is something that one must learn from constant contact with and attention to
the elements of a new language.
Exercise 1: Complete these sentences with the correct preposition
1. It‟ very nice ................... you to let me use your car. Thank you very much.
2. Why are you always so impolite ………….. your parents? Can‟t you be nice ……...….. them?
3. It wasn‟t very polite ………….….him to leave without saying thank you.
4. I can‟t understand people who are cruel to …………. animals.
5. Why do you always get so annoyed …………….. little thing?
6. We enjoyed our vacation, but we were disappointed ………….…. the hotel.
7. I was surprised ………….….. the way he behaved. It was out of character.
8. These days everybody is aware ……………….. the danger of smoking.
9. Mr. Davis spends a lot of time gardening. His garden is very well-kept, and he‟s very proud
………..…. it.
10. Bill has been doing the same job for too long. He‟s bored ……..……… it.
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Exercise 2: Choose the correct preposition to fill in the blank.
1. A sound understanding of trees and their growth should be important ………….. somebody
who participates in managing forests. (on / for / to / with)
2. Forestry must be based …………….. a sound understanding of botanical principles. (on / for /
to / with)
3. Considering the growth of tree is important …………… the determination of the yield of
lumber and other products. (in / on / for / with)
4. Some areas tend to be crowded ……………… bushes. (in / on / by / with)
5. Biophysical life processes of broad-leaved trees are different ……………. those of needle-like
ones. (with / at / from / for)
6. The life cycle of trees, similar …………… that of most plant, begins with germination. (with /
to / as / by)
7. A tree may develop stunted roots if the soil is poor …………… nitrogen. (with / in / at / on)
8. If the tree is deficient (not enough) ……………. water, it is hard for nutrients to be carried to
different parts. (in / with / on / for)
9. The forest edge is essential ……………… the lift of the wind. (with / for / to / of)
10. In the soil, water may be valuable …………….soil organisms and plant roots. (with / for / to /
of)
11. The gross features of trees are more useful …………….. quick field identification. (with / for
/ to / of)
12. The positions of tree crown are relative ……….. the general level of the forest canopy. (with
/ for / to / of)
13. Some branches are capable …………. growing independently. (with / for / to / of)
14. Glucose is rich …………….. energy. (with / in / for/ of)
15. Some forests are free ……………. rotting diseases. (with / for / to / from)
16. Trees are vulnerable …………. various diseases. (with / for / to / of)
17. It is a good way to plant trees highly resistant …………….. diseases. (with / for / to / of)
18. Forest trees are prone …………… attacks by diseases. (with / for / to / of)
19. The fungus causing wilt diseases used to be native ………….the Orient. (with / for / to / of)
20. The rotting fungi are responsible ……….great volumes of wood worthless. (with / for / to /
of)
21. Cellulose is high …………. energy content. (with / for / in / of)
Exercise 3 :
1. The American chestnut once accounted ………….. as much as one half of the trees in many
forest stands. (with / for / to / of)
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2. Any tree consists ………. the roots, stem and leaves. (with / for / to / of)
3. The tree provides habitat ………….. the animals. (with / for / to / of)
4. The word „crown‟ refers ……………. the branches and leaves of a tree. (with / for / to / from)
5. Four sections of layers make …………. the outer part of a tree trunk. (with / for / to / of)
6. The outer bark protects the tree ………….. radical changes in temperature, diseases, insects
and dying. (with / for / to / from)
7. Nature supplies the tree ………carbon dioxide from the air, minerals and water from the soil
and light energy from the sun. (with / for / to / of)
8. Metabolism is the process of building ………. and breaking ……… substances containing
carbon. (of-of / up-of / down-up / up-down)
9. The cycle including respiration and photosynthesis results …………… several net effects.
(with / for / in / from)
10. Biomass production should depend ……..the tree species and their spacing and age. (up / on /
upon / of)
11. Chemical substances can prevent trees ……….. being attacked by fungi. (with / for / from /
of)
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Unit 2: THE DEVELOPMENT OF CONSERVATION
A. READING & COMPREHENSION
I. Reading text
In very early pioneer days,
trees were cut down with no
thought of replacing them.
However, the significance of
trees was indicated as early as
the 1620s by the Plymouth
Colony, when an ordinance
was passed prohibiting the
felling of timber on any
colony land without official
consent. A little later in
Pennsylvania, William Penn,
the governor, ordered that, for
every 5 acres of forest land
cleared, 1 acre was to be left
uncut.
After the United States was
established, laws with
penalties were passed by
several states to prevent
thoughtless waste of the
forests. In the early 1800s
Congress authorized the president to protect live oak and red cedar timber in the state of Florida
and to use the Army and Navy for enforcement. During this same period the first step in forestry
was taken by the government by providing for the growing of live oaks in the southern states for
ship timbers. A federal act also provided for preservation of nearly 250.000 acres of forest land in
Florida, Mississippi, and Louisiana. According to another act passed in that decade, any person
cutting down or destroying living red cedar, live oak, or other trees on federal land could be
punished by the government. These laws and regulations, through which the government tried to
control the forest land, helped call attention to the importance of forests and led to the
development of conservation at the state level.
In January 1867, the first state committee on forest protection was appointed in Michigan, and
Wisconsin followed in March of that year. Two years later the State Board of Agriculture of
Maine appointed a committee to develop a state policy for the preservation and production of
trees. Minnesota created a law in 1871 that granted bounties to encourage the planting of forest
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trees. The first Arbor Day, a day in late April or early May observed by the planting of trees was
celebrated the following year in Nebraska.
The federal government adopted the Timber Culture Act in the early 1870s. It provided that the
government would donate 160 acres of land to any person who planted 40 acres of that trees with
trees not more than 12 feet apart and kept the trees growing and healthy for one decade. This act,
however, was repealed after 10 years because of serious abuses; too many recipients of these
grants were not honoring their commitments by failing to follow the rules and regulations
pertaining to the grants.
In many instances, while employing fire to prepare their land for cultivation, the settlers
disregarded caution relating to neighboring land. Gross carelessness often resulted in destruction
of property well.
II/ Comprehension questions
A/ True or False?
1. Trees were cut with thought of replacing them in very early pioneer days.
2. The importance of trees was known in the 17th century.
3. Before USA was founded laws with penalties were passed by several states to prevent
thoughtless waste of the forests.
4. In the early 10th century, live oak and red cedar timber in the state of Florida were protected.
5. Red cedars were grown by the government in southern states for ship timbers in the early 19th
century.
6. In some states of America, about 250.000 acres of forest land were preserved by a federal act.
7. Any persons cutting down one acre of living red cedar, live oak or other trees on federal land
could be punished by the government.
8. In the early 19th century police were used to enforce forest laws and regulations.
9. In 1896 the state Board of Agriculture of Maine appointed a committee to develop a state
policy for the preservation and production of trees.
10. These early laws and regulations played an important role in the establishment of forestry in
USA.
B/ Answer the questions:
1. In very early pioneer days, why were trees cut with no thought of replacing them?
2. What was the content of the ordinance passed in 1620?
3. What did William Penn order?
4. In the early 1800s, what did the congress authorize the president to do?