SlideShare a Scribd company logo
LECTURE – 1
Introduction about Forest
UNIT I: Forest and Forestry
Dr. V.S. Ramachandran
Centre for Environmental Studies
AVVP, ETTIMADAI
Mobile: +91 95855 40134 (call & Whatsapp enabled)
Mail: s_ramachandran@cb.amrita.edu
What is a forest?
Simple: A larger area dominated by trees
FAO: A forest is a land area of more than 0.5 ha,
with a tree canopy cover of more than 10%,
which is not primarily under
agricultural or other specific non-forest land
use.
Trees should be able to reach a minimum
height of 5 m at maturity in situ.
What is a forest?
What is a forest?
Chakravarthy, A. 2016. Lost in definition. Down to Earth, 25 (6): 16-18.
Definition of forestry
5
Forestry
The art, science and practice of creating,
conserving and managing trees, forests, and
utilization of their resources
Forestry is an applied science and in favourable
localities, this science is applied to get maximum
return and so it is called intensive forestry
Definition of forestry
6
Forestry
Intensive forestry:
Defined as the practice of forestry with the
object of obtaining the maximum output in
volume and quality of products per unit area
through the application of the best techniques of
silviculture and management
Definition of forestry
7
Forestry
Silviculture: The art, science, and practice of
establishing, tending, and reproducing forest
stands of desired characteristics.
Definition of forestry
8
Forestry
When forestry is practiced to achieve more than
one purpose, it is called multiple-use forestry
Multiple-use forestry:
Defined as the practice of forestry for the
simultaneous use of a forest area for two or
more purposes, often with conflicting interests
such as wood production, wildlife conservation,
recreation, aesthetics, or clean air
Branches of forestry
9
Silviculture
Agroforestry
Dendrology – wood science
Forest Botany & Ecology
Wildlife Biology
Forest Utilisation: Wood and Non-wood Forest
Products
Forest Genetics & Tree breeding
Forest Management: Economics, Statistics,
Social, Remote Sensing & GIS
Forest Protection: Entomology & Pathology
Basic terms related to forestry
10
Riparian Forest: Forested areas along a body of
water such as river, stream, pond, lake,
marshland, estuary, canal or reservoir.
Species composition: All species across
genuses that collectively make up the diversity
of trees existing in a forest.
Basic terms related to forestry
11
Canopy: The uppermost layer in a forest,
formed collectively by tree crowns.
Crown: The top part of the tree from which
branches grow above them
OR
Branches and foliage at top of an individual tree
Basic terms related to forestry
12
Crown closure: The point in forest development
when the lateral branches from adjacent trees
touch, significantly reducing growing space and
the amount of sunlight that reaches the forest
floor.
Basic terms related to forestry
13
Closed canopy forest or closed forest: Forest in
which the crowns or canopies of individual trees
overlap to form a virtually continuous layer so
that light can barely penetrate to reach the
forest floor.
Open canopy forests or open forest: forest in
which the individual tree crowns do not overlap
to form a continuous canopy layer but are more
widely spaced, leaving open sunlit areas within
the forest.
Basic terms related to forestry
14
Forest Type: Groups of tree species growing in
the same stand because their environmental
requirements are similar.
Stand: An easily defined area of the forest that
is relatively uniform in species composition, age
structure and condition and can be managed as
a single unit.
Basic terms related to forestry
15
Forester: Professional with experience in a
broad range of forest-related topics including
forest and wildlife ecology, economics, legal
issues, and the growing and harvesting of forest
products.
Basic terms related to forestry
16
Stand structure: The distribution, both vertical
and horizontal, of all living and dead vegetative
components in the forest, including trees, crown
layers, shrubs, snags (standing, dead or dying
trees), downed debris, etc.
Basic terms related to forestry
17
Climax species: Also called late-successional,
are plant species that will remain essentially
unchanged in terms of species composition for
as long as a site remains undisturbed. They are
the most shade-tolerant species of tree to
establish in the process of forest succession.
Pioneers: Shade-intolerant species that are the
first plants to colonise a barren land or a freshly
disturbed or abandoned site.
Basic terms related to forestry
18
Alien species: Non-native organisms that
become established in a new environment.
Invasive species: Any kind of living organism —
an amphibian, plant, insect, fish, fungus,
bacteria — that is not native to an ecosystem &
which causes harm. It has a tendency to
spread, which is believed to cause damage to
the environment.
Basic terms related to forestry
19
Pulpwood: Wood used in the manufacture of
paper, fiberboard, or other wood fiber products.
Non-timber Forest Products: All forest products
except timber, including resins, oils, leaves,
bark, plants other than trees, fungi, and animal
or animal products.
Basic terms related to forestry
20
Forest degradation: Changes within the forest
whether natural or human-induced which
negatively affect the structure or function of the
stand or site, and thereby lower the capacity to
supply products and/or services resulting to a
degraded forest.
Basic terms related to forestry
21
Forest fragmentation: The breaking up of large
forest areas into smaller units either by natural
processes or through conversion to other land
uses. Natural habitats become separated into
isolated fragments or “islands.”
Basic terms related to forestry
22
Stocking: A relative term indicating the amount
of growing space being occupied by trees and
the amount of growing space that is available or
unoccupied.
Overstocked: A stand that is overcrowded,
beyond 100 percent stocking, thus reducing
tree growth and vigour.
Basic terms related to forestry
23
Fully stocked: A stand where trees effectively
occupy most of the growing space, yet space
remains for further crown expansion and growth
of developing crop trees. For example, a stand
fully stocked at 70 % can grow suitably until
reaching 100 % stocking.
Basic terms related to forestry
24
Forest Management Plan: Written guidelines for
current and future management practices
recommended to meet an owner’s objectives.
Logging: it is the process of cutting trees,
processing them, and moving them to a location
for transport.
Basic terms related to forestry
25
Coupe: specific area of land that is scheduled
to be harvested within a specified period of
time, may be in a single operation. Also referred
to as felling coupe or annual coupe.
Rotation: The number of years required to
establish and grow trees to a specified size,
product, or level of maturity.
Basic terms related to forestry
26
Growing stock: Volume of all living trees in a
given area of forest or plantation that have
more than a certain diameter at breast height. It
is usually measured in solid cubic metres (m3).
Basic terms related to forestry
27
Cull: A tree or log of marketable size but do not
meet the lowest quality standards because of
crookedness, rot, injuries, or damage from
disease or insects and thus is useless for all but
firewood or pulpwood.
Basic terms related to forestry
28
Clear-cut harvest: A harvest and regeneration
practice that removes all trees within a given
area. Used most commonly in forests that
require full sunlight to regenerate or areas
where young forests are the preferred habitat.
Improvement cut: An intermediate silvicultural
treatment made to improve the form, quality,
heath, or wildlife potential of the remaining
stand.
Basic terms related to forestry
29
Regeneration cut: Any silvicultural practice with
the intent to reestablish a new stand of
seedlings.
Salvage cut: The harvesting of dead or
damaged trees or of trees in danger of being
killed by insects, disease, flooding, or other
factors.
Basic terms related to forestry
30
Sanitation cut: A harvest done as a
precautionary mechanism to remove potentially
highly susceptible trees from oncoming insects
or disease before trees become infected by the
pest organism.
Lec.01_Unit I_Introduction about forest.ppt

More Related Content

What's hot

Tree crop interaction under agroforestry
Tree crop interaction under agroforestryTree crop interaction under agroforestry
Tree crop interaction under agroforestry
bhargaviMadival5
 
Silvicultural system
Silvicultural systemSilvicultural system
Silvicultural system
Javed Iqbal Khan Khattak
 
Forest Policy.pptx
Forest Policy.pptxForest Policy.pptx
Forest Policy.pptx
Dr Shailendra Bhalawe
 
Unit 1.pdf
Unit 1.pdfUnit 1.pdf
Unit 1.pdf
Prabin Pandit
 
Agroforestry system in agriculture
Agroforestry system in agricultureAgroforestry system in agriculture
Agroforestry system in agriculture
Parshv Patel
 
Silviculture iof m.sc
Silviculture iof m.scSilviculture iof m.sc
Silviculture iof m.sc
Deepak Gautam Tutunga
 
The role of Agroforestry in conserving soil and soil moisture in Nepalese con...
The role of Agroforestry in conserving soil and soil moisture in Nepalese con...The role of Agroforestry in conserving soil and soil moisture in Nepalese con...
The role of Agroforestry in conserving soil and soil moisture in Nepalese con...
Amit Chaudhary
 
Agroforestry note elie.pptx
Agroforestry note elie.pptxAgroforestry note elie.pptx
Agroforestry note elie.pptx
NIYIBIZIElie
 
Silvicultural characteristics of three tree species on temperate region bish...
Silvicultural characteristics of three tree species on temperate region  bish...Silvicultural characteristics of three tree species on temperate region  bish...
Silvicultural characteristics of three tree species on temperate region bish...sahl_2fast
 
Shelterbelts and windbreaks
Shelterbelts and windbreaksShelterbelts and windbreaks
Shelterbelts and windbreaks
bhargaviMadival5
 
Introduction to forestry
Introduction to forestry Introduction to forestry
Introduction to forestry
AnilGawali8
 
ROLE OF AGROFORESTRY IN MITIGATION OF CLIMATE CHANGE
ROLE OF AGROFORESTRY IN MITIGATION OF CLIMATE CHANGEROLE OF AGROFORESTRY IN MITIGATION OF CLIMATE CHANGE
ROLE OF AGROFORESTRY IN MITIGATION OF CLIMATE CHANGE
GANDLA MANTHESH
 
Forest classification
Forest classificationForest classification
Forest classification
Vivek Srivastava
 
Forest classification
Forest classificationForest classification
Forest classification
Dr Shailendra Bhalawe
 
Growing and Tending Your Forest: An introduction to silviculture
Growing and Tending Your Forest: An introduction to silvicultureGrowing and Tending Your Forest: An introduction to silviculture
Growing and Tending Your Forest: An introduction to silviculture
Eli Sagor
 
Role of agroforestry in augmenting crop productivity
Role of agroforestry in augmenting crop productivityRole of agroforestry in augmenting crop productivity
Role of agroforestry in augmenting crop productivity
Amit Chaudhary
 
Role of silviculture in forest management
Role of silviculture in forest managementRole of silviculture in forest management
Role of silviculture in forest management
Syed Zahid Hasan
 
Normal forest – growing stock and increment
Normal forest – growing stock and incrementNormal forest – growing stock and increment
Normal forest – growing stock and increment
iqbalforestry
 
Forest mensuration slide 1
Forest mensuration slide 1Forest mensuration slide 1
Forest mensuration slide 1
Vivek Srivastava
 

What's hot (20)

Tree crop interaction under agroforestry
Tree crop interaction under agroforestryTree crop interaction under agroforestry
Tree crop interaction under agroforestry
 
Silvicultural system
Silvicultural systemSilvicultural system
Silvicultural system
 
Forest Policy.pptx
Forest Policy.pptxForest Policy.pptx
Forest Policy.pptx
 
Unit 1.pdf
Unit 1.pdfUnit 1.pdf
Unit 1.pdf
 
Silvicultural systems
Silvicultural systemsSilvicultural systems
Silvicultural systems
 
Agroforestry system in agriculture
Agroforestry system in agricultureAgroforestry system in agriculture
Agroforestry system in agriculture
 
Silviculture iof m.sc
Silviculture iof m.scSilviculture iof m.sc
Silviculture iof m.sc
 
The role of Agroforestry in conserving soil and soil moisture in Nepalese con...
The role of Agroforestry in conserving soil and soil moisture in Nepalese con...The role of Agroforestry in conserving soil and soil moisture in Nepalese con...
The role of Agroforestry in conserving soil and soil moisture in Nepalese con...
 
Agroforestry note elie.pptx
Agroforestry note elie.pptxAgroforestry note elie.pptx
Agroforestry note elie.pptx
 
Silvicultural characteristics of three tree species on temperate region bish...
Silvicultural characteristics of three tree species on temperate region  bish...Silvicultural characteristics of three tree species on temperate region  bish...
Silvicultural characteristics of three tree species on temperate region bish...
 
Shelterbelts and windbreaks
Shelterbelts and windbreaksShelterbelts and windbreaks
Shelterbelts and windbreaks
 
Introduction to forestry
Introduction to forestry Introduction to forestry
Introduction to forestry
 
ROLE OF AGROFORESTRY IN MITIGATION OF CLIMATE CHANGE
ROLE OF AGROFORESTRY IN MITIGATION OF CLIMATE CHANGEROLE OF AGROFORESTRY IN MITIGATION OF CLIMATE CHANGE
ROLE OF AGROFORESTRY IN MITIGATION OF CLIMATE CHANGE
 
Forest classification
Forest classificationForest classification
Forest classification
 
Forest classification
Forest classificationForest classification
Forest classification
 
Growing and Tending Your Forest: An introduction to silviculture
Growing and Tending Your Forest: An introduction to silvicultureGrowing and Tending Your Forest: An introduction to silviculture
Growing and Tending Your Forest: An introduction to silviculture
 
Role of agroforestry in augmenting crop productivity
Role of agroforestry in augmenting crop productivityRole of agroforestry in augmenting crop productivity
Role of agroforestry in augmenting crop productivity
 
Role of silviculture in forest management
Role of silviculture in forest managementRole of silviculture in forest management
Role of silviculture in forest management
 
Normal forest – growing stock and increment
Normal forest – growing stock and incrementNormal forest – growing stock and increment
Normal forest – growing stock and increment
 
Forest mensuration slide 1
Forest mensuration slide 1Forest mensuration slide 1
Forest mensuration slide 1
 

Similar to Lec.01_Unit I_Introduction about forest.ppt

Introduction to Indian forest and terms related to forestry.pptx
Introduction to Indian forest and terms related to forestry.pptxIntroduction to Indian forest and terms related to forestry.pptx
Introduction to Indian forest and terms related to forestry.pptx
AkhilKanukula2
 
Introduction to forestry
Introduction to forestryIntroduction to forestry
Introduction to forestry
Vivek Srivastava
 
Silviculture-Gen.ppt
Silviculture-Gen.pptSilviculture-Gen.ppt
Silviculture-Gen.ppt
lalitsharma2194
 
Introduction of forestry
Introduction of forestryIntroduction of forestry
Introduction of forestry
Sushila Bhatta
 
Forest types and their management in Pakistan
Forest types and their management in PakistanForest types and their management in Pakistan
Forest types and their management in Pakistan
SajidHussain361
 
Forestry
ForestryForestry
Abdul azeez maruf olayemi comparative enviromental law
Abdul azeez maruf olayemi   comparative enviromental lawAbdul azeez maruf olayemi   comparative enviromental law
Abdul azeez maruf olayemi comparative enviromental law
Abdul Azeez Maruf, Ph.D, MCIArb
 
Philippine forest
Philippine forestPhilippine forest
Philippine forest
Jen Flores
 
siliviculture.pptx
siliviculture.pptxsiliviculture.pptx
siliviculture.pptx
SANGEETHA BOSE
 
Session 13 - Forest Ecosystem-1
Session 13 - Forest Ecosystem-1Session 13 - Forest Ecosystem-1
Session 13 - Forest Ecosystem-1
Ajay Mohan Goel
 
Forest Resources and Management
Forest Resources and ManagementForest Resources and Management
Forest Resources and Management
MuhammadIqbalMeer
 
Forest : Our Lifeline
Forest : Our LifelineForest : Our Lifeline
Forest : Our Lifeline
DiyaTMintoxon
 
Muthu's Project-1.pdf
Muthu's Project-1.pdfMuthu's Project-1.pdf
Muthu's Project-1.pdf
MANOJR340129
 
A forest is an area with a high density of trees
A forest is an area with a high density of treesA forest is an area with a high density of trees
A forest is an area with a high density of treespuvakrish
 
Forest Interior Songbirds and Climate Change on Private Land
Forest Interior Songbirds and Climate Change on Private LandForest Interior Songbirds and Climate Change on Private Land
Forest Interior Songbirds and Climate Change on Private Land
Northern Institute of Applied Climate Science
 
Sustainable management of natural resources
Sustainable management of natural resourcesSustainable management of natural resources
Sustainable management of natural resources
KushalS16
 
Keep Forests Health: A Tool to Assess Resilience, Health and Productivity
Keep Forests Health: A Tool to Assess Resilience, Health and ProductivityKeep Forests Health: A Tool to Assess Resilience, Health and Productivity
Keep Forests Health: A Tool to Assess Resilience, Health and Productivity
Northern Institute of Applied Climate Science
 
Introduction kithugala
Introduction kithugala Introduction kithugala
Introduction kithugala
melkasewwandi
 
man made forests-Vims.pptx
man made forests-Vims.pptxman made forests-Vims.pptx
man made forests-Vims.pptx
Vimal Priya subramanian
 

Similar to Lec.01_Unit I_Introduction about forest.ppt (20)

Introduction to Indian forest and terms related to forestry.pptx
Introduction to Indian forest and terms related to forestry.pptxIntroduction to Indian forest and terms related to forestry.pptx
Introduction to Indian forest and terms related to forestry.pptx
 
Introduction to forestry
Introduction to forestryIntroduction to forestry
Introduction to forestry
 
Silviculture-Gen.ppt
Silviculture-Gen.pptSilviculture-Gen.ppt
Silviculture-Gen.ppt
 
Introduction of forestry
Introduction of forestryIntroduction of forestry
Introduction of forestry
 
Forest types and their management in Pakistan
Forest types and their management in PakistanForest types and their management in Pakistan
Forest types and their management in Pakistan
 
Forestry
ForestryForestry
Forestry
 
Abdul azeez maruf olayemi comparative enviromental law
Abdul azeez maruf olayemi   comparative enviromental lawAbdul azeez maruf olayemi   comparative enviromental law
Abdul azeez maruf olayemi comparative enviromental law
 
Philippine forest
Philippine forestPhilippine forest
Philippine forest
 
Indian forets
Indian foretsIndian forets
Indian forets
 
siliviculture.pptx
siliviculture.pptxsiliviculture.pptx
siliviculture.pptx
 
Session 13 - Forest Ecosystem-1
Session 13 - Forest Ecosystem-1Session 13 - Forest Ecosystem-1
Session 13 - Forest Ecosystem-1
 
Forest Resources and Management
Forest Resources and ManagementForest Resources and Management
Forest Resources and Management
 
Forest : Our Lifeline
Forest : Our LifelineForest : Our Lifeline
Forest : Our Lifeline
 
Muthu's Project-1.pdf
Muthu's Project-1.pdfMuthu's Project-1.pdf
Muthu's Project-1.pdf
 
A forest is an area with a high density of trees
A forest is an area with a high density of treesA forest is an area with a high density of trees
A forest is an area with a high density of trees
 
Forest Interior Songbirds and Climate Change on Private Land
Forest Interior Songbirds and Climate Change on Private LandForest Interior Songbirds and Climate Change on Private Land
Forest Interior Songbirds and Climate Change on Private Land
 
Sustainable management of natural resources
Sustainable management of natural resourcesSustainable management of natural resources
Sustainable management of natural resources
 
Keep Forests Health: A Tool to Assess Resilience, Health and Productivity
Keep Forests Health: A Tool to Assess Resilience, Health and ProductivityKeep Forests Health: A Tool to Assess Resilience, Health and Productivity
Keep Forests Health: A Tool to Assess Resilience, Health and Productivity
 
Introduction kithugala
Introduction kithugala Introduction kithugala
Introduction kithugala
 
man made forests-Vims.pptx
man made forests-Vims.pptxman made forests-Vims.pptx
man made forests-Vims.pptx
 

More from HINDUJA20

Breeds of Buffalo.pdf
Breeds of Buffalo.pdfBreeds of Buffalo.pdf
Breeds of Buffalo.pdf
HINDUJA20
 
genemappingppt-170209023430.pptx
genemappingppt-170209023430.pptxgenemappingppt-170209023430.pptx
genemappingppt-170209023430.pptx
HINDUJA20
 
kvkkrishivigyankendra-191119175544 (1).pdf
kvkkrishivigyankendra-191119175544 (1).pdfkvkkrishivigyankendra-191119175544 (1).pdf
kvkkrishivigyankendra-191119175544 (1).pdf
HINDUJA20
 
Crop voyage in India.pptx
Crop voyage in India.pptxCrop voyage in India.pptx
Crop voyage in India.pptx
HINDUJA20
 
FAME THE GAME 27.07.2023.pptx
FAME THE GAME 27.07.2023.pptxFAME THE GAME 27.07.2023.pptx
FAME THE GAME 27.07.2023.pptx
HINDUJA20
 
2. 19PED101 Kabaddi (31.01.2023).pdf
2. 19PED101 Kabaddi (31.01.2023).pdf2. 19PED101 Kabaddi (31.01.2023).pdf
2. 19PED101 Kabaddi (31.01.2023).pdf
HINDUJA20
 
biopesticides-150723082006-lva1-app6891.pdf
biopesticides-150723082006-lva1-app6891.pdfbiopesticides-150723082006-lva1-app6891.pdf
biopesticides-150723082006-lva1-app6891.pdf
HINDUJA20
 
aex113.pptx
aex113.pptxaex113.pptx
aex113.pptx
HINDUJA20
 
entomology2-230422093827-3aa4d1be.pdf
entomology2-230422093827-3aa4d1be.pdfentomology2-230422093827-3aa4d1be.pdf
entomology2-230422093827-3aa4d1be.pdf
HINDUJA20
 
Presentation_skills[1].ppsx
Presentation_skills[1].ppsxPresentation_skills[1].ppsx
Presentation_skills[1].ppsx
HINDUJA20
 

More from HINDUJA20 (10)

Breeds of Buffalo.pdf
Breeds of Buffalo.pdfBreeds of Buffalo.pdf
Breeds of Buffalo.pdf
 
genemappingppt-170209023430.pptx
genemappingppt-170209023430.pptxgenemappingppt-170209023430.pptx
genemappingppt-170209023430.pptx
 
kvkkrishivigyankendra-191119175544 (1).pdf
kvkkrishivigyankendra-191119175544 (1).pdfkvkkrishivigyankendra-191119175544 (1).pdf
kvkkrishivigyankendra-191119175544 (1).pdf
 
Crop voyage in India.pptx
Crop voyage in India.pptxCrop voyage in India.pptx
Crop voyage in India.pptx
 
FAME THE GAME 27.07.2023.pptx
FAME THE GAME 27.07.2023.pptxFAME THE GAME 27.07.2023.pptx
FAME THE GAME 27.07.2023.pptx
 
2. 19PED101 Kabaddi (31.01.2023).pdf
2. 19PED101 Kabaddi (31.01.2023).pdf2. 19PED101 Kabaddi (31.01.2023).pdf
2. 19PED101 Kabaddi (31.01.2023).pdf
 
biopesticides-150723082006-lva1-app6891.pdf
biopesticides-150723082006-lva1-app6891.pdfbiopesticides-150723082006-lva1-app6891.pdf
biopesticides-150723082006-lva1-app6891.pdf
 
aex113.pptx
aex113.pptxaex113.pptx
aex113.pptx
 
entomology2-230422093827-3aa4d1be.pdf
entomology2-230422093827-3aa4d1be.pdfentomology2-230422093827-3aa4d1be.pdf
entomology2-230422093827-3aa4d1be.pdf
 
Presentation_skills[1].ppsx
Presentation_skills[1].ppsxPresentation_skills[1].ppsx
Presentation_skills[1].ppsx
 

Recently uploaded

general properties of oerganologametal.ppt
general properties of oerganologametal.pptgeneral properties of oerganologametal.ppt
general properties of oerganologametal.ppt
IqrimaNabilatulhusni
 
GBSN- Microbiology (Lab 3) Gram Staining
GBSN- Microbiology (Lab 3) Gram StainingGBSN- Microbiology (Lab 3) Gram Staining
GBSN- Microbiology (Lab 3) Gram Staining
Areesha Ahmad
 
Penicillin...........................pptx
Penicillin...........................pptxPenicillin...........................pptx
Penicillin...........................pptx
Cherry
 
filosofia boliviana introducción jsjdjd.pptx
filosofia boliviana introducción jsjdjd.pptxfilosofia boliviana introducción jsjdjd.pptx
filosofia boliviana introducción jsjdjd.pptx
IvanMallco1
 
Lab report on liquid viscosity of glycerin
Lab report on liquid viscosity of glycerinLab report on liquid viscosity of glycerin
Lab report on liquid viscosity of glycerin
ossaicprecious19
 
plant biotechnology Lecture note ppt.pptx
plant biotechnology Lecture note ppt.pptxplant biotechnology Lecture note ppt.pptx
plant biotechnology Lecture note ppt.pptx
yusufzako14
 
In silico drugs analogue design: novobiocin analogues.pptx
In silico drugs analogue design: novobiocin analogues.pptxIn silico drugs analogue design: novobiocin analogues.pptx
In silico drugs analogue design: novobiocin analogues.pptx
AlaminAfendy1
 
EY - Supply Chain Services 2018_template.pptx
EY - Supply Chain Services 2018_template.pptxEY - Supply Chain Services 2018_template.pptx
EY - Supply Chain Services 2018_template.pptx
AlguinaldoKong
 
Body fluids_tonicity_dehydration_hypovolemia_hypervolemia.pptx
Body fluids_tonicity_dehydration_hypovolemia_hypervolemia.pptxBody fluids_tonicity_dehydration_hypovolemia_hypervolemia.pptx
Body fluids_tonicity_dehydration_hypovolemia_hypervolemia.pptx
muralinath2
 
FAIR & AI Ready KGs for Explainable Predictions
FAIR & AI Ready KGs for Explainable PredictionsFAIR & AI Ready KGs for Explainable Predictions
FAIR & AI Ready KGs for Explainable Predictions
Michel Dumontier
 
Earliest Galaxies in the JADES Origins Field: Luminosity Function and Cosmic ...
Earliest Galaxies in the JADES Origins Field: Luminosity Function and Cosmic ...Earliest Galaxies in the JADES Origins Field: Luminosity Function and Cosmic ...
Earliest Galaxies in the JADES Origins Field: Luminosity Function and Cosmic ...
Sérgio Sacani
 
Anemia_ different types_causes_ conditions
Anemia_ different types_causes_ conditionsAnemia_ different types_causes_ conditions
Anemia_ different types_causes_ conditions
muralinath2
 
Structural Classification Of Protein (SCOP)
Structural Classification Of Protein  (SCOP)Structural Classification Of Protein  (SCOP)
Structural Classification Of Protein (SCOP)
aishnasrivastava
 
justice-and-fairness-ethics with example
justice-and-fairness-ethics with examplejustice-and-fairness-ethics with example
justice-and-fairness-ethics with example
azzyixes
 
ESR_factors_affect-clinic significance-Pathysiology.pptx
ESR_factors_affect-clinic significance-Pathysiology.pptxESR_factors_affect-clinic significance-Pathysiology.pptx
ESR_factors_affect-clinic significance-Pathysiology.pptx
muralinath2
 
Hemostasis_importance& clinical significance.pptx
Hemostasis_importance& clinical significance.pptxHemostasis_importance& clinical significance.pptx
Hemostasis_importance& clinical significance.pptx
muralinath2
 
RNA INTERFERENCE: UNRAVELING GENETIC SILENCING
RNA INTERFERENCE: UNRAVELING GENETIC SILENCINGRNA INTERFERENCE: UNRAVELING GENETIC SILENCING
RNA INTERFERENCE: UNRAVELING GENETIC SILENCING
AADYARAJPANDEY1
 
Structures and textures of metamorphic rocks
Structures and textures of metamorphic rocksStructures and textures of metamorphic rocks
Structures and textures of metamorphic rocks
kumarmathi863
 
Multi-source connectivity as the driver of solar wind variability in the heli...
Multi-source connectivity as the driver of solar wind variability in the heli...Multi-source connectivity as the driver of solar wind variability in the heli...
Multi-source connectivity as the driver of solar wind variability in the heli...
Sérgio Sacani
 
Richard's entangled aventures in wonderland
Richard's entangled aventures in wonderlandRichard's entangled aventures in wonderland
Richard's entangled aventures in wonderland
Richard Gill
 

Recently uploaded (20)

general properties of oerganologametal.ppt
general properties of oerganologametal.pptgeneral properties of oerganologametal.ppt
general properties of oerganologametal.ppt
 
GBSN- Microbiology (Lab 3) Gram Staining
GBSN- Microbiology (Lab 3) Gram StainingGBSN- Microbiology (Lab 3) Gram Staining
GBSN- Microbiology (Lab 3) Gram Staining
 
Penicillin...........................pptx
Penicillin...........................pptxPenicillin...........................pptx
Penicillin...........................pptx
 
filosofia boliviana introducción jsjdjd.pptx
filosofia boliviana introducción jsjdjd.pptxfilosofia boliviana introducción jsjdjd.pptx
filosofia boliviana introducción jsjdjd.pptx
 
Lab report on liquid viscosity of glycerin
Lab report on liquid viscosity of glycerinLab report on liquid viscosity of glycerin
Lab report on liquid viscosity of glycerin
 
plant biotechnology Lecture note ppt.pptx
plant biotechnology Lecture note ppt.pptxplant biotechnology Lecture note ppt.pptx
plant biotechnology Lecture note ppt.pptx
 
In silico drugs analogue design: novobiocin analogues.pptx
In silico drugs analogue design: novobiocin analogues.pptxIn silico drugs analogue design: novobiocin analogues.pptx
In silico drugs analogue design: novobiocin analogues.pptx
 
EY - Supply Chain Services 2018_template.pptx
EY - Supply Chain Services 2018_template.pptxEY - Supply Chain Services 2018_template.pptx
EY - Supply Chain Services 2018_template.pptx
 
Body fluids_tonicity_dehydration_hypovolemia_hypervolemia.pptx
Body fluids_tonicity_dehydration_hypovolemia_hypervolemia.pptxBody fluids_tonicity_dehydration_hypovolemia_hypervolemia.pptx
Body fluids_tonicity_dehydration_hypovolemia_hypervolemia.pptx
 
FAIR & AI Ready KGs for Explainable Predictions
FAIR & AI Ready KGs for Explainable PredictionsFAIR & AI Ready KGs for Explainable Predictions
FAIR & AI Ready KGs for Explainable Predictions
 
Earliest Galaxies in the JADES Origins Field: Luminosity Function and Cosmic ...
Earliest Galaxies in the JADES Origins Field: Luminosity Function and Cosmic ...Earliest Galaxies in the JADES Origins Field: Luminosity Function and Cosmic ...
Earliest Galaxies in the JADES Origins Field: Luminosity Function and Cosmic ...
 
Anemia_ different types_causes_ conditions
Anemia_ different types_causes_ conditionsAnemia_ different types_causes_ conditions
Anemia_ different types_causes_ conditions
 
Structural Classification Of Protein (SCOP)
Structural Classification Of Protein  (SCOP)Structural Classification Of Protein  (SCOP)
Structural Classification Of Protein (SCOP)
 
justice-and-fairness-ethics with example
justice-and-fairness-ethics with examplejustice-and-fairness-ethics with example
justice-and-fairness-ethics with example
 
ESR_factors_affect-clinic significance-Pathysiology.pptx
ESR_factors_affect-clinic significance-Pathysiology.pptxESR_factors_affect-clinic significance-Pathysiology.pptx
ESR_factors_affect-clinic significance-Pathysiology.pptx
 
Hemostasis_importance& clinical significance.pptx
Hemostasis_importance& clinical significance.pptxHemostasis_importance& clinical significance.pptx
Hemostasis_importance& clinical significance.pptx
 
RNA INTERFERENCE: UNRAVELING GENETIC SILENCING
RNA INTERFERENCE: UNRAVELING GENETIC SILENCINGRNA INTERFERENCE: UNRAVELING GENETIC SILENCING
RNA INTERFERENCE: UNRAVELING GENETIC SILENCING
 
Structures and textures of metamorphic rocks
Structures and textures of metamorphic rocksStructures and textures of metamorphic rocks
Structures and textures of metamorphic rocks
 
Multi-source connectivity as the driver of solar wind variability in the heli...
Multi-source connectivity as the driver of solar wind variability in the heli...Multi-source connectivity as the driver of solar wind variability in the heli...
Multi-source connectivity as the driver of solar wind variability in the heli...
 
Richard's entangled aventures in wonderland
Richard's entangled aventures in wonderlandRichard's entangled aventures in wonderland
Richard's entangled aventures in wonderland
 

Lec.01_Unit I_Introduction about forest.ppt

  • 1. LECTURE – 1 Introduction about Forest UNIT I: Forest and Forestry Dr. V.S. Ramachandran Centre for Environmental Studies AVVP, ETTIMADAI Mobile: +91 95855 40134 (call & Whatsapp enabled) Mail: s_ramachandran@cb.amrita.edu
  • 2. What is a forest? Simple: A larger area dominated by trees FAO: A forest is a land area of more than 0.5 ha, with a tree canopy cover of more than 10%, which is not primarily under agricultural or other specific non-forest land use. Trees should be able to reach a minimum height of 5 m at maturity in situ.
  • 3. What is a forest?
  • 4. What is a forest? Chakravarthy, A. 2016. Lost in definition. Down to Earth, 25 (6): 16-18.
  • 5. Definition of forestry 5 Forestry The art, science and practice of creating, conserving and managing trees, forests, and utilization of their resources Forestry is an applied science and in favourable localities, this science is applied to get maximum return and so it is called intensive forestry
  • 6. Definition of forestry 6 Forestry Intensive forestry: Defined as the practice of forestry with the object of obtaining the maximum output in volume and quality of products per unit area through the application of the best techniques of silviculture and management
  • 7. Definition of forestry 7 Forestry Silviculture: The art, science, and practice of establishing, tending, and reproducing forest stands of desired characteristics.
  • 8. Definition of forestry 8 Forestry When forestry is practiced to achieve more than one purpose, it is called multiple-use forestry Multiple-use forestry: Defined as the practice of forestry for the simultaneous use of a forest area for two or more purposes, often with conflicting interests such as wood production, wildlife conservation, recreation, aesthetics, or clean air
  • 9. Branches of forestry 9 Silviculture Agroforestry Dendrology – wood science Forest Botany & Ecology Wildlife Biology Forest Utilisation: Wood and Non-wood Forest Products Forest Genetics & Tree breeding Forest Management: Economics, Statistics, Social, Remote Sensing & GIS Forest Protection: Entomology & Pathology
  • 10. Basic terms related to forestry 10 Riparian Forest: Forested areas along a body of water such as river, stream, pond, lake, marshland, estuary, canal or reservoir. Species composition: All species across genuses that collectively make up the diversity of trees existing in a forest.
  • 11. Basic terms related to forestry 11 Canopy: The uppermost layer in a forest, formed collectively by tree crowns. Crown: The top part of the tree from which branches grow above them OR Branches and foliage at top of an individual tree
  • 12. Basic terms related to forestry 12 Crown closure: The point in forest development when the lateral branches from adjacent trees touch, significantly reducing growing space and the amount of sunlight that reaches the forest floor.
  • 13. Basic terms related to forestry 13 Closed canopy forest or closed forest: Forest in which the crowns or canopies of individual trees overlap to form a virtually continuous layer so that light can barely penetrate to reach the forest floor. Open canopy forests or open forest: forest in which the individual tree crowns do not overlap to form a continuous canopy layer but are more widely spaced, leaving open sunlit areas within the forest.
  • 14. Basic terms related to forestry 14 Forest Type: Groups of tree species growing in the same stand because their environmental requirements are similar. Stand: An easily defined area of the forest that is relatively uniform in species composition, age structure and condition and can be managed as a single unit.
  • 15. Basic terms related to forestry 15 Forester: Professional with experience in a broad range of forest-related topics including forest and wildlife ecology, economics, legal issues, and the growing and harvesting of forest products.
  • 16. Basic terms related to forestry 16 Stand structure: The distribution, both vertical and horizontal, of all living and dead vegetative components in the forest, including trees, crown layers, shrubs, snags (standing, dead or dying trees), downed debris, etc.
  • 17. Basic terms related to forestry 17 Climax species: Also called late-successional, are plant species that will remain essentially unchanged in terms of species composition for as long as a site remains undisturbed. They are the most shade-tolerant species of tree to establish in the process of forest succession. Pioneers: Shade-intolerant species that are the first plants to colonise a barren land or a freshly disturbed or abandoned site.
  • 18. Basic terms related to forestry 18 Alien species: Non-native organisms that become established in a new environment. Invasive species: Any kind of living organism — an amphibian, plant, insect, fish, fungus, bacteria — that is not native to an ecosystem & which causes harm. It has a tendency to spread, which is believed to cause damage to the environment.
  • 19. Basic terms related to forestry 19 Pulpwood: Wood used in the manufacture of paper, fiberboard, or other wood fiber products. Non-timber Forest Products: All forest products except timber, including resins, oils, leaves, bark, plants other than trees, fungi, and animal or animal products.
  • 20. Basic terms related to forestry 20 Forest degradation: Changes within the forest whether natural or human-induced which negatively affect the structure or function of the stand or site, and thereby lower the capacity to supply products and/or services resulting to a degraded forest.
  • 21. Basic terms related to forestry 21 Forest fragmentation: The breaking up of large forest areas into smaller units either by natural processes or through conversion to other land uses. Natural habitats become separated into isolated fragments or “islands.”
  • 22. Basic terms related to forestry 22 Stocking: A relative term indicating the amount of growing space being occupied by trees and the amount of growing space that is available or unoccupied. Overstocked: A stand that is overcrowded, beyond 100 percent stocking, thus reducing tree growth and vigour.
  • 23. Basic terms related to forestry 23 Fully stocked: A stand where trees effectively occupy most of the growing space, yet space remains for further crown expansion and growth of developing crop trees. For example, a stand fully stocked at 70 % can grow suitably until reaching 100 % stocking.
  • 24. Basic terms related to forestry 24 Forest Management Plan: Written guidelines for current and future management practices recommended to meet an owner’s objectives. Logging: it is the process of cutting trees, processing them, and moving them to a location for transport.
  • 25. Basic terms related to forestry 25 Coupe: specific area of land that is scheduled to be harvested within a specified period of time, may be in a single operation. Also referred to as felling coupe or annual coupe. Rotation: The number of years required to establish and grow trees to a specified size, product, or level of maturity.
  • 26. Basic terms related to forestry 26 Growing stock: Volume of all living trees in a given area of forest or plantation that have more than a certain diameter at breast height. It is usually measured in solid cubic metres (m3).
  • 27. Basic terms related to forestry 27 Cull: A tree or log of marketable size but do not meet the lowest quality standards because of crookedness, rot, injuries, or damage from disease or insects and thus is useless for all but firewood or pulpwood.
  • 28. Basic terms related to forestry 28 Clear-cut harvest: A harvest and regeneration practice that removes all trees within a given area. Used most commonly in forests that require full sunlight to regenerate or areas where young forests are the preferred habitat. Improvement cut: An intermediate silvicultural treatment made to improve the form, quality, heath, or wildlife potential of the remaining stand.
  • 29. Basic terms related to forestry 29 Regeneration cut: Any silvicultural practice with the intent to reestablish a new stand of seedlings. Salvage cut: The harvesting of dead or damaged trees or of trees in danger of being killed by insects, disease, flooding, or other factors.
  • 30. Basic terms related to forestry 30 Sanitation cut: A harvest done as a precautionary mechanism to remove potentially highly susceptible trees from oncoming insects or disease before trees become infected by the pest organism.