1. SAMPLING TECHNICS
BY :
Darma Yeliza Putra
Yulia Nirwana
Fatwa Utami
Basic Competence
Can Understand about Vegetation sampling Technics
Indicator
Explain the kinds of vegetation samplingtechnics
Do the vegetation sampling with plot or without plot
Main Material
Vegetation sampling technics
1. Technics with plot
2. Technics without plot

2. Mind Map
Material
Test

3. Sampling
technics
Defenition
Function
Mind Map
Material
Test
Type
Supporting
component
With Plot
method
Without plot
method
2 form method
Forming of
sampling unit

4. Sampling
technics
Defenition
Function
Mind Map
Material
Test
Type
Supporting
component
With Plot
method
Without plot
method
2 form method
Forming of
sampling unit

5. Mind Map
Material
Test
Defenition
Function
Supporting
component
Type
Form of sampling
unit

6. Defenition
The technics use to measure, to know, to get
information about a vegetation with fast, easy, less
need money, and less need energy. Because we just
take some data to represent all data in a vegetation
Diferent with
Sensus method
We must take all of data
information about a vegetation and
that must invetarisation

7. Function
To get the validation data with :
Easy
Fast
No more need money
No more need the energy

8. Supporting
component
Morphology (life form) of plant
Agihan/ persebaran
Experiment purpose
Prize and energy that need

9. Form of sampling
unit
1. Quadrat
2. Line/ jalur
3. Point

10. Form of sampling
unit
1. Quadrat
2. Line/ jalur
3. Point
• Like square, “long square”, cycle
1. Smanll quadrat for homogen vegetation
2. Big quadrat for heterogen vegetation
Characteristic of quadrat /plot
1. Must compose of all plant in a community
2. That habitat in quadrat must homogen
By oosting, quadrat can devide into 3
1. Quadrat 10 x 10 m for trees strate
2. 4 x 4 m fot lignosus vegetation strate at undergrowt
until 3 m tall
3. 1x 1 m for under vegetation

11. PARA PENELITI EKOLOGI HUTAN UMUMNYA MEMBEDAKAN
POHON DALAM BEBERAPA TINGKAT PERTUMBUHAN, YAITU :
 SEMAI (PERMUDAAN TINGKAT KECAMBAH SAMPAI
TINGGI <1,5 M).
UKURAN PLOT 1 X 1 ATAU 2 X 2 M
 PANCANG (PERMUDAAN DENGAN TINGGI >1,5 M SAMPAI
POHON MUDA DENGAN DIAMETER <10 CM).
UKURAN PLOT 5 X 5 M.
 TIANG (POHON MUDA DENGAN DIAMETER 10 – 20 CM).
UKURAN PLOT 10 X 10 M
 POHON DEWASA (DIAMETER BATANG >20 CM).
UKURAN PLOT 20 X 20M
(KUSMANA, 1997)
Form of sampling
unit
1. Quadrat
2. Line/ jalur
3. Point

12. Type
With plot method
Without plot method
METODE SPECIES AREA
CURVE (MINIMAL AREA)
METODE KUADRAT
Metode Point Intercept
(Metode Titik Sentuh)
Metode Line Intercept
(Metode Garis Sentuh)
Metode Point-Centered Quartered
Distance Method
(Metode Jarak)

13. METODE SPECIES AREA
CURVE (MINIMAL AREA)
The technics with plot
where, we must see the
“LUAS TERKECIL” that
represent all of a vegetation
characteristic

14. METODE KUADRAT The sampling technics
like square or cycle
with a wide that
support by vegetation
form
Type Base on sum of plot Single plot
Multiply plot
others Metode jalur/transek
Metode garis berpetak
Metode kombinasi

15. Single plot
• Make one sampling plot with a
size that represent a TEGAKAN
• The Plot size can make with
species area curve method
• The plot can devide into small
plot again
• usually for homogen
information vegetation

16. Multiply plot
• Use many plot that in area
will observe
• The plot can arrange with
sistematis or random

17. Metode jalur/transek

18. Metode garis berpetak
Modification of technic from multiply plot or
jalur method that jump of plots in jalur rintis
make the plot and another plot have same
distance.
20m x 20m : trees
10m x 10m : poles
5m x 5m : sapling
2m x 2m : seedling/ tumbuhan bawah.

19. Metode kombinasi
• This method is combination
between jalur method and line
with plot
• Trees can measure with jalur
method with wide 20 m
• And for poles, sapling,
seedling use line with plot
method

20. Without plot method
At the basic concept, this technics use the
measure of distance between one plant and
anothers plant that have small distance that
mean the vegetation is re-peattedly
Some advantages :
• save the time
• decrease of mistake when make the sampling
• Decrease of mistake when we say the plant at inner place or outer place

21. Metode Point Intercept
(Metode Titik Sentuh)
• Special for herba plant that very rough
arrangement
• Use the point frecuency frame and
quadrat point tools
• The process, with write the plant that
first touch by pin of tools
How use the point intercept methods?
Choose the vegetation we will observe
Take the point frecuency frame tools with re-
peattedly
Write the first plant that have been pin

22. Metode Line Intercept
(Metode Garis Sentuh)
• Agree with determine the cover and
frecuency at perdu layers
• Transek change with line form
• All of tajuk daun that struck by the line
must measure the length
• If the line use 100 m size, so the cover
is per 100 m
• So, if we use the point intercept
methods and line intercept methods will
get 2 parameters, such as :
•Cover
•frecuency

23. Metode Point-Centered Quartered
• Special for trees vegetation measure
• this methods so easy to get information
about trees, aspecially for kinds
composition, Dominancy level,
“menaksir” trees volume
• Character this methods, the trees must
in random distribution arrange
• Make one point at centre and some
imagination line that make 4 quadran
• Chooce one trees for each quadran that
near with point and measure the distance
between trees and point
•And measure the braest high of trees

24. Distance Method
(Metode Jarak)
• Can measure the 3 parameters, such as : cover, frecuency
and density
• Sum of individu can determine with measure distance
between for each individu or between sampling point and
plant
By Grant Cottam dan John Curtis from
wisconsin univercity at 1950-an
• Metode individu terdekat (nearest individual
method)
• Metode titik pusat kuadrat (point-centered
quarter method)
• Metode tetangga terdekat (nearest neighbor
method)
• Metode berpasangan acak (random pairs
method)